10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)
Q	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended September 30, 2016
or
o	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from to

Commission File Number: 001-34516

Cowen Group, Inc.

(Exact name of registrant as specified in its charter)

Delaware (State or Other Jurisdiction of Incorporation or Organization)	27-0423711 (I.R.S. Employer Identification No.)
599 Lexington Avenue New York, New York (Address of Principal Executive Offices)	10022 (Zip Code)

(646) 562-1000

(Registrant's telephone number, including area code)

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes Q    No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes  Q  No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definitions of “large accelerated filer,” “accelerated filer,” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer o Accelerated filer Q Non-accelerated filer o (Do not check if a smaller reporting company) Smaller reporting company o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes o    No Q

APPLICABLE ONLY TO CORPORATE ISSUERS:

As of October 28, 2016 there were 107,314,244 shares of the registrant's common stock outstanding.

Item No.			Page No.
PART I. FINANCIAL INFORMATION			4
	1. Unaudited Condensed Consolidated Financial Statements		4
		Condensed Consolidated Statements of Financial Condition	4
		Condensed Consolidated Statements of Operations	5
		Condensed Consolidated Statements of Comprehensive Income (Loss)	6
		Condensed Consolidated Statements of Changes in Equity	7
		Condensed Consolidated Statements of Cash Flows	8
		Notes to Condensed Consolidated Financial Statements	10
	2. Management's Discussion and Analysis of Financial Condition and Results of Operations		53
	3. Quantitative and Qualitative Disclosures About Market Risk		86
	4. Controls and Procedures		86
PART II. OTHER INFORMATION			86
	1. Legal Proceedings		86
	1A. Risk Factors		87
	2. Unregistered Sales of Equity Securities and Use of Proceeds		87
	3. Defaults Upon Senior Securities		88
	4. Mine Safety Disclosures		88
	5. Other Information		88
	6. Exhibits		88
SIGNATURES			89
EXHIBIT INDEX			E - 1

2

Special Note Regarding Forward-Looking Statements

We have made statements in this Quarterly Report on Form 10-Q (including in “Management's Discussion and Analysis of Financial Condition and Results of Operations”) that are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. In some cases, you can identify these statements by forward-looking terms such as “may,” “might,” “will,” “would,” “could,” “should,” “expect,” “plan,” “anticipate,” “believe,” “estimate,” “predict,” “project,” “possible,” “potential,” “intend,” “seek” or “continue,” the negative of these terms and other comparable terminology or similar expressions. In addition, our management may make forward-looking statements to analysts, representatives of the media and others. These forward-looking statements represent only the Company's beliefs regarding future events (many of which, by their nature, are inherently uncertain and beyond our control) and are predictions only, based on our current expectations and projections about future events. There are important factors that could cause our actual results, level of activity, performance or achievements to differ materially from those expressed or implied by the forward-looking statements. In particular, you should consider the risks contained in Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2015 as well as Item 1A of this periodic report on Form 10-Q for the quarterly period ended September 30, 2016.

Although we believe the expectations reflected in the forward-looking statements are reasonable, we cannot guarantee future results, level of activity, performance or achievements. Moreover, neither we nor any other person assumes responsibility for the accuracy or completeness of any of these forward-looking statements. You should not rely upon forward-looking statements as predictions of future events. We undertake no obligation to update any of these forward-looking statements after the date of this filing to conform our prior statements to actual results or revised expectations.

Unaudited Condensed Consolidated Financial Statements are presented for the three and nine months endedSeptember 30, 2016 and 2015. The Consolidated Financial Statements as of December 31, 2015 were audited.

3

PART I. FINANCIAL INFORMATION

Item 1. Unaudited Condensed Consolidated Financial Statements

Cowen Group, Inc.

Condensed Consolidated Statements of Financial Condition

(dollars in thousands, except share and per share data)

(unaudited)

	As of September 30, 2016			As of December 31, 2015
Assets
Cash and cash equivalents	$	76,925		$	158,485
Cash collateral pledged	13,783			10,085
Securities owned, at fair value	544,644			610,234
Receivable on derivative contracts, at fair value	27,428			39,618
Other investments	167,450			140,647
Receivable from brokers	77,631			117,757
Fees receivable, net of allowance	45,787			34,413
Due from related parties	32,539			39,659
Fixed assets, net of accumulated depreciation and amortization of $24,170 and $29,953, respectively	43,463			27,231
Goodwill	60,678			58,361
Intangible assets, net of accumulated amortization of $28,114 and $28,301, respectively	27,073			25,663
Deferred tax asset, net	151,237			143,560
Other assets	53,081			71,531
Consolidated Funds
Cash and cash equivalents	10,370			13,934
Securities owned, at fair value	71,456			32,000
Receivable on derivative contracts, at fair value	429			—
Other investments	391,872			263,818
Receivable from brokers	5,333			—
Other assets	999			663
Total Assets	$	1,802,178		$	1,787,659
Liabilities and Stockholders' Equity
Liabilities
Securities sold, not yet purchased, at fair value	$	212,183		$	257,159
Payable for derivative contracts, at fair value	17,021			21,183
Payable to brokers	127,216			131,789
Compensation payable	59,103			150,403
Notes payable and other debt	78,357			68,565
Convertible debt	128,065			122,401
Fees payable	6,637			5,638
Due to related parties	257			329
Accounts payable, accrued expenses and other liabilities	62,496			52,233
Consolidated Funds
Due to related parties	—			3
Contributions received in advance	—			850
Securities sold, not yet purchased, at fair value	1,540			—
Payable to brokers	3,132			—
Payable for derivative contracts, at fair value	276			—
Capital withdrawals payable	2,378			78
Accounts payable, accrued expenses and other liabilities	410			124
Total Liabilities	699,071			810,755
Commitments and Contingencies (Note 12)
Redeemable non-controlling interests	331,883			186,911
Stockholders' equity
Preferred stock, par value $0.01 per share: 10,000,000 shares authorized, 120,750 shares issued and outstanding as of September 30, 2016 (aggregate liquidation preference of $120,750,000) and 120,750 shares issued and outstanding as of as of December 31, 2015 (aggregate liquidation preference of $120,750,000), respectively	1			1
Class A common stock, par value $0.01 per share: 250,000,000 shares authorized, 146,131,829 shares issued and 107,314,157 outstanding as of September 30, 2016 and 140,120,392 shares issued and 105,604,658 outstanding as of December 31, 2015, respectively (including 648,704 and 497,570 restricted shares, respectively)	1,167			1,167
Class B common stock, par value $0.01 per share: 250,000,000 authorized, no shares issued and outstanding	—			—
Additional paid-in capital	921,062			902,554
(Accumulated deficit) retained earnings	1,160			23,627
Accumulated other comprehensive income (loss)	(3		)	—
Less: Class A common stock held in treasury, at cost, 38,817,672 and 34,515,734 shares, respectively	(152,163		)	(137,356		)
Total Stockholders' Equity	771,224			789,993
Total Liabilities and Stockholders' Equity	$	1,802,178		$	1,787,659

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

4

Cowen Group, Inc.

Condensed Consolidated Statements of Operations

(dollars in thousands, except per share data)

(unaudited)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
Revenues
Investment banking	$	36,722		$	53,012		$	98,156		$	186,763
Brokerage	49,605			41,085			147,640			111,496
Management fees	10,272			10,519			31,951			31,169
Incentive income	1,284			93			2,823			365
Interest and dividends	3,906			3,604			11,664			9,846
Reimbursement from affiliates	2,140			3,355			8,268			10,499
Aircraft lease revenue	1,089			—			3,071			—
Other revenues	25,112			1,312			41,183			2,684
Consolidated Funds
Interest and dividends	904			245			3,518			685
Other revenues	(7		)	29			1,023			449
Total revenues	131,027			113,254			349,297			353,956
Expenses
Employee compensation and benefits	98,501			56,401			217,309			227,593
Floor brokerage and trade execution	8,224			6,415			23,887			18,418
Interest and dividends	7,612			7,367			21,866			19,241
Professional, advisory and other fees	5,305			6,392			16,585			16,874
Service fees	2,075			1,778			6,334			5,338
Communications	4,619			3,478			13,287			10,313
Occupancy and equipment	8,033			7,286			23,911			21,024
Depreciation and amortization	3,174			2,301			9,654			6,584
Client services and business development	6,349			5,132			20,335			18,316
Other expenses	11,898			3,783			32,328			11,442
Consolidated Funds
Interest and dividends	1,665			366			4,292			858
Professional, advisory and other fees	337			174			959			476
Floor brokerage and trade execution	173			(20		)	306			46
Other expenses	294			114			871			246
Total expenses	158,259			100,967			391,924			356,769
Other income (loss)
Net gains (losses) on securities, derivatives and other investments	26,153			(23,612		)	9,123			24,449
Consolidated Funds
Net realized and unrealized gains (losses) on investments and other transactions	19,755			333			(6,543		)	8,073
Net realized and unrealized gains (losses) on derivatives	5,368			(78		)	13,525			(404		)
Net gains (losses) on foreign currency transactions	(26		)	(13		)	72			(45		)
Total other income (loss)	51,250			(23,370		)	16,177			32,073
Income (loss) before income taxes	24,018			(11,083		)	(26,450		)	29,260
Income tax expense (benefit)	8,759			(5,081		)	(6,553		)	5,212
Net income (loss)	15,259			(6,002		)	(19,897		)	24,048
Net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	18,478			4,344			(2,524		)	10,980
Net income (loss) attributable to Cowen Group, Inc.	(3,219		)	(10,346		)	(17,373		)	13,068
Preferred stock dividends	1,698			1,603			5,094			2,358
Net income (loss) attributable to Cowen Group, Inc. common stockholders	$	(4,917	)	$	(11,949	)	$	(22,467	)	$	10,710
Weighted average common shares outstanding:
Basic	107,974			109,191			107,272			111,050
Diluted	107,974			109,191			107,272			117,249
Earnings (loss) per share:
Basic	$	(0.05	)	$	(0.11	)	$	(0.21	)	$	0.10
Diluted	$	(0.05	)	$	(0.11	)	$	(0.21	)	$	0.09

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

5

Cowen Group, Inc.

Condensed Consolidated Statements of Comprehensive Income (Loss)

(dollars in thousands)

(unaudited)

	Nine Months Ended September 30, 2016						Nine Months Ended September 30, 2015
Net income (loss)				$	(19,897	)				$	24,048
Other comprehensive income (loss), net of tax:
Foreign currency translation		(3	)					(4	)
Total other comprehensive income (loss), net of tax				(3		)				(4		)
Comprehensive income (loss)				$	(19,900	)				$	24,044

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

6

Cowen Group, Inc.

Condensed Consolidated Statements of Changes in Equity

(dollars in thousands, except share data)

(unaudited)

	Common Shares Outstanding		Common Stock		Preferred Shares Outstanding	Preferred Stock		Treasury Stock			Additional Paid-in Capital			Accumulated Other Comprehensive Income (Loss)			Retained Earnings/ (Accumulated deficit)			Total Stockholders' Equity			Redeemable Non-controlling Interest
Balance, December 31, 2015	105,604,658		$	1,167	120,750	$	1	$	(137,356	)	$	902,554		$	—		$	23,627		$	789,993		$	186,911
Net income (loss)	—		—		—	—		—			—			—			(17,373		)	(17,373		)	(2,524		)
Foreign currency translation	—		—		—	—		—			—			(3		)	—			(3		)	—
Capital contributions	—		—		—	—		—			—			—			—			—			236,720
Capital withdrawals	—		—		—	—		—			—			—			—			—			(16,182		)
Deconsolidation of entity	—		—		—	—		—			—			—			—			—			(73,042		)
Restricted stock awards issued	6,011,437		—		—	—		—			—			—			—			—			—
Purchase of treasury stock, at cost	(4,301,938	)	—		—	—		(14,807		)	—			—			—			(14,807		)	—
Preferred stock dividends (See Note 14)	—		—		—	—		—			—			—			(5,094		)	(5,094		)	—
Income tax effect from share based compensation	—		—		—	—		—			(763		)	—			—			(763		)	—
Amortization of share based compensation	—		—		—	—		—			19,271			—			—			19,271			—
Balance, September 30, 2016	107,314,157		$	1,167	120,750	$	1	$	(152,163	)	$	921,062		$	(3	)	$	1,160		$	771,224		$	331,883
	Common Shares Outstanding		Common Stock		Preferred Shares Outstanding	Preferred Stock		Treasury Stock			Additional Paid-in Capital			Accumulated Other Comprehensive Income (Loss)			Retained Earnings/ (Accumulated deficit)			Total Stockholders' Equity			Redeemable Non-controlling Interest
Balance, December 31, 2014	111,691,199		$	1,160	—	$	—	$	(79,771	)	$	772,296		$	17		$	(16,027	)	$	677,675		$	86,076
Net income (loss)	—		—		—	—		—			—			—			13,068			13,068			10,980
Foreign currency translation	—		—		—	—		—			—			(4		)	—			(4		)	—
Capital contributions	—		—		—	—		—			—			—			—			—			88,740
Capital withdrawals	—		—		—	—		—			—			—			—			—			(14,551		)
Restricted stock awards issued	4,027,405		—		—	—		—			—			—			—			—			—
Purchase of treasury stock, at cost	(9,269,163	)	—		—	—		(50,253		)	—			—			—			(50,253		)	—
Preferred stock issuance, net of issuance costs (See Note 14)	—		—		120,750	1		—			117,194			—			—			117,195			—
Preferred stock dividends (See Note 14)	—		—		—	—		—			—			—			(2,358		)	(2,358		)	—
Common stock issued upon acquisition (See Note 2)	548,625		6		—	—		—			3,002			—			—			3,008			—
Capped call option transaction (See Note 14)	—		—		—	—		—			(15,878		)	—			—			(15,878		)	—
Income tax effect from share based compensation	—		—		—	—		—			3,714			—			—			3,714			—
Stock options exercised (see Note 10)	100,002		1		—	—		—			394			—			—			395
Amortization of share based compensation	—		—		—	—		—			16,211			—			—			16,211			—
Balance, September 30, 2015	107,098,068		$	1,167	120,750	$	1	$	(130,024	)	$	896,933		$	13		$	(5,317	)	$	762,773		$	171,245

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

7

Cowen Group, Inc. Condensed Consolidated Statements of Cash Flows (dollars in thousands) (unaudited)
	Nine Months Ended September 30,
	2016			2015
Cash flows from operating activities:
Net income (loss)	$	(19,897	)	$	24,048
Adjustments to reconcile net income (loss) to net cash provided by / (used in) operating activities:
Depreciation and amortization	9,654			6,584
Net gain on sale of divested business	(15,638		)	—
Amortization of debt issuance costs	894			—
Amortization of debt discount	5,107			4,674
Tax benefit (expense) from share-based payment arrangements	(764		)	3,714
Share-based compensation	19,271			16,211
Deferred tax benefit	(6,913		)	(2,050		)
Deferred rent obligations	(634		)	(2,113		)
Net loss on disposal of fixed assets	—			54
Contingent liability adjustment	2,139			—
Purchases of securities owned, at fair value	(3,050,670		)	(4,650,626		)
Proceeds from sales of securities owned, at fair value	3,173,147			4,556,647
Proceeds from sales of securities sold, not yet purchased, at fair value	2,343,063			2,003,879
Payments to cover securities sold, not yet purchased, at fair value	(2,442,968		)	(1,940,343		)
Net (gains) losses on securities, derivatives and other investments	(23,706		)	(32,719		)
Consolidated Funds
Purchases of securities owned, at fair value	(60,187		)	(12,000		)
Proceeds from sales of securities owned, at fair value	27,010			—
Proceeds from sales of securities sold, not yet purchased, at fair value	2,226			—
Payments to cover securities sold, not yet purchased, at fair value	(1,098		)	—
Purchases of other investments	(221,897		)	(78,491		)
Proceeds from sales of other investments	14,086			18,722
Net realized and unrealized (gains) losses on investments and other transactions	(4,505		)	(6,749		)
(Increase) decrease in operating assets:
Cash collateral pledged	(3,698		)	(823		)
Securities owned, at fair value, held at broker-dealer	(26,048		)	20,696
Receivable on derivative contracts, at fair value	12,191			8,290
Securities borrowed	—			676,100
Receivable from brokers	40,126			(26,744		)
Fees receivable, net of allowance	(12,536		)	(6,952		)
Due from related parties	6,914			106
Other assets	(23,446		)	(919		)
Consolidated Funds
Cash and cash equivalents	3,564			(16,124		)
Receivable on derivative contracts, at fair value	(429		)	—
Receivable from brokers	(5,333		)	—
Other assets	(336		)	780
Increase (decrease) in operating liabilities:
Securities sold, not yet purchased, at fair value, held at broker-dealer	21,954			(7,134		)
Payable for derivative contracts, at fair value	(4,162		)	(15,252		)
Securities loaned	—			(682,493		)
Payable to brokers	(4,573		)	(7,010		)
Compensation payable	(99,217		)	(41,628		)
Fees payable	999			12,965
Due to related parties	(72		)	(154		)
Accounts payable, accrued expenses and other liabilities	3,863			(7,746		)
Consolidated Funds
Contributions received in advance	(850		)	5,000
Payable to brokers	3,131			—
Payable for derivative contracts, at fair value	276			—
Due to related parties	264			1,000
Accounts payable, accrued expenses and other liabilities	286			67
Net cash provided by / (used in) operating activities	$	(339,412	)	$	(178,533	)
The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

8

Cowen Group, Inc. Condensed Consolidated Statements of Cash Flows (dollars in thousands) (unaudited)
	Nine Months Ended September 30,
(continued)	2016			2015
Cash flows from investing activities:
Purchases of other investments	$	(25,689	)	$	(10,259	)
Purchase of business, net of cash acquired (Note 2)	(6,258		)	(14,936		)
Proceeds from sales of other investments	29,814			37,368
Proceeds from loans held for investment	41,600			—
Proceeds from divested business, net of cash divested	17,303			—
Purchase of fixed assets	(14,913		)	(5,191		)
Net cash provided by / (used in) investing activities	41,857			6,982
Cash flows from financing activities:
Proceeds from issuance of preferred stock, net of issuance costs	—			117,194
Capped call option transaction	—			(15,879		)
Borrowings on notes and other debt	30,638			2,140
Repayments on notes and other debt	(28,345		)	(2,655		)
Income tax effect from share-based payment arrangements	(764		)	3,714
Proceeds from stock options exercised	—			395
Purchase of treasury stock	(6,014		)	(41,697		)
Cash paid to acquire net assets (contingent liability payment)	(2,358		)	(1,725		)
Capital contributions by redeemable non-controlling interests in operating entities	—			5,644
Capital withdrawals to redeemable non-controlling interests in operating entities	(6,995		)	(8,203		)
Consolidated Funds
Capital contributions by redeemable non-controlling interests in Consolidated Funds	236,720			83,097
Capital withdrawals to redeemable non-controlling interests in Consolidated Funds	(6,887		)	(7,129		)
Net cash provided by / (used in) financing activities	215,995			134,896
Change in cash and cash equivalents	(81,560		)	(36,655		)
Cash and cash equivalents at beginning of period	158,485			129,509
Cash and cash equivalents at end of period	$	76,925		$	92,854
Supplemental non-cash information
Purchase of treasury stock, at cost, through net settlement (see Note 14)	$	8,793		$	8,556
Notes payable increase through asset acquisition	$	7,164		$	—
Preferred stock dividends declared (See Note 14)	$	5,094		$	2,358
Net assets (liabilities) acquired upon acquisition (net of cash) (See Note 2)	$	—		$	11,688
Common stock issuance upon close of acquisition (see Note 2)	$	—		$	3,008

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

9

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements

(unaudited)

1. Organization and Business

Cowen Group, Inc., a Delaware corporation formed in 2009, is a diversified financial services firm and, together with its consolidated subsidiaries (collectively, “Cowen,” “Cowen Group” or the “Company”), provides alternative investment management, investment banking, research, sales and trading and prime brokerage services through its two business segments: alternative investment and broker-dealer. The Company's alternative investment segment, includes hedge funds, private equity structures, registered investment companies and listed vehicles. The Company's broker-dealer segment offers research, sales and trading, prime brokerage and investment banking services to companies and primarily institutional investor clients. Our primary target sectors are healthcare, technology, media and telecommunications, information and technology services, consumer, aerospace and defense, industrials,and energy and transportation sectors.

2. Acquisitions and Divestitures

Acquisitions

Low Country

On April 22, 2016, Cowen Aviation Finance Holdings Inc. ("Cowen Aviation Finance") entered into a transaction whereby Cowen Aviation Finance acquired Low Country III, LLC, which is comprised of a portfolio of four specialized aircraft currently on lease in exchange for an immaterial upfront payment and a minority equity interest in Cowen Aviation Finance. As part of the transaction Cowen Aviation Finance also acquired the associated debt financing and lease contracts for each aircraft. Separate from the transaction, Cowen Aviation Finance entered into services agreements with Tempus Applied Solutions, Inc., a related party through common directors, which, among other services, will provide marketing, maintenance, and lease administration services for Cowen Aviation Finance's current aircraft fleet. This acquisition was accounted for as an asset acquisition in accordance with accounting principles generally accepted in the United States of America ("US GAAP") because, upon separation from the seller, the acquired assets do not meet the definition of a business.

CRT business

On May 6, 2016, the Company completed its previously announced acquisition of the credit products, credit research, special situations and emerging markets units from CRT Capital Group LLC (“CRT”). The acquisition was completed for a combination of cash of $6.3 million and contingent consideration payable annually based on future revenues exceeding specific targets. In the aggregate, the purchase price, assets acquired and liabilities assumed were not significant and the near term impact to the Company and its consolidated results of operations and cash flows is not expected to be significant. Following the acquisition, the businesses acquired from CRT are included in the broker-dealer segment.

In accordance with the terms of the purchase agreement, the Company is required to pay to the sellers a portion of future revenue of the business exceeding specified targets over the period through June 2018. The Company estimated the contingent consideration using the income approach (discounted cash flow method) which requires the Company to make estimates and assumptions regarding the future cash flows and profits. Changes in these estimates and assumptions could have a significant impact on the amount recognized. On the acquisition date, the undiscounted amount ranged from zero to $8.0 million.

The acquisition was accounted for under the acquisition method of accounting in accordance with US GAAP. As such, the results of operations of the businesses acquired are included in the accompanying condensed consolidated statements of operations since the date of the acquisition and the assets acquired, liabilities assumed and the resulting goodwill were recorded at their fair values within their respective line items on the accompanying condensed consolidated statement of financial condition (see Note 8).

The Company is currently in the process of finalizing the valuation for certain acquired assets of CRT; therefore, the fair value measurements as of September 30, 2016 and goodwill are preliminary and subject to adjustments.

The Company recognized approximately $0.4 million of acquisition-related costs, including legal, accounting, and valuation services. These costs are included in professional, advisory and other fees in the accompanying condensed consolidated statements of operations. The Company also assumed contractual obligations toward certain employees which will vest over a 12 month period. These obligations are recorded as compensation expense on a straight line basis.

The results of operations of the businesses acquired from CRT for the period from May 6, 2016 through September 30, 2016 are integrated with the broker-dealer business and are included within respective line items. Included in the accompanying condensed consolidated statements of operations for the three and nine months endedSeptember 30, 2016 are

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revenues of $9.7 million and $13.1 million, respectively and net income of $1.4 million and $1.9 million, respectively (excluding corporate allocated expenses) related to the businesses acquired from CRT.

Concept and Conifer

During the year ended December 31, 2015, the Company completed two acquisitions. On September 1, 2015, the Company completed its acquisition of all of the outstanding interests in Concept Capital Markets, LLC ("Concept") offering prime brokerage services and outsourced trading. On October 1, 2015 the Company completed its acquisition of all of the outstanding interests in Conifer Securities, LLC ("Conifer") representing the prime brokerage services division of Conifer Financial Services LLC. Following the acquisitions, Concept was renamed Cowen Prime Services LLC ("Cowen Prime") and Conifer was renamed Cowen Prime Services Trading LLC ("Cowen Prime Trading"). Both were registered broker-dealers (members Financial Industry Regulatory Authority "FINRA" and Securities Industry Protection Corporation "SIPC"). Following the acquisitions, Conifer and Concept were integrated. During the second quarter of 2016, Cowen Prime Trading's broker-dealer withdrawal request, filed with FINRA, became effective and the business was combined into Cowen Prime.

The acquisitions were accounted for under the acquisition method of accounting in accordance with US GAAP. As such, the results of operations for Concept and Conifer are included in the accompanying condensed consolidated statements of operations since the dates of the respective acquisitions and the assets acquired, liabilities assumed and the resulting goodwill were recorded at their fair values within their respective line items on the accompanying condensed consolidated statement of financial condition.

The Company is currently in the process of finalizing the valuation for certain acquired assets of Concept and Conifer; therefore, the fair value measurements and goodwill are preliminary and subject to measurement period adjustments. The allocation of the purchase price to the net assets acquired will be finalized as necessary, up to one year after the acquisitions' respective closing dates, as the information becomes available. Both of the acquisitions were not deemed material individually but were material in the aggregate.

Included in the accompanying condensed consolidated statements of operations for the three and nine months endedSeptember 30, 2016 are revenues of $8.6 million and $30.7 million and net income of $0.4 million and $2.8 million, respectively (excluding corporate allocated expenses) related to the Concept and Conifer combined results of operations.

The following unaudited supplemental pro forma information presents consolidated financial results for the nine months ended September 30, 2015 as if the acquisitions were completed as of the beginning of that period. This supplemental pro forma information has been prepared for comparative purposes only and is not intended to be indicative of what the Company's results would have been had the acquisitions been completed on January 1, 2015, nor does it purport to be indicative of any future results.

	For the nine months ended September 30, 2015
	(dollars in thousands,  except per share data)
	(unaudited)
Revenues	$	385,932
Net income (loss) attributable to Cowen Group, Inc. common stockholders	10,672
Net income per common share:
Basic	$	0.10
Diluted	$	0.09

Divestitures

On September 23, 2016, the Company and the portfolio managers ofRamius Alternative Solutions LLC("RASL")completed the sale of their respective ownership interests in RASL, an investment advisor, and RASL was deconsolidated as of that date. RASL offered a range of customized hedge fund investment solutions with approximately$2.5 billionin client assets. In accordance with the terms of the agreement, the Company was only required to transfer an immaterial target working capital balance on the closing date. The net consideration received by the Company was approximately$17.3 million. Along with the target working capital transferred at closing, the Company alsoallocated a portion of goodwill associated with the alternative investment segment to the sale pricewhich is shown net in other revenues in the accompanying consolidated statements of operations.

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As the Company will continue to offer its alternative investment platform to institutional and retail investors, the sale was not presented as discontinued operations. The overall impact on the consolidated financial position, results of operations and cash flows is not expected to be significant.

3. Significant Accounting Policies

a. Basis of Presentation

These unaudited condensed consolidated financial statements are prepared in accordance with US GAAP as promulgated by the Financial Accounting Standards Board ("FASB") through Accounting Standards Codification as the source of authoritative accounting principles in the preparation of financial statements, and include the accounts of the Company, its operating and other subsidiaries, and entities in which the Company has a controlling financial interest or a general partner interest. All material intercompany transactions and balances have been eliminated on consolidation. Certain fund entities that are consolidated in these accompanying condensed consolidated financial statements, as further discussed below, are not subject to the consolidation provisions with respect to their own controlled investments pursuant to their specialized accounting.

The Company serves as the managing member/general partner and/or investment manager to affiliated fund entities which it sponsors and manages. Funds in which the Company has a controlling financial interest are consolidated with the Company pursuant to US GAAP as described below. Consequently, the Company's condensed consolidated financial statements reflect the assets, liabilities, income and expenses of these funds on a gross basis. The ownership interests in these funds that are not owned by the Company are reflected as redeemable non-controlling interests in consolidated subsidiaries in the accompanying condensed consolidated financial statements. The management fees and incentive income earned by the Company from these funds are eliminated in consolidation.

The year-end condensed balance sheet data was derived from the audited financial statements, but does not include all disclosures included in the audited financial statements.

b. Principles of consolidation

The Company consolidates all entities that it controls through a majority voting interest or otherwise, including those funds in which the Company either directly or indirectly has a controlling financial interest. In addition, the Company consolidates all variable interest entities for which it is the primary beneficiary.

The Company adopted the new accounting pronouncement regarding consolidation accounting using the modified retrospective method with an effective adoption date of January 1, 2016. The modified retrospective method did not require the restatement of prior year periods. The adoption of the new accounting pronouncement also resulted in a reclassification of certain entities which were previously considered voting interest entities and are considered variable interest entities.

In accordance with these standards, the Company presently consolidatessixfunds for which it acts as the general partner and investment manager. As of September 30, 2016 the Company consolidated the following funds: Ramius Enterprise LP (“Enterprise LP”), Ramius Merger Fund LLC (the "Merger Fund"), Cowen Private Investments LP ("Cowen Private"), Ramius Archview Credit and Distressed Fund ("Archview Feeder Fund"), Ramius Archview Credit and Distressed Master Fund ("Archview Master Fund"), (as of May 1, 2016) Caerus Select Fund LP ("Caerus LP") and (as of July 11, 2016) Ramius Merger Arbitrage UCITS Fund ("UCITS Fund") (collectively the "Consolidated Funds").

The Company determines whether it has a controlling financial interest in an entity by first evaluating whether the entity is a voting operating entity ("VOE") or a variable interest entity ("VIE") under US GAAP.

Voting Operating Entities—VOEs are entities in which (i) the total equity investment at risk is sufficient to enable the entity to finance its activities independently and (ii) the equity holders at risk have the obligation to absorb losses, the right to receive residual returns and the right to direct the activities of the entity that most significantly impact the entity's economic performance.

Under US GAAP, the usual condition for a controlling financial interest in a VOE is ownership of a majority voting interest. Accordingly, the Company consolidates all VOEs in which it owns a majority of the entity's voting shares or units.

In connection with the adoption, the Company reevaluated all of its investment products for consolidation. As of January 1, 2016, the Company deconsolidated Quadratic Fund LLC ("Quadratic LLC") as the Company did not hold a significant voting interest in the fund. The adoption of the new accounting pronouncement also resulted in a reclassification of certain entities for which the Company was presumed to have control and will now be VIEs.

Variable Interest Entities—VIEs are entities that lack one or more of the characteristics of a VOE. In accordance with US GAAP, an enterprise must consolidate all VIEs of which it is the primary beneficiary. Under the US GAAP consolidation

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model for VIEs, an enterprise that (1) has the power to direct the activities of a VIE that most significantly impacts the VIE's economic performance, and (2) has an obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE, is considered to be the primary beneficiary of the VIE and thus is required to consolidate it.

The Company reconsiders whether it is the primary beneficiary of a VIE by performing a periodic qualitative and/or quantitative analysis of the VIE that includes a review of, among other things, its capital structure, contractual agreements between the Company and the VIE, the economic interests that create or absorb variability, related party relationships and the design of the VIE.As ofSeptember 30, 2016 and December 31, 2015, the total net assets of the consolidated VIEs were$452.0 million and $1.5 million, respectively. The VIEs act as investment managers and/or investment companies that may be managed by the Company or the Company may have equity interest in those investment companies. The VIEs are financed through their operations and/or loan agreements with the Company.

As of September 30, 2016the Company holds variable interests in Ramius Enterprise Master Fund Ltd (“Enterprise Master”), Ramius Merger Master Fund Ltd ("Merger Master") and Caerus Select Master Fund Ltd ("Caerus Master") (collectively the “Unconsolidated Master Funds”) through the Consolidated Funds. Investment companies, which account for their investments under the specialized industry accounting guidance for investment companies prescribed under US GAAP, are not subject to the consolidation provisions for their investments. Therefore, the Company has not consolidated the Unconsolidated Master Funds.

In the ordinary course of business, the Company also sponsors various other entities that it has determined to be VIEs. These VIEs are primarily funds and real estate entities for which the Company serves as the general partner, managing member and/or investment manager with decision-making rights.

The Company does not consolidate the Unconsolidated Master Funds or real estate entities that are VIEs as it has concluded that it is not the primary beneficiary in each instance. Fund investors are entitled to all of the economics of these VIEs with the exception of the management fee and incentive income, if any, earned by the Company. The Company's involvement with funds and real estate entities that are unconsolidated VIEs is limited to providing investment management services in exchange for management fees and incentive income. Although the Company may advance amounts and pay certain expenses on behalf of the funds and real estate entities that it considers to be VIEs, it does not provide, nor is it required to provide, any type of substantive financial support to these entities outside of regular investment management services (see Note 5for additional disclosures on VIEs).

Equity Method Investments—For operating entities over which the Company exercises significant influence but which do not meet the requirements for consolidation as outlined above, the Company uses the equity method of accounting. The Company's investments in equity method investees are recorded in other investments in the accompanying condensed consolidated statements of financial condition. The Company's share of earnings or losses from equity method investees is included in net gains (losses) on securities, derivatives and other investments in the accompanying condensed consolidated statements of operations.

The Company evaluates its equity method investments for impairment whenever events or changes in circumstances indicate that the carrying amounts of such investments may not be recoverable. The difference between the carrying value of the equity method investment and its estimated fair value is recognized as an impairment charge when the loss in value is deemed other than temporary.

Other—If the Company does not consolidate an entity, apply the equity method of accounting or account for an investment under the cost method, the Company accounts for such entities (primarily, all securities of such entity which are bought and held principally for the purpose of selling them in the near term as trading securities) in accordance with US GAAP, at fair value with unrealized gains (losses) resulting from changes in fair value reflected within net gains (losses) on securities, derivatives and other investments in the accompanying condensed consolidated statements of operations.

Retention of Specialized Accounting—The Consolidated Funds and certain other consolidated companies are investment companies and apply specialized industry accounting for investment companies. The Company has retained this specialized accounting for these funds pursuant to US GAAP. The Company reports its investments on the condensed consolidated statements of financial condition at their estimated fair value, with unrealized gains (losses) resulting from changes in fair value reflected within net realized and unrealized gains (losses) on investments and other transactions. Accordingly, the accompanying condensed consolidated financial statements reflect different accounting policies for investments depending on whether or not they are held through a consolidated investment company. In addition, the Company's broker-dealer subsidiaries, Cowen and Company, LLC ("Cowen and Company"), ATM Execution LLC ("ATM Execution"), Cowen International Limited

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("CIL"), Ramius UK Ltd. ("Ramius UK") and Cowen Prime apply the specialized industry accounting for brokers and dealers in securities also prescribed under US GAAP. The Company also retains specialized accounting in consolidation.

c. Use of estimates

The preparation of the accompanying condensed consolidated financial statements in conformity with US GAAP requires the management of the Company to make estimates and assumptions that affect the fair value of securities and other investments, the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the accompanying condensed consolidated financial statements, the accounting for goodwill and identifiable intangible assets and the reported amounts of revenues and expenses during the reporting period. Actual results could materially differ from those estimates.

d. Valuation of investments and derivative contracts

US GAAP establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (level 1 measurements) and the lowest priority to unobservable inputs (level 3 measurements). Thethreelevels of the fair value hierarchy are as follows:

Level 1 Inputs that reflect unadjusted quoted prices in active markets for identical assets or liabilities that the Company has

the ability to access at the measurement date;

Level 2     Inputs other than quoted prices that are observable for the asset or liability either directly or indirectly, including

inputs in markets that are not considered to be active; and

Level 3 Fair value is determined based on pricing inputs that are unobservable and includes situations where there is little,

if any, market activity for the asset or liability. The determination of fair value for assets and liabilities in this

category requires significant management judgment or estimation.

Inputs are used in applying the various valuation techniques and broadly refer to the assumptions that market participants use to make valuation decisions, including assumptions about risk. Inputs may include price information, volatility statistics, specific and broad credit data, liquidity statistics, and other factors. A financial instrument's level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. However, the determination of what constitutes “observable” requires significant judgment by the Company. The Company considers observable data to be that market data which is readily available, regularly distributed or updated, reliable and verifiable, not proprietary, and provided by independent sources that are actively involved in the relevant market. The categorization of a financial instrument within the hierarchy is based upon the pricing transparency of the instrument and does not necessarily correspond to the Company's perceived risk of that instrument.

The Company and its operating subsidiaries act as the manager for the Consolidated Funds. Both the Company and the Consolidated Funds hold certain investments which are valued by the Company, acting as the investment manager. The fair value of these investments is generally estimated based on proprietary models developed by the Company, which include discounted cash flow analysis, public market comparables, and other techniques and may be based, at least in part, on independently sourced market information. The material estimates and assumptions used in these models include the timing and expected amount of cash flows, the appropriateness of discount rates used, and, in some cases, the ability to execute, timing of, and estimated proceeds from expected financings. Significant judgment and estimation goes into the selection of an appropriate valuation methodology as well as the assumptions used in these models, and the timing and actual values realized with respect to investments could be materially different from values derived based on the use of those estimates. The valuation methodologies applied impact the reported value of the Company's investments and the investments held by the Consolidated Funds in the consolidated financial statements. Certain of the Company's investments are relatively illiquid or thinly traded and may not be immediately liquidated on demand if needed. Fair values assigned to these investments may differ significantly from the fair values that would have been used had a ready market for the investments existed and such differences could be material.

The Company primarily uses the “market approach” to value its financial instruments measured at fair value. In determining an instrument's level within the hierarchy, the Company categorizes the Company's financial instruments intothreecategories: securities, derivative contracts and other investments. To the extent applicable, each of these categories can further be divided between those held long or sold short.

The Company has the option to measure certain financial assets and financial liabilities at fair value with changes in fair value recognized in earnings each period. The election is made on an instrument by instrument basis at initial recognition of

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Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

an asset or liability or upon an event that gives rise to a new basis of accounting for that instrument.  The Company has elected the fair value option for certain of its investments held by its operating companies.  This option has been elected because the Company believes that it is consistent with the manner in which the business is managed as well as the way that financial instruments in other parts of the business are recorded.

Securities—Securities with values based on quoted market prices in active markets for identical assets are classified within level 1 of the fair value hierarchy. These securities include active listed equities, certain U.S. government and sovereign obligations, ETF's, mutual funds and certain money market securities. The Company does not adjust the quoted price for such instruments, even in situations where the Company holds a large position and a sale could reasonably impact the quoted price.

Certain positions for which trading activity may not be readily visible, consisting primarily of convertible debt, corporate debt and loans and restricted equities, are stated at fair value and classified within level 2 of the fair value hierarchy. The estimated fair values assigned by management are determined in good faith and are based on available information considering, trading activity, broker quotes, quotations provided by published pricing services, counterparties and other market participants, and pricing models using quoted inputs, and do not necessarily represent the amounts which might ultimately be realized. As level 2 investments include positions that are not always traded in active markets and/or are subject to transfer restrictions, valuations may be adjusted to reflect illiquidity and/or non-transferability.

Derivative contracts—Derivative contracts can be exchange-traded or privately negotiated over-the-counter (“OTC”). Exchange-traded derivatives, such as futures contracts and exchange-traded option contracts, are typically classified within level 1 or level 2 of the fair value hierarchy depending on whether or not they are deemed to be actively traded. OTC derivatives, such as generic forwards, swaps and options, have inputs which can generally be corroborated by market data and are therefore classified within level 2. OTC derivatives, such as swaps and options where market data is not readily available or observable are classified as level 3.

Other investments—Other investments consist primarily of portfolio funds, real estate investments and equity method investments, which are valued as follows:

i. Portfolio funds—Portfolio funds (“Portfolio Funds”) include interests in funds and investment companies which may be managed by the Company or its affiliates. The Company follows US GAAP regarding fair value measurements and disclosures relating to investments in certain entities that calculate net asset value (“NAV”) per share (or its equivalent). The guidance permits, as a practical expedient, an entity holding investments in certain entities that either are investment companies as defined by the AICPA Audit and Accounting Guide, Investment Companies, or have attributes similar to an investment company, and calculate net asset value per share or its equivalent for which the fair value is not readily determinable, to measure the fair value of such investments on the basis of that NAV per share, or its equivalent, without adjustment.In accordance with US GAAP, investments which are valued using NAV per share as a practical expedient are not categorized within the fair value hierarchy.

ii. Real estate investments—Real estate debt and equity investments are valued at fair value. The fair value of real estate investments are estimated based on the price that would be received to sell an asset in an orderly transaction between marketplace participants at the measurement date. Real estate investments without a public market are valued based on assumptions and valuation techniques used by the Company. Such valuation techniques may include discounted cash flow analysis, prevailing market capitalization rates or earnings multiples applied to earnings from the investment, analysis of recent comparable sales transactions, actual sale negotiations and bona fide purchase offers received from third parties, consideration of the amount that currently would be required to replace the asset, as adjusted for obsolescence, as well as independent external appraisals. In general, the Company considers several valuation techniques when measuring the fair value of a real estate investment. However, in certain circumstances, a single valuation technique may be appropriate. Real estate investments are reviewed on a quarterly basis by the Company for significant changes at the property level or a significant change in the overall market which would impact the value of the real estate investment resulting in unrealized appreciation or depreciation.

Real estate and capital markets are cyclical in nature. Property and investment values are affected by, among other things, the availability of capital, occupancy rates, rental rates and interest and inflation rates. In addition, the Company invests in real estate and real estate related investments for which no liquid market exists. The market prices for such investments may be volatile and may not be readily ascertainable. Amounts ultimately realized by the Company from investments sold may differ from the fair values presented, and the differences could be material.

The Company's real estate investments are typically categorized as level 3 investments within the fair value hierarchy as management uses significant unobservable inputs in determining their estimated fair value.

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See Notes5 and 6for further information regarding the Company's investments, including equity method investments, and fair value measurements.

e. Fixed Assets

Fixed assets are stated at cost less accumulated depreciation or amortization. Leasehold improvements are amortized on a straight-line basis over the lesser of their useful life or lease term. When the Company commits to a plan to abandon fixed assets or leasehold improvements before the end of its original useful life, the estimated depreciation or amortization period is revised to reflect the shortened useful life of the asset. Other fixed assets are depreciated on a straight-line basis over their estimated useful lives.

Aircraft and related equipment, which are leased out under operating leases, are carried at cost less accumulated depreciation and are depreciated to estimated residual value using the straight-line method over the lease term or estimated useful life of the asset. Any assets received at the end of the lease are marked to the lower of cost or fair value with the adjustment recorded in other income.

Asset	Depreciable Lives	Principal Method
Telephone and computer equipment	3-8 years	Straight-line
Computer software	3-7 years	Straight-line
Furniture and fixtures	5-8 years	Straight-line
Leasehold improvements	5-15 years	Straight-line
Capitalized lease asset	5 years	Straight-line
Aircraft and related equipment	10-20 years	Straight-line
Modifications to aircraft	4-10 years	Straight-line

f. Debt

Long-term debt is carried at the principal amount borrowed net of any discount/premium. The discount is accreted to interest expense using the effective interest method over the remaining life of the underlying debt obligations. Accrued but unpaid coupon interest is included in accrued expenses and other liabilities in the accompanying condensed consolidated statements of financial condition. The Company adopted a new accounting pronouncement, during the first quarter of 2016, which reclassified the unamortized debt issuance costs in our previously reported condensed consolidated statements of financial condition from other assets to a direct reduction from the carrying amount of the debt. Notes payable and other debt and convertible debt as of December 31, 2015 was previously presented as $195.7 million. Due to the retrospective application notes payable and other debt and convertible debt is now presented as $191.0 million as of December 31, 2015.

g.    Deferred rent

Deferred rent primarily consists of step rent, allowances from landlords and valuing the Company's lease properties in accordance with US GAAP. Step rent represents the difference between actual operating lease payments due and straight-line rent expense, which is recorded by the Company over the term of the lease, including the build-out period. This amount is recorded as deferred rent in the early years of the lease, when cash payments are generally lower than straight-line rent expense, and reduced in the later years of the lease when payments begin to exceed the straight-line expense. Landlord allowances are generally comprised of amounts received and/or promised to the Company by landlords and may be received in the form of cash or free rent. These allowances are part of the negotiated terms of the lease. The Company records a receivable from the landlord and a deferred rent liability when the allowances are earned. This deferred rent is amortized into income (through lower rent expense) over the term (including the pre-opening build-out period) of the applicable lease, and the receivable is reduced as amounts are received from the landlord. Liabilities resulting from valuing the Company's leased properties acquired through business combinations are quantified by comparing the current fair value of the leased space to the current rental payments on the date of acquisition. Deferred rent, included in accounts payable, accrued expenses and other liabilities in the accompanying condensed consolidated statements of financial condition, as of September 30, 2016 and December 31, 2015 is $10.4 million and $12.0 million, respectively. Deferred rent asset, included in other assets in the accompanying condensed consolidated statements of financial condition, as of September 30, 2016 and December 31, 2015 is $0.1 million and $0.3 million, respectively.

h.     Insurance-related contracts

Premiums for insurance-related contracts are earned over the coverage period. In most cases, premiums are recognized as revenues ratably over the term of the contract with unearned premiums computed on a monthly basis. For each of its contracts, the Company determines if the contract provides indemnification against loss or liability relating to insurance risk, in

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accordance with US GAAP. If the Company determines that a contract does not expose it to a reasonable possibility of a significant loss from insurance risk, the Company records the contract under the deposit method of accounting with any net amount receivable reflected as an asset in other assets, and any net amount payable reflected as a liability within accounts payable, accrued expenses and other liabilities on the condensed consolidated statements of financial condition.

The liabilities for losses and loss adjustment expenses are recorded at the estimated ultimate payment amounts, including reported losses.  Estimated ultimate payment amounts are based upon (1) reports of losses from policyholders, (2) individual case estimates and (3) estimates of incurred but not reported losses.

Provisions for losses and loss adjustment expenses are charged to earnings after deducting amounts recovered and estimates of recoverable amounts and are included in other expenses on the condensed consolidated statements of operations.

Costs of acquiring new policies, which vary with and are directly related to the production of new policies, have been deferred to the extent that such costs are deemed recoverable from future premiums or gross profits. Such costs include commissions and allowances as well as certain costs of policy issuance and underwriting and are included within other assets on the condensed consolidated statements of financial condition.

Included in other revenues, in the accompanying condensed consolidated statements of operations, for the three and nine months endedSeptember 30, 2016 is $8.9 million and $23.2 million, respectively, related to premiums earned from the Company’s insurance and reinsurance business. Included in other expenses, in the accompanying condensed consolidated statements of operations, for the three and nine months endedSeptember 30, 2016 is $8.6 million and $20.9 million, respectively, are insurance and reinsurance business loss and claim reserves, acquisition costs and other expenses.

i.    Revenue recognition

Lease revenue

Lease revenue under operating leases is recognized on a straight-line basis over the term of the lease.

j.    Recently issued accounting pronouncements

In August 2016, the FASB issued guidance which reduces the diversity in practice as to how certain cash receipts and cash payments are presented and classified in the statement of cash flows. This guidance addresses eight specific cash flow issues with the objective of reducing the existing and potential future diversity in practice. The amendments in this guidance are effective for public business entities for fiscal years beginning after December 15, 2017 and interim periods within those fiscal years. The Company is currently evaluating the impact of this guidance on the Company’s cash flows presentation.

In March 2016, as part of its simplification initiative, the FASB issued a new accounting pronouncement which simplified the requirements for share based payments. The guidance among other things covers the income tax consequences and classification of excess tax benefit and tax withholding on the statement of cash flows. For public business entities, the guidance is effective for reporting periods beginning after December 15, 2016. The Company is currently evaluating the impact of this guidance on the Company’s financial condition, results of operations and cash flows.

In May 2014, the FASB issued guidance which amends and supersedes the revenue recognition requirements and most industry-specific guidance and creates a single source of revenue guidance.  The new guidance outlines the principles an entity must apply to measure and recognize revenue and related cash flows.  The guidance also provides a model for the measurement and recognition of gains and losses on the sale of certain non-financial assets. The guidance is effective for reporting periods beginning after December 15, 2017.  In July 2015, the FASB confirmed a deferral of the effective date by one year, with early adoption on the original effective date permitted.  In 2016, the FASB issued various new guidance to clarify the implementation guidance on principal versus agent considerations, revenue from contracts with customers and identifying performance obligations and licensing implementation.  The Company is currently evaluating the impact of this guidance on the Company’s financial condition, results of operations and cash flows.

In March 2016, as part of its simplification initiative, the FASB issued a new accounting pronouncement which eliminates the requirement that when an investment qualifies for use of the equity method as a result of an increase in the level of ownership interest or degree of influence, an investor must adjust the investment, results of operations, and retained earnings retroactively on a step-by step basis as if the equity method had been in effect during all previous periods that the investment had been held. The amendments require that the equity method investor add the cost of acquiring the additional interest in the investee to the current basis of the investor’s previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for equity method accounting. Therefore, upon qualifying for the equity method of accounting, no retroactive adjustment of the investment is required. The guidance is effective prospectively for reporting

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Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

periods beginning after December 15, 2016. The Company is currently evaluating the impact of this guidance on the Company’s financial condition, results of operations and cash flows.

In March 2016, the FASB issued two amendments relating to Derivatives and Hedging. The amendments clarify that a change in the counterparty to a derivative instrument that has been designated as the hedging instrument under Topic 815 does not, in and of itself, require de-designation of that hedging relationship provided that all other hedge accounting criteria continue to be met. The Second amendment relates to Contingent Put and call option in a debt instrument and clarify the requirements for assessing whether contingent call (put) options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt hosts when assessed under the current guidance. For public business entities the guidance is effective for reporting periods beginning after December 15, 2016. The Company is currently evaluating the impact of this guidance on the Company’s financial condition and its disclosures.

In February 2016, the FASB issued guidance which amends and supersedes its previous guidance regarding leases. The new guidance requires the lessee to recognize the right to use assets and lease liabilities that arise from leases and present them in its statement of financial condition. The recognition of these lease assets and lease liabilities represents an improvement over previous GAAP, which did not require lease assets and lease liabilities to be recognized for most leases. The recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee have not significantly changed from previous GAAP. There continues to be a differentiation between finance leases and operating leases. However, the principal difference from previous guidance is that the lease assets and lease liabilities arising from operating leases should be recognized in the statement of financial condition. For public business entities the guidance is effective for reporting periods beginning after December 15, 2018. The Company is currently evaluating the impact of this guidance on the Company’s financial condition and its disclosures.

In January 2016, as a joint project with International Accounting Standards Board (IASB), the FASB issued a new accounting pronouncement to address certain aspects of recognition, measurement, presentation and disclosure of financial instruments. The amendments in the update made improvements to US GAAP for equity investments and investments carried at amortized cost. The guidance also simplifies the impairment assessment for equity investments and clarifies the need for valuation allowance on deferred tax asset related to available for sale securities. For public business entities the guidance is effective for reporting periods beginning after December 15, 2017. The Company is currently evaluating the impact of this guidance on the Company’s financial condition and its disclosures.   

4. Cash Collateral Pledged

As of September 30, 2016 and December 31, 2015, the Company pledged cash collateral in the amount of $8.3 million and $10.1 million, respectively, which relates to letters of credit issued to the landlords of the Company's premises in New York City, Boston and San Francisco. The Company also has a letter of credit, in the amount of $5.5 million, due March 2017, for which cash is pledged as collateral under a reinsurance agreement. (See Note 13).

5. Investments of Operating Entities and Consolidated Funds

a. Operating Entities

Securities owned, at fair value

Securities owned, at fair value are held by the Company and are considered held for trading. Substantially all equity securities are pledged to the clearing brokers under terms which permit the clearing broker to sell or re-pledge the securities to others subject to certain limitations.

As of September 30, 2016 and December 31, 2015, securities owned, at fair value consisted of the following:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
U.S. Government securities (a)	$	3,776	$	3,016
Preferred stock (b)	12,964		25,563
Common stocks (b)	504,093		516,108
Convertible bonds (c)	250		819
Corporate bonds (d)	17,794		47,192
Warrants and rights	5,762		3,059
Mutual funds (e)	5		14,477
	$	544,644	$	610,234

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Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

(a) As of September 30, 2016, maturities ranged from December 2016 to August 2017 with an interest rate of 0%. As of December 31, 2015, maturities ranged from January 2016 to August 2016 with interest rates ranged between 0% to 5.95%.

(b) Included in preferred stocks are investments in securities for which the Company has elected the fair value option with the fair value of $4.2 million at September 30, 2016 and preferred and common stock of $7.7 million and $7.4 million, respectively, at December 31, 2015. These investments were acquired in connection with merchant banking transactions.

(c) As of September 30, 2016, the maturity was March 2018 with an interest rate of 8%. As of December 31, 2015, maturities ranged from July 2016 to March 2018 with interest rates ranged between 8% to 10.00%.

(d) As of September 30, 2016, maturities ranged from October 2016 to February 2046 and interest rates ranged between 3.25% to 13.00%. As of December 31, 2015, maturities ranged from March 2016 to February 2046 and interest rates ranged between 3.25% to 9.00%.

(e) Included in this amount as of December 31, 2015, are investments in affiliated funds of $13.4 million all of which was liquidated during the three months ended March 31, 2016.

Receivable on and Payable for derivative contracts, at fair value

The Company's direct involvement with derivative financial instruments includes futures, currency forwards, equity swaps, credit default swaps and options. The Company's derivatives trading activities exposes the Company to certain risks, such as price and interest rate fluctuations, volatility risk, credit risk, counterparty risk, foreign currency movements and changes in the liquidity of markets.

Upon issuance of the Company's cash convertible unsecured senior notes ("Convertible Notes") (See Note 13), the Company recognized the embedded cash conversion option at fair value of $35.7 million which is valued as of September 30, 2016 at $13.0 million and is included in payable for derivative contracts in the accompanying condensed consolidated statement of financial condition. Also, on the date of issuance of the Convertible Notes, the Company entered into a separate cash convertible note economic hedge transaction (the "Hedge Transaction") with a counterparty (the “Option Counterparty”) whereby, the Company purchased a cash settled option contract with terms identical to the conversion option embedded in the Convertible Notes and simultaneously sold an equity settled warrant with a higher strike price. The Hedge Transaction is expected to reduce the Company’s exposure to potential cash payments in excess of the principal amount of converted notes that the Company may be required to make upon conversion of the Convertible Notes. The Company paid a premium of $35.7 million for the option under the Hedge Transaction and received a premium of $15.2 million for the equity settled warrant transaction, for a net cost of $20.5 million. The Hedge Transaction is valued at $13.0 million as of September 30, 2016 and is included in receivable on derivative contracts in the accompanying condensed consolidated statement of financial condition. Aside from the initial premium paid, the Company will not be required to make any cash payments under the Hedge Transaction and could be entitled to receive an amount of cash from the Option Counterparty generally equal to the amount by which the market price per share of common stock exceeds the strike price of the Hedge Transaction during the relevant valuation period. The warrants cover 28,048,786 shares of the Company's Class A common stock and have an initial exercise price of $7.18 per share. The warrants expire over a period of 80 trading days beginning on November 14, 2018. The warrant transaction could have a dilutive effect to the extent that the market value per share of the Company’s Class A common stock exceeds the applicable strike price of the warrants.

The Company's long and short exposure to derivatives is as follows:

Receivable on derivative contracts	As of September 30, 2016				As of December 31, 2015
	Number of contracts / Notional Value		Fair value		Number of contracts / Notional Value		Fair value
	(dollars in thousands)
Futures	$	13,935	$	704	$	9,416	$	189
Currency forwards	$	59,902	17		$	67,862	659
Equity swaps	$	67,059	1,442		$	118,488	2,327
Options other (a)	242,968		22,941		289,433		31,456
Foreign currency options	$	245,700	2,324		$	283,797	4,987
			$	27,428			$	39,618

(a) Includes index, equity, commodity future and cash conversion options.

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Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

Payable for derivative contracts	As of September 30, 2016				As of December 31, 2015
	Number of contracts / Notional Value		Fair value		Number of contracts / Notional Value		Fair value
	(dollars in thousands)
Futures	$	42,736	$	1,235	$	11,995	$	101
Currency forwards	$	24,650	37		$	44,156	463
Equity and credit default swaps	$	—	—		$	7,605	71
Options other (a)	11,235		15,749		16,632		20,548
			$	17,021			$	21,183

(a) Includes index, equity, commodity future and cash conversion options.

The following tables present the gross and net derivative positions and the related offsetting amount, as of September 30, 2016 and December 31, 2015.

							Gross amounts not offset in the Condensed Consolidated Statement of Financial Condition
	Gross amounts recognized		Gross amounts offset on the Condensed Consolidated Statements of Financial Condition (a)		Net amounts included on the Condensed Consolidated Statements of Financial Condition		Financial instruments		Cash Collateral pledged (b)		Net amounts
	(dollars in thousands)
As of September 30, 2016
Receivable on derivative contracts, at fair value	$	27,428	$	—	$	27,428	$	—	$	4,278	$	23,150
Payable for derivative contracts, at fair value	17,021		—		17,021		—		37		16,984
As of December 31, 2015
Receivable on derivative contracts, at fair value	39,618		—		39,618		—		9,339		30,279
Payable for derivative contracts, at fair value	21,183		—		21,183		—		534		20,649

(a) Includes financial instruments subject to enforceable master netting provisions that are permitted to be offset to the extent an event of default has occurred.

(b) Includes the amount of collateral held or posted.

The realized and unrealized gains/(losses) related to derivatives trading activities were $(2.8) million and $(0.2) million for the three months ended September 30, 2016 and 2015 and $(10.4) million and $(5.6) million for the nine months endedSeptember 30, 2016 and 2015, respectively, and are included in other income in the accompanying condensed consolidated statements of operations.

Pursuant to the various derivatives transactions discussed above, except for the cash convertible note hedge (see Note 13) and exchange traded derivatives, the Company is required to post/receive collateral. As of September 30, 2016 and December 31, 2015, collateral consisting of $23.1 million and $27.1 million of cash, respectively, is included in receivable from brokers and payable to brokers on the accompanying condensed consolidated statements of financial condition. As of September 30, 2016 and December 31, 2015 all derivative contracts were with multiple major financial institutions.

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Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

Other investments

As of September 30, 2016 and December 31, 2015, other investments included the following:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Portfolio Funds, at fair value (1)	$	115,682	$	113,281
Equity method investments (2)	51,485		27,067
Lehman claims, at fair value	283		299
	$	167,450	$	140,647

(1) Portfolio Funds, at fair value

The Portfolio Funds, at fair value as of September 30, 2016 and December 31, 2015, included the following:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
HealthCare Royalty Partners (a)(*)	$	9,058	$	12,127
HealthCare Royalty Partners II (a)(*)	4,885		6,006
Orchard Square Partners Credit Fund LP (b)	4,241		4,170
Starboard Value and Opportunity Fund LP (c)(*)	27,984		20,369
Starboard Partners Fund LP (d)(*)	3,969		14,036
Starboard Leaders Fund LP (e)(*)	1,147		1,080
Formation8 Partners Fund I, L.P. (f)	21,784		19,454
Eclipse Ventures Fund I, L.P. (formerly Formation8 Partners Hardware Fund I, L.P.) (g)	1,705		1,101
RCG LV Park Lane LLC (h) (*)	971		809
RCGL 12E13th LLC (i) (*)	402		609
RCG Longview Debt Fund V, L.P. (i) (*)	16,325		18,147
RCG LPP2 PNW5 Co-Invest, L.P. (j) (*)	2,468		2,468
Quadratic Fund LLC (k) (*)	6,684		—
Other private investment (l) (*)	8,241		6,909
Other affiliated funds (m)(*)	5,818		5,996
	$	115,682	$	113,281

* These portfolio funds are affiliates of the Company.

The Company has no unfunded commitments regarding the portfolio funds held by the Company except as noted in Note 12.

(a) HealthCare Royalty Partners, L.P. and HealthCare Royalty Partners II, L.P. are private equity funds and therefore distributions will be made when cash flows are received from the underlying investments, typically on a quarterly basis.

(b) Orchard Square Partners Credit Fund LP has a quarterly redemption policy with a 60 day notice period and a 4% penalty on redemptions of investments of less than a year in duration.

(c) Starboard Value and Opportunity Fund LP permits quarterly withdrawals upon 90 days notice.

(d) Starboard Partners Fund LP permits redemptions on a semi-annual basis on 180 days prior written notice subsequent to an initial two year lock up.

(e) Starboard Leaders Fund LP does not permit withdrawals, but instead allows terminations with respect to capital commitments upon 30 days prior written notice at any time following the first anniversary of an investors initial capital contribution.

(f) Formation8 Partners Fund I, L.P. is a private equity fund which invests in early stage and growth transformational information and energy technology companies. Distributions will be made when the underlying investments are liquidated.

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Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

(g) Eclipse Ventures Fund I, L.P. (Formerly Formation8 Partners Hardware Fund I, L.P.) is a private equity fund which invests in early stage and growth hardware companies. Distributions will be made when the underlying investments are liquidated.

(h) RCG LV Park Lane LLC is a single purpose entity formed to participate in a joint venture which acquired, at a discount, the mortgage notes on a portfolio of multifamily real estate properties located in Birmingham, Alabama.  RCG LV Park Lane LLC is a private equity fund and therefore distributions will be made when the underlying investments are liquidated.

(i) RCGL 12E13th LLC and RCG Longview Debt Fund V, L.P. are real estate private equity structures and therefore distributions will be made when the underlying investments are liquidated.

(j) RCG LPP2 PNW5 Co-Invest, L.P. is a single purpose entity formed to participate in a joint venture which acquired five multi-unit residential rental properties located in the Pacific Northwest. RCG LPP2 PNW5 Co-Invest, L.P. is a private equity structure and therefore distributions will be made when the underlying investments are liquidated.

(k) Quadratic Fund LLC permits redemptions on a 30 days prior written notice.

(l) Other private investment represents the Company's closed end investment in a portfolio fund that invests in a wireless broadband communication provider in Italy.

(m) The majority of these funds are affiliates of the Company or are managed by the Company and the investors can redeem from these funds as investments are liquidated.

(2) Equity method investments

Equity method investments include investments held by the Company in several operating companies whose operations primarily include the day to day management of a number of real estate funds, including the portfolio management and administrative services related to the acquisition, disposition, and active monitoring of the real estate funds' underlying debt and equity investments. The Company's ownership interests in these equity method investments range from 20% to 55%. The Company holds a majority of the outstanding ownership interest (i.e., more than 50%) in RCG Longview Partners II, LLC. The operating agreement that governs the management of day-to-day operations and affairs of this entity stipulates that certain decisions require support and approval from other members in addition to the support and approval of the Company. As a result, all operating decisions made in this entity requires the support of both the Company and an affirmative vote of a majority of the other managing members who are not affiliates of the Company. As the Company does not possess control over any of these entities, the presumption of consolidation has been overcome pursuant to current accounting standards and the Company accounts for these investments under the equity method of accounting. Also included in equity method investments are the investments in (a) HealthCare Royalty Partners General Partners and (b) Starboard Value (and certain related parties) which serves as an operating company whose operations primarily include the day to day management (including portfolio management) of several activist hedge funds and related managed accounts and c) Surf House Ocean Views Holdings, LLC which is a joint venture in a real estate development project. The Company recorded no impairment charges in relation to its equity method investments for the nine months endedSeptember 30, 2016 and 2015.

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Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

The following table summarizes equity method investments held by the Company:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
RCG Longview Debt Fund IV Management, LLC	$	331	$	331
RCG Longview Debt Fund V Partners, LLC	6,594		4,655
HealthCare Royalty GP, LLC	739		989
HealthCare Royalty GP II, LLC	827		1,017
HealthCare Royalty GP III, LLC	197		88
HealthCare Overflow Fund GP, LLC	101		—
Surf House Ocean Views Holdings, LLC	13,383		—
Starboard Value LP	25,529		15,769
RCG Longview Management, LLC	714		656
RCG Urban American, LLC	107		120
RCG Urban American Management, LLC	379		379
RCG Longview Equity Management, LLC	114		114
Urban American Real Estate Fund II, LLC	1,311		1,211
RCG Kennedy House, LLC	227		304
Other	932		1,434
	$	51,485	$	27,067

For the period ended September 30, 2016, one equity method investment held by the Company has met the significance criteria as defined under SEC guidance. As such, the Company is required to present summarized financial information for the significant investee for the three and nine months ended September 30, 2016 and 2015 and such information is as follows.

Other equity method investment	Three Months Ended September 30,					Nine Months Ended September 30,
	2016		2015			2016		2015
	(dollars in thousands)
Revenues	$	9,005	$	(8,686	)	$	9,747	$	(5,182	)
Expenses	—		—			—		—
Net realized and unrealized gains (losses)	37		(132		)	92		(67		)
Net Income	$	9,042	$	(8,818	)	$	9,839	$	(5,249	)

As of September 30, 2016 and December 31, 2015, the Company's share of losses in its equity method investment in RCG Longview Partners II, LLC has exceeded the carrying amount recorded in this investee. These amounts are included in accounts payable, accrued expenses and other liabilities in the accompanying condensed consolidated statements of financial condition. RCG Longview Partners II, LLC, as general partner to a real estate fund, has reversed previously recorded incentive income allocations and has recorded a current clawback obligation to the limited partners in the fund. This obligation is due to a change in unrealized value of the fund on which there have previously been distributed carried interest realizations; however, the settlement of a potential obligation is not due until the end of the life of the respective fund. As the Company is obligated to return previous distributions it received from RCG Longview Partners II, LLC, it has continued to record its share of gains/losses in the investee including reflecting its share of the clawback obligation in the amount of $6.2 million.

The Company's income (loss) from equity method investments was a loss of $0.1 million and $5.9 million for the three months ended September 30, 2016 and 2015 and a gain of $16.0 million and $3.4 million for the nine months endedSeptember 30, 2016 and 2015, respectively, and is included in net gains (losses) on securities, derivatives and other investments on the accompanying condensed consolidated statements of operations.

Securities sold, not yet purchased, at fair value

Securities sold, not yet purchased, at fair value represent obligations of the Company to deliver a specified security at a contracted price and, thereby, create a liability to purchase that security at prevailing prices. The Company's liability for securities to be delivered is measured at their fair value as of the date of the consolidated financial statements. However, these transactions result in off-balance sheet risk, as the Company's ultimate cost to satisfy the delivery of securities sold, not yet purchased, at fair value may exceed the amount reflected in the accompanying condensed consolidated statements of financial condition. Substantially all equity securities and options are pledged to the clearing broker under terms which permit the

23

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

clearing broker to sell or re-pledge the securities to others subject to certain limitations. As of September 30, 2016 and December 31, 2015, securities sold, not yet purchased, at fair value consisted of the following:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Common stocks	$	208,491	$	257,101
Corporate bonds (a)	3,653		58
Warrants and rights	39		—
	$	212,183	$	257,159

(a) As of September 30, 2016 and December 31, 2015, the maturities ranged from June 2017 to January 2026 with interest rates ranged between 3.25% to 6.88%.

Variable Interest Entities

The total assets and liabilities of the variable interest entities for which the Company has concluded that it holds a variable interest, but for which it is not the primary beneficiary, are $5.1 billion and $0.7 billion as of September 30, 2016 and $3.1 billion and $473.3 million as of December 31, 2015, respectively. In addition, the maximum exposure relating to these variable interest entities as of September 30, 2016 was $483.9 million, and as of December 31, 2015 was $327.8 million, all of which is included in other investments, at fair value in the accompanying condensed consolidated statements of financial condition. The exposure to loss primarily relates to the Consolidated Feeder Funds' investment in their Unconsolidated Master Funds and the Company's investment in unconsolidated investment companies.

b. Consolidated Funds

Securities owned, at fair value

As of September 30, 2016 and December 31, 2015, securities owned, at fair value, held by the Consolidated Funds consisted of the following:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
U.S. Government securities (a)	$	3,999	$	—
Preferred stock	37,243		32,000
Common stocks	22,950		—
Corporate bonds (b)	5,452		—
Warrants and rights	3		—
Term Loan	1,809		—
	$	71,456	$	32,000

(a) As of September 30, 2016, maturity was December 2016 with an interest rate of 0%.

(b) As of September 30, 2016, maturities ranged from October 2017 to May 2049 and interest rates ranged between 5.88% and 14.37%.

Securities sold, not yet purchased, at fair value

As of September 30, 2016, securities sold, not yet purchased, at fair value, held by the Consolidated Funds consisted of the following:

	As of September 30, 2016
	(dollars in thousands)
Common stocks	$	395
Corporate bonds (a)	1,145
	$	1,540

(a) As of September 30, 2016, maturities ranged from September 2019 to March 2025 and interest rates ranged between 4.38% and 9.25%.

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Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

Receivable on derivative contracts

As of September 30, 2016, receivable on derivative contracts, at fair value, held by the Consolidated Funds are comprised of:

	As of September 30, 2016
	(dollars in thousands)
Currency forwards	$	1
Equity swaps	366
Options	62
	$	429

Payable for derivative contracts

As of September 30, 2016, receivable on derivative contracts, at fair value, held by the Consolidated Funds are comprised of:

	As of September 30, 2016
	(dollars in thousands)
Futures	$	246
Options	30
	$	276

Other investments, at fair value

Investments in Portfolio Funds, at fair value

As of September 30, 2016 and December 31, 2015, investments in Portfolio Funds, at fair value, included the following:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Investments of Enterprise LP	$	110,290	$	111,075
Investments of Merger Fund	275,407		74,348
Investments of Caerus Select Fund Ltd	6,175		—
Investments of Quadratic LLC	—		78,395
	$	391,872	$	263,818

Consolidated portfolio fund investments of Enterprise LP    

Enterprise LP operates under a “master-feeder” structure, whereby Enterprise Master's shareholders are Enterprise LP and RCG II Intermediate Fund, L.P. The consolidated investments in Portfolio Funds include Enterprise LP's investment of $110.3 million and $111.1 million in Enterprise Master as of September 30, 2016 and December 31, 2015, respectively. On May 12, 2010, the Company announced its intention to close Enterprise Master. Prior to this announcement, strategies utilized by Enterprise Master included merger arbitrage and activist investing, investments in distressed securities, convertible hedging, capital structure arbitrage, equity market neutral, investments in private placements of convertible securities, proprietary mortgages, structured credit investments, investments in mortgage backed securities and other structured finance products, investments in real estate and real property interests, structured private placements and other relative value strategies. Enterprise Master had broad investment powers and maximum flexibility in seeking to achieve its investment objective. Enterprise Master was permitted to invest in equity securities, debt instruments, options, futures, swaps, credit default swaps and other derivatives. As Enterprise Master winds down its positions, it will return capital to its investors. There are no unfunded commitments at Enterprise LP.

Consolidated portfolio fund investments of Merger Fund    

The Merger Fund operates under a “master-feeder” structure, whereby Ramius Merger Master Ltd's ("Merger Master") shareholders are Merger Fund and Ramius Merger Fund Ltd. The consolidated investments in Portfolio Funds include Merger Fund's investment of $275.4 million and $74.3 million in Merger Master as of September 30, 2016 and December 31, 2015, respectively. The Merger Master’s investment objective is to achieve consistent absolute returns while emphasizing the preservation of investor capital. The Merger Master seeks to achieve these objectives by taking a fundamental, research-driven

25

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

approach to investing, primarily in the securities of issuers engaged in, or subject to, announced (or unannounced but otherwise anticipated) extraordinary corporate transactions, which may include, but are not limited to, mergers, acquisitions, leveraged buyouts, tender offers, hostile takeover bids, sale processes, exchange offers, and recapitalizations. Merger Master invests in the securities of one or more issuers engaged in or subject to such extraordinary corporate transactions. Merger Master typically seeks to derive a profit by realizing the price differential, or “spread,” between the market price of securities purchased or sold short and the market price or value of securities realized in connection with the completion or termination of the extraordinary corporate transaction, or in connection with the adjustment of market prices in anticipation thereof, while seeking to minimize the market risk associated with the aforementioned investment activities. Merger Master will, depending on markets conditions, generally focus the majority of its investment program on announced transactions. If the investment manager of Merger Master considers it necessary, it may either alone or as part of a group, also initiate shareholder actions seeking to maximize value. Such shareholder actions may include, but are not limited to, re-orienting management’s focus or initiating the sale of the company (or one or more of its divisions) to a third party. There are no unfunded commitments at Merger Fund.

Consolidated portfolio fund investments of Caerus LP    

Caerus LP operates under a “master-feeder” structure, whereby Caerus Select Master Fund Ltd's ("Caerus Master") shareholder is Caerus LP. The consolidated investments in Portfolio Funds include Caerus LP's investment of $6.2 million in Caerus Master as of September 30, 2016. Caerus Master’s investment objective is to achieve superior risk-adjusted rates of return that bear little correlation to the overall market.  Caerus Master seeks to achieve this objective by utilizing a long/short investment strategy, investing primarily in equities and options on equities that trade on major global market exchanges. Caerus Master focuses on investments in the global consumer sector, including, but not limited to, securities in sub-sectors such as retail, apparel and footwear, restaurants, gaming and lodging, consumer products, food and beverage, consumer technology, media, transportation and homebuilding and building materials. There are no unfunded commitments at Caerus LP.

Consolidated portfolio fund investments of Quadratic Fund LLC     

Quadratic LLC operates under a “master-feeder” structure, whereby Quadratic Master Fund Ltd's ("Quadratic Master") shareholders are Quadratic Fund LLC and Quadratic Fund Ltd. The consolidated investments in Portfolio Funds include Quadratic Fund LLC's investment of $78.4 million in Quadratic Master as of December 31, 2015. Quadratic LLC was deconsolidated on January 1, 2016 (See Note 3). The Quadratic Master’s investment objective is to achieve attractive, risk-adjusted rates of return through the use of proprietary fundamental global macro and options/swaptions based strategies. Quadratic Master’s strategy is primarily executed via options and swaptions.

Indirect Concentration of the Underlying Investments Held by Consolidated Funds

From time to time, either directly or indirectly through its investments in the Consolidated Funds, the Company may maintain exposure to a particular issue or issuer (both long and/or short) which may account for 5% or more of the Company's equity. Based on information that is available to the Company as of September 30, 2016 and December 31, 2015, the Company assessed whether or not its interests in an issuer for which the Company's pro-rata share exceeds 5% of the Company's equity. There were no indirect concentrations that exceeded 5% of the Company's equity as of September 30, 2016 and December 31, 2015.

Underlying Investments of Unconsolidated Funds Held by Consolidated Funds

Enterprise Master and Merger Master

Enterprise LP's investment in Enterprise Master represents Enterprise LP's proportionate share of Enterprise Master's net assets; as a result, the investment balances of Enterprise Master reflected below may exceed the net investment which Enterprise LP has recorded. Merger Fund's investment in Merger Master represents Merger Fund's proportionate share of Merger Master's net assets; as a result, the investment balances of Merger Master reflected below may exceed the net investment which Merger Fund has recorded. The following tables present summarized investment information for the underlying investments and derivatives held by Enterprise Master and Merger Master as of September 30, 2016 and December 31, 2015:

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Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

Securities owned by Enterprise Master, at fair value

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Common stock	835		724
Preferred stock	1,587		1,484
Restricted stock	124		124
Rights	—		321
Trade claims	—		128
	$	2,546	$	2,781

Receivable/(Payable) on derivative contracts, at fair value, owned by Enterprise Master

	As of September 30, 2016		As of December 31, 2015
Description	(dollars in thousands)
Currency forwards	$	—	$	(4	)
	$	—	$	(4	)

Portfolio Funds, owned by Enterprise Master, at fair value

		As of September 30, 2016		As of December 31, 2015
	Strategy	(dollars in thousands)
RCG Longview Equity Fund, LP*	Real Estate	$	4,847	$	7,635
RCG Longview II, LP*	Real Estate	742		698
RCG Longview Debt Fund IV, LP*	Real Estate	1,841		3,577
RCG Soundview, LLC*	Real Estate	452		452
RCG Urban American Real Estate Fund, L.P.*	Real Estate	307		312
RCG Special Opportunities Fund, Ltd*	Multi-Strategy	95,023		81,544
RCG Energy, LLC *	Energy	—		1,189
RCG Renergys, LLC*	Energy	1		1
Other Private Investments	Various	9,164		10,515
Other Real Estate Investments *	Real Estate	4,779		5,753
		$	117,156	$	111,676

* Affiliates of the Company.

Merger Master

Securities owned by Merger Master, at fair value

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Common stocks	$	650,699	$	157,429
Corporate bonds (a)	14,443		492
	$	665,142	$	157,921

(a) As of September 30, 2016, the maturity was January 2024 with an interest rate of 6.5%. As ofDecember 31, 2015, the maturity was June 2024 with an interest rate of 5.25%.

Securities sold, not yet purchased, by Merger Master, at fair value

As of September 30, 2016 and December 31, 2015, Merger Master held common stock, sold not yet purchased, of $203.8 million and $73.8 million, respectively.

27

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Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

Receivable on derivative contracts, at fair value, owned by Merger Master

	As of September 30, 2016		As of December 31, 2015
Description	(dollars in thousands)
Options	$	2,987	$	1,275
Currency forwards	—		235
Equity swaps	2,525		1,001
	$	5,512	$	2,511

Payable for derivative contracts, at fair value, owned by Merger Master

	As of September 30, 2016		As of December 31, 2015
Description	(dollars in thousands)
Options	$	1,586	$	563
Equity swaps	—		30
	$	1,586	$	593

Caerus Master

As of September 30, 2016, Caerus Master held common stock, of $5.3 million and common stock, sold not yet purchased, of $3.8 million.

6. Fair Value Measurements for Operating Entities and Consolidated Funds

The following table presents the assets and liabilities that are measured at fair value on a recurring basis on the accompanying condensed consolidated statements of financial condition by caption and by level within the valuation hierarchy as of September 30, 2016 and December 31, 2015:

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Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

	Assets at Fair Value as of September 30, 2016
	Level 1			Level 2			Level 3			Total
				(dollars in thousands)
Operating Entities
Securities owned
US Government securities	$	3,776		$	—		$	—		$	3,776
Preferred stock	—			—			12,964			12,964
Common stocks	490,854			1,638			11,601			504,093
Convertible bonds	—			—			250			250
Corporate bonds	—			17,574			220			17,794
Warrants and rights	2,205			—			3,557			5,762
Mutual funds	5			—			—			5
Receivable on derivative contracts, at fair value
Futures	704			—			—			704
Currency forwards	—			17			—			17
Equity swaps	—			1,442			—			1,442
Options	9,484			2,820			12,961			25,265
Other investments
Lehman claim	—			—			283			283
Consolidated funds
Securities owned
US Government securities	3,999			—			—			3,999
Preferred stock	—			352			36,891			37,243
Common stocks	14,306			8,644			—			22,950
Corporate Bonds	—			5,452			—			5,452
Warrants and rights	—			—			3			3
Term Loan	—			1,809			—			1,809
Receivable on derivative contracts, at fair value
Currency forwards	—			1			—			1
Futures	—			366			—			366
Options	57			5			—			62
	$	525,390		$	40,120		$	78,730		$	644,240
Percentage of total assets measured at fair value	81.6		%	6.2		%	12.2		%
Portfolio funds measured at net asset value (a)										115,682
Consolidated funds' portfolio funds measured at net asset value (a)										391,872
Equity method investments										51,485
Total investments										$	1,203,279

29

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

	Liabilities at Fair Value as of September 30, 2016
	Level 1			Level 2			Level 3			Total
	(dollars in thousands)
Operating Entities
Securities sold, not yet purchased
Common stocks	$	208,478		$	13		$	—		$	208,491
Corporate bonds	—			3,653			—			3,653
Warrants and rights	39			—			—			39
Payable for derivative contracts, at fair value
Futures	1,235			—			—			1,235
Currency forwards	—			37			—			37
Options	2,788			—			12,961			15,749
Accounts payable, accrued expenses and other liabilities
Contingent consideration liability (b)	—			—			7,201			7,201
Consolidated funds
Securities sold, not yet purchased
Common stocks	395			—			—			395
Corporate bonds	—			1,145			—			1,145
Payable for derivative contracts, at fair value
Options	30			—			—			30
Futures	—			246			—			246
	$	212,965		$	5,094		$	20,162		$	238,221
Percentage of total liabilities measured at fair value	89.4		%	2.1		%	8.5		%

(a) In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share (or its equivalent) as a practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the condensed consolidated statement of financial condition.

(b) In accordance with the terms of the purchase agreements for acquisitions that closed during 2012 and the third and fourth quarter of 2015 and the second quarter of 2016, the Company is required to pay to the sellers a portion of future net income of the acquired businesses, if certain revenue targets are achieved through the periods ended August 2016, December 2018, December 2020, and June 2018, respectively. The Company estimated the contingent consideration liability using the income approach (discounted cash flow method) which requires the Company to make estimates and assumptions regarding the future cash flows and profits. Changes in these estimates and assumptions could have a significant impact on the amounts recognized. The undiscounted amounts as of September 30, 2016 can range from $0.1 million to $16.3 million.

30

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

	Assets at Fair Value as of December 31, 2015
	Level 1			Level 2			Level 3			Total
				(dollars in thousands)
Operating Entities
Securities owned
US Government securities	$	3,016		$	—		$	—		$	3,016
Preferred stock	7,891			4,800			12,872			25,563
Common stocks	505,303			7,527			3,278			516,108
Convertible bonds	—			—			819			819
Corporate bonds	—			47,192			—			47,192
Warrants and rights	487			—			2,572			3,059
Mutual funds	14,477			—			—			14,477
Receivable on derivative contracts, at fair value
Futures	189			—			—			189
Currency forwards	—			659			—			659
Equity swaps	—			2,327			—			2,327
Options	11,895			6,354			18,194			36,443
Other investments
Lehman claim	—			—			299			299
Consolidated funds
Preferred stock	—			—			32,000			32,000
	$	543,258		$	68,859		$	70,034		$	682,151
Percentage of total assets measured at fair value	79.6		%	10.1		%	10.3		%
Portfolio funds measured at net asset value (a)										113,281
Consolidated funds' portfolio funds measured at net asset value (a)										263,818
Equity method investments										27,067
Total investments										$	1,086,317

	Liabilities at Fair Value as of December 31, 2015
	Level 1			Level 2			Level 3			Total
	(dollars in thousands)
Securities sold, not yet purchased
Common stocks	$	257,101		$	—		$	—		$	257,101
Corporate bonds	—			58			—			58
Payable for derivative contracts, at fair value
Futures	101			—			—			101
Currency forwards	—			463			—			463
Equity and credit default swaps	—			71			—			71
Options	2,354			—			18,194			20,548
Accounts payable, accrued expenses and other liabilities
Contingent consideration liability (b)	—			—			6,158			6,158
	$	259,556		$	592		$	24,352		$	284,500
Percentage of total liabilities measured at fair value	91.2		%	0.2		%	8.6		%

(a) In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share (or its equivalent) as a practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the condensed consolidated statement of financial condition.

(b) In accordance with the terms of the purchase agreements for acquisitions that closed during 2012 and the third and fourth quarter of 2015, the Company is required to pay to the sellers a portion of future net income of the acquired businesses, if certain revenue targets are achieved through the periods ended August 2016, December 2018, and

31

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

December 2020, respectively. The Company estimated the contingent consideration liability using the income approach (discounted cash flow method) which requires the Company to make estimates and assumptions regarding the future cash flows and profits. Changes in these estimates and assumptions could have a significant impact on the amounts recognized. The undiscounted amounts as of December 31, 2015 can range from $0.1 million to $10.0 million.

The following table includes a rollforward of the amounts for the three and nine months endedSeptember 30, 2016 and 2015, for financial instruments classified within level 3. The classification of a financial instrument within level 3 is based upon the significance of the unobservable inputs to the overall fair value measurement.

	Three Months Ended September 30, 2016
	Balance at June 30, 2016		Transfers in		Transfers out				Purchases/(covers)		(Sales)/shorts			Realized and Unrealized gains/losses			Balance at September 30, 2016		Change in unrealized gains/losses relating to instruments still held (1)
	(dollars in thousands)
Operating Entities
Preferred stock	$	13,242	$	—	$	—			$	250	$	—		$	(528	)	$	12,964	$	(508	)
Common stocks	7,427		—		—				3,716		—			458			11,601		458
Convertible bonds	250		—		—				—		—			—			250		—
Corporate bond	319		—		—				—		(179		)	80			220		45
Options, asset	8,547		—		—				—		—			4,414			12,961		4,414
Options, liability	8,547		—		—				—		—			4,414			12,961		4,414
Warrants and rights	3,303		—		—				—		—			254			3,557		252
Lehman claim	270		—		—				—		—			13			283		13
Contingent consideration liability	7,197		—		—				—		—			4			7,201		4
Consolidated Funds
Preferred stock	41,000		—		(7,000		)	(a)	467		—			2,424			36,891		2,424
Warrants and rights	—		—		—				—		—			3			3		3

	Three Months Ended September 30, 2015
	Balance at June 30, 2015		Transfers in		Transfers out				Purchases/(covers)		(Sales)/shorts			Realized and Unrealized gains/losses			Balance at September 30, 2015		Change in unrealized gains/losses relating to instruments still held (1)
	(dollars in thousands)
Operating Entities
Preferred stock	$	23,462	$	—	$	(9,000	)	(a) (b)	$	3,500	$	(6,665	)	$	4,474		$	15,771	$	1,200
Common stocks	404		—		—				104		(89		)	(102		)	317		(87		)
Convertible bonds	879		—		—				250		—			—			1,129		—
Options, asset	58,576		—		—				—		—			(36,985		)	21,591		(36,985		)
Options, liability	58,576		—		—				—		—			(36,985		)	21,591		(36,985		)
Warrants and rights	2,316		—		—				—		—			678			2,994		878
Lehman claim	347		—		—				—		—			(12		)	335		(12		)
Contingent consideration liability	2,358		—		—				3,100		—			—			5,458		—
Consolidated Funds
Preferred Stock	—		—		7,000			(b)	12,000		—			—			19,000		—
Lehman claim	744		—		—				—		(739		)	(5		)	—		—

32

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

	Nine Months Ended September 30, 2016
	Balance at December 31, 2015		Transfers in		Transfers out				Purchases/(covers)		(Sales)/shorts			Realized and Unrealized gains/losses			Balance at September 30, 2016		Change in unrealized gains/losses relating to instruments still held (1)
	(dollars in thousands)
Operating Entities
Preferred stock	$	12,872	$	—	$	(1,000	)	(a)	$	450	$	(218	)	$	860		$	12,964	$	452
Common stocks	3,278		—		—				5,710		(135		)	2,748			11,601		2,750
Convertible bonds	819		—		—				—		(569		)	—			250		—
Corporate bond	—		—		—				279		(179		)	120			220		85
Options, asset	18,194		—		—				—		—			(5,233		)	12,961		(5,233		)
Options, liability	18,194		—		—				—		—			(5,233		)	12,961		(5,233		)
Warrants and Rights	2,572		—		—				1,914		(817		)	(112		)	3,557		(87		)
Lehman claim	299		—		—				—		—			(16		)	283		(16		)
Contingent consideration liability	6,158		—		—				2,397		(3,493		)	2,139			7,201		2,139
Consolidated Funds
Preferred stock	32,000				(11,000		)	(a)	13,467		—			2,424			36,891		2,424
Warrants and rights	—		—		—				—		—			3			3		3

	Nine Months Ended September 30, 2015
	Balance at December 31, 2014		Transfers in		Transfers out				Purchases/(covers)		(Sales)/shorts			Realized and Unrealized gains/losses			Balance at September 30, 2015		Change in unrealized gains/losses relating to instruments still held (1)
	(dollars in thousands)
Operating Entities
Preferred stock	$	12,517	$	—	$	(15,823	)	(a) (b)	$	21,750	$	(6,665	)	$	3,992		$	15,771	$	717
Common stocks	412		—		—				104		(120		)	(79		)	317		(74		)
Convertible bonds	900		—		—				250		—			(21		)	1,129		(21		)
Options, asset	36,807		—		—				—		—			(15,216		)	21,591		(15,216		)
Options, liability	36,807		—		—				—		—			(15,216		)	21,591		(15,216		)
Warrants and Rights, asset	1,322		—		—				26		(71		)	1,717			2,994		1,757
Lehman claim	380		—		—				—		—			(45		)	335		(45		)
Contingent consideration liability	4,083		—		—				3,100		(1,725		)	—			5,458		—
Consolidated Funds
Preferred Stock	—				7,000			(b)	12,000		—			—			19,000		—
Lehman claim	493		—		—				—		(739		)	246			—		250

(1) Unrealized gains/losses are reported in other income (loss) in the accompanying condensed consolidated

statements of operations.

(a) The investment was converted to equity.

(b) The company transferred investments to a consolidated fund.

All realized and unrealized gains (losses) in the table above are reflected in other income (loss) in the accompanying condensed consolidated statements of operations.

Certain assets and liabilities are measured at fair value on a nonrecurring basis and therefore are not included in the tables above.

The Company recognizes all transfers and the related unrealized gain (loss) at the beginning of the reporting period.

Transfers between level 1 and 2 generally relate to whether the principal market for the security becomes active or inactive. Transfers between level 2 and 3 generally relate to whether significant relevant observable inputs are available for the fair value measurements or due to change in liquidity restrictions for the investments.

During the three and nine months endedSeptember 30, 2016 and 2015, there were no transfers between level 1 and level 2 assets and liabilities.

33

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

The following table includes quantitative information as of September 30, 2016 and December 31, 2015 for financial instruments classified within level 3. The table below quantifies information about the significant unobservable inputs used in the fair value measurement of the Company's level 3 financial instruments.

	Quantitative Information about Level 3 Fair Value Measurements
	Fair Value at September 30, 2016		Valuation techniques	Unobservable Inputs	Range
Level 3 Assets	(dollars in thousands)
Common and preferred stocks	$	8,803	Market/transaction price and option pricing method Illiquidity discount, discounted cash flow	Volatility Market multiples Discount Discount rate	35% 4x to 9.5x 90% 9.5%
Corporate bonds	188		Discounted cash flows illiquidity discount	Discount rate Discount	20% 10%
Warrants and rights, net	3,649		Model based	Volatility	18% to 85% (weighted average 75%)
Options	12,961		Option pricing models	Volatility	40%
Other level 3 assets (a)	53,129
Total level 3 assets	78,730
Level 3 Liabilities
Options	12,961		Option pricing models	Volatility	40%
Contingent consideration	7,201		Discounted cash flows	Projected cash flow and discount rate	0% - 31% (weighted average 21%)
Total level 3 liabilities	$	20,162

	Quantitative Information about Level 3 Fair Value Measurements
	Fair Value at December 31, 2015		Valuation techniques	Unobservable Inputs	Range
Level 3 Assets	(dollars in thousands)
Common and preferred stocks	$	2,569	Market multiples and option pricing method	Volatility Market multiples	34% 1x to 4.75x
Convertible bonds	819		Recovery analysis	Recovery rate	50%
Warrants and rights, net	2,572		Model based	Volatility	18% to 61% (weighted average 43%)
Options	18,194		Option pricing models	Volatility Credit spreads	38%
Other level 3 assets (a)	45,880
Total level 3 assets	70,034
Level 3 Liabilities
Options	18,194		Option pricing models	Volatility Credit spreads	38%
Contingent consideration	6,158		Discounted cash flows	Projected cash flow and discount rate	6.6% - 24.5% (weighted average 16.4%)
Total level 3 liabilities	$	24,352

(a) The quantitative disclosures exclude financial instruments for which the determination of fair value is based on prices from prior transactions.

The Company has established valuation policies and procedures and an internal control infrastructure over its fair value measurement of financial instruments which includes ongoing oversight by the valuation committee as well as periodic audits performed by the Company's internal audit group. The valuation committee is comprised of senior management, including non-investment professionals, who are responsible for overseeing and monitoring the pricing of the Company's investments, including the review of the results of the independent price verification process, approval of new trading asset classes and use of applicable pricing models and approaches.

34

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

The US GAAP fair value leveling hierarchy is designated and monitored on an ongoing basis. In determining the designation, the Company takes into consideration a number of factors including the observability of inputs, liquidity of the investment and the significance of a particular input to the fair value measurement. Designations, models, pricing vendors, third party valuation providers and inputs used to derive fair market value are subject to review by the valuation committee and the internal audit group. The Company reviews its valuation policy guidelines on an ongoing basis and may adjust them in light of, improved valuation metrics and models, the availability of reliable inputs and information, and prevailing market conditions. The Company reviews a daily profit and loss report, as well as other periodic reports, and analyzes material changes from period-to-period in the valuation of its investments as part of its control procedures. The Company also performs back testing on a regular basis by comparing prices observed in executed transactions to previous valuations.

The fair market value for level 3 securities may be highly sensitive to the use of industry standard models, unobservable inputs and subjective assumptions. The degree of fair market value sensitivity is also contingent upon the subjective weight given to specific inputs and valuation metrics. The Company holds various equity and debt instruments where different weight may be applied to industry standard models representing standard valuation metrics such as: discounted cash flows, market multiples, comparative transactions, capital rates, recovery rates and timing, and bid levels. Generally, changes in the weights ascribed to the various valuation metrics and the significant unobservable inputs in isolation may result in significantly lower or higher fair value measurements. Volatility levels for warrants and options are not readily observable and subject to interpretation. Changes in capital rates, discount rates and replacement costs could significantly increase or decrease the valuation of the real estate investments. The interrelationship between unobservable inputs may vary significantly amongst level 3 securities as they are generally highly idiosyncratic. Significant increases (decreases) in any of those inputs in isolation can result in a significantly lower (higher) fair value measurement.

Other financial assets and liabilities

The following table presents the carrying values and fair values, at September 30, 2016 and December 31, 2015, of financial assets and liabilities and information on their classification within the fair value hierarchy which are not measured at fair value on a recurring basis. For additional information regarding the financial instruments within the scope of this disclosure, and the methods and significant assumptions used to estimate their fair value see Note 3.

	September 30, 2016						December 31, 2015						Fair Value Hierarchy
	Carrying Amount			Fair Value			Carrying Amount			Fair Value
				(dollars in thousands)
Financial Assets
Operating companies
Cash and cash equivalents	$	76,925		$	76,925		$	158,485		$	158,485		Level 1
Cash collateral pledged	13,783			13,783			10,085			10,085			Level 2
Consolidated funds
Cash and cash equivalents	10,370			10,370			13,934			13,934			Level 1
Financial Liabilities
Convertible debt	128,065		(a)	145,676		(b)	122,401		(a)	144,946		(b)	Level 2
Notes payable and other debt	78,357			84,257			68,565			71,945			Level 2

(a) The carrying amount of the convertible debt includes an unamortized discount of $19.6 million and $24.7 million as of September 30, 2016 and December 31, 2015.

(b) The convertible debt include the conversion option and is based on the last broker quote available.

7. Receivables from and Payable to Brokers

Receivables from and payable to brokers includes cash held at the clearing brokers, amounts receivable or payable for unsettled transactions, monies borrowed and proceeds from short sales (including commissions and fees related to securities transactions) equal to the fair value of securities sold, not yet purchased, which are restricted until the Company purchases the securities sold short. Pursuant to the master netting agreements the Company entered into with its brokers, these balances are presented net (assets less liabilities) across balances with the same broker. As of September 30, 2016 and December 31, 2015, receivable from brokers was $77.6 million and $117.8 million, respectively. Payable to brokers was $127.2 million and $131.8 million as of September 30, 2016 and December 31, 2015, respectively. The Company's receivables from and payable to brokers balances are held at multiple financial institutions.

35

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

8. Goodwill

In accordance with US GAAP, the Company tests goodwill for impairment on an annual basis or at an interim period if events or changed circumstances would more likely than not reduce the fair value of a reporting unit below its carrying amount. Under US GAAP, the Company first assesses the qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amounts as a basis for determining if it is necessary to perform the two-step approach. Periodically estimating the fair value of a reporting unit requires significant judgment and often involves the use of significant estimates and assumptions. These estimates and assumptions could have a significant effect on whether or not an impairment charge is recorded and the magnitude of such a charge.

In connection with the CRT transaction (See Note 2), in May 2016, the Company recognized goodwill of $3.5 million and intangible assets (including customer relationships, trade name, intellectual property and non-compete arrangements) with an estimated fair value of $5.1 million which are included within intangible assets, net in the condensed consolidation statements of financial condition with the expected useful lives ranging from 1 to 9 years with a weighted average useful life of 8.1 years. Amortization expense related to intangibles from the CRT acquisition for the three and nine months endedSeptember 30, 2016 is $0.2 million and $0.4 million respectively. Goodwill, which primarily relates to expected synergies from combining operations, is fully deductible for tax purposes and has been assigned to the broker-dealer segment of the Company.

On September 23, 2016, the Company and the portfolio managers of RASL completed the sale of their respective ownership interests in RASL, an investment advisor. In contemplation with the sale transaction, the Company allocated $1.2 million of goodwill to the RASL disposal group (See Note 2).

The Company performed an interim goodwill impairment analysis at the time of the sale transaction and no impairment charges for goodwill were recognized during the three and nine months endedSeptember 30, 2016 and 2015, respectively.

9. Redeemable Non-Controlling Interests in Consolidated Subsidiaries and Funds

Redeemable non-controlling interests in consolidated subsidiaries and funds and the related net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds are comprised as follows:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Redeemable non-controlling interests in consolidated subsidiaries and funds
Operating companies	$	6,791	$	10,906
Consolidated funds	325,092		176,005
	$	331,883	$	186,911

	Three Months Ended September 30,					Nine Months Ended September 30,
	2016		2015			2016			2015
	(dollars in thousands)					(dollars in thousands)
Income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds
Operating companies	$	1,433	$	4,577		$	2,880		$	8,669
Consolidated funds	17,045		(233		)	(5,404		)	2,311
	$	18,478	$	4,344		$	(2,524	)	$	10,980

10. Share-Based and Deferred Compensation and Employee Ownership Plans

The Company issues share based compensation under the 2006 Equity and Incentive Plan, the 2007 Equity and Incentive Plan (both established prior to the November 2009 transaction between Ramius and Cowen) and the Cowen Group, Inc. 2010 Equity and Incentive Plan (collectively, the “Equity Plans”). The Equity Plans permit the grant of options, restricted shares, restricted stock units, stock appreciation rights ("SAR's") and other equity based awards to the Company's employees and directors. Stock options granted generally vest over two-to-five-year periods and expire seven years from the date of grant. Restricted shares and restricted share units issued may be immediately vested or may generally vest over a two-to-five-year period. SAR's vest and expire after five years from grant date. Awards are subject to the risk of forfeiture. As of September 30, 2016, there were approximately 1.8 million shares available for future issuance under the Equity Plans.

Under the 2010 Equity Plan, the Company awarded $25.9 million of deferred cash awards to its employees during the nine months endedSeptember 30, 2016. These awards vest over a four year period and accrue interest between 0.70% to 0.75%

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Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

per year. As of September 30, 2016, the Company had unrecognized compensation expense related to deferred cash awards of $37.3 million.

The Company measures compensation cost for share based awards according to the equity method. In accordance with the expense recognition provisions of those standards, the Company amortizes unearned compensation associated with share based awards on a straight-line basis over the vesting period of the option or award. In relation to awards under the Equity Plans, the Company recognized compensation expense of $6.2 million and $5.3 million for the three months ended September 30, 2016 and 2015 and $19.3 million and $16.2 million for the nine months endedSeptember 30, 2016 and 2015, respectively. The income tax effect recognized for the Equity Plans was a benefit of $2.5 million and $2.1 million for the three months ended September 30, 2016 and 2015 and $8.6 million and $2.8 million for the nine months endedSeptember 30, 2016 and 2015, respectively.

Stock Options and Stock Appreciation Rights

The Company values options and SAR's on grant date using the Black-Scholes valuation model which requires the Company to make assumptions regarding the expected term, volatility, risk-free rate and dividend yield:

Expected term.    Expected term represents the period of time that awards granted are expected to be outstanding. The Company elected to use the "simplified" calculation method, as applicable to companies that lack extensive historical data. The mid-point between the vesting date and the contractual expiration date is used as the expected term under this method.

Expected volatility.    The Company bases its expected volatility on its own stock price history.

Risk free rate.    The risk-free rate for periods within the expected term of the award is based on the interest rate of a traded zero-coupon U.S. Treasury bond with a term equal to the awards' expected term on the date of grant.

Dividend yield.    The Company has not paid and does not expect to pay dividends in the foreseeable future. Accordingly, the assumed dividend yield is zero.

The following table summarizes the Company's stock option activity for the nine months endedSeptember 30, 2016:

	Shares Subject to Option	Weighted Average Exercise Price/Share		Weighted Average Remaining Term	Aggregate Intrinsic Value(1)
				(in years)	(dollars in thousands)
Balance outstanding at December 31, 2015	16,667	$	4.89	1.10	$	—
Options granted	—	—		—	—
Options exercised	—	—		—	—
Options expired	—	—		—	—
Balance outstanding at September 30, 2016	16,667	$	4.89	0.35	$	—
Options exercisable at September 30, 2016	16,667	$	4.89	0.35	$	—

(1) Based on the Company's closing stock price of $3.63 on September 30, 2016 and $3.83 on December 31, 2015.

As of September 30, 2016, the Company's stock options were fully expensed.

The following table summarizes the Company's SAR's for the nine months endedSeptember 30, 2016:

	Shares Subject to Option	Weighted Average Exercise Price/Share		Weighted Average Remaining Term	Aggregate Intrinsic Value(1)
				(in years)	(dollars in thousands)
Balance outstanding at December 31, 2015	400,000	$	2.90	2.21	$	558
SAR's granted	—	—		—	—
SAR's acquired	—	—		—	—
SAR's expired	—	—		—	—
Balance outstanding at September 30, 2016	400,000	$	2.90	1.46	$	430
SAR's exercisable at September 30, 2016	—	$	—	—	$	—

(1) Based on the Company's closing stock price of $3.63 on September 30, 2016 and $3.83 on December 31, 2015.

As of September 30, 2016 and December 31, 2015, the unrecognized compensation expense related to the Company's grant of SAR's was $0.1 million and $0.1 million, respectively.

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Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

Restricted Shares and Restricted Stock Units Granted to Employees

Restricted shares and restricted stock units are referred to collectively as restricted stock. The following table summarizes the Company's restricted share and restricted stock unit activity for the nine months endedSeptember 30, 2016:

	Nonvested Restricted Shares and Restricted Stock Units		Weighted-Average Grant Date Fair Value
Balance outstanding at December 31, 2015	21,480,364		$	4.17
Granted	8,087,610		3.48
Vested	(5,912,240	)	3.74
Canceled	—		—
Forfeited	(1,291,693	)	3.72
Balance outstanding at September 30, 2016 (1)	22,364,041		$	4.06

(1) Performance linked restricted stock units of 1,925,750 were awarded to employees of the Company in December 2013 and January 2014. An additional 2,800,000 performance linked restricted stock units were awarded in March 2016. Of the awards granted, 387,500 have been forfeited through September 30, 2016. The remaining awards, included in the outstanding balance as of September 30, 2016, will vest between March 2019 and December 2020 and will be earned only to the extent that the Company attains specified market goals relating to its volume-weighted average share price and total shareholder return in relation to certain benchmark indices and performance goals relating to aggregate net income and average return on shareholder equity. The actual number of RSUs ultimately earned could vary from zero, if performance goals are not met, to as much as 150% of the targeted award. Each RSU is equal to the one share of the Company’s Class A common stock. Compensation expense is recognized to the extent that it is probable that the Company will attain the performance goals.

The fair value of restricted stock (excluding performance linked units which are valued using the Monte Carlo valuation model) is determined based on the number of shares granted and the quoted price of the Company's common stock on the date of grant.

As of September 30, 2016, there was $65.3 million of unrecognized compensation expense related to the Company's grant of nonvested restricted shares and restricted stock units to employees. Unrecognized compensation expense related to nonvested restricted shares and restricted stock units granted to employees is expected to be recognized over a weighted-average period of 2.69 years.

Restricted Shares and Restricted Stock Units Granted to Non-employee Board Members

There were 224,398 restricted stock units awarded during the nine months endedSeptember 30, 2016. As of September 30, 2016 there were 648,704 restricted stock units outstanding.

11. Income Taxes

The taxable results of the Company’s U.S. operations are included in the consolidated income tax returns of Cowen Group, Inc. as well as stand-alone state and local tax returns. The Company has subsidiaries that are resident in foreign countries where tax filings have to be submitted on a stand‑alone basis. These subsidiaries are subject to tax in their respective countries and the Company is responsible for and, thus, reports all taxes incurred by these subsidiaries. The countries where the Company owns subsidiaries that file tax returns are United Kingdom, Luxembourg, Gibraltar, and Hong Kong.

The Company calculates its U.S. tax provision using the estimated annual effective tax rate methodology. The tax expense or benefit caused by an unusual or infrequent item is recorded in the quarter in which it occurs. The Company uses the discrete methodology to calculate its income tax provision for its foreign subsidiaries. Based on these methodologies, the Company’s effective income tax rate was 24.77% and 17.81% for the nine months endedSeptember 30, 2016 and 2015, respectively. During the nine months endedSeptember 30, 2016, the unusual or infrequent items whose tax impact were recorded discretely related primarily to Federal, state taxes and the tax provisions of the Company’s foreign subsidiaries.

For the nine months endedSeptember 30, 2016 and 2015, the effective tax rate differs from the statutory rate of 35% primarily due to disposal of investment, state and foreign taxes, as well as other nondeductible expenses.

The Company records deferred tax assets and liabilities for the future tax benefit or expense that will result from differences between the carrying value of its assets for income tax purposes and for financial reporting purposes, as well as for

38

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

operating or capital loss and tax credit carryovers. A valuation allowance is recorded to bring the net deferred tax assets to a level that, in management's view, is more likely than not to be realized in the foreseeable future. This level will be estimated based on a number of factors, especially the amount of net deferred tax assets of the Company that are actually expected to be realized, for tax purposes, in the foreseeable future. As of September 30, 2016, the Company recorded a valuation allowance against deferred tax assets related to its foreign net operating losses.

The Company is subject to examination by the United States Internal Revenue Service, the United Kingdom Inland Revenue Service, the Luxembourg Tax Office as well as state, local and foreign tax authorities in jurisdictions where the Company has significant business operations, such as New York. Currently, the Company is under audit by New York State for the 2010 to 2012 tax years. Management is not expecting a material tax liability from this audit.

The Company intends to permanently reinvest the capital and accumulated earnings of its foreign subsidiaries in the respective subsidiary, but remits the current earnings of its foreign subsidiaries to the United States to the extent permissible under local regulatory rules. The undistributed earnings of the Company’s foreign subsidiaries totaled$1.1 million and $1.0 million as of September 30, 2016 and December 31, 2015, respectively, and the tax liability that would arise if these earnings were remitted to the United States would be approximately$0.2 million and $0.1 million, respectively.

12. Commitments and Contingencies

Lease Obligations

The Company has entered into leases for office space and equipment. These leases contain rent escalation clauses. The Company records rent expense on a straight-line basis over the lease term, including any rent holiday periods. Rent expense was $4.9 million and $4.6 million for the three months ended September 30, 2016 and 2015 and $15.4 million and $13.3 million for the nine months endedSeptember 30, 2016 and 2015, respectively.

As of September 30, 2016, future minimum annual lease and service payments for the Company were as follows:

	Equipment Leases (a)		Service Payments		Facility Leases (b)
	(dollars in thousands)
2016	$	606	$	4,703	$	4,690
2017	2,404		13,752		16,663
2018	2,324		7,395		16,578
2019	897		2,136		14,981
2020	2		142		14,814
Thereafter	—		21		32,250
	$	6,233	$	28,149	$	99,976

(a) Equipment Leases include the Company's commitments relating to operating and capital leases. See Note 13 for further information on the capital lease minimum payments which are included in the table.

(b) The Company has entered into various agreements to sublease certain of its premises. The Company recorded sublease income related to these leases of $0.4 million and $0.5 million for the three months ended September 30, 2016 and 2015 and $1.7 million and $1.4 million and for the nine months endedSeptember 30, 2016 and 2015, respectively.

Clawback Obligations

For financial reporting purposes, the general partners of a real estate fund have recorded a liability for potential clawback obligations to the limited partners, due to changes in the unrealized value of the fund's remaining investments and where the fund's general partner has previously received carried interest distributions.The clawback liability, however, is not realized until the end of the fund's life.The life of the real estate funds with a potential clawback obligation is currently in a winding-up phase whereby the remaining assets of the fund are being liquidated as promptly as possible so as to maximize value, however a final date for liquidation has not been set.The fund is currently winding-down and as of both September 30, 2016 and December 31, 2015, and the clawback obligation was $6.2 million.

The Company serves as the general partner/managing member and/or investment manager to various affiliated and sponsored funds. As such, the Company is contingently liable for obligations for those entities. These amounts are not included above as the Company believes that the assets in these funds are sufficient to discharge any liabilities.

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Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

Unfunded Commitments

As of September 30, 2016, the Company had unfunded commitments of$7.4 millionpertaining to capital commitments infourreal estate investments held by the Company, all of which pertain to related party investments. Such commitments can be called at any time, subject to advance notice. The Company, as a limited partner of the HealthCare Royalty Partners funds and also as a member of HealthCare Royalty Partners General Partners, has committed to invest $45.8 millionin the Healthcare Royalty Partners funds which are managed by Healthcare Royalty Management. This commitment is expected to be called over atwo tofive year period. The Company will make its pro-rata investment in the HealthCare Royalty Partners funds along with the other limited partners. ThroughSeptember 30, 2016, the Company has funded$37.9 milliontowards these commitments.As of September 30, 2016, the Company had an unfunded commitment to Eclipse Ventures Fund I, L.P. (formerly Formation8 Partners Hardware Fund I, L.P.) of$0.9 million. The remaining capital commitment is expected to be called over aoneyear period. As of September 30, 2016, the Company had an unfunded commitment to Lagunita Biosciences, LLC of$3.5 million. The remaining capital commitment is expected to be called over a three-year period.As of September 30, 2016, the Company had an unfunded commitment to Eclipse Fund II, L.P. of$1.0 million. The remaining capital commitment is expected to be called over aneight year period. As of September 30, 2016, the Company had an unfunded commitment to Eclipse Continuity Fund I, L.P. of $0.9 million. The remaining capital commitment is expected to be called over aneight year period.

Litigation

In the ordinary course of business, the Company and its affiliates and subsidiaries and current and former officers, directors and employees (the "Company and Related Parties") are named as defendants in, or as parties to, various legal actions and proceedings. Certain of these actions and proceedings assert claims or seek relief in connection with alleged violations of securities, banking, anti-fraud, anti-money laundering, employment and other statutory and common laws. Certain of these actual or threatened legal actions and proceedings include claims for substantial or indeterminate compensatory or punitive damages, or for injunctive relief.

In the ordinary course of business, the Company and Related Parties are also subject to governmental and regulatory examinations, information gathering requests (both formal and informal), certain of which may result in adverse judgments, settlements, fines, penalties, injunctions or other relief. Certain affiliates and subsidiaries of the Company are investment banks, registered broker-dealers, futures commission merchants, investment advisers or other regulated entities and, in those capacities, are subject to regulation by various U.S., state and foreign securities, commodity futures and other regulators. In connection with formal and informal inquiries by these regulators, the Company and such affiliates and subsidiaries receive requests, and orders seeking documents and other information in connection with various aspects of their regulated activities.

Due to the global scope of the Company's operations, and its presence in countries around the world, the Company and Related Parties may be subject to litigation, and governmental and regulatory examinations, information gathering requests, investigations and proceedings (both formal and informal), in multiple jurisdictions with legal and regulatory regimes that may differ substantially, and present substantially different risks, from those the Company and Related Parties are subject to in the United States.

The Company seeks to resolve all litigation and regulatory matters in the manner management believes is in the best interests of the Company and its shareholders, and contests liability, allegations of wrongdoing and, where applicable, the amount of damages or scope of any penalties or other relief sought as appropriate in each pending matter.

In accordance with US GAAP, the Company establishes reserves for contingencies when the Company believes that it is probable that a loss has been incurred and the amount of loss can be reasonably estimated. The Company discloses a contingency if there is at least a reasonable possibility that a loss may have been incurred and there is no reserve for the loss because the conditions above are not met. The Company's disclosure includes an estimate of the reasonably possible loss or range of loss for those matters, for which an estimate can be made. Neither a reserve nor disclosure is required for losses that are deemed remote.     

The Company appropriately reserves for certain matters where, in the opinion of management, the likelihood of liability is probable and the extent of such liability is reasonably estimable. Such amounts are included within accounts payable, accrued expenses and other liabilities in theaccompanying condensed consolidated statements of financial condition. Estimates, by their nature, are based on judgment and currently available information and involve a variety of factors, including, but not limited to, the type and nature of the litigation, claim or proceeding, the progress of the matter, the advice of legal counsel, the Company's defenses and its experience in similar cases or proceedings as well as its assessment of matters, including settlements, involving other defendants in similar or related cases or proceedings. The Company may increase or decrease its legal reserves in the future, on a matter-by-matter basis, to account for developments in such matters. The Company accrues legal fees as incurred.

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Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

On May 28, 2014, Energy Intelligence Group, Inc. and Energy Intelligence Group UK (collectively, "EIG") filed a lawsuit against Cowen and Company, LLC in the United States Court for the Southern District of New York (Energy Intelligence Group, Inc. and Energy Intelligence Group UK v. Cowen and Company, LLC, No. 14-CV-3789). The complaint alleges copyright infringement based on alleged impermissible distribution of EIG's publication, Oil Daily, by Cowen and Company and Dahlman Rose & Company, LLC, as Cowen's alleged predecessor-in-interest. EIG is seeking statutory damages based on alleged willful infringement of their copyrights. On November 12, 2014, the Company filed an answer and affirmative defenses to the EIG complaint.  On September 25, 2015, the Company filed its motion for partial summary judgment to dismiss certain of EIG’s claims relating to Dahlman Rose’s alleged copyright infringement.  During the second quarter the Company also filed a motion to disqualify EIG’s copyright counsel based on a conflict of interest.  Both of the Company’s motions were heard in the second quarter of 2016.  On July 15, 2016 the District Court ruled in favor of the Company on both of its motions.  The Company and EIG entered into a settlement agreement on September 30, 2016, pursuant to which EIG agreed to dismiss its lawsuit with prejudice. The settlement amount paid by the Company and the current period impact of the settlement was not material to the Company’s financial position or the results of operations for the three and nine months ended September 30, 2016. The dismissal of the lawsuit was approved by the District Court on October 4, 2016.

13. Convertible Debt and Notes Payable

As of September 30, 2016 and December 31, 2015, the Company's outstanding debt was as follows:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Convertible debt	$	128,065	$	122,401
Note payable	61,145		60,831
Other notes payable	15,166		—
Revolver	—		5,000
Capital lease obligations	2,046		2,734
	$	206,422	$	190,966

Convertible Debt

On March 10, 2014, the Company issued$149.5 million of 3.0%cash convertible senior notes ("Convertible Notes"). The Convertible Notes are due on March 15, 2019 unless earlier repurchased by the Company or converted by the holder into cash in accordance with their terms prior to such date. The interest on the Convertible Notes is payable semi-annually on March 15 and September 15 of each year. The Convertible Notes are senior unsecured obligations and rank senior in right of payments to other obligations. The Convertible Notes may be converted into cash, upon the occurrence of certain events, whereby a holder will receive, per$1,000principal amount of notes being converted, an amount equal to the sum of principal amount outstanding and the conversion amount based on the current conversion price (the "Conversion Option"). The Convertible Notes were issued with an initial conversion price of $5.33per share.

The Company recorded interest expense of$1.1 million and $1.1 million for the three months ended September 30, 2016and2015 and $3.4 million and $3.4 millionfor thenine months endedSeptember 30, 2016and2015, respectively.The initial unamortized discount on the Convertible Notes was$35.7 millionand is shown net in convertible debt in the accompanying condensed consolidated statements of financial condition.Amortization on the discount, included within interest expense in the accompanying condensed consolidated statements of operations is$1.7 million and $1.6 million for the three months ended September 30, 2016and2015 and $5.1 millionand$4.7 million for the nine months endedSeptember 30, 2016 and 2015, respectively, based on an effective interest rate of 8.89%. The Company capitalized the debt issuance costs in the amount of$3.7 million, which is a direct deduction from the carrying value of the debt and will be amortized over the life of the Convertible Notes.

Of the net proceeds from the sale of the Convertible Notes, approximately$20.5 millionwas applied to pay the net cost of a cash convertible note economic hedge and warrant transaction which increases the effective conversion price to$7.18 (see Note 5), and approximately$0.3 millionwas applied to repurchase shares of Cowen Class A common stock. The remainder of the net proceeds is being used for general corporate purposes.

Note Payable

On October 10, 2014 the Company completed its public offering of$63.3 millionaggregate principal amount of8.25%senior notes due on October 15, 2021 ("2021 Notes").Interest on the 2021 Notes is payable quarterly in arrears on January 15, April 15, July 15 and October 15, commencing on January 15, 2015.The Company recorded interest expense of$1.3 million and $1.3 million for the three months ended September 30, 2016and2015 and $3.9 million and $3.9 millionfor thenine

41

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

months endedSeptember 30, 2016 and 2015, respectively. The Company capitalized debt issuance costs of approximately$2.9 millionwhich is a direct deduction from the carrying value of the debt and will be amortized over the life of the 2021 Notes.

Other Notes Payable

During January 2016, the Company borrowed$2.0 millionto fund insurance premium payments. This note has an effective interest rate of 1.38%and is due on December 31, 2016, with monthly payment requirements of$0.2 million. As of September 30, 2016, the outstanding balance on this note payable was$0.4 million. Interest expense for thethree and nine months endedSeptember 30, 2016was insignificant.

During the second quarter of 2016, the Company entered into financing for two of its aircraft and acquired additional debt when four other aircraft were acquired (See Note 2). The aircraft financing, net of debt costs, is recorded in notes payable and short-term borrowings in the accompanying condensed consolidated statements of financial condition. The debt maturities ranged from February 2017 to May 2021 and interest rates ranged from4.80%to7.25%. As of September 30, 2016, the remaining balance on the aircraft financing agreements was$14.8 million. Interest expense was$0.2 million and $0.5 million for the three and nine months endedSeptember 30, 2016, respectively.

Revolver

On July 31, 2015, the Company entered into a$25.0 million364day revolving unsecured credit facility with multiple financial institutions primarily for working capital management. On July 29, 2016, the Company amended its credit facility to, among other things, extend the existing stated maturity thereof from August 3, 2016 to September 29, 2016, reduce the aggregate revolving commitments thereunder from$25 million to $15 millionand make future draws on the revolver during the extension period subject to the sole discretion of the lenders thereunder. In connection with the amendment, the Company repaid all outstanding amounts under the credit facility. The revolving unsecured credit facility terminated in accordance with its terms on September 29, 2016. Interest accrued on borrowed funds at LIBOR plus3.0%and interest accrued on the undrawn facility amount at LIBOR plus0.38%. Interest expense for the three and nine months endedSeptember 30, 2016 was $0.1 million and $0.4 million and interest expense for the three and nine months endedSeptember 30, 2015 was $0.2 million and $0.2 million, respectively.

Capital Lease Obligations

The Company entered into several capital leases for computer equipment during the fourth quarter of 2010 and one in January 2014. These leases amounted to$7.6 millionand are recorded in fixed assets and as capital lease obligations, which are included in short-term borrowings and other debt in the accompanying condensed consolidated statements of financial condition, and have lease terms that range from48 to 60months and interest rates that range from 0.60% to 6.03%. As ofSeptember 30, 2016, the remaining balance on these capital leases was$2.0 million. Interest expense was$0.1 million and $0.1 million for the three months ended September 30, 2016and2015 and $0.1 million and $0.1 million for the nine months endedSeptember 30, 2016 and 2015, respectively.

Annual scheduled maturities of debt and minimum payments for all debt outstanding as of September 30, 2016, is as follows:

	Convertible Debt			Note Payable			Other Note Payable			Capital Lease Obligation
	(dollars in thousands)
2016	$	—		$	1,304		$	1,221		$	235
2017	4,485			5,218			4,225			938
2018	4,485			5,218			2,225			938
2019	151,743			5,218			3,702			78
2020	—			5,218			1,805			—
Thereafter	—			68,468			4,723			—
Subtotal	160,713			90,644			17,901			2,189
Less: Amount representing interest (a)	(32,648		)	(29,499		)	(2,735		)	(143		)
Total	$	128,065		$	61,145		$	15,166		$	2,046

(a) Amount necessary to reduce net minimum payments to present value calculated at the Company's implicit rate at inception. This amount also includes the unamortized discount on the convertible debt.

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Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

Letters of Credit

As of September 30, 2016, the Company has nineirrevocable letters of credit, related to leased office space, for which there is cash collateral pledged, which the Company pays a fee on the stated amount of the letter of credit. The Company also has a letter of credit, in the amount of$5.5 million, due March 2017, for which cash is pledged as collateral under a reinsurance agreement.

Location	Amount		Maturity
	(dollars in thousands)
New York	$	355	May 2017
New York	$	70	May 2017
New York	$	695	October 2016
New York	$	3,373	October 2016
New York	$	1,600	November 2016
San Francisco	$	710	January 2017
Connecticut	$	65	January 2017
New York	$	1,000	February 2017
Boston	$	382	March 2017

To the extent any letter of credit is drawn upon, interest will be assessed at the prime commercial lending rate. As of September 30, 2016 and December 31, 2015, there were no amounts due related to these letters of credit.

14. Stockholder's Equity

Preferred Stock and Purchase of Capped Call Option

On May 19, 2015, the Company completed its offering of120,750shares of the Company's5.625%Series A cumulative perpetual convertible preferred stock ("Series A Convertible Preferred Stock") that provided$117.2 millionof proceeds, net of underwriting fees and issuance costs of$3.6 million. Each share of the Series A Convertible Preferred Stock is entitled to dividends at a rate of5.625%per annumwhich will be payable, when and if declared by the board of directors of the Company, quarterly, in arrears, on February 15, May 15, August 15 and November 15 of each year. The Company may, at its option, pay dividends in cash, common stock or a combination thereof. During the nine months endedSeptember 30, 2016 the Company declared and accrued a cash dividend of $5.1 million.

Each share of Series A Convertible Preferred Stock is non-voting and has a liquidity preference over the Company's Class A common stock and ranks senior to all classes or series of the Company's Class A common stock, but junior to all of the Company's existing and future indebtedness with respect to divided rights and rights upon the Company's involuntary liquidation, dissolution or winding down.

Each share of Series A Convertible Preferred Stock is convertible, at the option of the holder, into a number of shares of our Class A common stock equal to the liquidation preference of$1,000divided by the conversion rate. The initial conversion rate is152.2476shares(which equates to$6.57 per share)of the Company's Class A common stock for each share of the Series A Convertible Preferred Stock. At any time on or after May 20, 2020, the Company may elect to convert all outstanding shares of the Series A Convertible Preferred Stock into shares of the Company’s Class A common stock, cash or a combination thereof, at the Company’s election, in each case, based on the then-applicable conversion rate, if the last reported sale price of the Company’s Class A common stock equals or exceeds 150%of the then-current conversion price on at least20trading days (whether or not consecutive) during the period of30consecutive trading days (including on the last trading day of such period) immediately prior to such election. At the time of conversion, the conversion rate may be adjusted based on certain events including but not limited to the issuance of cash dividends or Class A common stock as a dividends to the Company's Class A common shareholders or a share split or combination.

In connection with the issuance and sale of the Series A Convertible Preferred Stock, the Company entered into a privately negotiated capped call option transaction (the “Capped Call Option Transaction”) with Nomura Global Financial Products Inc. (the “option counterparty”) for$15.9 million. The Capped Call Option Transaction is expected generally to reduce the potential dilution to the Company’s Class A common stock (if the Company elects to convert to common shares) and/or offset any cash payments that the Company is required to make upon conversion of any Series A Convertible Preferred Stock. The Capped Call Option Transaction has an initial effective strike price of$6.57 per share, which matches the initial conversion price of the Series A Convertible Preferred Stock, and a cap price of$8.39per share. However, to the extent that the market price of Class A common stock, as measured under the terms of the Capped Call Option Transaction, exceeds the cap

43

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

price thereof, there would nevertheless be dilution and/or such cash payments would not be offset. As the Capped Call Option Transaction is a free standing derivative that is indexed to the Company's own stock price and the Company controls if it is settled in cash or stock it qualifies for equity classification as a reduction to additional paid in capital.

Treasury Stock

Treasury stock of $152.2 million as of September 30, 2016, compared to $137.4 million as of December 31, 2015, resulted from $8.8 million acquired through repurchases of shares to cover employee minimum tax withholding obligations related to stock compensation vesting events under the Company's Equity Plan or other similar transactions and $6.0 million purchased in connection with a share repurchase program.

The following represents the activity relating to the treasury stock held by the Company during the nine months endedSeptember 30, 2016:

	Treasury stock shares	Cost (dollars in thousands)		Average cost per share
Balance outstanding at December 31, 2015	34,515,734	$	137,356	$	3.98
Shares purchased for minimum tax withholding under the Equity Plan or other similar transactions	2,578,819	8,793		3.41
Purchase of treasury stock	1,723,119	6,014		3.49
Balance outstanding at September 30, 2016	38,817,672	$	152,163	$	3.92

15. Accumulated Other Comprehensive Income (Loss)

Accumulated other comprehensive income includes the after tax change in unrealized gains and losses on foreign currency translation adjustments. During the periods presented, the Company did not have material reclassifications out of other comprehensive income.

	Nine Months Ended September 30,
	2016			2015
	(dollars in thousands)
Beginning Balance	$	—		$	17
Foreign currency translation	(3		)	(4		)
Ending Balance	$	(3	)	$	13

16. Earnings Per Share

The Company calculates its basic and diluted earnings per share in accordance with US GAAP. Basic earnings per share is calculated by dividing net income attributable to the Company's common stockholders by the weighted average number of common shares outstanding for the period. As of September 30, 2016, there were 107,314,157 shares outstanding. The Company has included 648,704 fully vested, unissued restricted stock units in its calculation of basic earnings per share.

Diluted earnings per common share are calculated by adjusting the weighted average outstanding shares to assume conversion of all potentially dilutive items. The Company uses the treasury stock method to reflect the potential dilutive effect of the warrants (see Note 5(a)), unexercised stock options, unvested restricted shares, restricted stock units, and SAR's. In calculating the number of dilutive shares outstanding, the shares of common stock underlying unvested restricted shares and restricted stock units are assumed to have been delivered, and options and warrants are assumed to have been exercised, on the grant date. The assumed proceeds from the assumed vesting, delivery and exercising were calculated as the sum of (a) the amount of compensation cost attributed to future services and not yet recognized and (b) the amount of tax benefit that would be credited to additional paid-in capital assuming vesting and delivery of the shares. The tax benefit is the amount resulting from a tax deduction for compensation in excess of compensation expense recognized for financial statement reporting purposes. All outstanding stock options, SAR's, unvested restricted shares and warrants were not included in the computation of diluted net income (loss) per common share for the three and nine months ended September 30, 2016 as their inclusion would have been anti-dilutive. The Company can elect to settle the Series A Convertible Preferred Stock in shares, cash, or a combination of both. The Company's intent is to settle in cash and, based on current and projected liquidity needs, the Company has the ability to do so.

44

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

The computation of earnings per share is as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
	(dollars in thousands, except per share data)
Net income (loss)	$	15,259		$	(6,002	)	$	(19,897	)	$	24,048
Net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	18,478			4,344			(2,524		)	10,980
Net income (loss) attributable to Cowen Group, Inc.	(3,219		)	(10,346		)	(17,373		)	13,068
Preferred stock dividends	1,698			1,603			5,094			2,358
Net income (loss) attributable to Cowen Group, Inc. common stockholders	$	(4,917	)	$	(11,949	)	$	(22,467	)	$	10,710
Shares for basic and diluted calculations:
Weighted average shares used in basic computation	107,974			109,191			107,272			111,050
Stock options	—			—			—			19
Performance based restricted stock	—			—			—			266
Stock appreciation rights	—			—			—			152
Restricted stock	—			—			—			5,762
Weighted average shares used in diluted computation	107,974			109,191			107,272			117,249
Earnings (loss) per share:
Basic	$	(0.05	)	$	(0.11	)	$	(0.21	)	$	0.10
Diluted	$	(0.05	)	$	(0.11	)	$	(0.21	)	$	0.09

17. Segment Reporting

The Company conducts its operations through two segments: the alternative investment segment and the broker‑dealer segment. These activities are conducted primarily in the United States and substantially all of its revenues are generated domestically. The performance measure for these segments is Economic Income (Loss), which management uses to evaluate the financial performance of and make operating decisions for the segments including determining appropriate compensation levels. Expenses not directly associated with specific segments are allocated based on the most relevant measures applicable, including headcount, square footage and other factors.

In general, Economic Income (Loss) is a pre-tax measure that (i) eliminates the impact of consolidation for consolidated funds (ii) excludes goodwill and intangible impairment (iii) excludes certain other acquisition-related adjustments and/or reorganization expenses and (iv) excludes preferred stock dividends. In addition, Economic Income (Loss) revenues include investment income that represents the income the Company has earned in investing its own capital, including realized and unrealized gains and losses, interest and dividends, net of associated investment related expenses. For US GAAP purposes, these items are included in each of their respective line items. Economic Income (Loss) revenues also include management fees, incentive income and investment income earned through the Company's investment as a general partner in certain real estate entities and the Company's investment in the activist business. For US GAAP purposes, all of these items are recorded in other income (loss). In addition, Economic Income (Loss) expenses are reduced by reimbursement from affiliates, which for US GAAP purposes is presented gross as part of revenue.

As further stated below, one major difference between Economic Income (Loss) and US GAAP net income (loss) is that Economic Income (Loss) presents the segments' results of operations without the impact resulting from the full consolidation of any of the Consolidated Funds. Consolidation of these funds results in including in income the pro rata share of the income or loss attributable to other owners of such entities which is reflected in net income (loss) attributable to redeemable non-controlling interest in consolidated subsidiaries in the accompanying condensed consolidated statements of operations. This pro rata share has no effect on the overall financial performance for the alternative investment segment, as ultimately, this income or loss is not income or loss for the alternative investment segment itself. Included in Economic Income (Loss) is the actual pro rata share of the income or loss attributable to the Company as an investor in such entities, which is relevant in management making operating decisions and evaluating financial performance.

The following tables set forth operating results for the Company's alternative investment and broker-dealer segments and related adjustments necessary to reconcile the Company's Economic Income (Loss) measure to arrive at the Company's consolidated US GAAP net income (loss):

45

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

	Three Months Ended September 30, 2016
									Adjustments
	Alternative Investment			Broker-Dealer		Total Economic Income/(Loss)			Funds Consolidation			Other Adjustments				US GAAP
	(dollars in thousands)
Revenues
Investment banking	$	—		$	36,722	$	36,722		$	—		$	—			$	36,722
Brokerage	—			51,524		51,524			—			(1,919		)		49,605
Management fees	15,746			793		16,539			(445		)	(5,822		)	(a)	10,272
Incentive income	11,825			—		11,825			(562		)	(9,979		)	(a)	1,284
Investment Income	14,798			4,932		19,730			—			(19,730		)	(c)	—
Interest and dividends	—			—		—			—			3,906			(c)	3,906
Aircraft lease revenue	—			—		—			—			1,089			(f)	1,089
Reimbursement from affiliates	—			—		—			(76		)	2,216			(e)	2,140
Other revenue	17,145			25		17,170			—			7,942			(c)(f)	25,112
Consolidated Funds revenues	—			—		—			897			—				897
Total revenues	59,514			93,996		153,510			(186		)	(22,297		)		131,027
Expenses
Non interest expense	43,589			92,259		135,848			(429		)	12,759			(b)(c)(d)	148,178
Interest and dividends	3,205			1,079		4,284			—			3,328			(c)	7,612
Consolidated Funds expenses	—			—		—			2,469			—				2,469
Total expenses	46,794			93,338		140,132			2,040			16,087				158,259
Total other income (loss)	—			—		—			19,269			31,981			(c)	51,250
Income taxes expense / (benefit)	—			—		—			—			8,759			(b)	8,759
(Income) loss attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	(2,354		)	—		(2,354		)	(17,043		)	919				(18,478		)
Economic Income (Loss) / Net Income (loss) attributable to Cowen Group, Inc.	$	10,366		$	658	$	11,024		$	—		$	(14,243	)		$	(3,219	)

46

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

	Three Months Ended September 30, 2015
										Adjustments
	Alternative Investment			Broker-Dealer			Total Economic Income/(Loss)			Funds Consolidation			Other Adjustments				US GAAP
	(dollars in thousands)
Revenues
Investment banking	$	—		$	53,012		$	53,012		$	—		$	—			$	53,012
Brokerage	18			41,857			41,875			—			(790		)		41,085
Management fees	17,739			282			18,021			(371		)	(7,131		)	(a)	10,519
Incentive income	(8,629		)	—			(8,629		)	29			8,693			(a)	93
Investment Income	(16,781		)	(5,243		)	(22,024		)	—			22,024			(c)	—
Interest and dividends	—			—			—			—			3,604			(c)	3,604
Reimbursement from affiliates	—			—			—			(85		)	3,440			(e)	3,355
Other revenue	(9		)	573			564			—			748			(c)	1,312
Consolidated Funds revenues	—			—			—			274			—				274
Total revenues	(7,662		)	90,481			82,819			(153		)	30,588				113,254
Expenses
Non interest expense	6,133			84,721			90,854			—			2,112			(b)(c)(d)	92,966
Interest and dividends	2,970			1,287			4,257			—			3,110			(c)	7,367
Consolidated Funds expenses	—			—			—			634			—				634
Total expenses	9,103			86,008			95,111			634			5,222				100,967
Total other income (loss)	—			—			—			554			(23,924		)	(c)	(23,370		)
Income taxes expense / (benefit)	—			—			—			—			(5,081		)	(b)	(5,081		)
(Income) loss attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	(2,231		)	—			(2,231		)	233			(2,346		)		(4,344		)
Economic Income (Loss) / Net Income (loss) attributable to Cowen Group, Inc.	$	(18,996	)	$	4,473		$	(14,523	)	$	—		$	4,177			$	(10,346	)

47

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

	Nine Months Ended September 30, 2016
										Adjustments
	Alternative Investment			Broker-Dealer			Total Economic Income/(Loss)			Funds Consolidation			Other Adjustments				US GAAP
	(dollars in thousands)
Revenues
Investment banking	$	—		$	98,156		$	98,156		$	—		$	—			$	98,156
Brokerage	—			153,417			153,417			—			(5,777		)		147,640
Management fees	47,604			2,334			49,938			(1,239		)	(16,748		)	(a)	31,951
Incentive income	19,174			—			19,174			(569		)	(15,782		)	(a)	2,823
Investment Income	(444		)	(147		)	(591		)	—			591			(c)	—
Interest and dividends	—			—			—			—			11,664			(c)	11,664
Aircraft lease revenue	—			—			—			—			3,071			(f)	3,071
Reimbursement from affiliates	—			—			—			(224		)	8,492			(e)	8,268
Other revenue	19,366			84			19,450			—			21,733			(c)(f)	41,183
Consolidated Funds revenues	—			—			—			4,541			—				4,541
Total revenues	85,700			253,844			339,544			2,509			7,244				349,297
Expenses
Non interest expense	77,917			257,972			335,889			(429		)	28,170			(b)(c)(d)	363,630
Interest and dividends	9,645			3,288			12,933			—			8,933			(c)	21,866
Consolidated Funds expenses	—			—			—			6,428			—				6,428
Total expenses	87,562			261,260			348,822			5,999			37,103				391,924
Total other income (loss)	—			—			—			(1,915		)	18,092			(c)	16,177
Income taxes expense / (benefit)	—			—			—			—			(6,553		)	(b)	(6,553		)
(Income) loss attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	(6,589		)	—			(6,589		)	5,405			3,708				2,524
Economic Income (Loss) / Net Income (loss) attributable to Cowen Group, Inc.	$	(8,451	)	$	(7,416	)	$	(15,867	)	$	—		$	(1,506	)		$	(17,373	)

48

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

	Nine Months Ended September 30, 2015
									Adjustments
	Alternative Investment			Broker-Dealer		Total Economic Income/(Loss)			Funds Consolidation			Other Adjustments				US GAAP
	(dollars in thousands)
Revenues
Investment banking	$	—		$	186,763	$	186,763		$	—		$	—			$	186,763
Brokerage	41			112,292		112,333			—			(837		)		111,496
Management fees	50,885			282		51,167			(937		)	(19,061		)	(a)	31,169
Incentive income	(1,081		)	—		(1,081		)	(278		)	1,724			(a)	365
Investment Income	14,309			4,763		19,072			—			(19,072		)	(c)	—
Interest and dividends	—			—		—			—			9,846			(c)	9,846
Reimbursement from affiliates	—			—		—			(261		)	10,760			(e)	10,499
Other revenue	84			605		689			—			1,995			(c)	2,684
Consolidated Funds revenues	—			—		—			1,134			—				1,134
Total revenues	64,238			304,705		368,943			(342		)	(14,645		)		353,956
Expenses
Non interest expense	57,164			273,939		331,103			—			4,799			(b)(c)(d)	335,902
Interest and dividends	8,880			3,545		12,425			—			6,816			(c)	19,241
Consolidated Funds expenses	—			—		—			1,626			—				1,626
Total expenses	66,044			277,484		343,528			1,626			11,615				356,769
Total other income (loss)	—			—		—			4,278			27,795			(c)	32,073
Income taxes expense / (benefit)	—			—		—			—			5,212			(b)	5,212
(Income) loss attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	(6,128		)	—		(6,128		)	(2,310		)	(2,542		)		(10,980		)
Economic Income (Loss) / Net Income (loss) attributable to Cowen Group, Inc.	$	(7,934	)	$	27,221	$	19,287		$	—		$	(6,219	)		$	13,068

The following is a summary of the adjustments made to US GAAP net income (loss) for the segment to arrive at

Economic Income (Loss):

Funds Consolidation: The impacts of consolidation and the related elimination entries of the Consolidated Funds are not included in Economic Income (Loss). Adjustments to reconcile to US GAAP net income (loss) include elimination of incentive income and management fees earned from the Consolidated Funds and addition of fund expenses excluding management fees paid, fund revenues and investment income (loss).

Other Adjustments:

(a)     Economic Income (Loss) recognizes revenues (i) net of distribution fees paid to agents and (ii) our proportionate share

of management and incentive fees of certain real estate operating entities and the activist business.

(b)    Economic Income (Loss) excludes income taxes and acquisition related adjustments as management does not consider

these items when evaluating the performance of the segment.

(c)     Economic Income (Loss) recognizes Company income from proprietary trading (including interest and dividends) and

underwriting income from the Company's insurance related activities net of expenses.

(d)     Economic Income (Loss) recognizes the Company's proportionate share of expenses for certain real estate and other

operating entities for which the investments are recorded under the equity method of accounting for investments.

(e)    Reimbursement from affiliates is shown as a reduction of Economic Income expenses, but is included as a part of

revenues under US GAAP.

(f)    Aircraft lease revenue is shown net of expenses in other revenue for Economic Income (Loss).

For the three and nine months endedSeptember 30, 2016 and 2015, there was noone fund or other customer which represented more than 10% of the Company's total revenues.

49

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

18. Regulatory Requirements

As registered broker-dealers, Cowen and Company, ATM Execution and Cowen Prime are subject to the SEC's Uniform Net Capital Rule 15c3-1 (the “Rule”), which requires the maintenance of minimum net capital. Under the alternative method permitted by the Rule, Cowen and Company's minimum net capital requirement, as defined, is$1.0 million. Under the alternative method ATM Execution and Cowen Prime are required to maintain minimum net capital, as defined, equal to$250,000. The broker-dealers are not permitted to withdraw equity if certain minimum net capital requirements are not met. As of September 30, 2016, Cowen and Company had total net capital of approximately$78.3 million, which was approximately $77.3 million in excess of its minimum net capital requirement of$1.0 million. As of September 30, 2016, ATM Execution had total net capital of approximately$2.7 million, which was approximately$2.4 millionin excess of its minimum net capital requirement of$250,000. As of September 30, 2016, Cowen Prime had total net capital of approximately$11.7 million, which was approximately $11.4 million in excess of its minimum net capital requirement of $250,000.

Cowen and Company, ATM Execution and Cowen Prime claim exemption from the provisions of Rule 15c3-3 under the Securities Exchange Act of 1934 as their activities are limited to those set forth in the conditions for exemption appearing in paragraph (k)(2)(ii) of the Rule.

Proprietary accounts of broker-dealers (“PAB”) held at the clearing broker are considered allowable assets for net capital purposes, pursuant to agreements between Cowen and Company, ATM Execution and Cowen Prime and the clearing brokers, which require, among other things, that the clearing brokers perform computations for PAB and segregate certain balances on behalf of Cowen and Company, ATM Execution and Cowen Prime, if applicable.

Ramius UK Ltd. ("Ramius UK") and Cowen International Limited ("CIL")are subject to the capital requirements of the Financial Conduct Authority (“FCA”) of the UK. Financial Resources, as defined, must exceed the requirement of the FCA. As of September 30, 2016, Ramius UK's Financial Resources of$0.24 millionexceeded its minimum requirement of$0.06 million by $0.18 million. As of September 30, 2016, CIL's Financial Resources of$3.9 millionexceeded its minimum requirement of$1.9 million by $2.0 million.

Cowen’s Luxembourg reinsurance companies, Vianden RCG Re SCA (“Vianden”) and Hollenfels, are required to maintain a solvency capital ratio as calculated by relevant European Commission directives and local regulatory rules in Luxembourg. Each company’s solvency capital ratio as ofSeptember 30, 2016was in excess of this minimum requirement.

Based on minimum capital and surplus requirements pursuant to the laws of the state of New York that apply to captive insurance companies, RCG Insurance Company, Cowen’s captive insurance company incorporated and licensed in the state of New York, was required to maintain capital and surplus of approximately$0.3 millionas ofSeptember 30, 2016. RCG Insurance Company’s capital and surplus as of September 30, 2016 totaled approximately $22.1 million.

19. Related Party Transactions

The Company and its affiliated entities are the managing member, general partner and/or investment manager to the Company's alternative asset management products and certain managed accounts. Management fees and incentive income are primarily earned from affiliated entities. As of September 30, 2016 and December 31, 2015, $5.9 million and $6.3 million, respectively, included in fees receivable are earned from related parties. The Company may, at its discretion, reimburse certain fees charged to the funds that it manages to avoid duplication of fees when such funds have an underlying investment in another affiliated investment fund. For the three and nine months ended September 30, 2016, the Company reimbursed the funds it manages $0.1 million and $0.1 million, respectively, which were recorded net in management fees and incentive income in the accompanying condensed consolidated statements of operation. These amounts were immaterial for the three and nine months ended September 30, 2015. As of September 30, 2016 and December 31, 2015, related amounts still payable were $0.1 million and $0.1 million, respectively, and were reflected in fees payable in the accompanying condensed consolidated statements of financial condition. Fees receivable and fees payable are recorded at carrying value, which approximates fair value.

The Company may also make loans to employees or other affiliates, excluding executive officers of the Company. These loans are interest bearing and settle pursuant to the agreed-upon terms with such employees or affiliates and are included in due from related parties in the accompanying condensed consolidated statements of financial condition. As of September 30, 2016 and December 31, 2015, loans to employees of $7.9 million and $5.5 million, respectively, were included in due from related parties on the accompanying condensed consolidated statements of financial condition. The Company does not make loans to its executive officers. Of these amounts $2.1 million and $1.2 million, respectively, are related to forgivable loans. These forgivable loans provide for a cash payment up-front to employees, with the amount due back to the Company forgiven over a vesting period.  An employee that voluntarily ceases employment, or is terminated with cause, is generally required to pay back to the Company any unvested forgivable loans granted to them.  The forgivable loans are recorded as an asset to the Company

50

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

on the date of grant and payment, and then amortized to compensation expense on a straight-line basis over the vesting period.  The vesting period on forgivable loans is generally one to three years. The Company recorded compensation expense of $0.2 million and $0.6 million for the three months ended September 30, 2016 and 2015 and $0.9 million and $2.6 million for the nine months endedSeptember 30, 2016 and 2015, respectively. This expense is included in employee compensation and benefits in the accompanying condensed consolidated statement of operations. For the three and nine months endedSeptember 30, 2016, and 2015, the interest income was insignificant for all related party loans and advances.

Included in due to related parties is approximately $0.3 million and $0.3 million as of September 30, 2016 and December 31, 2015, respectively, related to a subordination agreement with an investor in certain real estate funds. This total is based on a hypothetical liquidation of the real estate funds as of the balance sheet date.

Included in due from related parties is $12.9 million related to a sale, in December of 2015, of a portion of the Company's ownership interest in the activist business of Starboard Value to the Starboard principals. It is being financed through the profits of the relevant Starboard entities over a five year period and earns interest at 5% per annum.  The interest income for the three and nine months endedSeptember 30, 2016 was $0.2 million and $0.5 million, respectively.

The remaining balance included in due from related parties of $11.7 million and $19.7 million as of September 30, 2016 and December 31, 2015, respectively, relates to amounts due to the Company from affiliated funds and real estate entities due to expenses paid on their behalf.

Employees and certain other related parties invest on a discretionary basis within consolidated entities. These investments generally are subject to preferential management fee and performance fee arrangements. As of September 30, 2016 and December 31, 2015, such investments aggregated $27.7 million and $21.3 million, respectively, were included in redeemable non-controlling interests on the accompanying condensed consolidated statements of financial condition. Their share of the net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds aggregated $2.9 million and $5.5 million for the three months ended September 30, 2016 and 2015 and $4.2 million and $10.3 million for the nine months endedSeptember 30, 2016 and 2015, respectively.

20. Guarantees and Off-Balance Sheet Arrangements

Guarantees

US GAAP requires the Company to disclose information about its obligations under certain guarantee arrangements. Those standards define guarantees as contracts and indemnification agreements that contingently require a guarantor to make payments to the guaranteed party based on changes in an underlying security (such as an interest or foreign exchange rate, security or commodity price, an index or the occurrence or nonoccurrence of a specified event) related to an asset, liability or equity security of a guaranteed party. Those standards also define guarantees as contracts that contingently require the guarantor to make payments to the guaranteed party based on another entity's failure to perform under an agreement as well as indirect guarantees of the indebtedness of others.

In the normal course of its operations, the Company enters into contracts that contain a variety of representations and warranties and which provide general indemnifications. The Company's maximum exposure under these arrangements is unknown as this would involve future claims that may be made against the Company that have not yet occurred. However, based on experience, the Company expects the risk of loss to be remote.

The Company indemnifies and guarantees certain service providers, such as clearing and custody agents, trustees and administrators, against specified potential losses in connection with their acting as an agent of, or providing services to, the Company or its affiliates. The Company also indemnifies some clients against potential losses incurred in the event specified third-party service providers, including sub-custodians and third-party brokers, improperly execute transactions. The maximum potential amount of future payments that the Company could be required to make under these indemnifications cannot be estimated. However, the Company believes that it is unlikely it will have to make significant payments under these arrangements and has not recorded any contingent liability in the condensed consolidated financial statements for these indemnifications.

The Company also provides representations and warranties to counterparties in connection with a variety of commercial transactions and occasionally indemnifies them against potential losses caused by the breach of those representations and warranties. The Company may also provide standard indemnifications to some counterparties to protect them in the event additional taxes are owed or payments are withheld, due either to a change in or adverse application of certain tax laws. These indemnifications generally are standard contractual terms and are entered into in the normal course of business. The maximum potential amount of future payments that the Company could be required to make under these indemnifications cannot be estimated. However, the Company believes it is unlikely it will have to make material payments under these arrangements and

51

Cowen Group, Inc.

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

has not recorded any contingent liability in the accompanying condensed consolidated financial statements for these indemnifications.

Off-Balance Sheet Arrangements

The Company has no material off-balance sheet arrangements as of September 30, 2016 and December 31, 2015. However, through indemnification provisions in the clearing agreement, customer activities may expose the Company to off-balance-sheet credit risk. Pursuant to the clearing agreement, the Company is required to reimburse the Company's clearing broker, without limit, for any losses incurred due to a counterparty's failure to satisfy its contractual obligations. However, these transactions are collateralized by the underlying security, thereby reducing the associated risk to changes in the market value of the security through the settlement date.

In addition, during the normal course of business, the Company has exposure to a number of risks including market risk, currency risk, credit risk, operational risk, liquidity risk and legal risk. As part of the Company's risk management process, these risks are monitored on a regular basis throughout the course of the year.

21. Subsequent Events

The Company has evaluated events that have occurred after the balance sheet date but before the financial statements are issued and has determined that there were no subsequent events requiring adjustment or disclosure in the condensed consolidated financial statements.

52

Item 2.    Management's Discussion and Analysis of Financial Condition and Results of Operations

This discussion contains forward-looking statements, which involve numerous risks and uncertainties, including, but not limited to, those described in the section titled “Risk Factors” in Item 1A of our 2015 Annual Report on Form 10-K. This Management's Discussion and Analysis of Financial Condition and Results of Operations should be read in conjunction with the condensed consolidated financial statements and related notes of Cowen Group, Inc. included elsewhere in this quarterly report. Actual results may differ materially from those contained in any forward-looking statements.

Overview

Cowen Group, Inc. (the "Company") is a diversified financial services firm and, together with its consolidated subsidiaries (collectively, "Cowen", "Cowen Group" or the "Company"), provides alternative investment management, investment banking, research, sales and trading and prime brokerage services through its two business segments: alternative investment and broker-dealer. The alternative investment segment includes hedge funds, private equity structures, registered investment companies and listed vehicles. The broker-dealer segment offers industry focused investment banking for growth-oriented companies including advisory and global capital markets origination and domain knowledge-driven research and a sales and trading platform for institutional investors.

Ramius is an alternative investment platform offering innovative products and solutions across the liquidity spectrum to institutional and private clients. The predecessor to this business was founded in 1994 and, through one of its subsidiaries, has been a registered investment adviser under the Investment Advisers Act of 1940 since 1997. Ramius offers investors access to strategies to meet their specific needs including long/short equity, activist equity, event driven equity, event driven credit, global macro, managed futures, health care royalties and private real estate. Ramius focuses on attracting and retaining talented in-house and affiliated investment teams and providing them with institutional infrastructure, robust sales and marketing and industry knowledge. A significant portion of the Company’s capital is invested alongside Ramius’s alternative investment clients. The Company has also invested some of its capital in its recently formed aviation and reinsurance businesses.Our alternative investment business had approximately $10.5 billion of assets under management as of October 1, 2016. See the section titled "Assets Under Management and Fund Performance" for further analysis.

Our broker-dealer businesses include research, sales and trading, prime brokerage and investment banking services to companies and primarily institutional investor clients. Our primary target sectors ("Target Sectors") are healthcare, technology, media and telecommunications, information and technology services, consumer, aerospace and defense, industrials,and energy and transportation. We provide research and brokerage services to over 1,000 domestic and international clients seeking to trade securities and debt instruments, principally in our target sectors.The broker-dealer segment also offers a full-service suite ofintroduced prime brokerage services targeting emerging hedge fund managers. Historically, we have focused our investment banking efforts on small to mid-capitalization public companies as well as private companies. From time to time, the Company invests in private capital raising transactions of its investment banking clients.

Certain Factors Impacting Our Business

Our alternative investment business and results of operations are impacted by the following factors:

• Assets under management.  Our revenues from management fees are directly linked to assets under management. As a result, the future performance of our alternative investment business will depend on, among other things, our ability to retain assets under management and to grow assets under management from existing and new products. In addition, positive performance increases assets under management which results in higher management fees.

• Investment performance.  Our revenues from incentive income are linked to the performance of the funds and accounts that we manage. Performance also affects assets under management because it influences investors' decisions to invest assets in, or withdraw assets from, the funds and accounts managed by us.

• Fee and allocation rates.  Our management fee revenues are linked to the management fee rates we charge as a percentage of assets under management. Our incentive income revenues are linked to the incentive allocation rates we charge as a percentage of performance-driven asset growth. Our incentive allocations are generally subject to “high-water marks,” whereby incentive income is generally earned by us only to the extent that the net asset value of a fund at the end of a measurement period exceeds the highest net asset value as of the end of the earlier measurement period for which we earned incentive income. Our incentive allocations, in some cases, are subject to performance hurdles.

• Investment performance of our own capital.  We invest our own capital and the performance of such invested capital affects our revenues.

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Our broker-dealer business and results of operations are impacted by the following factors:

• Underwriting, private placement and strategic/financial advisory fees.  Our revenues from investment banking are directly linked to the underwriting fees we earn in equity and debt securities offerings in which the Company acts as an underwriter, private placement fees earned in non-underwritten transactions, sales commissions earned in at-the-market offerings and success fees earned in connection with advising both buyers and sellers, principally in mergers and acquisitions. As a result, the future performance of our investment banking business will depend on, among other things, our ability to secure lead manager and co-manager roles in clients capital raising transactions as well as our ability to secure mandates as a client's strategic financial advisor.

• Commissions.  Our commission revenues depend for the most part on our customer trading volumes.

• Principal transactions. Principal transactions revenue includes net trading gains and losses from the Company's market-making activities and net trading gains and losses on inventory and other firm positions. Commissions associated with these transactions are also included herein. In certain cases, the Company provides liquidity to clients buying or selling blocks of shares of listed stocks without previously identifying the other side of the trade at execution, which subjects the Company to market risk.

• Equity and credit research fees.  Equity and credit research fees are paid to the Company for providing equity and credit research. The Company also permits institutional customers to allocate a portion of their commissions to pay for research products and other services provided by third parties. Our ability to generate revenues relating to our equity and credit research depends on the quality of our research and its relevance to our institutional customers and other clients.

• Investment performance of our own capital.  Investment income in the broker-dealer business includes gains and losses generated by the capital the Company invests in private capital raising transactions of its investment banking clients.  Our revenues from investment income are linked to the performance of the underlying investments.

External Factors Impacting Our Business

Our financial performance is highly dependent on the environment in which our businesses operate. We believe a favorable business environment is characterized by many factors, including a stable geopolitical climate, transparent financial markets, low inflation, low interest rates, low unemployment, strong business profitability and high business and investor confidence. Unfavorable or uncertain economic or market conditions can be caused by declines in economic growth, business activity or investor or business confidence, limitations on the availability (or increases in the cost of) credit and capital, increases in inflation or interest rates, exchange rate volatility, unfavorable global asset allocation trends, outbreaks of hostilities or other geopolitical instability, corporate, political or other scandals that reduce investor confidence in the capital markets, or a combination of these or other factors. Our businesses and profitability have been and may continue to be adversely affected by market conditions in many ways, including the following:

• Our broker-dealer business has been, and may continue to be, adversely affected by market conditions. Increased competition continues to affect our investment banking and capital markets businesses. The same factors also affect trading volumes in secondary financial markets, which affect our brokerage business. Commission rates, market volatility, increased competition from larger financial firms and other factors also affect our brokerage revenues and may cause these revenues to vary from period to period.

• Our broker-dealer business focuses primarily on small to mid-capitalization and private companies in specific industry sectors. These sectors may experience growth or downturns independent of general economic and market conditions, or may face market conditions that are disproportionately better or worse than those impacting the economy and markets generally. In addition, increased government regulation has had, and may continue to have, a disproportionate effect on capital formation by smaller companies. Therefore, our broker-dealer business could be affected differently than overall market trends.

• Our alternative investment business can be adversely affected by unanticipated levels of requested redemptions. We experienced significant levels of requested redemptions during the 2008 financial crisis and, while the environment for investing in alternative investment products has since improved, it is possible that we could intermittently experience redemptions above historical levels, regardless of fund performance.

Our businesses, by their nature, do not produce predictable earnings. Our results in any period can be materially affected by conditions in global financial markets and economic conditions generally. We are also subject to various legal and regulatory actions that impact our business and financial results.

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Recent Developments

On August 1, 2016, the Company announced that the Washington Research Group had joined the Company. The Cowen Washington Research Group is well known to institutional portfolio managers for high quality and in-depth work that draws on decades of policy-related experience.

On September 23, 2016, the Company and the portfolio managers ofRamius Alternative Solutions LLC("RASL")completed the sale of their respective ownership interests in RASL, an investment advisor. RASL offered a range of customized hedge fund investment solutions with approximately$2.5 billionin client assets.

Basis of presentation

The unaudited condensed consolidated financial statements of the Company in this Form 10-Q are prepared in accordance with generally accepted accounting principles in the United States of America ("US GAAP") as promulgated by the Financial Accounting Standards Board ("FASB") through Accounting Standards Codification as the source of authoritative accounting principles in the preparation of financial statements and include the accounts of the Company, its subsidiaries, and entities in which the Company has a controlling financial interest or a substantive, controlling general partner interest. All material intercompany transactions and balances have been eliminated in consolidation. Certain fund entities that are consolidated in the condensed consolidated financial statements, are not subject to these consolidation provisions with respect to their own investments pursuant to their specialized accounting.

The Company serves as the managing member/general partner and/or investment manager to affiliated fund entities which it sponsors and manages. Certain of these funds in which the Company has a substantive, controlling general partner interest are consolidated with the Company pursuant to US GAAP as described below (the “Consolidated Funds”). Consequently, the Company's condensed consolidated financial statements reflect the assets, liabilities, income and expenses of these funds on a gross basis. The ownership interests in these funds which are not owned by the Company are reflected as redeemable non-controlling interests in consolidated subsidiaries in the condensed consolidated financial statements appearing elsewhere in this Form 10-Q. The management fees and incentive income earned by the Company from these funds are eliminated in consolidation.

Revenue recognition

Our principal sources of revenue are derived from two segments: an alternative investment segment and a broker-dealer segment, as more fully described below.

Our alternative investment segment generates revenue through three principal sources: management fees, incentive income and investment income from the Company's own capital.

Our broker-dealer segment generates revenue through three principal sources: investment banking, brokerage and investment income.

Management fees

The Company earns management fees from affiliated funds and certain managed accounts that it serves as the investment manager based on assets under management. The actual management fees received vary depending on distribution fees or fee splits paid to third parties either in connection with raising the assets or structuring the investment.

Management fees are generally paid on a quarterly basis at the beginning of each quarter in arrears and are prorated for capital inflows and redemptions. While some investors may have separately negotiated fees, in general the management fees are as follows:

• Hedge Funds. Management fees for the Company's hedge funds are generally charged at an annual rate of up to2%of assets under management or notional trading level. Management fees are generally calculated monthly based on assets under management at the end of each month before incentive income.

• Registered Funds. Management fees for the Company’s registered funds (State Street/Ramius Managed Futures Strategy Fund and Ramius Archview Credit and Distressed Fund) are generally charged at an annual rate of up to 1.50%of assets under management.

• Alternative Solutions. Management fees for the Alternative Solutions business are generally charged at an annual rate of up to2%of assets under management or notional trading level. Management fees are generally calculated monthly based on assets under management at the end of each month before incentive income or based on assets under management at the beginning of the month. Management fees earned from the Alternative Solutions business are based and initially calculated on estimated net asset values and actual fees ultimately earned could be impacted to the

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extent of any changes in these estimates. (For a discussion on sale of our interest in RASL, see Item 2 "Recent Developments")

• Real Estate. Management fees from the Company's real estate business are generally charged by their general partners at an annual rate from0.25% to 1.50%of total capital commitments during the investment period and of invested capital or net asset value of the applicable fund after the investment period has ended. Management fees are typically paid to the general partners on a quarterly basis, at the beginning of the quarter in arrears, and are prorated for changes in capital commitments throughout the investment period and invested capital after the investment period. The general partners of the funds on the RCG Longview platform are owned jointly by the Company and third parties. Accordingly, the management fees (in addition to incentive income and investment income) generated by these real estate funds are split between the Company and the other general partners.Pursuant to US GAAP, these fees and other income received by the general partners that are accounted for under the equity method of accounting and are reflected under net gains (losses) on securities, derivatives and other investments in the accompanying condensed consolidated statements of operations.

• HealthCare Royalty Partners. During the investment period (as defined in the management agreement of the HealthCare Royalty Partners' funds), management fees for the funds and managed accounts advised by HealthCare Royalty Partners are generally charged at an annual rate of up to2%of committed capital. After the investment period, management fees are generally charged at an annual rate of up to 2%of the net asset value of the funds or managed accounts or the aggregate cost basis of the unrealized investments held by the funds. Management fees for the HealthCare Royalty Partners funds are calculated on a quarterly basis.

• Ramius Trading Strategies. Management fees and platform fees for the Company's private commodity trading advisory business are generally charged at an annual rate of up to0.5%. Management and platform fees are generally calculated monthly based on each account's notional trading level at the end of each month.

Incentive income

The Company earns incentive income based on net profits (as defined in the respective investment management agreements) with respect to certain of the Company's funds and managed accounts, allocable for each fiscal year that exceeds cumulative unrecovered net losses, if any, that have been carried forward from prior years. For the products we offer, incentive income earned is typically up to20% for hedge funds and up to 10%for alternative solutions products (in certain cases on performance in excess of a benchmark), of the net profits earned for the full year that are attributable to each fee-paying investor. Generally, incentive income on real estate funds is earned after the investor has received a full return of their invested capital, plus a preferred return. However, for certain real estate funds, the Company is entitled to receive incentive fees earlier, provided that the investors have received their preferred return on a current basis or on an investor by investor basis. These funds are generally subject to a potential clawback of these incentive fees upon the liquidation of the fund if the investor has not received a full return of its invested capital plus the preferred return thereon. Incentive income in the HealthCare Royalty Partners funds is generally earned only after investors receive a full return of their capital plus a preferred return.Pursuant to US GAAP, incentive income received by the general partners that are accounted for under the equity method of accounting and are reflected under net gains (losses) on securities, derivatives and other investments in the accompanying condensed consolidated statements of operations.

In periods following a period of a net loss attributable to an investor, the Company generally does not earn incentive income on any future profits attributable to that investor until the accumulated net loss from prior periods is recovered, an arrangement commonly referred to as a “high-water mark.” The Company has elected to record incentive income revenue in accordance with “Method 2” of US GAAP. Under Method 2, the incentive income from the Company's funds and managed accounts for any period is based upon the net profits of those funds and managed accounts at the reporting date. Any incentive income recognized in the accompanying condensed consolidated statement of operations may be subject to future reversal based on subsequent negative performance prior to the conclusion of the fiscal year, when all contingencies have been resolved.

Carried interest in the real estate funds is subject to clawback to the extent that the carried interest actually distributed to date exceeds the amount due to the Company based on cumulative results. As such, the accrual for potential repayment of previously received carried interest, which is a component of accounts payable, accrued expenses and other liabilities, represents all amounts previously distributed to the Company, less an assumed tax liability, that would need to be repaid to certain real estate funds if these funds were to be liquidated based on the current fair value of the underlying funds' investments as of the reporting date. The actual clawback liability does not become realized until the end of a fund's life.

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Investment Banking

The Company earns investment banking revenue primarily from fees associated with public and private capital raising transactions and providing strategic advisory services. Investment banking revenues are derived primarily from small and mid-capitalization companies within the Company's Target Sectors.

Investment banking revenue consists of underwriting fees, strategic/financial advisory fees and placement and sales agent fees.    

• Underwriting fees. The Company earns underwriting fees in securities offerings in which the Company acts as an underwriter, such as initial public offerings, follow-on equity offerings, debt offerings, and convertible security offerings. Fee revenue relating to underwriting commitments is recorded when all significant items relating to the underwriting process have been completed and the amount of the underwriting revenue has been determined. This generally is the point at which all of the following have occurred: (i) the issuer's registration statement has become effective with the SEC or the other offering documents are finalized; (ii) the Company has made a firm commitment for the purchase of securities from the issuer; and (iii) the Company has been informed of the number of securities that it has been allotted.

When the Company is not the lead manager for an underwriting transaction, management must estimate the Company's share of transaction-related expenses incurred by the lead manager in order to recognize revenue. Transaction-related expenses are deducted from the underwriting fee and therefore reduce the revenue the Company recognizes as co-manager. Such amounts are adjusted to reflect actual expenses in the period in which the Company receives the final settlement, typically within 90 days following the closing of the transaction.

• Strategic/financial advisory fees. The Company's strategic advisory revenues include success fees earned in connection with advising companies, principally in mergers and acquisitions and restructuring transactions. The Company also earns fees for related advisory work such as providing fairness opinions. The Company records strategic advisory revenues when the services for the transactions are completed under the terms of each assignment or engagement and collection is reasonably assured. Expenses associated with such transactions are deferred until the related revenue is recognized or the engagement is otherwise concluded.

• Placement and sales agent fees. The Company earns agency placement fees and sales agent commissions in non-underwritten transactions such as private placements of loans and debt and equity securities, including, private investment in public equity transactions (“PIPEs”), and as sales agent in at-the-market offerings of equity securities. The Company records placement revenues (which may be in cash and/or securities) when the services for the transactions are completed under the terms of each assignment or engagement and collection is reasonably assured. The Company records sales agent commissions on a trade date basis. Expenses associated with such transactions are deferred until the related revenue is recognized or the engagement is otherwise concluded.

Brokerage

Brokerage revenue consists of commissions, principal transactions and equity research fees.

• Commissions. Commission revenue includes fees from executing client transactions. These fees are recognized on a trade date basis. The Company permits institutional customers to allocate a portion of their commissions to pay for research products and other services provided by third parties. The amounts allocated for those purposes are commonly referred to as soft dollar arrangements. Commissions on soft dollar brokerage are recorded net of the related expenditures on an accrual basis. Commission revenues also includes fees from making algorithms available to clients.

• Principal Transactions. Principal transactions revenue includes net trading gains and losses from the Company's market-making activities in over-the-counter equity securities, trading of convertible securities, and trading gains and losses on inventory and other firm positions, which include warrants previously received as part of investment banking transactions. In certain cases, the Company provides liquidity to clients by buying or selling blocks of shares of listed stocks without previously identifying the other side of the trade at execution, which subjects the Company to market risk. These positions are typically held for a very short duration.

• Equity and Credit Research Fees. Equity and credit research fees are paid to the Company for providing equity and credit research. Revenue is recognized once an arrangement exists, access to research has been provided, the fee amount is fixed or determinable, and collection is reasonably assured.

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Investment Income

Investment income earned by the alternative investment and broker-dealer segments are earned from investing the Company's capital in various strategies and from investments in private capital raising transactions of its investment banking clients.

Interest and Dividends

Interest and dividends are earned by the Company from various sources. The Company receives interest and dividends primarily from investments held by its Consolidated Funds and its brokerage balances from invested capital and securities lending business. Interest is recognized on an accrual basis and interest income is recognized on the debt of those issuers that is deemed collectible. Interest income and expense includes premiums and discounts amortized and accreted on debt investments based on criteria determined by the Company using the effective yield method, which assumes the reinvestment of all interest payments. Dividends are recognized on the ex-dividend date.

Reimbursement from Affiliates

The Company allocates, at its discretion, certain expenses incurred on behalf of its hedge fund, fund of funds and real estate businesses. These expenses relate to the administration of such subsidiaries and assets that the Company manages for its funds. In addition, pursuant to the funds' offering documents, the Company charges certain allowable expenses to the funds, including charges and personnel costs for legal, compliance, accounting, tax compliance, risk and technology expenses that directly relate to administering the assets of the funds. Such expenses that have been reimbursed at their actual costs are included in the condensed consolidated statements of operations as employee compensation and benefits, professional, advisory and other fees, communications, occupancy and equipment, client services and business development and other.

Lease revenue

Lease revenue under operating leases is recognized on a straight-line basis over the term of the lease.

Expenses

The Company's expenses consist of compensation and benefits, interest expense and general, administrative and other expenses.

• Compensation and Benefits.  Compensation and benefits is comprised of salaries, benefits, discretionary cash bonuses and equity-based compensation. Annual incentive compensation is variable, and the amount paid is generally based on a combination of employees' performance, their contribution to their business segment, and the Company's performance. Generally, compensation and benefits comprise a significant portion of total expenses, with annual incentive compensation comprising a significant portion of total compensation and benefits expenses.

• Interest and Dividends.  Interest and dividend expense relates primarily to trading activity with respect to the Company's investments and interest expense on debt issued during March and October 2014.

• General, Administrative and Other.  General, administrative and other expenses are primarily related to professional services, occupancy and equipment, business development expenses, communications, insurance and other miscellaneous expenses. These expenses may also include certain one-time charges and non-cash expenses.

• Consolidated Funds Expenses.  Certain funds are consolidated by the Company pursuant to US GAAP. As such, the Company's consolidated financial statements reflect the expenses of these consolidated entities and the portion attributable to other investors is allocated to a redeemable non-controlling interest.

Income Taxes

The taxable results of the Company’s U.S. operations are subject to U.S. federal, state and city taxation as a corporation. The Company is also subject to foreign taxation on income it generates in certain countries.

The Company records deferred tax assets and liabilities for the future tax benefit or expense that will result from differences between the carrying value of its assets for income tax purposes and for financial reporting purposes, as well as for operating or capital loss and tax credit carryovers. A valuation allowance is recorded to bring the net deferred tax assets to a level that, in management’s view, is more likely than not to be realized in the foreseeable future. This level will be estimated based on a number of factors, especially the amount of net deferred tax assets of the Company that are actually expected to be realized, for tax purposes, in the foreseeable future. Deferred tax liabilities that cannot be realized in a similar future time period and thus that cannot offset the Company’s deferred tax assets are not taken into account when calculating the Company’s net deferred tax assets.

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Redeemable Non-controlling Interests

Redeemable non-controlling interests represent the pro rata share of the income or loss of the non-wholly owned consolidated entities attributable to the other owners of such entities. Due to the fact that the non-controlling interests are redeemable at the option of the holder they have been classified as temporary equity.

Assets Under Management and Fund Performance

Assets Under Management

Assets under management refer to all of our alternative investment products, solutions and services including hedge funds, private equity structures, registered investment companies and listed vehicles. The Company's alternative investment segment includes such strategies as long/short equity, activist equity, event driven equity, event driven credit, global macro, customized portfolio solutions, managed futures, health care royalties and private real estate.

Assets under management also include the fair value of assets the Company manages pursuant to separately managed accounts, collateralized debt obligations for which the Company is the collateral manager, and, as indicated in the footnotes to the table below, proprietary assets which the Company has invested in these products. Also, as indicated, assets under management for certain products may represent committed capital or committed funding that may not be under our control but forms part of the alternative investment product’s trading level. 

As of October 1, 2016, the Company had assets under management of $10.5 billion, a 21.0%decrease as compared to assets under management of $13.3 billion as of January 1, 2016. The $2.8 billion decrease in assets under management during the nine months endedSeptember 30, 2016 primarily resulted from the sale of the alternative solutions business (see note (a) to the following table).

The following table is a breakout of total assets under management by platform as of October 1, 2016 (which excludes cross investments from other Ramius platforms):

	Platform
	Hedge Funds (a) (b) (g) (l)			Alternative Solutions (a)			Ramius Trading Strategies (h)			Real Estate (a) (i)			Healthcare Royalty Partners (c) (d) (j)			Other (k)			Total
	(dollars in millions)
January 1, 2014	$	3,168		$	2,936		$	94		$	1,639		$	1,523		$	67		$	9,427
Subscriptions	1,132			1,326			35			249			1,059			—			3,801
Redemptions	(935		)	(272		)	—			(181		)	—			(19		)	(1,407		)
Performance (e)	853			(206		)	18			—			—			—			665
Net Return (f)	26.93		%	(7.02		)%	19.15		%	—		%	—		%	—		%	7.05		%
January 1, 2015	4,218			3,784			147			1,707			2,582			48			12,486
Subscriptions	2,725			997			—			—			—			—			3,722
Redemptions	(572		)	(810		)	(49		)	(65		)	(178		)	(14		)	(1,688		)
Performance (e)	(781		)	(419		)	(3		)	—			5			—			(1,198		)
Net Return (f)	(18.52		)%	(11.07		)%	(2.04		)%	—		%	0.19		%	—		%	(9.59		)%
January 1, 2016	5,590			3,552			95			1,642			2,409			34			13,322
Subscriptions	1,126			—			—			—			—			—			1,126
Redemptions	(544		)	(3,641		)	(17		)	(115		)	(1		)	(7		)	(4,325		)
Performance (e)	330			89			1			—			(13		)	—			407
Net Return (f)	5.90		%	2.51		%	1.05		%	—		%	(0.54		)%	—		%	3.06		%
October 1, 2016	$	6,502		$	—		$	79		$	1,527		$	2,395		$	27		$	10,530

(a) The Company owns between 20% and 55% of the general partners or managing members of the real estate business, the activist business, the global macro strategy business (the single strategy hedge funds) and the alternative solutions business (starting as of September 2013). On September 23, 2016 the Company completed the sale of its interest in the Alternative Solutions business, thereby reducing the Company’s estimated assets under management by approximately $2.5 billion.

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(b) These amounts include the Ramius Event Driven Equity Fund (which was liquidated in January 2016) and the Company's invested capital of approximately $173.7 million, $173.6 million and $172.2 million as of October 1, 2016, January 1, 2016 and January 1, 2015, respectively.

(c) These amounts include the Company's invested capital of approximately $15.8 million, $20.2 million and $20.7 million as of October 1, 2016, January 1, 2016 and January 1, 2015, respectively.

(d) This amount reflects committed capital.

(e) Performance and net returns are net of all management and incentive fees and includes the effect of any foreign exchange translation adjustments and leverage in certain funds.

(f) Net returns are calculated on the platform as a whole. Net return of individual funds will vary based on the timing and strategy the respective funds.

(g) The Company’s actively marketed hedge fund products have varying liquidity terms typically ranging from daily to quarterly liquidity with less liquidity applying to certain co-investment vehicles. In 2010, the Company suspended redemption rights with respect to certain hedge funds that are being wound down. The hedge funds that have suspended redemption rights represent approximately 4.94% of the total hedge fund assets under management.

(h) The Ramius Trading Strategies products offer investors daily liquidity.

(i) The real estate business does not provide investors with redemption rights. Investors receive distributions upon dispositions of the underlying real estate investments of which a portion reflects committed capital.

(j) The Healthcare Royalty funds do not provide investors with redemption rights. Investors receive distributions upon realizations of the funds’ investments.

(k) The collateralized debt obligations managed by the Company is an amortizing pool of assets with cash returned to investors in periodic distributions as it becomes available.

(l) Due to the sale of its interest in Orchard Square Partners, effective December 31, 2014, redemptions during the 2014 year include $420.8 million of assets under management related to this business.

Fund Performance

For the quarter ended September 30, 2016, the results of the Company's strategies generally improved relative to their respective benchmarks when compared to the previous three months.

Investor sentiment, following a brief negative response to the UK Brexit referendum on June 23, turned positive during the third quarter. This resulted in strong returns for equities, led by US small cap stocks and Emerging Markets. Eurozone, Japan and other Asian markets also fared well. Investors seem to be looking beyond near-term concerns over sluggish global economic growth. While the Federal Reserve did not raise rates during the third quarter, September Federal Open Market Committee comments suggested such a move might be possible by year-end. While U.S. Treasury 5-10 year notes experienced an increase in yield, corporate debt (both investment grade and high yield) had significant positive returns. Commodity prices, led by agriculture and energy, were lower in the three month period. Volatility across multiple asset classes continued to decline, specifically in respect of currency rates and commodities prices. The CBOE SPX Volatility Index (VIX) hit new lows during the quarter, and is now down 24% for the year through September.

Our activist strategy had positive results for the quarter, but lagged the Russell 2000 Index, which continued to recover from both the risk-off sentiment at the beginning of 2016 and the short-lived drawdown post-Brexit. On a year-to-date basis, the activist strategy has slightly underperformed the Russell 2000 Index, but maintains its long-term outperformance since inception. The activist strategy’s returns will continue to have a meaningful effect on the Company’s financial results due to the level of assets under management.  The merger arbitrage strategy rebounded sharply from the second quarter’s negative results, outperforming its benchmark index and drawing close to full recovery for the year. The new Ramius Merger Arbitrage UCITS Fund, in partnership with Bank America Merrill Lynch, began trading in July and also had positive results. Our options-based global macro strategy had negative performance as the markets continue to evidence an overall decline in implied volatilities as noted above. Another of our affiliate managers engages in equity long/short investing in consumer-related stocks. Since joining Ramius, the strategy has generated positive results, and that was the case again in the third quarter and on a year-to-date basis. Relative outperformance on both the short and long has allowed the strategy to beat the HFRX Equity Hedge Index thus far in 2016. Our other equity long/short affiliate (multi-sector) launched during the third quarter for outside investment on October 1, 2016. The State Street Ramius Managed Futures Strategy Fund, which offers exposure to multi-manager managed futures, had negative returns for the third quarter, but remains positive on a year to date basis. The Company’s alternative solutions business, which is based on institutional customized accounts, was sold in September 2016.

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The internally managed multi-strategy funds maintained their focus on capital preservation and continued to execute opportunistic transactions linked to certain assets.

With regard to the longer-dated investment vehicles in real estate, the largest legacy real estate debt fund, as well as the legacy equity fund were basically unchanged in value for the third quarter. Certain of the legacy real estate funds, including these two, are in the process of returning capital to investors.  The most recent real estate debt vehicle continues to make investments and interim results are meeting performance expectations. Our healthcare royalty strategy, having raised a substantial amount of capital in 2014, remains in its investment period. As noted last quarter, turbulence in the pharmaceutical and health care sectors continues to present attractive opportunities for longer term investors. As a result, the strategy has been able to put significant money to work in both its latest commingled fund and separately managed accounts.

Invested Capital

The Company invests a significant portion of its capital base to help drive results and facilitate the growth of its alternative investment and broker/dealer businesses. Management allocates capital to three primary investment categories: (i) trading strategies; (ii) merchant banking investments; and (iii) real estate investments. The Company seeks to make strategic and opportunistic investments in varying capital structures across a diverse array of businesses, hedge funds and mutual funds. Much of the Company's trading strategy portfolio is invested along side the Company's alternative investment clients and includes liquid investment strategies such as corporate credit trading, event driven, macro trading, and enhanced cash management. Within its merchant banking investments, management generally takes a long-term view that typically involves investing directly in public and private companies globally, private equity funds and along side its alternative investment clients. In addition, from time to time the Company makes investments in private capital raising transactions of its investment banking clients. The Company's real estate investment strategy focuses on making investments along side the alternative investment clients invested in the RCG Longview funds, as well as in direct investments in commercial real estate projects.

As of September 30, 2016, the Company's invested capital amounted to a net value of $682.7 million (supporting a long market value of $959.6 million), representing approximately 89% of Cowen Group's stockholders' equity presented in accordance with US GAAP. The table below presents the Company's invested equity capital by strategy and as a percentage of Cowen Group's stockholders' equity as of September 30, 2016. The net values presented in the table below do not tie to Cowen Group's condensed consolidated statement of financial condition as of September 30, 2016 because they are included in various line items of the accompanying condensed consolidated statement of financial condition, including “securities owned, at fair value”, “other investments”, “cash and cash equivalents”, and “consolidated funds-securities owned, at fair value”.

Strategy	Net Value		% of Stockholders' Equity
	(dollars in millions)
Trading	$	466.3	60%
Merchant Banking	161.0		21%
Real Estate	55.4		7%
Total	682.7		89%
Stockholders' Equity	$	771.2	100%

The allocations shown in the table above will change over time.

Results of Operations

To provide comparative information of the Company's operating results for the periods presented, a discussion of Economic Income (Loss) (which is a non-GAAP measure) of our alternative investment and broker-dealer segments follows the discussion of our total consolidated US GAAP results. Economic Income (Loss) reflects, on a consistent basis for all periods presented in the Company's condensed consolidated financial statements, income earned from the Company's funds and managed accounts and from its own invested capital. Economic Income (Loss) excludes certain adjustments required under US GAAP. See the section titled “Management's Discussion and Analysis of Financial Condition and Results of Operations of the Company-Segment Analysis and Economic Income (Loss),” and Note 17 to the accompanying condensed Company's consolidated financial statements, appearing elsewhere in this Form 10-Q, for a reconciliation of Economic Income (Loss) to total Company US GAAP net income (loss).

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Three Months Ended September 30, 2016 Compared with the Three Months Ended September 30, 2015

	Condensed Consolidated Statements of Operations
	(unaudited)
	Three Months Ended September 30,						Period to Period
	2016			2015			$ Change			% Change
	(dollars in thousands)
Revenues
Investment banking	$	36,722		$	53,012		$	(16,290	)	(31	)%
Brokerage	49,605			41,085			8,520			21	%
Management fees	10,272			10,519			(247		)	(2	)%
Incentive income	1,284			93			1,191			NM
Interest and dividends	3,906			3,604			302			8	%
Reimbursement from affiliates	2,140			3,355			(1,215		)	(36	)%
Aircraft lease revenue	1,089			—			1,089			NM
Other revenues	25,112			1,312			23,800			NM
Consolidated Funds revenues	897			274			623			227	%
Total revenues	131,027			113,254			17,773			16	%
Expenses
Employee compensation and benefits	98,501			56,401			42,100			75	%
Interest and dividends	7,612			7,367			245			3	%
General, administrative and other expenses	49,677			36,565			13,112			36	%
Consolidated Funds expenses	2,469			634			1,835			289	%
Total expenses	158,259			100,967			57,292			57	%
Other income (loss)
Net gain (loss) on securities, derivatives and other investments	26,153			(23,612		)	49,765			211	%
Consolidated Funds net gains (losses)	25,097			242			24,855			NM
Total other income (loss)	51,250			(23,370		)	74,620			319	%
Income (loss) before income taxes	24,018			(11,083		)	35,101			317	%
Income taxes expense (benefit)	8,759			(5,081		)	13,840			272	%
Net income (loss)	15,259			(6,002		)	21,261			354	%
Net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	18,478			4,344			14,134			325	%
Net income (loss) attributable to Cowen Group, Inc.	(3,219		)	(10,346		)	7,127			69	%
Preferred stock dividends	1,698			1,603			95			6	%
Net income (loss) attributable to Cowen Group, Inc. common stockholders	$	(4,917	)	$	(11,949	)	$	7,032		59	%

Revenues

Investment Banking

Investment banking revenues decreased$16.3 million to $36.7 million for the three months endedSeptember 30, 2016 compared with $53.0 millionin the prior year period. During the three months ended September 30, 2016, the Company completed 22 underwriting transactions, five strategic advisory transactions and two debt capital market transaction. During the three months ended September 30, 2015, the Company completed 27 underwriting transactions and two strategic advisory transactions. The average underwriting fee per transaction was 37.5% less in the third quarter of 2016 as compared to the prior year period.

Brokerage

Brokerage revenues increased$8.5 million to $49.6 million for the three months endedSeptember 30, 2016 compared with $41.1 million in the prior year period. This was attributable to the initiation of our prime brokerage businesses in the third and fourth quarters of 2015, the initiation of our credit business in May 2016 and a decrease in facilitation losses in our cash equities business partially offset by lower commissions due to a decrease in customer trading volumes in our cash equity business. Customer trading volumes across the industry (according to Bloomberg) decreased 10% for the three months ended September 30, 2016 compared to the same period in the prior year.

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Management Fees

Management fees decreased$0.2 million to $10.3 million for the three months endedSeptember 30, 2016 compared with $10.5 million in the prior year period. This decrease was primarily related to a decrease in management fees from our alternative solutions business partially offset by higher management fees in our prime services business (acquired during the fourth quarter of 2015) and our macro options business.

Incentive Income

Incentive income increased$1.2 million to $1.3 million for the three months endedSeptember 30, 2016, compared with $0.1 million in the prior year period. This increase was primarily related to an increase in performance fees from our multi strategy business.

Interest and Dividends

Interest and dividends increased$0.3 million to $3.9 million for the three months endedSeptember 30, 2016 compared with $3.6 million in the prior year period. This was primarily attributable to an increase in the number of investments in interest bearing securities during the quarter of 2016 as compared to the same quarter in 2015.

Reimbursements from Affiliates

Reimbursements from affiliates decreased$1.3 million to $2.1 million for the three months endedSeptember 30, 2016 compared with $3.4 million in the prior year period. The decrease is primarily related to a decrease in reimbursements from the activist business.

Aircraft lease revenue

Aircraft lease revenue was $1.1 million for the three months endedSeptember 30, 2016relating to our new aircraft leasing business which began during 2016.

Other Revenues

Other revenues increased$23.8 million to $25.1 million for the three months endedSeptember 30, 2016 compared with $1.3 million in the prior year period. The increase primarily relates to the sale of our interest in the alternative solutions business and premiums from our insurance-related business (which was entered into at the end of the fourth quarter of 2015).

Consolidated Funds Revenues

Consolidated Funds revenues increased$0.6 million to $0.9 million for the three months endedSeptember 30, 2016 compared with $0.3 million in the prior year period. The increase is due to the consolidation of new funds during 2016.

Expenses

Employee Compensation and Benefits

Employee compensation and benefits expenses increased$42.1 million to $98.5 million for the three months endedSeptember 30, 2016 compared with $56.4 million in the prior year period. The increase is primarily due to $74.7 million higher other income (loss) and $17.8 million higher revenues during the third quarter of 2016 as compared to 2015 and thus resulting in a higher compensation and benefits accrual. The compensation to revenue ratio, including other income (loss), was 54% for the three months ended September 30, 2016, compared with 63% for the prior year period.

Interest and Dividends

Interest and dividend expenses increased$0.2 million to $7.6 million for the three months endedSeptember 30, 2016 compared with $7.4 million in the prior year period. This was primarily attributable to an increase in the number of debt securities held during 2016 as compared to 2015.

General, Administrative and Other Expenses

General, administrative and other expenses increased$13.1 million to $49.7 million for the three months endedSeptember 30, 2016 compared with $36.6 million in the prior year period. The increase is primarily related to loss and claim reserves, acquisition costs and other expenses related to our insurance and reinsurance related policies entered into during the second quarter of 2016 related to our respective businesses which commenced at the end of the fourth quarter of 2015.In addition there are higher floor brokerage and trade execution costs, due to higher brokerage revenue, and increased marketing and business development expenses, legal and other professional fees and increased occupancy costs, some of which is related to acquisitions during late 2015 and during 2016.

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Consolidated Funds Expenses

Consolidated Funds expenses increased$1.9 million to $2.5 million for the three months endedSeptember 30, 2016 compared with $0.6 million for the prior year period. The increase is due to the consolidation of new funds during 2016.

Other Income (Loss)

Other income (loss) increased$74.7 million to an income of $51.3 million for the three months endedSeptember 30, 2016 compared with a loss of $23.4 million in the prior year period. The increase primarily relates to an increase in performance in our activist strategy and the Company's own invested capital. The gains and losses shown under Consolidated Funds reflect the consolidated total performance for such funds, and the portion of those gains or losses that are attributable to other investors is allocated to redeemable non-controlling interests.

Income Taxes

Income tax expense increased $13.9 million to $8.8 million for the three months endedSeptember 30, 2016 compared with an income tax benefit of $5.1 million in the prior year period. This change is primarily attributable to the Company's operating results.

Income (Loss) Attributable to Redeemable Non-controlling Interests

Income (loss) attributable to redeemable non-controlling interests increased by $14.2 million to $18.5 million for the three months endedSeptember 30, 2016 compared with $4.3 million in the prior year period. The increase was primarily the result of increased performance by one of our consolidated funds. Non-controlling interests represent the pro rata share of the income or loss of the non-wholly owned consolidated entities attributable to the other owners of such entities.

Preferred Stock Dividends

On May 19, 2015, the Company completed its offering of 120,750 shares of the Company's 5.625% Series A cumulative perpetual convertible preferred stock. Each share of the Series A Convertible Preferred Stock is entitled to dividends at a rate of 5.625% per annum. The Company may, at its option, pay dividends in cash, common stock or a combination thereof.

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Nine Months Ended September 30, 2016 Compared with Nine Months Ended September 30, 2015

	Condensed Consolidated Statements of Operations
	(unaudited)
	Nine Months Ended September 30,					Period to Period
	2016			2015		$ Change			% Change
	(dollars in thousands)
Revenues
Investment banking	$	98,156		$	186,763	$	(88,607	)	(47	)%
Brokerage	147,640			111,496		36,144			32	%
Management fees	31,951			31,169		782			3	%
Incentive income	2,823			365		2,458			673	%
Interest and dividends	11,664			9,846		1,818			18	%
Reimbursement from affiliates	8,268			10,499		(2,231		)	(21	)%
Aircraft lease revenue	3,071			—		3,071			NM
Other revenues	41,183			2,684		38,499			NM
Consolidated Funds revenues	4,541			1,134		3,407			300	%
Total revenues	349,297			353,956		(4,659		)	(1	)%
Expenses
Employee compensation and benefits	217,309			227,593		(10,284		)	(5	)%
Interest and dividends	21,866			19,241		2,625			14	%
General, administrative and other expenses	146,321			108,309		38,012			35	%
Consolidated Funds expenses	6,428			1,626		4,802			295	%
Total expenses	391,924			356,769		35,155			10	%
Other income (loss)
Net gain (loss) on securities, derivatives and other investments	9,123			24,449		(15,326		)	(63	)%
Consolidated Funds net gains (losses)	7,054			7,624		(570		)	(7	)%
Total other income (loss)	16,177			32,073		(15,896		)	(50	)%
Income (loss) before income taxes	(26,450		)	29,260		(55,710		)	(190	)%
Income taxes expense (benefit)	(6,553		)	5,212		(11,765		)	(226	)%
Net income (loss)	(19,897		)	24,048		(43,945		)	(183	)%
Net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	(2,524		)	10,980		(13,504		)	(123	)%
Net income (loss) attributable to Cowen Group, Inc.	(17,373		)	13,068		(30,441		)	(233	)%
Preferred stock dividends	5,094			2,358		2,736			116	%
Net income (loss) attributable to Cowen Group, Inc. common stockholders	$	(22,467	)	$	10,710	$	(33,177	)	(310	)%

Revenues

Investment Banking

Investment banking revenues decreased$88.6 million to $98.2 million for the nine months endedSeptember 30, 2016 compared with $186.8 millionin the prior year period. During the nine months endedSeptember 30, 2016, the Company completed 55 underwriting transactions, nine strategic advisory transactions and five debt capital market transactions. During the nine months endedSeptember 30, 2015, the Company completed 113 underwriting transactions, nine strategic advisory transactions and four debt capital market transactions. The average underwriting fee per transaction was 11.7% less for the nine months ended September 30, 2016 as compared to the prior year period.

Brokerage

Brokerage revenues increased$36.1 million to $147.6 million for the nine months endedSeptember 30, 2016 compared with $111.5 millionin the prior year period. This was attributable to higher commissions due to an increase in customer trading volumes, a decrease in facilitation losses in our cash equities business, the initiation of our prime brokerage businesses in the third and fourth quarters of 2015 and the initiation of our credit trading business in May 2016.Customer trading volumes across the industry (according to Bloomberg) increased 9% for the nine months ended September 30, 2016 compared to the prior year.

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Management Fees

Management fees increased$0.8 million to $32.0 million for the nine months endedSeptember 30, 2016 compared with $31.2 millionin the prior year period. This increase was primarily related to an increase in management fees from our prime services business (acquired during the fourth quarter of 2015) and our macro options business partially offset with lower management fees from our alternative solutions business.

Incentive Income

Incentive income increased$2.4 million to $2.8 million for the nine months endedSeptember 30, 2016, compared with $0.4 million in the prior year period. This increase was primarily related to an increase in performance fees from our multi strategy business.

Interest and Dividends

Interest and dividends increased$1.9 million to $11.7 million for the nine months endedSeptember 30, 2016 compared with $9.8 millionin the prior year period. This was primarily attributable to an increase in the number of investments in interest bearing securities during 2016 as compared to 2015.

Reimbursements from Affiliates

Reimbursements from affiliates decreased$2.2 million to $8.3 million for the nine months endedSeptember 30, 2016 compared with $10.5 million in the prior year period. The decrease is primarily related to a decrease in reimbursements from the activist business.

Aircraft lease revenues

Aircraft lease revenues were $3.1 million for the nine months endedSeptember 30, 2016relating to our new aircraft leasing business which began during 2016.

Other Revenues

Other revenues increased$38.5 million to $41.2 million for the nine months endedSeptember 30, 2016 compared with $2.7 million in the prior year period. The increase primarily relates to the sale of our interest in the alternative solutions business and premiums from our insurance-related business (which was entered into at the end of the fourth quarter of 2015).

Consolidated Funds Revenues

Consolidated Funds revenues increased$3.4 million to $4.5 million for the nine months endedSeptember 30, 2016 compared with $1.1 million in the prior year period. The increase is due to the consolidation of new funds during 2016.

Expenses

Employee Compensation and Benefits

Employee compensation and benefits expenses decreased$10.3 million to $217.3 million for the nine months endedSeptember 30, 2016 compared with $227.6 millionin the prior year period. The decrease is primarily due to $4.7 million lower total revenues and $15.9 million lower other income (loss) during 2016 as compared to 2015, resulting in a lower compensation and benefits accrual. The compensation to revenue ratio, including other income (loss), was 59% for the nine months endedSeptember 30, 2016, compared with 59% in the prior year period.

Interest and Dividends

Interest and dividend expenses increased$2.7 million to $21.9 million for the nine months endedSeptember 30, 2016 compared with $19.2 millionin the prior year period. This was primarily attributable to an increase in the number of debt securities held during 2016 as compared to 2015.

General, Administrative and Other Expenses

General, administrative and other expenses increased$38.0 million to $146.3 million for the nine months endedSeptember 30, 2016 compared with $108.3 millionin the prior year period. The increase is primarily related to loss and claim reserves, acquisition costs and other expenses related to our insurance and reinsurance related policies entered into during the second quarter of 2016 related to our respective businesses which commenced at the end of the fourth quarter of 2015.In addition there are higher floor brokerage and trade execution costs, due to higher brokerage revenue, and increased marketing and business development expenses, legal and other professional fees and increased occupancy costs, some of which is related to acquisitions during late 2015 and during 2016.

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Consolidated Funds Expenses

Consolidated Funds expenses increased$4.8 million to $6.4 million for the nine months endedSeptember 30, 2016 compared with $1.6 million in the prior year period. The increase is due to the consolidation of new funds during 2016.

Other Income (Loss)

Other income (loss) decreased$15.9 million to $16.2 million for the nine months endedSeptember 30, 2016 compared with $32.1 millionin the prior year period. The decrease primarily relates to a decrease in performance of the Company's own invested capital. The gains and losses shown under Consolidated Funds reflect the consolidated total performance for such funds, and the portion of those gains or losses that are attributable to other investors is allocated to redeemable non-controlling interests.

Income Taxes

Income tax benefit increased $11.8 million to $6.6 million for the nine months endedSeptember 30, 2016 compared with an income tax expense of $5.2 million in the prior year period. This change is primarily attributable to the Company’s operating results.

Income (Loss) Attributable to Redeemable Non-controlling Interests

Income (loss) attributable to redeemable non-controlling interests decreased$13.5 million to a loss of $2.5 million for the nine months endedSeptember 30, 2016 compared with an income of $11.0 millionin the prior year period. The decrease was primarily the result of losses incurred by one of our consolidated funds. Non-controlling interests represent the pro rata share of the income or loss of the non-wholly owned consolidated entities attributable to the other owners of such entities.

Preferred Stock Dividends

On May 19, 2015, the Company completed its offering of 120,750 shares of the Company's 5.625% Series A cumulative perpetual convertible preferred stock. Each share of the Series A Convertible Preferred Stock is entitled to dividends at a rate of 5.625% per annum. The Company may, at its option, pay dividends in cash, common stock or a combination thereof.

Segment Analysis and Economic Income (Loss)

Segments

The Company conducts its operations through two segments: an alternative investment segment and a broker-dealer segment.

For the three and nine months endedSeptember 30, 2016 and 2015, the Company's alternative investment segment includes hedge funds, private equity structures, registered investment companies and listed vehicles operating results and other investment platforms operating results.

For the three and nine months endedSeptember 30, 2016 and 2015, the Company's broker-dealer segment includes investment banking, research, sales and trading and prime brokerage businesses' operating results.

Economic Income (Loss)

The performance measure used by the Company for each segment is Economic Income (Loss), which management uses to evaluate the financial performance of and to make operating decisions for the firm as a whole and each segment. Accordingly, management assesses its business by analyzing the performance of each segment and believes that investors should review the same performance measure that it uses to analyze its segment and business performance. In addition, management believes that Economic Income (Loss) is helpful to gain an understanding of its segment results of operations because it reflects such results on a consistent basis for all periods presented.

Our Economic Income (Loss) may not be comparable to similarly titled measures used by other companies. We use Economic Income (Loss) as a measure of each segment's operating performance, not as a measure of liquidity. Economic Income (Loss) should not be considered in isolation or as a substitute for operating income, net income, operating cash flows, investing and financing activities, or other income or cash flow statement data prepared in accordance with US GAAP. As a result of the adjustments made to arrive at Economic Income (Loss), Economic Income (Loss) has limitations in that it does not take into account certain items included or excluded under US GAAP, including our Consolidated Funds. Economic Income (Loss) is considered by management as a supplemental measure to the US GAAP results to provide a more complete understanding of each segment's performance as measured by management. For a reconciliation of Economic Income (Loss) to US GAAP net income (loss) for the periods presented and additional information regarding the reconciling adjustments discussed above, see Note 17 to the Company's condensed consolidated financial statements included in this Quarterly Report on Form 10-Q.

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In general, Economic Income (Loss) is a pre-tax measure that (i) eliminates the impact of consolidation for consolidated funds (ii) excludes goodwill and intangible impairment (iii) excludes certain other acquisition-related adjustments and/or reorganization expenses and (iv) excludes preferred stock dividends. In addition, Economic Income (Loss) revenues include investment income that represents the income the Company has earned in investing its own capital, including realized and unrealized gains and losses, interest and dividends, net of associated investment related expenses. For US GAAP purposes, these items are included in each of their respective line items. Economic Income (Loss) revenues also include management fees, incentive income and investment income earned through the Company's investment as a general partner in certain real estate entities and the Company's investment in the activist business. For US GAAP purposes, all of these items are recorded in other income (loss). In addition, Economic Income (Loss) expenses are reduced by reimbursement from affiliates, which for US GAAP purposes is presented gross as part of revenue.

Economic Income (Loss) Revenues

The Company's principal sources of Economic Income (Loss) revenues are derived from activities in the following business segments:

Our alternative investment segment generates Economic Income (Loss) revenues through three principal sources: management fees, incentive income and investment income from our own capital. Management fees are directly impacted by any increase or decrease in assets under management, while incentive income is impacted by our funds' performance and resulting increase or decrease in assets under management. Investment income from the Company's own capital is impacted by the performance of the funds and other securities in which our capital is invested.

Our broker-dealer segment generates Economic Income (Loss) revenues through two principal sources: investment banking and brokerage. The Company earns investment banking revenue primarily from fees associated with public and private capital raising transactions and providing strategic advisory services. Investment banking revenues are derived primarily from small and mid-capitalization companies within the Company's Target Sectors: healthcare, technology, media and telecommunications, information and technology services, consumer, aerospace and defense, industrials,and energy and transportation. The Company's brokerage revenues consist of commissions, principal transactions and fees paid for equity research. Cowen's broker-dealer segment also offers a full-service suite of prime brokerage services. Management reviews brokerage revenue on a combined basis as the vast majority of the revenue is derived from the same group of clients. The Company derives its brokerage revenue primarily from trading equity and equity-linked securities on behalf of institutional investors. The majority of the Company's trading gains and losses are a result of activities that support the facilitation of client orders in both listed and over-the-counter securities, although all trading gains and losses are recorded in brokerage in the accompanying condensed consolidated statement of operations.

Economic Income (Loss) Expenses

The Company's Economic Income expenses consist of non-interest expenses and interest expense. Non interest expenses consist of compensation and benefits and non-compensation expenses (fixed and variable), less reimbursement from affiliates. Interest expense is primarily interest from indebtedness, not trading activity (which is included within investment income (loss)).

Non-controlling Interests

Non-controlling interests represent the pro rata share of the income or loss of the non-wholly owned consolidated entities attributable to the partners of such entities.

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Three Months Ended September 30, 2016 Compared with the Three Months Ended September 30, 2015

	Economic Income (Loss)
	(unaudited)
	Three Months Ended September 30,
	2016								2015									Total Period-to-Period
	Alternative Investment					Total			Alternative Investment						Total
				Broker-Dealer								Broker-Dealer						$ Change			% Change
	(dollars in thousands)
Economic Income Revenues
Investment banking	$	—		$	36,722	$	36,722		$	—		$	53,012		$	53,012		$	(16,290	)	(31	)%
Brokerage	—			51,524		51,524			18			41,857			41,875			9,649			23	%
Management fees	15,746			793		16,539			17,739			282			18,021			(1,482		)	(8	)%
Incentive income (loss)	11,825			—		11,825			(8,629		)	—			(8,629		)	20,454			237	%
Investment income (loss)	14,798			4,932		19,730			(16,781		)	(5,243		)	(22,024		)	41,754			190	%
Other revenues	17,145			25		17,170			(9		)	573			564			16,606			NM
Total economic income revenues	59,514			93,996		153,510			(7,662		)	90,481			82,819			70,691			85	%
Non-interest expenses	43,589			92,259		135,848			6,133			84,721			90,854			44,994			50	%
Interest expense	3,205			1,079		4,284			2,970			1,287			4,257			27			1	%
Non-controlling interest	(2,354		)	—		(2,354		)	(2,231		)	—			(2,231		)	(123		)	(6	)%
Economic income (loss)	$	10,366		$	658	$	11,024		$	(18,996	)	$	4,473		$	(14,523	)	$	25,547		(176	)%

Economic Income (Loss) Revenues

Total Economic Income (Loss) revenues were $153.5 million for the three months endedSeptember 30, 2016, an increase of $70.7 million compared to Economic Income (Loss) revenues of $82.8 millionin the prior year period. The increase was primarily related to an increase in performance in investment income, incentive fees and other revenues offset partially by a decrease in investment banking activity. For purposes of the following section, all references to revenue refer to Economic Income (Loss) revenues.

Alternative Investment Segment

Alternative investment segment Economic Income (Loss) revenues were $59.5 million for the three months endedSeptember 30, 2016, an increase of $67.2 million compared to Economic Income (Loss) revenues which were a loss $7.7 millionin the prior year period.

Management Fees.    Management fees for the segment decreased$2.0 million to $15.7 million for the three months endedSeptember 30, 2016 compared with $17.7 millionin the prior year period. This decrease was primarily related to a decrease in management fees for our activist and alternative solutions businesses.

Incentive Income (Loss).    Incentive income for the segment increased$20.4 million to $11.8 million for the three months endedSeptember 30, 2016 compared with a loss of $8.6 millionin the prior year period. This increase was primarily related to an increase in performance from our activist business.

Investment Income (Loss).    Investment income for the segment increased$31.6 million to an income of $14.8 million for the three months endedSeptember 30, 2016, compared with a loss of $16.8 millionin the prior year period. The increase primarily relates to an increase in the Company's performance in the Company's own invested capital.

Other Revenues.    Other revenues for the segment increased to $17.2 million for the three months endedSeptember 30, 2016. This increase is primarily related to the sale of our interest in the alternative solutions business and is also related to net underwriting income from our insurance-related business (which was entered into at the end of the fourth quarter of 2015).

Broker-Dealer Segment

Broker-dealer segment Economic Income (Loss) revenues were $94.0 million for the three months endedSeptember 30, 2016, an increase of $3.5 million compared with Economic Income (Loss) revenues of $90.5 millionin the prior year period.

Investment Banking.    Investment banking revenues decreased$16.3 million to $36.7 million for the three months endedSeptember 30, 2016 compared with $53.0 millionin the prior year period. During the three months ended September 30, 2016, the Company completed 22 underwriting transactions, five strategic advisory transactions and two debt capital market

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transaction. During the three months ended September 30, 2015, the Company completed 27 underwriting transactions and two strategic advisory transactions. The average underwriting fee per transaction was 37.5% less in the third quarter of 2016 as compared to the prior year period.

Brokerage.    Brokerage revenues increased$9.6 million to $51.5 million for the three months endedSeptember 30, 2016, compared with $41.9 millionin the prior year period. This was attributable to the initiation of our prime brokerage businesses in the third and fourth quarters of 2015, the initiation of our credit business in May 2016 and a decrease in facilitation losses in our cash equities business partially offset by lower commissions due to a decrease in customer trading volumes in our cash equity business. Customer trading volumes across the industry (according to Bloomberg) decreased 10% for the three months ended September 30, 2016 compared to the same period in the prior year.

Investment Income (Loss).    Investment income for the segment increased$10.1 million to an income of $4.9 million for the three months endedSeptember 30, 2016 compared with a loss of $5.2 million in the prior year period. The increase is a result of an increase in overall investment income which is allocated amongst the segments.

Non-Interest Expenses

Non-interest expenses.    Total non-interest expenses increased$44.9 million to $135.8 million for the three months endedSeptember 30, 2016, compared with $90.9 millionin the prior year period.

Compensation and Benefits.    Compensation and benefits expenses, included within non-interest expenses, increased$38.5 million to $93.7 million for the three months endedSeptember 30, 2016, compared with $55.2 millionin the prior year period. The increase is due to $70.7 million higher revenues during the third quarter of 2016 as compared to 2015 and thus resulting in a higher compensation and benefits accrual. The compensation to revenue ratio was 61% for the three months ended September 30, 2016, compared to 67% for the prior year period.

Non-compensation Expenses—Fixed.    Fixed non-compensation expenses, included within non-interest expenses,increased$1.8 million to $28.0 million for the three months endedSeptember 30, 2016, compared with $26.2 million in the prior year period. This increase was primarily due to higher communications, increased occupancy costs and increased depreciation and amortization all of which are primarily related to acquisitions during late 2015 and during 2016.

The following table shows the components of the non-compensation expenses—fixed, for the three months endedSeptember 30, 2016 and 2015:

	Three Months Ended September 30,				Period-to-Period
	2016		2015		$ Change			% Change
	(dollars in thousands)
Non-compensation expenses—fixed:
Communications	$	4,613	$	3,477	$	1,136		33	%
Professional, advisory and other fees	3,932		4,677		(745		)	(16	)%
Occupancy and equipment	7,541		6,736		805			12	%
Depreciation and amortization	2,726		2,297		429			19	%
Service fees	2,059		1,769		290			16	%
Expenses from equity investments	3,923		3,536		387			11	%
Other	3,197		3,747		(550		)	(15	)%
Total	$	27,991	$	26,239	$	1,752		7	%

Non-compensation Expenses—Variable.    Variable non-compensation expenses, included within non-interest expenses, which primarily are comprised of expenses which are incurred as a direct result of the processing and soliciting of revenue generating activities, increased$3.1 million to $14.8 million for the three months endedSeptember 30, 2016, compared with $11.7 million in the prior year period. The increase is primarily related to higher floor brokerage and trade execution costs, due to higher brokerage revenue, and increased marketing and business development expenses, some of which is related to acquisitions during late 2015 and during 2016.

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The following table shows the components of the non-compensation expenses—variable, for the three months endedSeptember 30, 2016 and 2015:

	Three Months Ended September 30,				Period-to-Period
	2016		2015		$ Change		% Change
	(dollars in thousands)
Non-compensation expenses—Variable:
Floor brokerage and trade execution	$	7,393	$	5,764	$	1,629	28	%
HealthCare Royalty Partners syndication costs	132		132		—		—	%
Expenses related to Luxembourg insurance companies	861		760		101		13	%
Marketing and business development	5,942		4,838		1,104		23	%
Other	432		237		195		82	%
Total	$	14,760	$	11,731	$	3,029	26	%

Interest expense.    Interest expense, which primarily relates to debt issued during the first and fourth quarters of 2014, remained fairly constant at $4.3 million for the three months endedSeptember 30, 2016 compared with the prior year period.

Reimbursement from Affiliates.    Reimbursements from affiliates, included within non-interest expenses, which relate to the alternative investment segment, decreased$1.7 million to $0.6 million for the three months endedSeptember 30, 2016 compared with $2.3 million in the prior year period. The decrease is primarily related to a decrease in reimbursements from the activist business.

Non-Controlling Interest.    Income (loss) attributable to redeemable non-controlling interests increased by $0.2 million to $2.4 million for the three months endedSeptember 30, 2016 compared with $2.2 millionin the prior year period. The increase is primarily related to an increase in income allocable to partners due to new partnership agreements entered into during 2015 and early 2016. Non-Controlling interest represents the portion of the net income or loss attributable to certain non-wholly owned subsidiaries that is allocated to other investors.

Nine Months Ended September 30, 2016 Compared with Nine Months Ended September 30, 2015

	Economic Income (Loss)
	Nine Months Ended September 30,
	2016									2015								Total Period-to-Period
	Alternative Investment						Total			Alternative Investment					Total
				Broker-Dealer									Broker-Dealer					$ Change			% Change
	(dollars in thousands)
Economic Income Revenues
Investment banking	$	—		$	98,156		$	98,156		$	—		$	186,763	$	186,763		$	(88,607	)	(47	)%
Brokerage	—			153,417			153,417			41			112,292		112,333			41,084			37	%
Management fees	47,604			2,334			49,938			50,885			282		51,167			(1,229		)	(2	)%
Incentive income (loss)	19,174			—			19,174			(1,081		)	—		(1,081		)	20,255			NM
Investment income (loss)	(444		)	(147		)	(591		)	14,309			4,763		19,072			(19,663		)	(103	)%
Other income (loss)	19,366			84			19,450			84			605		689			18,761			NM
Total economic income revenues	85,700			253,844			339,544			64,238			304,705		368,943			(29,399		)	(8	)%
Non-interest expenses	77,917			257,972			335,889			57,164			273,939		331,103			4,786			1	%
Interest expense	9,645			3,288			12,933			8,880			3,545		12,425			508			4	%
Non-controlling interest	(6,589		)	—			(6,589		)	(6,128		)	—		(6,128		)	(461		)	(8	)%
Economic income (loss)	$	(8,451	)	$	(7,416	)	$	(15,867	)	$	(7,934	)	$	27,221	$	19,287		$	(35,154	)	(182	)%

Economic Income (Loss) Revenues

Total Economic Income (Loss) revenues were $339.5 million for the nine months endedSeptember 30, 2016, a decrease of $29.4 million compared to Economic Income (Loss) revenues of $368.9 millionin the prior year period. The decrease was related to investment banking activity and a decrease in performance in investment income offset partially by an increase in brokerage activity and other income. For purposes of the following section, all references to revenue refer to Economic Income (Loss) revenues.

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Alternative Investment Segment

Alternative investment segment Economic Income (Loss) revenues were $85.7 million for the nine months endedSeptember 30, 2016, an increase of $21.5 million compared to Economic Income (Loss) revenues of $64.2 million in the prior year period.

Management Fees.    Management fees for the segment decreased$3.3 million to $47.6 million for the nine months endedSeptember 30, 2016 compared with $50.9 million in the prior year period. This decrease was primarily related to a decrease in management fees for our alternative solutions and activist businesses offset partially by an increase in management fees from our macro options and equities businesses.

Incentive Income (Loss).    Incentive income for the segment increased$20.3 million to $19.2 million for the nine months endedSeptember 30, 2016 compared with a loss of $1.1 million in the prior year period. This increase was primarily related to an increase in performance from our activist business.

Investment Income (Loss).    Investment income for the segment decreased$14.7 million to a loss of $0.4 million for the nine months endedSeptember 30, 2016 compared with $14.3 million in the prior year period. The decrease primarily relates to a decrease in performance of the Company's own invested capital.

Other Income (Loss).    Other income (loss) for the segment increased$19.3 million to $19.4 million for the nine months endedSeptember 30, 2016 compared with $0.1 million in the prior year period. This increase is primarily related to the sale of our interest in the alternative solutions business and is also related to net underwriting income from our insurance-related business (which was entered into at the end of the fourth quarter of 2015).

Broker-Dealer Segment

Broker-dealer segment Economic Income (Loss) revenues were $253.8 million for the nine months endedSeptember 30, 2016, a decrease of $50.9 million compared with Economic Income (Loss) revenues of $304.7 million in the prior year.

Investment Banking.    Investment banking revenues decreased$88.6 million to $98.2 million for the nine months endedSeptember 30, 2016 compared with $186.8 millionin the prior year period. During the nine months endedSeptember 30, 2016, the Company completed 55 underwriting transactions, nine strategic advisory transactions and five debt capital market transactions. During the nine months endedSeptember 30, 2015, the Company completed 113 underwriting transactions, nine strategic advisory transactions and four debt capital market transactions. The average underwriting fee per transaction was 11.7% less for the nine months ended September 30, 2016 as compared to the prior year period.

Brokerage.    Brokerage revenues increased$41.1 million to $153.4 million for the nine months endedSeptember 30, 2016, compared with $112.3 millionin the prior year period. This was attributable to higher commissions due to an increase in customer trading volumes, a decrease in facilitation losses in our cash equities business, the initiation of our prime brokerage businesses in the third and fourth quarters of 2015 and the initiation of our credit trading business in May 2016.Customer trading volumes across the industry (according to Bloomberg) increased 9% for the nine months ended September 30, 2016 compared to the prior year.

Investment Income (Loss).    Investment income for the segment decreased$4.9 million to a loss of $0.1 million for the nine months endedSeptember 30, 2016, compared with $4.8 million in the prior year period. The decrease is a result of a decrease in overall investment income which is allocated amongst the segments.

Other Income (Loss).    Other income (loss) for the segment decreased$0.5 million to $0.1 million for the nine months endedSeptember 30, 2016, compared with $0.6 million in the prior year period.

Non-Interest Expenses

Non-interest expenses.    Total non-interest expenses increased$4.8 million to $335.9 million for the nine months endedSeptember 30, 2016, compared with $331.1 millionin the prior year period.

Compensation and benefits expenses. Compensation and benefits expenses, included within non-interest expenses,decreased$14.6 million to $210.3 million for the nine months endedSeptember 30, 2016 compared with $224.9 millionin the prior year period. The decrease is due to $29.4 million lower revenues during 2016 as compared to 2015 and resulted in a lower compensation and benefits accrual. The compensation to revenue ratio was 62% for the nine months endedSeptember 30, 2016 compared with 61% in the prior year period.

Non-compensation Expenses—Fixed.    Fixed non-compensation expenses, included within non-interest expenses, increased $6.5 million to $82.6 million for the nine months endedSeptember 30, 2016 compared with $76.0 millionin the prior year period. This increase was primarily due to higher communications, increased occupancy costs and increased depreciation and amortization all of which are primarily related to acquisitions during late 2015 and during 2016.

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The following table shows the components of the non-compensation expenses—fixed, for the nine months endedSeptember 30, 2016 and 2015:

	Nine Months Ended September 30,				Period-to-Period
	2016		2015		$ Change			% Change
	(dollars in thousands)
Non-compensation expenses—fixed:
Communications	$	13,275	$	10,310	$	2,965		29	%
Professional, advisory and other fees	12,211		12,934		(723		)	(6	)%
Occupancy and equipment	22,109		19,544		2,565			13	%
Depreciation and amortization	8,404		6,572		1,832			28	%
Service fees	6,270		5,313		957			18	%
Expenses from equity investments	11,419		11,646		(227		)	(2	)%
Other	8,901		9,724		(823		)	(8	)%
Total	$	82,589	$	76,043	$	6,546		9	%

Non-compensation Expenses—Variable.    Variable non-compensation expenses, included within non-interest expenses, which primarily are comprised of expenses which are incurred as a direct result of the processing and soliciting of revenue generating activities, increased $7.7 million to $44.7 million for the nine months endedSeptember 30, 2016 compared with $37.0 millionin the prior year period. The increase is primarily related to higher floor brokerage and trade execution costs, due to higher brokerage revenue, and increased marketing and business development expenses, some of which is related to acquisitions during late 2015 and during 2016.

The following table shows the components of the non-compensation expenses—variable, for the nine months endedSeptember 30, 2016 and 2015:

	Nine Months Ended September 30,				Period-to-Period
	2016		2015		$ Change			% Change
	(dollars in thousands)
Non-compensation expenses—Variable:
Floor brokerage and trade execution	$	21,602	$	15,705	$	5,897		38	%
HealthCare Royalty Partners syndication costs	396		396		—			—	%
Expenses related to Luxembourg companies	2,062		2,252		(190		)	(8	)%
Marketing and business development	18,991		16,420		2,571			16	%
Other	1,698		2,195		(497		)	(23	)%
Total	$	44,749	$	36,968	$	7,781		21	%

Reimbursement from Affiliates.    Reimbursements from affiliates, included within non-interest expenses, which relate to the alternative investment segment, decreased$5.1 million to $1.7 million for the nine months endedSeptember 30, 2016 compared with $6.8 million in the prior year period. The decrease is primarily related to a decrease in reimbursements from the activist business.

Interest expense

Interest expense, which primarily relates to debt issued during the first and fourth quarters of 2014, increased$0.5 million to $12.9 million for the nine months endedSeptember 30, 2016 compared with $12.4 million in the prior year period.

Non-Controlling Interest

Income (loss) attributable to redeemable non-controlling interests increased by $0.5 million to $6.6 million for the nine months endedSeptember 30, 2016 compared with $6.1 million in the prior year period. The increase is primarily related to an increase in income allocable to partners due to new partnership agreements entered into during 2015 and early 2016. Non-Controlling interest represents the portion of the net income or loss attributable to certain non-wholly owned subsidiaries that is allocated to our partners in those subsidiaries.

Liquidity and Capital Resources

We continually monitor our liquidity position. The working capital needs of the Company's business have been met through current levels of equity capital, current cash and cash equivalents, and anticipated cash generated from our operating activities, including management fees, incentive income, returns on the Company's own capital, investment banking fees and

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brokerage commissions. The Company expects that its primary working capital liquidity needs over the next twelve months will be:

• pay our operating expenses, primarily consisting of compensation and benefits, interest on debt and other general and administrative expenses; and

• provide capital to facilitate the growth of our existing business.

Based on our historical results, management's experience, our current business strategy and current assets under management, the Company believes that its existing cash resources will be sufficient to meet its anticipated working capital and capital expenditure requirements for at least the next twelve months. Our cash reserves include cash, cash equivalents and assets readily convertible into cash such as our securities held in inventory. Securities inventories are stated at fair value and are generally readily marketable. As of September 30, 2016, we had cash and cash equivalents of $76.9 million and net liquid investment assets of $398.1 million. Cash and cash equivalents and short-term investments held by foreign subsidiaries as of September 30, 2016 and December 31, 2015 were $7.1 million and $53.8 million, respectively. The Company intends to permanently reinvest the capital and accumulated earnings of its foreign subsidiaries in the respective subsidiary, but remits the current earnings of its foreign subsidiaries to the United States to the extent permissible under local regulatory rules. The undistributed earnings of the Company’s foreign subsidiaries totaled$1.1 million and $1.0 million as of September 30, 2016 and December 31, 2015, respectively, and the tax liability that would arise if these earnings were remitted to the United States would be approximately$0.2 million and $0.1 million, respectively.

The timing of cash bonus payments to our employees may significantly affect our cash position and liquidity from period to period. While our employees are generally paid salaries semi-monthly during the year, cash bonus payments, which can make up a significant portion of total compensation, are generally paid once a year by March 15th.

As of September 30, 2016, the Company had unfunded commitments of$7.4 millionpertaining to capital commitments infourreal estate investments held by the Company, all of which pertain to related party investments. Such commitments can be called at any time, subject to advance notice. The Company, as a limited partner of the HealthCare Royalty Partners funds and also as a member of HealthCare Royalty Partners General Partners, has committed to invest $45.8 millionin the Healthcare Royalty Partners funds which are managed by Healthcare Royalty Management. This commitment is expected to be called over atwo tofive year period. The Company will make its pro-rata investment in the HealthCare Royalty Partners funds along with the other limited partners. ThroughSeptember 30, 2016, the Company has funded$37.9 milliontowards these commitments.As of September 30, 2016, the Company had an unfunded commitment to Eclipse Ventures Fund I, L.P. (formerly Formation8 Partners Hardware Fund I, L.P.) of$0.9 million. The remaining capital commitment is expected to be called over aoneyear period. As of September 30, 2016, the Company had an unfunded commitment to Lagunita Biosciences, LLC of$3.5 million. The remaining capital commitment is expected to be called over a three-year period.As of September 30, 2016, the Company had an unfunded commitment to Eclipse Fund II, L.P. of$1.0 million. The remaining capital commitment is expected to be called over aneight year period. As of September 30, 2016, the Company had an unfunded commitment to Eclipse Continuity Fund I, L.P. of $0.9 million. The remaining capital commitment is expected to be called over aneight year period.

Due to the nature of the securities business and our role as a market-maker and execution agent, the amount of our cash and short-term investments, as well as operating cash flow, may vary considerably due to a number of factors, including the dollar value of our positions as principal, whether we are net buyers or sellers of securities, the dollar volume of executions by our customers and clearing house requirements, among others. Certain regulatory requirements constrain the use of a portion of our liquid assets for financing, investing or operating activities. Similarly, due to the nature of our business lines, the capital necessary to maintain current operations and our current funding needs subject our cash and cash equivalents to different requirements and uses.

Revolver

On July 31, 2015, the Company entered into a$25.0 million364day revolving unsecured credit facility with multiple financial institutions primarily for working capital management. On July 29, 2016, the Company amended its credit facility to, among other things, extend the existing stated maturity thereof from August 3, 2016 to September 29, 2016, reduce the aggregate revolving commitments thereunder from$25 million to $15 millionand make future draws on the revolver during the extension period subject to the sole discretion of the lenders thereunder. In connection with the amendment, the Company repaid all outstanding amounts under the credit facility. The revolving unsecured credit facility terminated in accordance with its terms on September 29, 2016.

Preferred Stock and Purchase of Capped Call Option

On May 19, 2015, the Company completed its offering of120,750shares of the Company's5.625%Series A cumulative perpetual convertible preferred stock ("Series A Convertible Preferred Stock") that provided$117.2 millionof proceeds, net of underwriting fees and issuance costs of$3.6 million. Each share of the Series A Convertible Preferred Stock is entitled to

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dividends at a rate of5.625%per annumwhich will be payable, when and if declared by the board of directors of the Company, quarterly, in arrears, on February 15, May 15, August 15 and November 15 of each year. The Company may, at its option, pay dividends in cash, common stock or a combination thereof.

Each share of Series A Convertible Preferred Stock is non-voting and has a liquidity preference over the Company's Class A common stock and ranks senior to all classes or series of the Company's Class A common stock, but junior to all of the Company's existing and future indebtedness with respect to divided rights and rights upon the Company's involuntary liquidation, dissolution or winding down.

Each share of Series A Convertible Preferred Stock is convertible, at the option of the holder, into a number of shares of our Class A common stock equal to the liquidation preference of$1,000divided by the conversion rate. The initial conversion rate is152.2476shares(which equates to$6.57 per share)of the Company's Class A common stock for each share of the Series A Convertible Preferred Stock. At any time on or after May 20, 2020, the Company may elect to convert all outstanding shares of the Series A Convertible Preferred Stock into shares of the Company’s Class A common stock, cash or a combination thereof, at the Company’s election, in each case, based on the then-applicable conversion rate, if the last reported sale price of the Company’s Class A common stock equals or exceeds 150%of the then-current conversion price on at least20trading days (whether or not consecutive) during the period of30consecutive trading days (including on the last trading day of such period) immediately prior to such election. At the time of conversion, the conversion rate may be adjusted based on certain events including but not limited to the issuance of cash dividends or Class A common stock as a dividends to the Company's Class A common shareholders or a share split or combination.

In connection with the issuance and sale of the Series A Convertible Preferred Stock, the Company entered into a privately negotiated capped call option transaction (the “Capped Call Option Transaction”) with Nomura Global Financial Products Inc. (the “option counterparty”) for$15.9 million. The Capped Call Option Transaction is expected generally to reduce the potential dilution to the Company’s Class A common stock (if the Company elects to convert to common shares) and/or offset any cash payments that the Company is required to make upon conversion of any Series A Convertible Preferred Stock. The Capped Call Option Transaction has an initial effective strike price of$6.57 per share, which matches the initial conversion price of the Series A Convertible Preferred Stock, and a cap price of$8.39per share. However, to the extent that the market price of Class A common stock, as measured under the terms of the Capped Call Option Transaction, exceeds the cap price thereof, there would nevertheless be dilution and/or such cash payments would not be offset. As the Capped Call Option Transaction is a free standing derivative that is indexed to the Company's own stock price and the Company controls if it is settled in cash or stock it qualifies for equity classification as a reduction to additional paid in capital.

The Company may also incur additional indebtedness or raise additional capital under certain circumstances to respond to market opportunities and challenges. Current market conditions may make it more difficult or costly to borrow additional funds or raise additional capital.

Regulation

As registered broker-dealers, Cowen and Company, ATM Execution and Cowen Prime are subject to the SEC's Uniform Net Capital Rule 15c3-1 (the “Rule”), which requires the maintenance of minimum net capital. Under the alternative method permitted by the Rule, Cowen and Company's minimum net capital requirement, as defined, is$1.0 million. Under the alternative method ATM Execution and Cowen Prime are required to maintain minimum net capital, as defined, equal to$250,000. The broker-dealers are not permitted to withdraw equity if certain minimum net capital requirements are not met. As of September 30, 2016, Cowen and Company had total net capital of approximately$78.3 million, which was approximately $77.3 million in excess of its minimum net capital requirement of$1.0 million. As of September 30, 2016, ATM Execution had total net capital of approximately$2.7 million, which was approximately$2.4 millionin excess of its minimum net capital requirement of$250,000. As of September 30, 2016, Cowen Prime had total net capital of approximately$11.7 million, which was approximately $11.4 million in excess of its minimum net capital requirement of $250,000.

Cowen and Company, ATM Execution and Cowen Prime claim exemption from the provisions of Rule 15c3-3 under theExchange Actas their activities are limited to those set forth in the conditions for exemption appearing in paragraph (k)(2)(ii) of the Rule.

Proprietary accounts of broker-dealers (“PAB”) held at the clearing broker are considered allowable assets for net capital purposes, pursuant to agreements between Cowen and Company, ATM Execution and Cowen Prime and the clearing brokers, which require, among other things, that the clearing brokers perform computations for PAB and segregate certain balances on behalf of Cowen and Company, ATM Execution and Cowen Prime, if applicable.

Ramius UK Ltd. ("Ramius UK") and Cowen International Limited ("CIL")are subject to the capital requirements of the Financial Conduct Authority (“FCA”) of the UK. Financial Resources, as defined, must exceed the requirement of the FCA. As of September 30, 2016, Ramius UK's Financial Resources of$0.24 millionexceeded its minimum requirement of$0.06 million

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by $0.18 million. As of September 30, 2016, CIL's Financial Resources of$3.9 millionexceeded its minimum requirement of$1.9 million by $2.0 million.

Cowen’s Luxembourg reinsurance companies, Vianden RCG Re SCA (“Vianden”) and Hollenfels, are required to maintain a solvency capital ratio as calculated by relevant European Commission directives and local regulatory rules in Luxembourg. Each company’s solvency capital ratio as ofSeptember 30, 2016was in excess of this minimum requirement.

Based on minimum capital and surplus requirements pursuant to the laws of the state of New York that apply to captive insurance companies, RCG Insurance Company, Cowen’s captive insurance company incorporated and licensed in the state of New York, was required to maintain capital and surplus of approximately$0.3 millionas ofSeptember 30, 2016. RCG Insurance Company’s capital and surplus as of September 30, 2016 totaled approximately $22.1 million.

Cash Flows Analysis

The Company's primary sources of cash are derived from its operating activities, fees and realized returns on its own invested capital. The Company's primary uses of cash include compensation and general and administrative expenses.

Operating Activities.    Net cash used in operating activities of $339.4 million for the nine months endedSeptember 30, 2016 was primarily related to purchases of other investments and cash used to pay for year end bonuses. Net cash used in operating activities of $178.5 million for the nine months ended September 30, 2015 was primarily related to purchases of securities and other investments and a reduction of compensation payable partially offset by a decrease in cash held at other brokers.

Investing Activities.    Net cash provided by investing activities of $41.9 million for the nine months endedSeptember 30, 2016 was primarily related to repayment of certain loans made for investing purposes and sales of other investments offset partially by the purchases of other investments and fixed assets. Net cash provided by investing activities of $7.0 million for the nine months ended September 30, 2015 was primarily related to the proceeds from sales of other investments offset partially by purchases of business.

Financing Activities.    Net cash provided by financing activities for the nine months endedSeptember 30, 2016 of $216.0 million was primarily related to contributions from non-controlling interests in Consolidated Funds. Net cash provided by financing activities for the nine months ended September 30, 2015 of $134.9 million was primarily related to the proceeds from issuance of preferred stock and contributions from non-controlling interests in Consolidated Funds offset partially by repurchase of shares of our common stock.

Debt

Convertible Debt

On March 10, 2014, the Company issued$149.5 million of 3.0%cash convertible senior notes ("Convertible Notes"). The Convertible Notes are due on March 15, 2019 unless earlier repurchased by the Company or converted by the holder into cash in accordance with their terms prior to such date. The interest on the Convertible Notes is payable semi-annually on March 15 and September 15 of each year. The Convertible Notes are senior unsecured obligations and rank senior in right of payments to other obligations. The Convertible Notes may be converted into cash, upon the occurrence of certain events, whereby a holder will receive, per$1,000principal amount of notes being converted, an amount equal to the sum of principal amount outstanding and the conversion amount based on the current conversion price (the "Conversion Option"). The Convertible Notes were issued with an initial conversion price of $5.33per share.

The Company recorded interest expense of$1.1 million and $1.1 million for the three months ended September 30, 2016and2015 and $3.4 million and $3.4 millionfor thenine months endedSeptember 30, 2016and2015, respectively.The initial unamortized discount on the Convertible Notes was$35.7 millionand is shown net in convertible debt in the accompanying condensed consolidated statements of financial condition.Amortization on the discount, included within interest expense in the accompanying condensed consolidated statements of operations is$1.7 million and $1.6 million for the three months ended September 30, 2016and2015 and $5.1 millionand$4.7 million for the nine months endedSeptember 30, 2016 and 2015, respectively, based on an effective interest rate of 8.89%. The Company capitalized the debt issuance costs in the amount of$3.7 million, which is a direct deduction from the carrying value of the debt, and will be amortized over the life of the Convertible Notes.

Of the net proceeds from the sale of the Convertible Notes, approximately$20.5 millionwas applied to pay the net cost of a cash convertible note economic hedge and warrant transaction which increases the effective conversion price to$7.18 (See Note 5 of the Company's condensed consolidated financial statements), and approximately$0.3 millionwas applied to repurchase shares of Cowen Class A common stock. The remainder of the net proceeds is being used for general corporate purposes.

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Note Payable

On October 10, 2014 the Company completed its public offering of$63.3 millionaggregate principal amount of8.25%senior notes due on October 15, 2021 ("2021 Notes").Interest on the 2021 Notes is payable quarterly in arrears on January 15, April 15, July 15 and October 15, commencing on January 15, 2015.The Company recorded interest expense of$1.3 million and $1.3 million for the three months ended September 30, 2016and2015 and $3.9 million and $3.9 millionfor thenine months endedSeptember 30, 2016. The Company capitalized debt issuance costs of approximately$2.9 millionwhich is a direct deduction from the carrying value of the debt and will be amortized over the life of the 2021 Notes.

The 2021 Notes were issued pursuant to an Indenture, dated as of October 10, 2014 (the “Senior Indenture”), by and among the Company and The Bank of New York Mellon, as trustee. The Senior Indenture contains covenants that, among other things, limit (subject to certain exceptions) the Company’s ability and the ability of the Company’s Restricted Subsidiaries (as defined in the Senior Indenture) to: (1) incur debt (including certain preferred stock), if the incurrence of such indebtedness would cause the Company’s consolidated fixed charge coverage ratio, as defined in the Senior Indenture, to fall below 2.0 to 1.0, (2) pay dividends or make distributions on its capital stock, or purchase, redeem or otherwise acquire its capital stock, and (3) grant liens securing indebtedness of the Company without securing the 2021 Notes equally and ratably. If certain conditions are met, certain of these covenants may be suspended. As of September 30, 2016 the Company’s consolidated fixed charge coverage ratio was above the minimum of 2.0 to 1.0 required by the Senior Indenture.

Other Notes Payable

During January 2016, the Company borrowed$2.0 millionto fund insurance premium payments. This note has an effective interest rate of 1.38%and is due on December 31, 2016, with monthly payment requirements of$0.2 million. As of September 30, 2016, the outstanding balance on this note payable was$0.4 million. Interest expense for thethree and nine months endedSeptember 30, 2016was insignificant.

During the second quarter of 2016, the Company entered into financing for two of its aircraft and acquired additional debt when four other aircraft were acquired (See Note 2). The aircraft financing, net of debt costs, is recorded in notes payable and short-term borrowings in the accompanying condensed consolidated statements of financial condition. The debt maturities ranged from February 2017 to May 2021 and interest rates ranged from4.80%to7.25%. As of September 30, 2016, the remaining balance on the aircraft financing agreements was$14.8 million. Interest expense was$0.2 million and $0.5 million for the three and nine months endedSeptember 30, 2016, respectively.

Revolver

On July 31, 2015, the Company entered into a$25.0 million364day revolving unsecured credit facility with multiple financial institutions primarily for working capital management. On July 29, 2016, the Company amended its credit facility to, among other things, extend the existing stated maturity thereof from August 3, 2016 to September 29, 2016, reduce the aggregate revolving commitments thereunder from$25 million to $15 millionand make future draws on the revolver during the extension period subject to the sole discretion of the lenders thereunder. In connection with the amendment, the Company repaid all outstanding amounts under the credit facility. The revolving unsecured credit facility terminated in accordance with its terms on September 29, 2016.

Capital Lease Obligations

The Company entered into several capital leases for computer equipment during the fourth quarter of 2010 and one in January 2014. These leases amounted to$7.6 millionand are recorded in fixed assets and as capital lease obligations, which are included in short-term borrowings and other debt in the accompanying condensed consolidated statements of financial condition, and have lease terms that range from48 to 60months and interest rates that range from 0.60% to 6.03%. As ofSeptember 30, 2016, the remaining balance on these capital leases was$2.0 million. Interest expense was $0.1 million and $0.1 million for the three months ended September 30, 2016and2015 and $0.1 million and $0.1 million for the nine months endedSeptember 30, 2016 and 2015, respectively.

Letters of Credit

As of September 30, 2016, the Company has the following nineirrevocable letters of credit, related to leased office space, for which there is cash collateral pledged, which the Company pays a fee on the stated amount of the letter of credit. The Company also has a letter of credit, in the amount of$5.5 million, due March 2017, for which cash is pledged as collateral under a reinsurance agreement.

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Location	Amount		Maturity
	(dollars in thousands)
New York	$	355	May 2017
New York	$	70	May 2017
New York	$	695	October 2016
New York	$	3,373	October 2016
New York	$	1,600	November 2016
San Francisco	$	710	January 2017
Connecticut	$	65	January 2017
New York	$	1,000	February 2017
Boston	$	382	March 2017

To the extent any letter of credit is drawn upon, interest will be assessed at the prime commercial lending rate. As of September 30, 2016 and December 31, 2015, there were no amounts due related to these letters of credit.

Contractual Obligations

The following tables summarize the Company's contractual cash obligations as of September 30, 2016:

	Total		< 1 Year		1-3 Years		4-5 Years		More Than 5 Years
	(dollars in thousands)
Equipment Leases, Service Payments and Facility Leases
Real Estate	$	99,976	$	4,690	$	48,222	$	29,913	$	17,151
Service Payments	28,149		4,703		23,283		163		—
Equipment leases	2,664		291		2,371		2		—
Aircraft	3,569		315		3,254		—		—
Total	134,358		9,999		77,130		30,078		17,151
Debt
Convertible Debt	160,713		—		160,713		—		—
Note Payable	90,644		1,304		15,654		10,436		63,250
Other Notes Payable	17,901		1,221		10,152		6,528		—
Total	$	269,258	$	2,525	$	186,519	$	16,964	$	63,250

Clawback obligations

For financial reporting purposes, the general partners of a real estate fund have recorded a liability for potential clawback obligations to the limited partners, due to changes in the unrealized value of the fund's remaining investments and where the fund's general partner has previously received carried interest distributions.

The clawback liability, however, is not realized until the end of the fund's life.The life of the real estate funds with a potential clawback obligation is currently in a winding-up phase whereby the remaining assets of the fund are being liquidated as promptly as possible so as to maximize value, however a final date for liquidation has not been set.

The fund is currently winding-down as of September 30, 2016 and the clawback obligations were $6.2 million (see Note 5 to the Company's condensed consolidated financial statements).

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Minimum payments for all debt outstanding

Annual scheduled maturities of debt and minimum payments for all debt outstanding as of September 30, 2016, is as follows:

	Convertible Debt			Note Payable			Other Note Payable			Capital Lease Obligation
	(dollars in thousands)
2016	$	—		$	1,304		$	1,221		$	235
2017	4,485			5,218			4,225			938
2018	4,485			5,218			2,225			938
2019	151,743			5,218			3,702			78
2020	—			5,218			1,805			—
Thereafter	—			68,468			4,723			—
Subtotal	160,713			90,644			17,901			2,189
Less: Amount representing interest (a)	(32,648		)	(29,499		)	(2,735		)	(143		)
Total	$	128,065		$	61,145		$	15,166		$	2,046

(a) Amount necessary to reduce net minimum payments to present value calculated at the Company's implicit rate at inception. This amount also includes the unamortized discount on the convertible debt.

Off-Balance Sheet Arrangements

We have no material off-balance sheet arrangements as of September 30, 2016. However, through indemnification provisions in our clearing agreement, customer activities may expose us to off-balance-sheet credit risk. Pursuant to the clearing agreement, we are required to reimburse our clearing broker, without limit, for any losses incurred due to a counterparty's failure to satisfy its contractual obligations. However, these transactions are collateralized by the underlying security, thereby reducing the associated risk to changes in the market value of the security through the settlement date.

Cowen and Company, Cowen Prime and ATM Execution are members of various securities exchanges. Under the standard membership agreement, members are required to guarantee the performance of other members and, accordingly, if another member becomes unable to satisfy its obligations to the exchange, all other members would be required to meet the shortfall. The Company's liability under these arrangements is not quantifiable. Accordingly, no contingent liability is carried in the accompanying condensed consolidated statements of financial condition for these arrangements.

Critical Accounting Policies and Estimates

Critical accounting policies are those that require the Company to make significant judgments, estimates or assumptions that affect amounts reported in its condensed consolidated financial statements or the notes thereto. The Company bases its judgments, estimates and assumptions on current facts, historical experience and various other factors that the Company believes to be reasonable and prudent. Actual results may differ materially from these estimates.

The following is a summary of what the Company believes to be its most critical accounting policies and estimates.

Consolidation

These condensed consolidated financial statements include the accounts of the Company, its subsidiaries, and entities in which the Company has a controlling financial interest, including the Consolidated Funds, in which the Company has a controlling general partner interest. All material intercompany transactions and balances have been eliminated in consolidation. The Company’s funds are not subject to these consolidation provisions with respect to their investments pursuant to their specialized accounting.

The Company’s condensed consolidated financial statements reflect the assets, liabilities, revenues, expenses and cash flows of the Consolidated Funds on a gross basis. The management fees and incentive income earned by the Company from the Consolidated Funds were eliminated in consolidation; however, the Company’s allocated share of net income from these funds was increased by the amount of this eliminated income. Hence, the consolidation of these funds had no net effect on the Company’s net earnings.

The Company consolidates all entities that it controls through a majority voting interest or otherwise, including those funds in which the Company either directly or indirectly has a controlling financial interest. In addition, the Company consolidates all variable interest entities for which it is the primary beneficiary.

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The Company adopted the new accounting pronouncement regarding consolidation accounting using the modified retrospective method with an effective adoption date of January 1, 2016. The modified retrospective method did not require the restatement of prior year periods. The adoption of the new accounting pronouncement also resulted in a reclassification of certain entities which were previously considered voting interest entities and are considered variable interest entities.

In accordance with these standards, the Company presently consolidatessixfunds for which it acts as the general partner and investment manager. As of September 30, 2016 the Company consolidated the following funds: Ramius Enterprise LP (“Enterprise LP”), Ramius Merger Fund LLC (the "Merger Fund"), Cowen Private Investments LP ("Cowen Private"), Ramius Archview Credit and Distressed Fund ("Archview Feeder Fund"), Ramius Archview Credit and Distressed Master Fund ("Archview Master Fund"), (as of May 1, 2016) Caerus Select Fund LP ("Caerus LP") and (as of July 11, 2016) Ramius Merger Arbitrage UCITS Fund ("UCITS Fund") (collectively the "Consolidated Funds").

The Company determines whether it has a controlling financial interest in an entity by first evaluating whether the entity is a voting operating entity ("VOE") or a variable interest entity ("VIE") under US GAAP.

Voting Operating Entities—VOEs are entities in which (i) the total equity investment at risk is sufficient to enable the entity to finance its activities independently and (ii) the equity holders at risk have the obligation to absorb losses, the right to receive residual returns and the right to direct the activities of the entity that most significantly impact the entity's economic performance.

Under US GAAP, the usual condition for a controlling financial interest in a VOE is ownership of a majority voting interest. Accordingly, the Company consolidates all VOEs in which it owns a majority of the entity's voting shares or units.

In connection with the adoption, the Company reevaluated all of its investment products for consolidation. As of January 1, 2016, the Company deconsolidated Quadratic Fund LLC ("Quadratic LLC") as the Company did not hold a significant voting interest in the fund. The adoption of the new accounting pronouncement also resulted in a reclassification of certain entities for which the Company was presumed to have control and will now be VIEs.

Variable Interest Entities—VIEs are entities that lack one or more of the characteristics of a VOE. In accordance with US GAAP, an enterprise must consolidate all VIEs of which it is the primary beneficiary. Under the US GAAP consolidation model for VIEs, an enterprise that (1) has the power to direct the activities of a VIE that most significantly impacts the VIE's economic performance, and (2) has an obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE, is considered to be the primary beneficiary of the VIE and thus is required to consolidate it.

The Company reconsiders whether it is the primary beneficiary of a VIE by performing a periodic qualitative and/or quantitative analysis of the VIE that includes a review of, among other things, its capital structure, contractual agreements between the Company and the VIE, the economic interests that create or absorb variability, related party relationships and the design of the VIE.

In the ordinary course of business, the Company also sponsors various other entities that it has determined to be VIEs. These VIEs are primarily funds and real estate entities for which the Company serves as the general partner, managing member and/or investment manager with decision-making rights.

The Company does not consolidate certain entities that are VIEs as it has concluded that it is not the primary beneficiary in each instance. Fund investors are entitled to all of the economics of these VIEs with the exception of the management fee and incentive income, if any, earned by the Company. The Company's involvement with funds and real estate entities that are unconsolidated VIEs is limited to providing investment management services in exchange for management fees and incentive income. Although the Company may advance amounts and pay certain expenses on behalf of the funds and real estate entities that it considers to be VIEs, it does not provide, nor is it required to provide, any type of substantive financial support to these entities outside of regular investment management services.

Equity Method Investments—For operating entities over which the Company exercises significant influence but which do not meet the requirements for consolidation as outlined above, the Company uses the equity method of accounting. The Company's investments in equity method investees are recorded in other investments in the accompanying condensed consolidated statements of financial condition. The Company's share of earnings or losses from equity method investees is included in net gains (losses) on securities, derivatives and other investments in the accompanying condensed consolidated statements of operations.

The Company evaluates its equity method investments for impairment whenever events or changes in circumstances indicate that the carrying amounts of such investments may not be recoverable. The difference between the carrying value of the equity method investment and its estimated fair value is recognized as an impairment charge when the loss in value is deemed other than temporary.

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Other—If the Company does not consolidate an entity, apply the equity method of accounting or account for an investment under the cost method, the Company accounts for such entities (primarily, all securities of such entity which are bought and held principally for the purpose of selling them in the near term as trading securities) in accordance with US GAAP, at fair value with unrealized gains (losses) resulting from changes in fair value reflected within net gains (losses) on securities, derivatives and other investments in the accompanying condensed consolidated statements of operations.

Retention of Specialized Accounting—The Consolidated Funds and certain other consolidated companies are investment companies and apply specialized industry accounting for investment companies. The Company has retained this specialized accounting for these funds pursuant to US GAAP. The Company reports its investments on the condensed consolidated statements of financial condition at their estimated fair value, with unrealized gains (losses) resulting from changes in fair value reflected within net realized and unrealized gains (losses) on investments and other transactions. Accordingly, the accompanying condensed consolidated financial statements reflect different accounting policies for investments depending on whether or not they are held through a consolidated investment company. In addition, the Company's broker-dealer subsidiariesapply the specialized industry accounting for brokers and dealers in securities also prescribed under US GAAP. The Company also retains specialized accounting in consolidation.

Valuation of investments and derivative contracts

US GAAP establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (level 1 measurements) and the lowest priority to unobservable inputs (level 3 measurements). Thethreelevels of the fair value hierarchy are as follows:

Level 1 Inputs that reflect unadjusted quoted prices in active markets for identical assets or liabilities that the Company has

the ability to access at the measurement date;

Level 2     Inputs other than quoted prices that are observable for the asset or liability either directly or indirectly, including

inputs in markets that are not considered to be active; and

Level 3 Fair value is determined based on pricing inputs that are unobservable and includes situations where there is little,

if any, market activity for the asset or liability. The determination of fair value for assets and liabilities in this

category requires significant management judgment or estimation.

Inputs are used in applying the various valuation techniques and broadly refer to the assumptions that market participants use to make valuation decisions, including assumptions about risk. Inputs may include price information, volatility statistics, specific and broad credit data, liquidity statistics, and other factors. A financial instrument's level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. However, the determination of what constitutes “observable” requires significant judgment by the Company. The Company considers observable data to be that market data which is readily available, regularly distributed or updated, reliable and verifiable, not proprietary, and provided by independent sources that are actively involved in the relevant market. The categorization of a financial instrument within the hierarchy is based upon the pricing transparency of the instrument and does not necessarily correspond to the Company's perceived risk of that instrument. For additional information regarding the use of unobservable inputs to fair value assets and liabilities see Note 6 in the accompanying condensed Consolidated Financial Statement in Part 1 Item 1.

The Company and its operating subsidiaries act as the manager for the Consolidated Funds. Both the Company and the Consolidated Funds hold certain investments which are valued by the Company, acting as the investment manager. The fair value of these investments is generally estimated based on proprietary models developed by the Company, which include discounted cash flow analysis, public market comparables, and other techniques and may be based, at least in part, on independently sourced market information. The material estimates and assumptions used in these models include the timing and expected amount of cash flows, the appropriateness of discount rates used, and, in some cases, the ability to execute, timing of, and estimated proceeds from expected financings. Significant judgment and estimation goes into the selection of an appropriate valuation methodology as well as the assumptions used in these models, and the timing and actual values realized with respect to investments could be materially different from values derived based on the use of those estimates. The valuation methodologies applied impact the reported value of the Company's investments and the investments held by the Consolidated Funds in the consolidated financial statements. Certain of the Company's investments are relatively illiquid or thinly traded and may not be immediately liquidated on demand if needed. Fair values assigned to these investments may differ significantly from the fair values that would have been used had a ready market for the investments existed and such differences could be material.

The Company primarily uses the “market approach” to value its financial instruments measured at fair value. In determining an instrument's level within the hierarchy, the Company categorizes the Company's financial instruments intothree

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categories: securities, derivative contracts and other investments. To the extent applicable, each of these categories can further be divided between those held long or sold short.

The Company has the option to measure certain financial assets and financial liabilities at fair value with changes in fair value recognized in earnings each period. The election is made on an instrument by instrument basis at initial recognition of an asset or liability or upon an event that gives rise to a new basis of accounting for that instrument.  The Company has elected the fair value option for certain of its investments held by its operating companies.  This option has been elected because the Company believes that it is consistent with the manner in which the business is managed as well as the way that financial instruments in other parts of the business are recorded.

Securities— Securities with values based on quoted market prices in active markets for identical assets are classified within level 1 of the fair value hierarchy. These securities include active listed equities, certain U.S. government and sovereign obligations, ETF's, mutual funds and certain money market securities. The Company does not adjust the quoted price for such instruments, even in situations where the Company holds a large position and a sale could reasonably impact the quoted price.

Certain positions for which trading activity may not be readily visible, consisting primarily of convertible debt, corporate debt and loans and restricted equities, are stated at fair value and classified within level 2 of the fair value hierarchy. The estimated fair values assigned by management are determined in good faith and are based on available information considering, trading activity, broker quotes, quotations provided by published pricing services, counterparties and other market participants, and pricing models using quoted inputs, and do not necessarily represent the amounts which might ultimately be realized. As level 2 investments include positions that are not always traded in active markets and/or are subject to transfer restrictions, valuations may be adjusted to reflect illiquidity and/or non-transferability.

Derivative contracts—Derivative contracts can be exchange-traded or privately negotiated over-the-counter (“OTC”). Exchange-traded derivatives, such as futures contracts and exchange-traded option contracts, are typically classified within level 1 or level 2 of the fair value hierarchy depending on whether or not they are deemed to be actively traded. OTC derivatives, such as generic forwards, swaps and options, have inputs which can generally be corroborated by market data and are therefore classified within level 2. OTC derivatives, such as swaps and options where market data is not readily available or observable are classified as level 3.

Other investments—Other investments consist primarily of portfolio funds, real estate investments and equity method investments, which are valued as follows:

i. Portfolio funds—Portfolio funds (“Portfolio Funds”) include interests in funds and investment companies which may be managed by the Company or its affiliates. The Company follows US GAAP regarding fair value measurements and disclosures relating to investments in certain entities that calculate net asset value (“NAV”) per share (or its equivalent). The guidance permits, as a practical expedient, an entity holding investments in certain entities that either are investment companies as defined by the AICPA Audit and Accounting Guide, Investment Companies, or have attributes similar to an investment company, and calculate net asset value per share or its equivalent for which the fair value is not readily determinable, to measure the fair value of such investments on the basis of that NAV per share, or its equivalent, without adjustment.In accordance with US GAAP, investments which are valued using NAV per share as a practical expedient are not categorized within the fair value hierarchy.

ii. Real estate investments—Real estate debt and equity investments are valued at fair value. The fair value of real estate investments are estimated based on the price that would be received to sell an asset in an orderly transaction between marketplace participants at the measurement date. Real estate investments without a public market are valued based on assumptions and valuation techniques used by the Company. Such valuation techniques may include discounted cash flow analysis, prevailing market capitalization rates or earnings multiples applied to earnings from the investment, analysis of recent comparable sales transactions, actual sale negotiations and bona fide purchase offers received from third parties, consideration of the amount that currently would be required to replace the asset, as adjusted for obsolescence, as well as independent external appraisals. In general, the Company considers several valuation techniques when measuring the fair value of a real estate investment. However, in certain circumstances, a single valuation technique may be appropriate. Real estate investments are reviewed on a quarterly basis by the Company for significant changes at the property level or a significant change in the overall market which would impact the value of the real estate investment resulting in unrealized appreciation or depreciation.

Real estate and capital markets are cyclical in nature. Property and investment values are affected by, among other things, the availability of capital, occupancy rates, rental rates and interest and inflation rates. In addition, the Company invests in real estate and real estate related investments for which no liquid market exists. The market prices for such investments may be volatile and may not be readily ascertainable. Amounts ultimately realized by the Company from investments sold may differ from the fair values presented, and the differences could be material.

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The Company's real estate investments are typically categorized as level 3 investments within the fair value hierarchy as management uses significant unobservable inputs in determining their estimated fair value.

Revenue recognition

The Company's principal sources of revenue are derived from two segments: an alternative investment segment and a broker-dealer segment, as more fully described below.

Our alternative investment segment generates revenue through three principal sources: management fees, incentive income and investment income from the Company's own capital.

Our broker-dealer segment generates revenue through three principal sources: investment banking, brokerage and investment income.

Management fees

The Company earns management fees from affiliated funds and certain managed accounts that it serves as the investment manager based on assets under management. The actual management fees received vary depending on distribution fees or fee splits paid to third parties either in connection with raising the assets or structuring the investment. Management fees are generally paid on a quarterly basis at the beginning of each quarter in arrears and are prorated for capital inflows and redemptions. While some investors may have separately negotiated fees, in general the management fees are as follows:

• Hedge Funds. Management fees for the Company's hedge funds are generally charged at an annual rate of up to2%of assets under management or notional trading level. Management fees are generally calculated monthly based on assets under management at the end of each month before incentive income.

• Registered Funds.Management fees for the Company’s registered funds (State Street/Ramius Managed Futures Strategy Fund and Ramius Archview Credit and Distressed Fund) are generally charged at an annual rate of up to 1.50%of assets under management.

• Alternative Solutions. Management fees for the Alternative Solutions business are generally charged at an annual rate of up to2%of assets under management or notional trading level. Management fees are generally calculated monthly based on assets under management at the end of each month before incentive income or based on assets under management at the beginning of the month. Management fees earned from the Alternative Solutions business are based and initially calculated on estimated net asset values and actual fees ultimately earned could be impacted to the extent of any changes in these estimates.

• Real Estate. Management fees from the Company's real estate business are generally charged by their general partners at an annual rate from0.25% to 1.50%of total capital commitments during the investment period and of invested capital or net asset value of the applicable fund after the investment period has ended. Management fees are typically paid to the general partners on a quarterly basis, at the beginning of the quarter in arrears, and are prorated for changes in capital commitments throughout the investment period and invested capital after the investment period. The general partners of the funds on the RCG Longview platform are owned jointly by the Company and third parties. Accordingly, the management fees (in addition to incentive income and investment income) generated by these real estate funds are split between the Company and the other general partners.Pursuant to US GAAP, these fees and other income received by the general partners that are accounted for under the equity method of accounting and are reflected under net gains (losses) on securities, derivatives and other investments in the accompanying condensed consolidated statements of operations.

• HealthCare Royalty Partners. During the investment period (as defined in the management agreement of the HealthCare Royalty Partners' funds), management fees for the funds and managed accounts advised by HealthCare Royalty Partners are generally charged at an annual rate of up to2%of committed capital. After the investment period, management fees are generally charged at an annual rate of up to 2%of the net asset value of the funds or managed accounts or the aggregate cost basis of the unrealized investments held by the funds. Management fees for the HealthCare Royalty Partners funds are calculated on a quarterly basis.

• Ramius Trading Strategies. Management fees and platform fees for the Company's private commodity trading advisory business are generally charged at an annual rate of up to0.5%. Management and platform fees are generally calculated monthly based on each account's notional trading level at the end of each month.

Incentive income

The Company earns incentive income based on net profits (as defined in the respective investment management agreements) with respect to certain of the Company's funds and managed accounts, allocable for each fiscal year that exceeds

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cumulative unrecovered net losses, if any, that have been carried forward from prior years. For the products we offer, incentive income earned is typically up to20% for hedge funds and up to 10%for alternative solutions products (in certain cases on performance in excess of a benchmark), of the net profits earned for the full year that are attributable to each fee-paying investor. Generally, incentive income on real estate funds is earned after the investor has received a full return of their invested capital, plus a preferred return. However, for certain real estate funds, the Company is entitled to receive incentive fees earlier, provided that the investors have received their preferred return on a current basis or on an investor by investor basis. These funds are generally subject to a potential clawback of these incentive fees upon the liquidation of the fund if the investor has not received a full return of its invested capital plus the preferred return thereon. Incentive income in the HealthCare Royalty Partners funds is generally earned only after investors receive a full return of their capital plus a preferred return.Pursuant to US GAAP, incentive income received by the general partners that are accounted for under the equity method of accounting and are reflected under net gains (losses) on securities, derivatives and other investments in the accompanying condensed consolidated statements of operations.

In periods following a period of a net loss attributable to an investor, the Company generally does not earn incentive income on any future profits attributable to that investor until the accumulated net loss from prior periods is recovered, an arrangement commonly referred to as a “high-water mark.” The Company has elected to record incentive income revenue in accordance with “Method 2” of US GAAP. Under Method 2, the incentive income from the Company's funds and managed accounts for any period is based upon the net profits of those funds and managed accounts at the reporting date. Any incentive income recognized in the accompanying condensed consolidated statement of operations may be subject to future reversal based on subsequent negative performance prior to the conclusion of the fiscal year, when all contingencies have been resolved.

Carried interest in the real estate funds is subject to clawback to the extent that the carried interest actually distributed to date exceeds the amount due to the Company based on cumulative results. As such, the accrual for potential repayment of previously received carried interest, which is a component of accounts payable, accrued expenses and other liabilities, represents all amounts previously distributed to the Company, less an assumed tax liability, that would need to be repaid to certain real estate funds if these funds were to be liquidated based on the current fair value of the underlying funds' investments as of the reporting date. The actual clawback liability does not become realized until the end of a fund's life.

Investment Banking

The Company earns investment banking revenue primarily from fees associated with public and private capital raising transactions and providing strategic advisory services. Investment banking revenues are derived primarily from small and mid-capitalization companies within the Company's Target Sectors.

Investment banking revenue consists of underwriting fees, strategic/financial advisory fees and placement and sales agent fees.

• Underwriting fees. The Company earns underwriting fees in securities offerings in which the Company acts as an underwriter, such as initial public offerings, follow-on equity offerings, debt offerings, and convertible security offerings. Fee revenue relating to underwriting commitments is recorded when all significant items relating to the underwriting process have been completed and the amount of the underwriting revenue has been determined. This generally is the point at which all of the following have occurred: (i) the issuer's registration statement has become effective with the SEC or the other offering documents are finalized; (ii) the Company has made a firm commitment for the purchase of securities from the issuer; and (iii) the Company has been informed of the number of securities that it has been allotted.

When the Company is not the lead manager for an underwriting transaction, management must estimate the Company's share of transaction-related expenses incurred by the lead manager in order to recognize revenue. Transaction-related expenses are deducted from the underwriting fee and therefore reduce the revenue the Company recognizes as co-manager. Such amounts are adjusted to reflect actual expenses in the period in which the Company receives the final settlement, typically within 90 days following the closing of the transaction.

• Strategic/financial advisory fees. The Company's strategic advisory revenues include success fees earned in connection with advising companies, principally in mergers and acquisitions and restructuring transactions. The Company also earns fees for related advisory work such as providing fairness opinions. The Company records strategic advisory revenues when the services for the transactions are completed under the terms of each assignment or engagement and collection is reasonably assured. Expenses associated with such transactions are deferred until the related revenue is recognized or the engagement is otherwise concluded.

• Placement and sales agent fees. The Company earns agency placement fees and sales agent commissions in non-underwritten transactions such as private placements of loans and debt and equity securities, including, private investment in public equity transactions (“PIPEs”), and as sales agent in at-the-market offerings of equity securities.

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The Company records placement revenues (which may be in cash and/or securities) when the services for the transactions are completed under the terms of each assignment or engagement and collection is reasonably assured. The Company records sales agent commissions on a trade date basis. Expenses associated with such transactions are deferred until the related revenue is recognized or the engagement is otherwise concluded.

Brokerage

Brokerage revenue consists of commissions, principal transactions and equity research fees.

• Commissions. Commission revenue includes fees from executing client transactions. These fees are recognized on a trade date basis. The Company permits institutional customers to allocate a portion of their commissions to pay for research products and other services provided by third parties. The amounts allocated for those purposes are commonly referred to as soft dollar arrangements. Commissions on soft dollar brokerage are recorded net of the related expenditures on an accrual basis.

• Principal Transactions. Principal transactions revenue includes net trading gains and losses from the Company's market-making activities in over-the-counter equity securities, trading of convertible securities, and trading gains and losses on inventory and other firm positions, which include warrants previously received as part of investment banking transactions. In certain cases, the Company provides liquidity to clients by buying or selling blocks of shares of listed stocks without previously identifying the other side of the trade at execution, which subjects the Company to market risk. These positions are typically held for a very short duration.

• Equity Research Fees. Equity and credit research fees are paid to the Company for providing equity and credit research. Revenue is recognized once an arrangement exists, access to research has been provided, the fee amount is fixed or determinable, and collection is reasonably assured.

Investment Income

Investment income earned by the alternative investment and broker-dealer segments are earned from investing the Company's capital in various strategies and from investments in private capital raising transactions of its investment banking clients.

Goodwill and Intangible Assets

Goodwill represents the excess of the purchase price consideration of acquired companies over the estimated fair value assigned to the individual assets acquired and liabilities assumed. Goodwill is allocated to the Company's reporting units at the date the goodwill is initially recorded. Once goodwill has been allocated to the reporting units, it generally no longer retains its identification with a particular acquisition, but instead becomes identifiable with the reporting unit. As a result, all of the fair value of each reporting unit is available to support the value of goodwill allocated to the unit.

In accordance with US GAAP, the Company tests goodwill for impairment on an annual basis or at an interim period if events or changed circumstances would more likely than not reduce the fair value of a reporting unit below its carrying amount. Under US GAAP, the Company first assesses the qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amounts as a basis for determining if it is necessary to perform the two-step approach. The first step requires a comparison of the fair value of the reporting unit to its carrying value, including goodwill. If the fair value of the reporting unit exceeds its carrying value, the related goodwill is not considered impaired and no further analysis is required. If the carrying value of the reporting unit exceeds the fair value, there is an indication that the related goodwill might be impaired and the step two is performed to measure the amount of impairment, if any.

The second step of the goodwill impairment test compares the implied fair value of the reporting unit's goodwill with its carrying amount to measure the amount of impairment, if any. The implied fair value of goodwill is determined in the same manner as the amount of goodwill recognized in a business combination. In other words, the estimated fair value of the reporting unit is allocated to all of its assets and liabilities (including any unrecognized intangible assets) as if the reporting unit had been acquired in a business combination and the fair value of the reporting unit was the purchase price paid. If the carrying amount of the reporting unit goodwill exceeds the implied fair value of that goodwill, an impairment is recognized in an amount equal to that excess. Goodwill impairment tests involve significant judgment in determining the estimates of future cash flows, discount rates, economic forecast and other assumptions which are then used in acceptable valuation techniques, such as the market approach (earning and or transactions multiples) and / or income approach (discounted cash flow method). Changes in these estimates and assumptions could have a significant impact on the fair value and any resulting impairment of goodwill.

Intangible assets with finite lives are amortized over their estimated average useful lives. The Company does not have any intangible assets deemed to have indefinite lives. Intangible assets are tested for potential impairment whenever events or changes in circumstances suggest that an asset or asset group's carrying value may not be fully recoverable. An impairment

85

loss, calculated as the difference between the estimated fair value and the carrying value of an asset or asset group, is recognized in the condensed consolidated statements of operations if the sum of the estimated discounted cash flows relating to the asset or asset group is less than the corresponding carrying value.

Legal Reserves

The Company estimates potential losses that may arise out of legal and regulatory proceedings and records a reserve and takes a charge to income when losses with respect to such matters are deemed probable and can be reasonably estimated, in accordance with US GAAP. These amounts are reported in other expenses, net of recoveries, in the condensed consolidated statements of operations. See Note 12 "Commitments and Contingencies" in our accompanying condensed consolidated financial statements for the quarter ended September 30, 2016 for further discussion.

Recently adopted and future adoption of accounting pronouncements

        For a detailed discussion, see Note 3 "Recently issued accounting pronouncements" in our accompanying condensed consolidated financial statements for the quarter ended September 30, 2016.

Item 3.    Quantitative and Qualitative Disclosures about Market Risk

During the three and nine months endedSeptember 30, 2016, there were no material changes in our quantitative and qualitative disclosures about market risks from those disclosed in our Annual Report on Form 10-K for the year ended December 31, 2015. For a more detailed discussion concerning our market risk, see Item 7A “Quantitative and Qualitative Disclosures about Market Risk” in our Annual Report on Form 10-K.

Item 4.    Controls and Procedures

Our management, with the participation of the Chief Executive Officer and the Chief Financial Officer (the principal executive officer and principal financial officer, respectively), evaluated our disclosure controls and procedures as of September 30, 2016.

Based on that evaluation, the Chief Executive Officer and the Chief Financial Officer have concluded that, as of September 30, 2016, our disclosure controls and procedures are effective to provide a reasonable assurance that information required to be disclosed by the Company in the reports filed or submitted by it under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and include controls and procedures designed to ensure that information required to be disclosed by the Company in such reports is accumulated and communicated to our management, including the Chief Executive Officer and the Chief Financial Officer of the Company, as appropriate, to allow timely decisions regarding required disclosure.

There have been no changes in our internal controls over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting during the nine months endedSeptember 30, 2016.

PART II. OTHER INFORMATION

Item 1.    Legal Proceedings

In the ordinary course of business, we are named as defendants in, or as parties to, various legal actions and proceedings. Certain of these actions and proceedings assert claims or seek relief in connection with alleged violations of securities, banking, anti-fraud, anti-money laundering, employment and other statutory and common laws. Certain of these actual or threatened legal actions and proceedings include claims for substantial or indeterminate compensatory or punitive damages, or for injunctive relief.

In the ordinary course of business, we are also subject to governmental and regulatory examinations, information gathering requests (both formal and informal), certain of which may result in adverse judgments, settlements, fines, penalties, injunctions or other relief. Certain of our affiliates and subsidiaries are investment banks, registered broker-dealers, futures commission merchants, investment advisers or other regulated entities and, in those capacities, are subject to regulation by various U.S., state and foreign securities, commodity futures and other regulators. In connection with formal and informal inquiries by these regulators, we receive requests, and orders seeking documents and other information in connection with various aspects of our regulated activities.

Due to the global scope of our operations, and presence in countries around the world, we may be subject to litigation, and governmental and regulatory examinations, information gathering requests, investigations and proceedings (both formal and informal), in multiple jurisdictions with legal and regulatory regimes that may differ substantially, and present substantially different risks, from those we are subject to in the United States.

86

The Company seeks to resolve all litigation and regulatory matters in the manner management believes is in the best interests of the Company and its shareholders, and contests liability, allegations of wrongdoing and, where applicable, the amount of damages or scope of any penalties or other relief sought as appropriate in each pending matter.

In accordance with US GAAP, the Company establishes reserves for contingencies when the Company believes that it is probable that a loss has been incurred and the amount of loss can be reasonably estimated. The Company discloses a contingency if there is at least a reasonable possibility that a loss may have been incurred and there is no reserve for the loss because the conditions above are not met. The Company's disclosure includes an estimate of the reasonably possible loss or range of loss for those matters, for which an estimate can be made. Neither a reserve nor disclosure is required for losses that are deemed remote.

The Company appropriately reserves for certain matters where, in the opinion of management, the likelihood of liability is probable and the extent of such liability is reasonably estimable. Such amounts are included within accounts payable, accrued expenses and other liabilities in theaccompanying condensed consolidated statements of financial condition. Estimates, by their nature, are based on judgment and currently available information and involve a variety of factors, including, but not limited to, the type and nature of the litigation, claim or proceeding, the progress of the matter, the advice of legal counsel, the Company's defenses and its experience in similar cases or proceedings as well as its assessment of matters, including settlements, involving other defendants in similar or related cases or proceedings. The Company may increase or decrease its legal reserves in the future, on a matter-by-matter basis, to account for developments in such matters. The Company accrues legal fees as incurred.

The following information reflects developments with respect to the Company's legal proceedings that occurred in the quarter ended September 30, 2016.

On May 28, 2014, Energy Intelligence Group, Inc. and Energy Intelligence Group UK (collectively, "EIG") filed a lawsuit against Cowen and Company, LLC in the United States Court for the Southern District of New York (Energy Intelligence Group, Inc. and Energy Intelligence Group UK v. Cowen and Company, LLC, No. 14-CV-3789). The complaint alleges copyright infringement based on alleged impermissible distribution of EIG's publication, Oil Daily, by Cowen and Company and Dahlman Rose & Company, LLC, as Cowen's alleged predecessor-in-interest. EIG is seeking statutory damages based on alleged willful infringement of their copyrights. On November 12, 2014, the Company filed an answer and affirmative defenses to the EIG complaint.  On September 25, 2015, the Company filed its motion for partial summary judgment to dismiss certain of EIG’s claims relating to Dahlman Rose’s alleged copyright infringement.  During the second quarter the Company also filed a motion to disqualify EIG’s copyright counsel based on a conflict of interest.  Both of the Company’s motions were heard in the second quarter of 2016.  On July 15, 2016 the District Court ruled in favor of the Company on both of its motions.  The Company and EIG entered into a settlement agreement on September 30, 2016, pursuant to which EIG agreed to dismiss its lawsuit with prejudice. The settlement amount paid by the Company and the current period impact of the settlement was not material to the Company’s financial position or the results of operations for the three and nine months ended September 30, 2016. The dismissal of the lawsuit was approved by the District Court on October 4, 2016.

Item 1A.    Risk Factors

The discussion of our business and operations should be read together with the risk factors contained in Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2015. These risk factors describe various risks and uncertainties to which we are or may become subject. These risks and uncertainties have the potential to affect our business, financial condition, results of operations, cash flows, strategies or prospects in a material and adverse manner. There are no material changes from the risk factors previously disclosed in our 2015 Form 10-K filed with the SEC on February 29, 2016.

Item 2.    Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Issuer Purchases of Equity Securities: Sales of Unregistered Securities

As of September 30, 2016, the Company's Board of Directors has a share repurchase program that authorizes the Company to purchase up to $138.3 million of Cowen Class A common stock from time to time through a variety of methods, including in the open market or through privately negotiated transactions, in accordance with applicable securities laws. During the three months endedSeptember 30, 2016, the Company did not repurchase any shares of Cowen Class A stock through the share repurchase program.

The table below sets forth the information with respect to purchases made by or on the behalf of the Company or any “affiliated purchaser” (as defined in Rule 10b-18(a)(3) under the Exchange Act, as amended), of our common stock during the three months endedSeptember 30, 2016.

87

Period	Total Number of Shares Purchased	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs
Month 1 (July 1, 2016 – July 31, 2016)
Common stock repurchases(1)	—	$	—	—	22,556,160
Employee transactions(2)	3,124	$	2.73	—	—
Total	3,124	$	2.73
Month 2 (August 1, 2016 – August 31, 2016)
Common stock repurchases(1)	—	$	—	—	22,556,160
Employee transactions(2)	6,757	$	3.40	—	—
Total	6,757	$	3.40
Month 3 (September 1, 2016 – September 30, 2016)
Common stock repurchases(1)	—	$	—	—	22,556,160
Employee transactions(2)	58,011	$	3.43	—	—
Total	58,011	$	3.43
Total (July 1, 2016 – September 30, 2016)
Common stock repurchases(1)	—	$	—	—	22,556,160
Employee transactions(2)	67,892	$	3.39	—	—
Total	67,892	$	3.39	—

(1) The Company's Board of Directors have authorized the repurchase, subject to market conditions, of up to $138.3 million of the Company's outstanding common stock.

(2) Represents shares of common stock withheld in satisfaction of tax withholding obligations upon the vesting of equity awards or other similar transactions.

(3) Board approval of repurchases is based on dollar amount. The Company cannot estimate the number of shares that may yet be purchased.

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

Not Applicable.

Item 5. Other Information

None.

Item 6.    Exhibits

See Exhibit Index.

88

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

		COWEN GROUP, INC.
		By:	/s/ PETER A. COHEN
		Name:	Peter A. Cohen
		Title:	Chief Executive Officer (principal executive officer)
		By:	/s/ STEPHEN A. LASOTA
		Name:	Stephen A. Lasota
Date:	October 31, 2016	Title:	Chief Financial Officer (principal financial officer and principal accounting officer)

Exhibit Index

Exhibit No.	Description
10.1	Employment Agreement, dated as of August 26, 2016, by and between Cowen Group, Inc. and Peter A. Cohen (previously filed as Exhibit 10.1 to the Form 8-K filed August 30, 2016) *
31.1	Certification of CEO Pursuant to Section 302 of Sarbanes-Oxley Act of 2002 (filed herewith).
31.2	Certification of CFO Pursuant to Section 302 of Sarbanes-Oxley Act of 2002 (filed herewith).
32	Certification of CEO and CFO Pursuant to Section 906 of Sarbanes-Oxley Act of 2002 (furnished herewith).
101.INS	XBRL INSTANCE DOCUMENT
101.SCH	XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
101.CAL	XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT
101.DEF	XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
101.LAB	XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
101.PRE	XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT

* Signifies management contract or compensatory plan or arrangement.     

E - 1

EX-31.1

Exhibit 31.1

Certification

I, Peter A. Cohen, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Cowen Group, Inc:

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	October 31, 2016	/s/ PETER A. COHEN
		Name:  Peter A. Cohen Title:    Chief Executive Officer              (principal executive officer)

EX-31.2

Exhibit 31.2

Certification

I, Stephen A. Lasota, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Cowen Group, Inc:

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	October 31, 2016	/s/ STEPHEN A. LASOTA
		Name:  Stephen A. Lasota Title:    Chief Financial Officer (principal financial officer and principal accounting officer)

EX-32

Exhibit 32

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Cowen Group, Inc. (the "Company") on Form 10-Q for the quarter ended September 30, 2016, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), each of the undersigned officers of the Company certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to such officer's knowledge:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	October 31, 2016	/s/ PETER A. COHEN
		Name:  Peter A. Cohen Title:    Chief Executive Officer         (principal executive officer)
		/s/ STEPHEN A. LASOTA
		Name:  Stephen A. Lasota Title:    Chief Financial Officer (principal financial              officer and principal accounting officer)

*  The foregoing certification is being furnished solely pursuant to 18 U.S.C Section 1350 and is not being filed as part of the Report or as a separate disclosure document

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Oct. 28, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	Cowen Group, Inc.
Entity Central Index Key	0001466538
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		107,314,244

XML

Condensed Consolidated Statements of Financial Condition - USD ($) $ in Thousands		Sep. 30, 2016	Dec. 31, 2015
Assets
Cash and cash equivalents		$ 76,925	$ 158,485
Cash collateral pledged		13,783	10,085
Securities owned, at fair value		544,644	610,234
Receivable on derivative contracts, at fair value		27,428	39,618
Other investments		167,450	140,647
Receivable from brokers		77,631	117,757
Fees receivable, net of allowance		45,787	34,413
Due from related parties		32,539	39,659
Fixed assets, net of accumulated depreciation and amortization of $24,170 and $29,953, respectively		43,463	27,231
Goodwill		60,678	58,361
Intangible assets, net of accumulated amortization of $28,114 and $28,301, respectively		27,073	25,663
Deferred tax assets, net		151,237	143,560
Other assets		53,081	71,531
Consolidated Funds
Cash and cash equivalents		10,370	13,934
Securities owned, at fair value		71,456	32,000
Receivable on derivatives		429	0
Other investments		391,872	263,818
Receivable from brokers		5,333	0
Other assets		999	663
Total Assets		1,802,178	1,787,659
Liabilities
Securities sold, not yet purchased, at fair value		212,183	257,159
Payable for derivative contracts, at fair value		17,021	21,183
Payable to brokers		127,216	131,789
Compensation payable		59,103	150,403
Notes payable and other debt		78,357	68,565
Convertible debt	[1]	128,065	122,401
Fees payable		6,637	5,638
Due to related parties		257	329
Accounts payable, accrued expenses and other liabilities		62,496	52,233
Consolidated Funds
Due to related parties		0	3
Contributions received in advance		0	850
Securities sold, not yet purchased, at fair value		1,540	0
Payable to brokers		3,132	0
Payable for derivatives		276	0
Capital withdrawals payable		2,378	78
Accounts payable, accrued expenses and other liabilities		410	124
Total Liabilities		699,071	810,755
Commitments and Contingencies
Redeemable non-controlling interests		331,883	186,911
Stockholders' equity
Additional paid-in capital		921,062	902,554
(Accumulated deficit) retained earnings		1,160	23,627
Accumulated other comprehensive income (loss)		(3)	0
Less: Class A common stock held in treasury, at cost, 38,817,672 and 34,515,734 shares as of September 30, 2016 and December 31, 2015, respectively.		(152,163)	(137,356)
Total Stockholders' Equity		771,224	789,993
Total Liabilities and Stockholders' Equity		1,802,178	1,787,659
Convertible Preferred Stock
Stockholders' equity
Preferred stock		1	1
Common Stock Class A
Stockholders' equity
Common stock		1,167	1,167
Less: Class A common stock held in treasury, at cost, 38,817,672 and 34,515,734 shares as of September 30, 2016 and December 31, 2015, respectively.		(152,163)	(137,356)
Common Stock Class B
Stockholders' equity
Common stock		$ 0	$ 0

[1] The carrying amount of the convertible debt includes an unamortized discount of $19.6 million and $24.7 million as of September 30, 2016 and December 31, 2015.

XML

Consolidated Statements of Financial Condition (Parenthetical) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Assets
Fixed assets, accumulated depreciation and amortization (in dollars)	$ 24,170,000	$ 29,953,000
Intangible assets, accumulated amortization (in dollars)	$ 28,114,000	$ 28,301,000
Stockholders' equity
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	120,750	120,750
Preferred stock, shares outstanding	120,750	120,750
Preferred Stock, Liquidation Preference, Value	$ 120,750,000	$ 120,750,000
Treasury Stock, Shares	38,817,672	34,515,734
Common Stock Class A
Stockholders' equity
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	146,131,829	140,120,392
Common stock, shares outstanding	107,314,157	105,604,658
Common stock, restricted shares	648,704	497,570
Treasury Stock, Shares	38,817,672	34,515,734
Common Stock Class B
Stockholders' equity
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	0	0
Common stock, shares outstanding	0	0

XML

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenues
Investment banking	$ 36,722	$ 53,012	$ 98,156	$ 186,763
Brokerage	49,605	41,085	147,640	111,496
Management fees	10,272	10,519	31,951	31,169
Incentive income	1,284	93	2,823	365
Interest and dividends	3,906	3,604	11,664	9,846
Reimbursement from affiliates	2,140	3,355	8,268	10,499
Aircraft lease revenue	1,089	0	3,071	0
Other revenue	25,112	1,312	41,183	2,684
Consolidated Funds
Interest and dividends	904	245	3,518	685
Other revenues	(7)	29	1,023	449
Total revenues	131,027	113,254	349,297	353,956
Expenses
Employee compensation and benefits	98,501	56,401	217,309	227,593
Floor brokerage and trade execution	8,224	6,415	23,887	18,418
Interest and dividends	7,612	7,367	21,866	19,241
Professional, advisory and other fees	5,305	6,392	16,585	16,874
Service fees	2,075	1,778	6,334	5,338
Communications	4,619	3,478	13,287	10,313
Occupancy and equipment	8,033	7,286	23,911	21,024
Depreciation and amortization	3,174	2,301	9,654	6,584
Client services and business development	6,349	5,132	20,335	18,316
Other Expenses	11,898	3,783	32,328	11,442
Consolidated Funds
Interest and dividends	1,665	366	4,292	858
Professional, advisory and other fees	337	174	959	476
Floor brokerage and trade execution	173	(20)	306	46
Other expenses	294	114	871	246
Total expenses	158,259	100,967	391,924	356,769
Other income (loss)
Net gains (losses) on securities, derivatives and other investments	26,153	(23,612)	9,123	24,449
Consolidated Funds
Net realized and unrealized gains (losses) on investments and other transactions	19,755	333	(6,543)	8,073
Net realized and unrealized gains (losses) on derivatives	5,368	(78)	13,525	(404)
Net gains (losses) on foreign currency transactions	(26)	(13)	72	(45)
Total other income (loss)	51,250	(23,370)	16,177	32,073
Income (loss) before income taxes	24,018	(11,083)	(26,450)	29,260
Income tax expense (benefit)	8,759	(5,081)	(6,553)	5,212
Net income (loss)	15,259	(6,002)	(19,897)	24,048
Net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	(18,478)	(4,344)	2,524	(10,980)
Net income (loss) attributable to Cowen Group, Inc.	(3,219)	(10,346)	(17,373)	13,068
Preferred stock dividends	1,698	1,603	5,094	2,358
Net income (loss) attributable to Cowen Group, Inc. common stockholders	$ (4,917)	$ (11,949)	$ (22,467)	$ 10,710
Weighted average common shares outstanding:
Basic (in shares)	107,974	109,191	107,272	111,050
Diluted (in shares)	107,974	109,191	107,272	117,249
Earnings (loss) per share:
Earnings Per Share, Basic (in dollars per share)	$ (0.05)	$ (0.11)	$ (0.21)	$ 0.10
Earnings Per Share, Diluted (in dollars per share)	$ (0.05)	$ (0.11)	$ (0.21)	$ 0.09

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Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (19,897)	$ 24,048
Other comprehensive income (loss), net of tax:
Foreign currency translation	(3)	(4)
Total other comprehensive income, net of tax	(3)	(4)
Comprehensive income (loss)	$ (19,900)	$ 24,044

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Condensed Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Treasury Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings/(Accumulated deficit)	Preferred Stock	Convertible Preferred Stock Retained Earnings/(Accumulated deficit)	Common Stock Class A	Options
Balance at Dec. 31, 2014	$ 677,675	$ (79,771)	$ 772,296	$ 17	$ (16,027)	$ 0		$ 1,160
Common Stock, Shares, Outstanding at Dec. 31, 2014								111,691,199.000
Preferred stock, shares outstanding at Dec. 31, 2014						0
Redeemable Noncontrolling Interest at Dec. 31, 2014	86,076
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to Cowen Group, Inc.	13,068				13,068
Net income (loss) attributable to redeemable non-controlling interests	10,980
Foreign currency translation	(4)			(4)
Capital contributions	88,740
Capital withdrawals	(14,551)
Restricted stock awards issued, shares								4,027,405
Purchase of treasury stock, at cost, shares								(9,269,163)
Purchase of treasury stock, at cost	(50,253)
Preferred stock issuance, net of issuance costs (See Note 14) (in shares)						120,750
Preferred stock issuance, net of issuance costs (See Note 14)	117,195		117,194			$ 1
Dividends							$ (2,358)
Preferred stock dividends	(2,358)
Common stock issued upon acquisition, shares								548,625
Common stock issuance upon close of acquisition (see Note 2)	3,008		3,002					$ 6
Capped call option transaction									$ (15,878)
Income tax effect from share based compensation	3,714
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period								100,002
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures								$ 1
Adjustments to Additional Paid in Capital, Share-based Compensation and Exercise of Stock Options	395		394
Amortization of share based compensation	16,211
Balance at Sep. 30, 2015	762,773	(130,024)	896,933	13	(5,317)	$ 1		$ 1,167
Common Stock, Shares, Outstanding at Sep. 30, 2015								107,098,068
Preferred stock, shares outstanding at Sep. 30, 2015						120,750
Redeemable Noncontrolling Interest at Sep. 30, 2015	171,245
Balance at Dec. 31, 2015	$ 789,993	(137,356)	902,554	0	23,627	$ 1		$ 1,167
Common Stock, Shares, Outstanding at Dec. 31, 2015								105,604,658
Preferred stock, shares outstanding at Dec. 31, 2015	120,750					120,750
Redeemable Noncontrolling Interest at Dec. 31, 2015	$ 186,911
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to Cowen Group, Inc.	(17,373)				(17,373)
Net income (loss) attributable to redeemable non-controlling interests	(2,524)
Foreign currency translation	(3)			(3)
Capital contributions	236,720
Capital withdrawals	(16,182)
Deconsolidation of entity	(73,042)
Restricted stock awards issued, shares								6,011,437
Purchase of treasury stock, at cost, shares								(4,301,938)
Purchase of treasury stock, at cost	(14,807)
Dividends							$ (5,094)
Preferred stock dividends	(5,094)
Common stock issuance upon close of acquisition (see Note 2)	0
Income tax effect from share based compensation	(763)
Amortization of share based compensation	19,271
Balance at Sep. 30, 2016	$ 771,224	$ (152,163)	$ 921,062	$ (3)	$ 1,160	$ 1		$ 1,167
Common Stock, Shares, Outstanding at Sep. 30, 2016								107,314,157
Preferred stock, shares outstanding at Sep. 30, 2016	120,750					120,750
Redeemable Noncontrolling Interest at Sep. 30, 2016	$ 331,883

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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income (loss)	$ (19,897)	$ 24,048
Adjustments to reconcile net income (loss) to net cash provided by / (used in) operating activities:
Depreciation and amortization	9,654	6,584
Net gain on sale of divested business	(15,638)	0
Amortization of Debt Issue Costs	894	0
Amortization of debt discount	5,107	4,674
Tax benefits from share based payment arrangements	(764)	3,714
Share-based compensation	19,271	16,211
Deferred tax benefit	(6,913)	(2,050)
Deferred rent obligations	(634)	(2,113)
Net loss on disposal of fixed assets	0	54
Contingent liability adjustment	2,139	0
Purchases of securities owned, at fair value	(3,050,670)	(4,650,626)
Proceeds from sales of securities owned, at fair value	3,173,147	4,556,647
Proceeds from sales of securities sold, not yet purchased, at fair value	2,343,063	2,003,879
Payments to cover securities sold, not yet purchased, at fair value	(2,442,968)	(1,940,343)
Net (gains) losses on securities, derivatives and other investments	(23,706)	(32,719)
Consolidated Funds
Purchases of securities owned, at fair value	(60,187)	(12,000)
Proceeds from sales of securities owned, at fair value	27,010	0
Proceeds from sales of securities sold, not yet purchased, at fair value	2,226	0
Payments to cover securities sold, not yet purchased, at fair value	(1,098)	0
Purchases of other investments	(221,897)	(78,491)
Proceeds from sales of other investments	14,086	18,722
Net realized and unrealized (gains) losses on investments and other transactions	(4,505)	(6,749)
(Increase) decrease in operating assets:
Cash collateral pledged	(3,698)	(823)
Securities owned, at fair value, held at broker dealer	(26,048)	20,696
Receivable on derivative contracts, at fair value	12,191	8,290
Securities borrowed	0	676,100
Receivable from brokers	40,126	(26,744)
Fees receivable, net of allowance	(12,536)	(6,952)
Due from related parties	6,914	106
Other assets	(23,446)	(919)
Consolidated Funds
Cash and cash equivalents	3,564	(16,124)
Receivable on derivative contracts	(429)	0
Receivable from Brokers	(5,333)	0
Other assets	(336)	780
Increase (decrease) in operating liabilities:
Securities sold, not yet purchased, at fair value, held at broker dealer	21,954	(7,134)
Payable for derivative contracts, at fair value	(4,162)	(15,252)
Securities loaned	0	(682,493)
Payable to brokers	(4,573)	(7,010)
Compensation payable	(99,217)	(41,628)
Fees payable	999	12,965
Due to related parties	(72)	(154)
Accounts payable, accrued expenses and other liabilities	3,863	(7,746)
Consolidated Funds
Contributions received in advance	(850)	5,000
Payable to brokers	3,131	0
Payable for derivative contracts, at fair value	276	0
Due to related parties	264	1,000
Accounts payable, accrued expenses and other liabilities	286	67
Net cash provided by / (used in) operating activities	(339,412)	(178,533)
Cash flows from investing activities:
Purchases of other investments	(25,689)	(10,259)
Purchase of business Net of Cash Acquired	(6,258)	(14,936)
Proceeds from sales of other investments	29,814	37,368
Proceeds from loans held for investments	41,600	0
Proceeds from Divestiture of Businesses, Net of Cash Divested	17,303	0
Purchase of fixed assets	(14,913)	(5,191)
Net cash provided by / (used in) investing activities	41,857	6,982
Cash flows from financing activities:
Proceeds from Issuance of Preferred Stock, net of issuance costs	0	117,194
Capped call option transaction	0	15,879
Borrowings on notes and other debt	30,638	2,140
Repayments on notes and other debt	(28,345)	(2,655)
Income tax effect from share-based payment arrangements	(764)	3,714
Proceeds from Stock Options Exercised	0	395
Purchase of treasury stock	(6,014)	(41,697)
Cash paid to acquire net assets (contingent liability payment)	(2,358)	(1,725)
Capital contributions by redeemable non-controlling interests in operating entities	0	5,644
Capital withdrawals to redeemable non-controlling interests in operating entities	(6,995)	(8,203)
Consolidated Funds
Capital contributions by redeemable non-controlling interests in Consolidated Funds	236,720	83,097
Capital withdrawals to redeemable non-controlling interests in Consolidated Funds	(6,887)	(7,129)
Net cash provided by / (used in) financing activities	215,995	134,896
Change in cash and cash equivalents	(81,560)	(36,655)
Cash and cash equivalents at beginning of period	158,485	129,509
Cash and cash equivalents at end of period	76,925	92,854
Supplemental information
Purchase of treasury stock, at cost, through net settlement (see Note 14)	8,793	8,556
Notes payable increase through asset acquisition	7,164	0
Preferred stock dividends declared (See Note 14)	5,094	2,358
Net assets (liabilities) acquired upon acquisition (net of cash) (See Note 2)	0	(11,688)
Common stock issuance upon close of acquisition (see Note 2)	$ 0	$ 3,008

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Organization and Business

9 Months Ended

Sep. 30, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Business

Organization and Business

Cowen Group, Inc., a Delaware corporation formed in 2009, is a diversified financial services firm and, together with its consolidated subsidiaries (collectively, “Cowen,” “Cowen Group” or the “Company”), provides alternative investment management, investment banking, research, sales and trading and prime brokerage services through its two business segments: alternative investment and broker-dealer. The Company's alternative investment segment, includes hedge funds, private equity structures, registered investment companies and listed vehicles. The Company's broker-dealer segment offers research, sales and trading, prime brokerage and investment banking services to companies and primarily institutional investor clients. Our primary target sectors are healthcare, technology, media and telecommunications, information and technology services, consumer, aerospace and defense, industrials,and energy and transportation sectors.

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Acquisition

9 Months Ended

Sep. 30, 2016

Acquisition [Abstract]

Acquisition

Acquisitions and Divestitures

Acquisitions

Low Country

On April 22, 2016, Cowen Aviation Finance Holdings Inc. ("Cowen Aviation Finance") entered into a transaction whereby Cowen Aviation Finance acquired Low Country III, LLC, which is comprised of a portfolio of four specialized aircraft currently on lease in exchange for an immaterial upfront payment and a minority equity interest in Cowen Aviation Finance. As part of the transaction Cowen Aviation Finance also acquired the associated debt financing and lease contracts for each aircraft. Separate from the transaction, Cowen Aviation Finance entered into services agreements with Tempus Applied Solutions, Inc., a related party through common directors, which, among other services, will provide marketing, maintenance, and lease administration services for Cowen Aviation Finance's current aircraft fleet. This acquisition was accounted for as an asset acquisition in accordance with accounting principles generally accepted in the United States of America ("US GAAP") because, upon separation from the seller, the acquired assets do not meet the definition of a business.

CRT business

On May 6, 2016, the Company completed its previously announced acquisition of the credit products, credit research, special situations and emerging markets units from CRT Capital Group LLC (“CRT”). The acquisition was completed for a combination of cash of $6.3 million and contingent consideration payable annually based on future revenues exceeding specific targets. In the aggregate, the purchase price, assets acquired and liabilities assumed were not significant and the near term impact to the Company and its consolidated results of operations and cash flows is not expected to be significant. Following the acquisition, the businesses acquired from CRT are included in the broker-dealer segment.

In accordance with the terms of the purchase agreement, the Company is required to pay to the sellers a portion of future revenue of the business exceeding specified targets over the period through June 2018. The Company estimated the contingent consideration using the income approach (discounted cash flow method) which requires the Company to make estimates and assumptions regarding the future cash flows and profits. Changes in these estimates and assumptions could have a significant impact on the amount recognized. On the acquisition date, the undiscounted amount ranged from zero to $8.0 million.

The acquisition was accounted for under the acquisition method of accounting in accordance with US GAAP. As such, the results of operations of the businesses acquired are included in the accompanying condensed consolidated statements of operations since the date of the acquisition and the assets acquired, liabilities assumed and the resulting goodwill were recorded at their fair values within their respective line items on the accompanying condensed consolidated statement of financial condition (see Note 8).

The Company is currently in the process of finalizing the valuation for certain acquired assets of CRT; therefore, the fair value measurements as of September 30, 2016 and goodwill are preliminary and subject to adjustments.

The Company recognized approximately $0.4 million of acquisition-related costs, including legal, accounting, and valuation services. These costs are included in professional, advisory and other fees in the accompanying condensed consolidated statements of operations. The Company also assumed contractual obligations toward certain employees which will vest over a 12 month period. These obligations are recorded as compensation expense on a straight line basis.

The results of operations of the businesses acquired from CRT for the period from May 6, 2016 through September 30, 2016 are integrated with the broker-dealer business and are included within respective line items. Included in the accompanying condensed consolidated statements of operations for the three and nine months endedSeptember 30, 2016 are revenues of $9.7 million and $13.1 million, respectively and net income of $1.4 million and $1.9 million, respectively (excluding corporate allocated expenses) related to the businesses acquired from CRT.

Concept and Conifer

During the year ended December 31, 2015, the Company completed two acquisitions. On September 1, 2015, the Company completed its acquisition of all of the outstanding interests in Concept Capital Markets, LLC ("Concept") offering prime brokerage services and outsourced trading. On October 1, 2015 the Company completed its acquisition of all of the outstanding interests in Conifer Securities, LLC ("Conifer") representing the prime brokerage services division of Conifer Financial Services LLC. Following the acquisitions, Concept was renamed Cowen Prime Services LLC ("Cowen Prime") and Conifer was renamed Cowen Prime Services Trading LLC ("Cowen Prime Trading"). Both were registered broker-dealers (members Financial Industry Regulatory Authority "FINRA" and Securities Industry Protection Corporation "SIPC"). Following the acquisitions, Conifer and Concept were integrated. During the second quarter of 2016, Cowen Prime Trading's broker-dealer withdrawal request, filed with FINRA, became effective and the business was combined into Cowen Prime.

The acquisitions were accounted for under the acquisition method of accounting in accordance with US GAAP. As such, the results of operations for Concept and Conifer are included in the accompanying condensed consolidated statements of operations since the dates of the respective acquisitions and the assets acquired, liabilities assumed and the resulting goodwill were recorded at their fair values within their respective line items on the accompanying condensed consolidated statement of financial condition.

The Company is currently in the process of finalizing the valuation for certain acquired assets of Concept and Conifer; therefore, the fair value measurements and goodwill are preliminary and subject to measurement period adjustments. The allocation of the purchase price to the net assets acquired will be finalized as necessary, up to one year after the acquisitions' respective closing dates, as the information becomes available. Both of the acquisitions were not deemed material individually but were material in the aggregate.

Included in the accompanying condensed consolidated statements of operations for the three and nine months endedSeptember 30, 2016 are revenues of $8.6 million and $30.7 million and net income of $0.4 million and $2.8 million, respectively (excluding corporate allocated expenses) related to the Concept and Conifer combined results of operations.

The following unaudited supplemental pro forma information presents consolidated financial results for the nine months ended September 30, 2015 as if the acquisitions were completed as of the beginning of that period. This supplemental pro forma information has been prepared for comparative purposes only and is not intended to be indicative of what the Company's results would have been had the acquisitions been completed on January 1, 2015, nor does it purport to be indicative of any future results.

	For the nine months ended September 30, 2015
	(dollars in thousands,  except per share data)
	(unaudited)
Revenues	$	385,932
Net income (loss) attributable to Cowen Group, Inc. common stockholders	10,672
Net income per common share:
Basic	$	0.10
Diluted	$	0.09

Divestitures

On September 23, 2016, the Company and the portfolio managers ofRamius Alternative Solutions LLC("RASL")completed the sale of their respective ownership interests in RASL, an investment advisor, and RASL was deconsolidated as of that date. RASL offered a range of customized hedge fund investment solutions with approximately$2.5 billionin client assets. In accordance with the terms of the agreement, the Company was only required to transfer an immaterial target working capital balance on the closing date. The net consideration received by the Company was approximately$17.3 million. Along with the target working capital transferred at closing, the Company alsoallocated a portion of goodwill associated with the alternative investment segment to the sale pricewhich is shown net in other revenues in the accompanying consolidated statements of operations.

As the Company will continue to offer its alternative investment platform to institutional and retail investors, the sale was not presented as discontinued operations. The overall impact on the consolidated financial position, results of operations and cash flows is not expected to be significant.

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Significant Accounting Policies

9 Months Ended

Sep. 30, 2016

Accounting Policies [Abstract]

Significant Accounting Policies

Significant Accounting Policies

a. Basis of Presentation

These unaudited condensed consolidated financial statements are prepared in accordance with US GAAP as promulgated by the Financial Accounting Standards Board ("FASB") through Accounting Standards Codification as the source of authoritative accounting principles in the preparation of financial statements, and include the accounts of the Company, its operating and other subsidiaries, and entities in which the Company has a controlling financial interest or a general partner interest. All material intercompany transactions and balances have been eliminated on consolidation. Certain fund entities that are consolidated in these accompanying condensed consolidated financial statements, as further discussed below, are not subject to the consolidation provisions with respect to their own controlled investments pursuant to their specialized accounting.

The Company serves as the managing member/general partner and/or investment manager to affiliated fund entities which it sponsors and manages. Funds in which the Company has a controlling financial interest are consolidated with the Company pursuant to US GAAP as described below. Consequently, the Company's condensed consolidated financial statements reflect the assets, liabilities, income and expenses of these funds on a gross basis. The ownership interests in these funds that are not owned by the Company are reflected as redeemable non-controlling interests in consolidated subsidiaries in the accompanying condensed consolidated financial statements. The management fees and incentive income earned by the Company from these funds are eliminated in consolidation.

The year-end condensed balance sheet data was derived from the audited financial statements, but does not include all disclosures included in the audited financial statements.

b. Principles of consolidation

The Company consolidates all entities that it controls through a majority voting interest or otherwise, including those funds in which the Company either directly or indirectly has a controlling financial interest. In addition, the Company consolidates all variable interest entities for which it is the primary beneficiary.

The Company adopted the new accounting pronouncement regarding consolidation accounting using the modified retrospective method with an effective adoption date of January 1, 2016. The modified retrospective method did not require the restatement of prior year periods. The adoption of the new accounting pronouncement also resulted in a reclassification of certain entities which were previously considered voting interest entities and are considered variable interest entities.

In accordance with these standards, the Company presently consolidatessixfunds for which it acts as the general partner and investment manager. As of September 30, 2016 the Company consolidated the following funds: Ramius Enterprise LP (“Enterprise LP”), Ramius Merger Fund LLC (the "Merger Fund"), Cowen Private Investments LP ("Cowen Private"), Ramius Archview Credit and Distressed Fund ("Archview Feeder Fund"), Ramius Archview Credit and Distressed Master Fund ("Archview Master Fund"), (as of May 1, 2016) Caerus Select Fund LP ("Caerus LP") and (as of July 11, 2016) Ramius Merger Arbitrage UCITS Fund ("UCITS Fund") (collectively the "Consolidated Funds").

The Company determines whether it has a controlling financial interest in an entity by first evaluating whether the entity is a voting operating entity ("VOE") or a variable interest entity ("VIE") under US GAAP.

Voting Operating Entities—VOEs are entities in which (i) the total equity investment at risk is sufficient to enable the entity to finance its activities independently and (ii) the equity holders at risk have the obligation to absorb losses, the right to receive residual returns and the right to direct the activities of the entity that most significantly impact the entity's economic performance.

Under US GAAP, the usual condition for a controlling financial interest in a VOE is ownership of a majority voting interest. Accordingly, the Company consolidates all VOEs in which it owns a majority of the entity's voting shares or units.

In connection with the adoption, the Company reevaluated all of its investment products for consolidation. As of January 1, 2016, the Company deconsolidated Quadratic Fund LLC ("Quadratic LLC") as the Company did not hold a significant voting interest in the fund. The adoption of the new accounting pronouncement also resulted in a reclassification of certain entities for which the Company was presumed to have control and will now be VIEs.

Variable Interest Entities—VIEs are entities that lack one or more of the characteristics of a VOE. In accordance with US GAAP, an enterprise must consolidate all VIEs of which it is the primary beneficiary. Under the US GAAP consolidation model for VIEs, an enterprise that (1) has the power to direct the activities of a VIE that most significantly impacts the VIE's economic performance, and (2) has an obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE, is considered to be the primary beneficiary of the VIE and thus is required to consolidate it.

The Company reconsiders whether it is the primary beneficiary of a VIE by performing a periodic qualitative and/or quantitative analysis of the VIE that includes a review of, among other things, its capital structure, contractual agreements between the Company and the VIE, the economic interests that create or absorb variability, related party relationships and the design of the VIE.As ofSeptember 30, 2016 and December 31, 2015, the total net assets of the consolidated VIEs were$452.0 million and $1.5 million, respectively. The VIEs act as investment managers and/or investment companies that may be managed by the Company or the Company may have equity interest in those investment companies. The VIEs are financed through their operations and/or loan agreements with the Company.

As of September 30, 2016the Company holds variable interests in Ramius Enterprise Master Fund Ltd (“Enterprise Master”), Ramius Merger Master Fund Ltd ("Merger Master") and Caerus Select Master Fund Ltd ("Caerus Master") (collectively the “Unconsolidated Master Funds”) through the Consolidated Funds. Investment companies, which account for their investments under the specialized industry accounting guidance for investment companies prescribed under US GAAP, are not subject to the consolidation provisions for their investments. Therefore, the Company has not consolidated the Unconsolidated Master Funds.

In the ordinary course of business, the Company also sponsors various other entities that it has determined to be VIEs. These VIEs are primarily funds and real estate entities for which the Company serves as the general partner, managing member and/or investment manager with decision-making rights.

The Company does not consolidate the Unconsolidated Master Funds or real estate entities that are VIEs as it has concluded that it is not the primary beneficiary in each instance. Fund investors are entitled to all of the economics of these VIEs with the exception of the management fee and incentive income, if any, earned by the Company. The Company's involvement with funds and real estate entities that are unconsolidated VIEs is limited to providing investment management services in exchange for management fees and incentive income. Although the Company may advance amounts and pay certain expenses on behalf of the funds and real estate entities that it considers to be VIEs, it does not provide, nor is it required to provide, any type of substantive financial support to these entities outside of regular investment management services (see Note 5for additional disclosures on VIEs).

Equity Method Investments—For operating entities over which the Company exercises significant influence but which do not meet the requirements for consolidation as outlined above, the Company uses the equity method of accounting. The Company's investments in equity method investees are recorded in other investments in the accompanying condensed consolidated statements of financial condition. The Company's share of earnings or losses from equity method investees is included in net gains (losses) on securities, derivatives and other investments in the accompanying condensed consolidated statements of operations.

The Company evaluates its equity method investments for impairment whenever events or changes in circumstances indicate that the carrying amounts of such investments may not be recoverable. The difference between the carrying value of the equity method investment and its estimated fair value is recognized as an impairment charge when the loss in value is deemed other than temporary.

Other—If the Company does not consolidate an entity, apply the equity method of accounting or account for an investment under the cost method, the Company accounts for such entities (primarily, all securities of such entity which are bought and held principally for the purpose of selling them in the near term as trading securities) in accordance with US GAAP, at fair value with unrealized gains (losses) resulting from changes in fair value reflected within net gains (losses) on securities, derivatives and other investments in the accompanying condensed consolidated statements of operations.

Retention of Specialized Accounting—The Consolidated Funds and certain other consolidated companies are investment companies and apply specialized industry accounting for investment companies. The Company has retained this specialized accounting for these funds pursuant to US GAAP. The Company reports its investments on the condensed consolidated statements of financial condition at their estimated fair value, with unrealized gains (losses) resulting from changes in fair value reflected within net realized and unrealized gains (losses) on investments and other transactions. Accordingly, the accompanying condensed consolidated financial statements reflect different accounting policies for investments depending on whether or not they are held through a consolidated investment company. In addition, the Company's broker-dealer subsidiaries, Cowen and Company, LLC ("Cowen and Company"), ATM Execution LLC ("ATM Execution"), Cowen International Limited ("CIL"), Ramius UK Ltd. ("Ramius UK") and Cowen Prime apply the specialized industry accounting for brokers and dealers in securities also prescribed under US GAAP. The Company also retains specialized accounting in consolidation.

c. Use of estimates

The preparation of the accompanying condensed consolidated financial statements in conformity with US GAAP requires the management of the Company to make estimates and assumptions that affect the fair value of securities and other investments, the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the accompanying condensed consolidated financial statements, the accounting for goodwill and identifiable intangible assets and the reported amounts of revenues and expenses during the reporting period. Actual results could materially differ from those estimates.

d. Valuation of investments and derivative contracts

US GAAP establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (level 1 measurements) and the lowest priority to unobservable inputs (level 3 measurements). Thethreelevels of the fair value hierarchy are as follows:

Level 1 Inputs that reflect unadjusted quoted prices in active markets for identical assets or liabilities that the Company has

the ability to access at the measurement date;

Level 2     Inputs other than quoted prices that are observable for the asset or liability either directly or indirectly, including

inputs in markets that are not considered to be active; and

Level 3 Fair value is determined based on pricing inputs that are unobservable and includes situations where there is little,

if any, market activity for the asset or liability. The determination of fair value for assets and liabilities in this

category requires significant management judgment or estimation.

Inputs are used in applying the various valuation techniques and broadly refer to the assumptions that market participants use to make valuation decisions, including assumptions about risk. Inputs may include price information, volatility statistics, specific and broad credit data, liquidity statistics, and other factors. A financial instrument's level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. However, the determination of what constitutes “observable” requires significant judgment by the Company. The Company considers observable data to be that market data which is readily available, regularly distributed or updated, reliable and verifiable, not proprietary, and provided by independent sources that are actively involved in the relevant market. The categorization of a financial instrument within the hierarchy is based upon the pricing transparency of the instrument and does not necessarily correspond to the Company's perceived risk of that instrument.

The Company and its operating subsidiaries act as the manager for the Consolidated Funds. Both the Company and the Consolidated Funds hold certain investments which are valued by the Company, acting as the investment manager. The fair value of these investments is generally estimated based on proprietary models developed by the Company, which include discounted cash flow analysis, public market comparables, and other techniques and may be based, at least in part, on independently sourced market information. The material estimates and assumptions used in these models include the timing and expected amount of cash flows, the appropriateness of discount rates used, and, in some cases, the ability to execute, timing of, and estimated proceeds from expected financings. Significant judgment and estimation goes into the selection of an appropriate valuation methodology as well as the assumptions used in these models, and the timing and actual values realized with respect to investments could be materially different from values derived based on the use of those estimates. The valuation methodologies applied impact the reported value of the Company's investments and the investments held by the Consolidated Funds in the consolidated financial statements. Certain of the Company's investments are relatively illiquid or thinly traded and may not be immediately liquidated on demand if needed. Fair values assigned to these investments may differ significantly from the fair values that would have been used had a ready market for the investments existed and such differences could be material.

The Company primarily uses the “market approach” to value its financial instruments measured at fair value. In determining an instrument's level within the hierarchy, the Company categorizes the Company's financial instruments intothreecategories: securities, derivative contracts and other investments. To the extent applicable, each of these categories can further be divided between those held long or sold short.

The Company has the option to measure certain financial assets and financial liabilities at fair value with changes in fair value recognized in earnings each period. The election is made on an instrument by instrument basis at initial recognition of an asset or liability or upon an event that gives rise to a new basis of accounting for that instrument.  The Company has elected the fair value option for certain of its investments held by its operating companies.  This option has been elected because the Company believes that it is consistent with the manner in which the business is managed as well as the way that financial instruments in other parts of the business are recorded.

Securities—Securities with values based on quoted market prices in active markets for identical assets are classified within level 1 of the fair value hierarchy. These securities include active listed equities, certain U.S. government and sovereign obligations, ETF's, mutual funds and certain money market securities. The Company does not adjust the quoted price for such instruments, even in situations where the Company holds a large position and a sale could reasonably impact the quoted price.

Certain positions for which trading activity may not be readily visible, consisting primarily of convertible debt, corporate debt and loans and restricted equities, are stated at fair value and classified within level 2 of the fair value hierarchy. The estimated fair values assigned by management are determined in good faith and are based on available information considering, trading activity, broker quotes, quotations provided by published pricing services, counterparties and other market participants, and pricing models using quoted inputs, and do not necessarily represent the amounts which might ultimately be realized. As level 2 investments include positions that are not always traded in active markets and/or are subject to transfer restrictions, valuations may be adjusted to reflect illiquidity and/or non-transferability.

Derivative contracts—Derivative contracts can be exchange-traded or privately negotiated over-the-counter (“OTC”). Exchange-traded derivatives, such as futures contracts and exchange-traded option contracts, are typically classified within level 1 or level 2 of the fair value hierarchy depending on whether or not they are deemed to be actively traded. OTC derivatives, such as generic forwards, swaps and options, have inputs which can generally be corroborated by market data and are therefore classified within level 2. OTC derivatives, such as swaps and options where market data is not readily available or observable are classified as level 3.

Other investments—Other investments consist primarily of portfolio funds, real estate investments and equity method investments, which are valued as follows:

i. Portfolio funds—Portfolio funds (“Portfolio Funds”) include interests in funds and investment companies which may be managed by the Company or its affiliates. The Company follows US GAAP regarding fair value measurements and disclosures relating to investments in certain entities that calculate net asset value (“NAV”) per share (or its equivalent). The guidance permits, as a practical expedient, an entity holding investments in certain entities that either are investment companies as defined by the AICPA Audit and Accounting Guide, Investment Companies, or have attributes similar to an investment company, and calculate net asset value per share or its equivalent for which the fair value is not readily determinable, to measure the fair value of such investments on the basis of that NAV per share, or its equivalent, without adjustment.In accordance with US GAAP, investments which are valued using NAV per share as a practical expedient are not categorized within the fair value hierarchy.

ii. Real estate investments—Real estate debt and equity investments are valued at fair value. The fair value of real estate investments are estimated based on the price that would be received to sell an asset in an orderly transaction between marketplace participants at the measurement date. Real estate investments without a public market are valued based on assumptions and valuation techniques used by the Company. Such valuation techniques may include discounted cash flow analysis, prevailing market capitalization rates or earnings multiples applied to earnings from the investment, analysis of recent comparable sales transactions, actual sale negotiations and bona fide purchase offers received from third parties, consideration of the amount that currently would be required to replace the asset, as adjusted for obsolescence, as well as independent external appraisals. In general, the Company considers several valuation techniques when measuring the fair value of a real estate investment. However, in certain circumstances, a single valuation technique may be appropriate. Real estate investments are reviewed on a quarterly basis by the Company for significant changes at the property level or a significant change in the overall market which would impact the value of the real estate investment resulting in unrealized appreciation or depreciation.

Real estate and capital markets are cyclical in nature. Property and investment values are affected by, among other things, the availability of capital, occupancy rates, rental rates and interest and inflation rates. In addition, the Company invests in real estate and real estate related investments for which no liquid market exists. The market prices for such investments may be volatile and may not be readily ascertainable. Amounts ultimately realized by the Company from investments sold may differ from the fair values presented, and the differences could be material.

The Company's real estate investments are typically categorized as level 3 investments within the fair value hierarchy as management uses significant unobservable inputs in determining their estimated fair value.

See Notes5 and 6for further information regarding the Company's investments, including equity method investments, and fair value measurements.

e. Fixed Assets

Fixed assets are stated at cost less accumulated depreciation or amortization. Leasehold improvements are amortized on a straight-line basis over the lesser of their useful life or lease term. When the Company commits to a plan to abandon fixed assets or leasehold improvements before the end of its original useful life, the estimated depreciation or amortization period is revised to reflect the shortened useful life of the asset. Other fixed assets are depreciated on a straight-line basis over their estimated useful lives.

Aircraft and related equipment, which are leased out under operating leases, are carried at cost less accumulated depreciation and are depreciated to estimated residual value using the straight-line method over the lease term or estimated useful life of the asset. Any assets received at the end of the lease are marked to the lower of cost or fair value with the adjustment recorded in other income.

Asset	Depreciable Lives	Principal Method
Telephone and computer equipment	3-8 years	Straight-line
Computer software	3-7 years	Straight-line
Furniture and fixtures	5-8 years	Straight-line
Leasehold improvements	5-15 years	Straight-line
Capitalized lease asset	5 years	Straight-line
Aircraft and related equipment	10-20 years	Straight-line
Modifications to aircraft	4-10 years	Straight-line

f. Debt

Long-term debt is carried at the principal amount borrowed net of any discount/premium. The discount is accreted to interest expense using the effective interest method over the remaining life of the underlying debt obligations. Accrued but unpaid coupon interest is included in accrued expenses and other liabilities in the accompanying condensed consolidated statements of financial condition. The Company adopted a new accounting pronouncement, during the first quarter of 2016, which reclassified the unamortized debt issuance costs in our previously reported condensed consolidated statements of financial condition from other assets to a direct reduction from the carrying amount of the debt. Notes payable and other debt and convertible debt as of December 31, 2015 was previously presented as $195.7 million. Due to the retrospective application notes payable and other debt and convertible debt is now presented as $191.0 million as of December 31, 2015.

g.    Deferred rent

Deferred rent primarily consists of step rent, allowances from landlords and valuing the Company's lease properties in accordance with US GAAP. Step rent represents the difference between actual operating lease payments due and straight-line rent expense, which is recorded by the Company over the term of the lease, including the build-out period. This amount is recorded as deferred rent in the early years of the lease, when cash payments are generally lower than straight-line rent expense, and reduced in the later years of the lease when payments begin to exceed the straight-line expense. Landlord allowances are generally comprised of amounts received and/or promised to the Company by landlords and may be received in the form of cash or free rent. These allowances are part of the negotiated terms of the lease. The Company records a receivable from the landlord and a deferred rent liability when the allowances are earned. This deferred rent is amortized into income (through lower rent expense) over the term (including the pre-opening build-out period) of the applicable lease, and the receivable is reduced as amounts are received from the landlord. Liabilities resulting from valuing the Company's leased properties acquired through business combinations are quantified by comparing the current fair value of the leased space to the current rental payments on the date of acquisition. Deferred rent, included in accounts payable, accrued expenses and other liabilities in the accompanying condensed consolidated statements of financial condition, as of September 30, 2016 and December 31, 2015 is $10.4 million and $12.0 million, respectively. Deferred rent asset, included in other assets in the accompanying condensed consolidated statements of financial condition, as of September 30, 2016 and December 31, 2015 is $0.1 million and $0.3 million, respectively.

h.     Insurance-related contracts

Premiums for insurance-related contracts are earned over the coverage period. In most cases, premiums are recognized as revenues ratably over the term of the contract with unearned premiums computed on a monthly basis. For each of its contracts, the Company determines if the contract provides indemnification against loss or liability relating to insurance risk, in accordance with US GAAP. If the Company determines that a contract does not expose it to a reasonable possibility of a significant loss from insurance risk, the Company records the contract under the deposit method of accounting with any net amount receivable reflected as an asset in other assets, and any net amount payable reflected as a liability within accounts payable, accrued expenses and other liabilities on the condensed consolidated statements of financial condition.

The liabilities for losses and loss adjustment expenses are recorded at the estimated ultimate payment amounts, including reported losses.  Estimated ultimate payment amounts are based upon (1) reports of losses from policyholders, (2) individual case estimates and (3) estimates of incurred but not reported losses.

Provisions for losses and loss adjustment expenses are charged to earnings after deducting amounts recovered and estimates of recoverable amounts and are included in other expenses on the condensed consolidated statements of operations.

Costs of acquiring new policies, which vary with and are directly related to the production of new policies, have been deferred to the extent that such costs are deemed recoverable from future premiums or gross profits. Such costs include commissions and allowances as well as certain costs of policy issuance and underwriting and are included within other assets on the condensed consolidated statements of financial condition.

Included in other revenues, in the accompanying condensed consolidated statements of operations, for the three and nine months endedSeptember 30, 2016 is $8.9 million and $23.2 million, respectively, related to premiums earned from the Company’s insurance and reinsurance business. Included in other expenses, in the accompanying condensed consolidated statements of operations, for the three and nine months endedSeptember 30, 2016 is $8.6 million and $20.9 million, respectively, are insurance and reinsurance business loss and claim reserves, acquisition costs and other expenses.

i.    Revenue recognition

Lease revenue

Lease revenue under operating leases is recognized on a straight-line basis over the term of the lease.

j.    Recently issued accounting pronouncements

In August 2016, the FASB issued guidance which reduces the diversity in practice as to how certain cash receipts and cash payments are presented and classified in the statement of cash flows. This guidance addresses eight specific cash flow issues with the objective of reducing the existing and potential future diversity in practice. The amendments in this guidance are effective for public business entities for fiscal years beginning after December 15, 2017 and interim periods within those fiscal years. The Company is currently evaluating the impact of this guidance on the Company’s cash flows presentation.

In March 2016, as part of its simplification initiative, the FASB issued a new accounting pronouncement which simplified the requirements for share based payments. The guidance among other things covers the income tax consequences and classification of excess tax benefit and tax withholding on the statement of cash flows. For public business entities, the guidance is effective for reporting periods beginning after December 15, 2016. The Company is currently evaluating the impact of this guidance on the Company’s financial condition, results of operations and cash flows.

In May 2014, the FASB issued guidance which amends and supersedes the revenue recognition requirements and most industry-specific guidance and creates a single source of revenue guidance.  The new guidance outlines the principles an entity must apply to measure and recognize revenue and related cash flows.  The guidance also provides a model for the measurement and recognition of gains and losses on the sale of certain non-financial assets. The guidance is effective for reporting periods beginning after December 15, 2017.  In July 2015, the FASB confirmed a deferral of the effective date by one year, with early adoption on the original effective date permitted.  In 2016, the FASB issued various new guidance to clarify the implementation guidance on principal versus agent considerations, revenue from contracts with customers and identifying performance obligations and licensing implementation.  The Company is currently evaluating the impact of this guidance on the Company’s financial condition, results of operations and cash flows.

In March 2016, as part of its simplification initiative, the FASB issued a new accounting pronouncement which eliminates the requirement that when an investment qualifies for use of the equity method as a result of an increase in the level of ownership interest or degree of influence, an investor must adjust the investment, results of operations, and retained earnings retroactively on a step-by step basis as if the equity method had been in effect during all previous periods that the investment had been held. The amendments require that the equity method investor add the cost of acquiring the additional interest in the investee to the current basis of the investor’s previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for equity method accounting. Therefore, upon qualifying for the equity method of accounting, no retroactive adjustment of the investment is required. The guidance is effective prospectively for reporting periods beginning after December 15, 2016. The Company is currently evaluating the impact of this guidance on the Company’s financial condition, results of operations and cash flows.

In March 2016, the FASB issued two amendments relating to Derivatives and Hedging. The amendments clarify that a change in the counterparty to a derivative instrument that has been designated as the hedging instrument under Topic 815 does not, in and of itself, require de-designation of that hedging relationship provided that all other hedge accounting criteria continue to be met. The Second amendment relates to Contingent Put and call option in a debt instrument and clarify the requirements for assessing whether contingent call (put) options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt hosts when assessed under the current guidance. For public business entities the guidance is effective for reporting periods beginning after December 15, 2016. The Company is currently evaluating the impact of this guidance on the Company’s financial condition and its disclosures.

In February 2016, the FASB issued guidance which amends and supersedes its previous guidance regarding leases. The new guidance requires the lessee to recognize the right to use assets and lease liabilities that arise from leases and present them in its statement of financial condition. The recognition of these lease assets and lease liabilities represents an improvement over previous GAAP, which did not require lease assets and lease liabilities to be recognized for most leases. The recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee have not significantly changed from previous GAAP. There continues to be a differentiation between finance leases and operating leases. However, the principal difference from previous guidance is that the lease assets and lease liabilities arising from operating leases should be recognized in the statement of financial condition. For public business entities the guidance is effective for reporting periods beginning after December 15, 2018. The Company is currently evaluating the impact of this guidance on the Company’s financial condition and its disclosures.

In January 2016, as a joint project with International Accounting Standards Board (IASB), the FASB issued a new accounting pronouncement to address certain aspects of recognition, measurement, presentation and disclosure of financial instruments. The amendments in the update made improvements to US GAAP for equity investments and investments carried at amortized cost. The guidance also simplifies the impairment assessment for equity investments and clarifies the need for valuation allowance on deferred tax asset related to available for sale securities. For public business entities the guidance is effective for reporting periods beginning after December 15, 2017. The Company is currently evaluating the impact of this guidance on the Company’s financial condition and its disclosures.

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Cash Collateral Pledged

9 Months Ended

Sep. 30, 2016

Cash and Cash Equivalents [Abstract]

Cash Collateral Pledged

Cash Collateral Pledged

As of September 30, 2016 and December 31, 2015, the Company pledged cash collateral in the amount of $8.3 million and $10.1 million, respectively, which relates to letters of credit issued to the landlords of the Company's premises in New York City, Boston and San Francisco. The Company also has a letter of credit, in the amount of $5.5 million, due March 2017, for which cash is pledged as collateral under a reinsurance agreement. (See Note 13).

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Investments of Operating Entities and Consolidated Funds

9 Months Ended

Sep. 30, 2016

Investments, Debt and Equity Securities [Abstract]

Investments of Operating Entities and Consolidated Funds

Investments of Operating Entities and Consolidated Funds

a. Operating Entities

Securities owned, at fair value

Securities owned, at fair value are held by the Company and are considered held for trading. Substantially all equity securities are pledged to the clearing brokers under terms which permit the clearing broker to sell or re-pledge the securities to others subject to certain limitations.

As of September 30, 2016 and December 31, 2015, securities owned, at fair value consisted of the following:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
U.S. Government securities (a)	$	3,776	$	3,016
Preferred stock (b)	12,964		25,563
Common stocks (b)	504,093		516,108
Convertible bonds (c)	250		819
Corporate bonds (d)	17,794		47,192
Warrants and rights	5,762		3,059
Mutual funds (e)	5		14,477
	$	544,644	$	610,234

(a) As of September 30, 2016, maturities ranged from December 2016 to August 2017 with an interest rate of 0%. As of December 31, 2015, maturities ranged from January 2016 to August 2016 with interest rates ranged between 0% to 5.95%.

(b) Included in preferred stocks are investments in securities for which the Company has elected the fair value option with the fair value of $4.2 million at September 30, 2016 and preferred and common stock of $7.7 million and $7.4 million, respectively, at December 31, 2015. These investments were acquired in connection with merchant banking transactions.

(c) As of September 30, 2016, the maturity was March 2018 with an interest rate of 8%. As of December 31, 2015, maturities ranged from July 2016 to March 2018 with interest rates ranged between 8% to 10.00%.

(d) As of September 30, 2016, maturities ranged from October 2016 to February 2046 and interest rates ranged between 3.25% to 13.00%. As of December 31, 2015, maturities ranged from March 2016 to February 2046 and interest rates ranged between 3.25% to 9.00%.

(e) Included in this amount as of December 31, 2015, are investments in affiliated funds of $13.4 million all of which was liquidated during the three months ended March 31, 2016.

Receivable on and Payable for derivative contracts, at fair value

The Company's direct involvement with derivative financial instruments includes futures, currency forwards, equity swaps, credit default swaps and options. The Company's derivatives trading activities exposes the Company to certain risks, such as price and interest rate fluctuations, volatility risk, credit risk, counterparty risk, foreign currency movements and changes in the liquidity of markets.

Upon issuance of the Company's cash convertible unsecured senior notes ("Convertible Notes") (See Note 13), the Company recognized the embedded cash conversion option at fair value of $35.7 million which is valued as of September 30, 2016 at $13.0 million and is included in payable for derivative contracts in the accompanying condensed consolidated statement of financial condition. Also, on the date of issuance of the Convertible Notes, the Company entered into a separate cash convertible note economic hedge transaction (the "Hedge Transaction") with a counterparty (the “Option Counterparty”) whereby, the Company purchased a cash settled option contract with terms identical to the conversion option embedded in the Convertible Notes and simultaneously sold an equity settled warrant with a higher strike price. The Hedge Transaction is expected to reduce the Company’s exposure to potential cash payments in excess of the principal amount of converted notes that the Company may be required to make upon conversion of the Convertible Notes. The Company paid a premium of $35.7 million for the option under the Hedge Transaction and received a premium of $15.2 million for the equity settled warrant transaction, for a net cost of $20.5 million. The Hedge Transaction is valued at $13.0 million as of September 30, 2016 and is included in receivable on derivative contracts in the accompanying condensed consolidated statement of financial condition. Aside from the initial premium paid, the Company will not be required to make any cash payments under the Hedge Transaction and could be entitled to receive an amount of cash from the Option Counterparty generally equal to the amount by which the market price per share of common stock exceeds the strike price of the Hedge Transaction during the relevant valuation period. The warrants cover 28,048,786 shares of the Company's Class A common stock and have an initial exercise price of $7.18 per share. The warrants expire over a period of 80 trading days beginning on November 14, 2018. The warrant transaction could have a dilutive effect to the extent that the market value per share of the Company’s Class A common stock exceeds the applicable strike price of the warrants.

The Company's long and short exposure to derivatives is as follows:

Receivable on derivative contracts	As of September 30, 2016				As of December 31, 2015
	Number of contracts / Notional Value		Fair value		Number of contracts / Notional Value		Fair value
	(dollars in thousands)
Futures	$	13,935	$	704	$	9,416	$	189
Currency forwards	$	59,902	17		$	67,862	659
Equity swaps	$	67,059	1,442		$	118,488	2,327
Options other (a)	242,968		22,941		289,433		31,456
Foreign currency options	$	245,700	2,324		$	283,797	4,987
			$	27,428			$	39,618

(a) Includes index, equity, commodity future and cash conversion options.

Payable for derivative contracts	As of September 30, 2016				As of December 31, 2015
	Number of contracts / Notional Value		Fair value		Number of contracts / Notional Value		Fair value
	(dollars in thousands)
Futures	$	42,736	$	1,235	$	11,995	$	101
Currency forwards	$	24,650	37		$	44,156	463
Equity and credit default swaps	$	—	—		$	7,605	71
Options other (a)	11,235		15,749		16,632		20,548
			$	17,021			$	21,183

(a) Includes index, equity, commodity future and cash conversion options.

The following tables present the gross and net derivative positions and the related offsetting amount, as of September 30, 2016 and December 31, 2015.

							Gross amounts not offset in the Condensed Consolidated Statement of Financial Condition
	Gross amounts recognized		Gross amounts offset on the Condensed Consolidated Statements of Financial Condition (a)		Net amounts included on the Condensed Consolidated Statements of Financial Condition		Financial instruments		Cash Collateral pledged (b)		Net amounts
	(dollars in thousands)
As of September 30, 2016
Receivable on derivative contracts, at fair value	$	27,428	$	—	$	27,428	$	—	$	4,278	$	23,150
Payable for derivative contracts, at fair value	17,021		—		17,021		—		37		16,984
As of December 31, 2015
Receivable on derivative contracts, at fair value	39,618		—		39,618		—		9,339		30,279
Payable for derivative contracts, at fair value	21,183		—		21,183		—		534		20,649

(a) Includes financial instruments subject to enforceable master netting provisions that are permitted to be offset to the extent an event of default has occurred.

(b) Includes the amount of collateral held or posted.

The realized and unrealized gains/(losses) related to derivatives trading activities were $(2.8) million and $(0.2) million for the three months ended September 30, 2016 and 2015 and $(10.4) million and $(5.6) million for the nine months endedSeptember 30, 2016 and 2015, respectively, and are included in other income in the accompanying condensed consolidated statements of operations.

Pursuant to the various derivatives transactions discussed above, except for the cash convertible note hedge (see Note 13) and exchange traded derivatives, the Company is required to post/receive collateral. As of September 30, 2016 and December 31, 2015, collateral consisting of $23.1 million and $27.1 million of cash, respectively, is included in receivable from brokers and payable to brokers on the accompanying condensed consolidated statements of financial condition. As of September 30, 2016 and December 31, 2015 all derivative contracts were with multiple major financial institutions.

Other investments

As of September 30, 2016 and December 31, 2015, other investments included the following:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Portfolio Funds, at fair value (1)	$	115,682	$	113,281
Equity method investments (2)	51,485		27,067
Lehman claims, at fair value	283		299
	$	167,450	$	140,647

(1) Portfolio Funds, at fair value

The Portfolio Funds, at fair value as of September 30, 2016 and December 31, 2015, included the following:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
HealthCare Royalty Partners (a)(*)	$	9,058	$	12,127
HealthCare Royalty Partners II (a)(*)	4,885		6,006
Orchard Square Partners Credit Fund LP (b)	4,241		4,170
Starboard Value and Opportunity Fund LP (c)(*)	27,984		20,369
Starboard Partners Fund LP (d)(*)	3,969		14,036
Starboard Leaders Fund LP (e)(*)	1,147		1,080
Formation8 Partners Fund I, L.P. (f)	21,784		19,454
Eclipse Ventures Fund I, L.P. (formerly Formation8 Partners Hardware Fund I, L.P.) (g)	1,705		1,101
RCG LV Park Lane LLC (h) (*)	971		809
RCGL 12E13th LLC (i) (*)	402		609
RCG Longview Debt Fund V, L.P. (i) (*)	16,325		18,147
RCG LPP2 PNW5 Co-Invest, L.P. (j) (*)	2,468		2,468
Quadratic Fund LLC (k) (*)	6,684		—
Other private investment (l) (*)	8,241		6,909
Other affiliated funds (m)(*)	5,818		5,996
	$	115,682	$	113,281

* These portfolio funds are affiliates of the Company.

The Company has no unfunded commitments regarding the portfolio funds held by the Company except as noted in Note 12.

(a) HealthCare Royalty Partners, L.P. and HealthCare Royalty Partners II, L.P. are private equity funds and therefore distributions will be made when cash flows are received from the underlying investments, typically on a quarterly basis.

(b) Orchard Square Partners Credit Fund LP has a quarterly redemption policy with a 60 day notice period and a 4% penalty on redemptions of investments of less than a year in duration.

(c) Starboard Value and Opportunity Fund LP permits quarterly withdrawals upon 90 days notice.

(d) Starboard Partners Fund LP permits redemptions on a semi-annual basis on 180 days prior written notice subsequent to an initial two year lock up.

(e) Starboard Leaders Fund LP does not permit withdrawals, but instead allows terminations with respect to capital commitments upon 30 days prior written notice at any time following the first anniversary of an investors initial capital contribution.

(f) Formation8 Partners Fund I, L.P. is a private equity fund which invests in early stage and growth transformational information and energy technology companies. Distributions will be made when the underlying investments are liquidated.

(g) Eclipse Ventures Fund I, L.P. (Formerly Formation8 Partners Hardware Fund I, L.P.) is a private equity fund which invests in early stage and growth hardware companies. Distributions will be made when the underlying investments are liquidated.

(h) RCG LV Park Lane LLC is a single purpose entity formed to participate in a joint venture which acquired, at a discount, the mortgage notes on a portfolio of multifamily real estate properties located in Birmingham, Alabama.  RCG LV Park Lane LLC is a private equity fund and therefore distributions will be made when the underlying investments are liquidated.

(i) RCGL 12E13th LLC and RCG Longview Debt Fund V, L.P. are real estate private equity structures and therefore distributions will be made when the underlying investments are liquidated.

(j) RCG LPP2 PNW5 Co-Invest, L.P. is a single purpose entity formed to participate in a joint venture which acquired five multi-unit residential rental properties located in the Pacific Northwest. RCG LPP2 PNW5 Co-Invest, L.P. is a private equity structure and therefore distributions will be made when the underlying investments are liquidated.

(k) Quadratic Fund LLC permits redemptions on a 30 days prior written notice.

(l) Other private investment represents the Company's closed end investment in a portfolio fund that invests in a wireless broadband communication provider in Italy.

(m) The majority of these funds are affiliates of the Company or are managed by the Company and the investors can redeem from these funds as investments are liquidated.

(2) Equity method investments

Equity method investments include investments held by the Company in several operating companies whose operations primarily include the day to day management of a number of real estate funds, including the portfolio management and administrative services related to the acquisition, disposition, and active monitoring of the real estate funds' underlying debt and equity investments. The Company's ownership interests in these equity method investments range from 20% to 55%. The Company holds a majority of the outstanding ownership interest (i.e., more than 50%) in RCG Longview Partners II, LLC. The operating agreement that governs the management of day-to-day operations and affairs of this entity stipulates that certain decisions require support and approval from other members in addition to the support and approval of the Company. As a result, all operating decisions made in this entity requires the support of both the Company and an affirmative vote of a majority of the other managing members who are not affiliates of the Company. As the Company does not possess control over any of these entities, the presumption of consolidation has been overcome pursuant to current accounting standards and the Company accounts for these investments under the equity method of accounting. Also included in equity method investments are the investments in (a) HealthCare Royalty Partners General Partners and (b) Starboard Value (and certain related parties) which serves as an operating company whose operations primarily include the day to day management (including portfolio management) of several activist hedge funds and related managed accounts and c) Surf House Ocean Views Holdings, LLC which is a joint venture in a real estate development project. The Company recorded no impairment charges in relation to its equity method investments for the nine months endedSeptember 30, 2016 and 2015.

The following table summarizes equity method investments held by the Company:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
RCG Longview Debt Fund IV Management, LLC	$	331	$	331
RCG Longview Debt Fund V Partners, LLC	6,594		4,655
HealthCare Royalty GP, LLC	739		989
HealthCare Royalty GP II, LLC	827		1,017
HealthCare Royalty GP III, LLC	197		88
HealthCare Overflow Fund GP, LLC	101		—
Surf House Ocean Views Holdings, LLC	13,383		—
Starboard Value LP	25,529		15,769
RCG Longview Management, LLC	714		656
RCG Urban American, LLC	107		120
RCG Urban American Management, LLC	379		379
RCG Longview Equity Management, LLC	114		114
Urban American Real Estate Fund II, LLC	1,311		1,211
RCG Kennedy House, LLC	227		304
Other	932		1,434
	$	51,485	$	27,067

For the period ended September 30, 2016, one equity method investment held by the Company has met the significance criteria as defined under SEC guidance. As such, the Company is required to present summarized financial information for the significant investee for the three and nine months ended September 30, 2016 and 2015 and such information is as follows.

Other equity method investment	Three Months Ended September 30,					Nine Months Ended September 30,
	2016		2015			2016		2015
	(dollars in thousands)
Revenues	$	9,005	$	(8,686	)	$	9,747	$	(5,182	)
Expenses	—		—			—		—
Net realized and unrealized gains (losses)	37		(132		)	92		(67		)
Net Income	$	9,042	$	(8,818	)	$	9,839	$	(5,249	)

As of September 30, 2016 and December 31, 2015, the Company's share of losses in its equity method investment in RCG Longview Partners II, LLC has exceeded the carrying amount recorded in this investee. These amounts are included in accounts payable, accrued expenses and other liabilities in the accompanying condensed consolidated statements of financial condition. RCG Longview Partners II, LLC, as general partner to a real estate fund, has reversed previously recorded incentive income allocations and has recorded a current clawback obligation to the limited partners in the fund. This obligation is due to a change in unrealized value of the fund on which there have previously been distributed carried interest realizations; however, the settlement of a potential obligation is not due until the end of the life of the respective fund. As the Company is obligated to return previous distributions it received from RCG Longview Partners II, LLC, it has continued to record its share of gains/losses in the investee including reflecting its share of the clawback obligation in the amount of $6.2 million.

The Company's income (loss) from equity method investments was a loss of $0.1 million and $5.9 million for the three months ended September 30, 2016 and 2015 and a gain of $16.0 million and $3.4 million for the nine months endedSeptember 30, 2016 and 2015, respectively, and is included in net gains (losses) on securities, derivatives and other investments on the accompanying condensed consolidated statements of operations.

Securities sold, not yet purchased, at fair value

Securities sold, not yet purchased, at fair value represent obligations of the Company to deliver a specified security at a contracted price and, thereby, create a liability to purchase that security at prevailing prices. The Company's liability for securities to be delivered is measured at their fair value as of the date of the consolidated financial statements. However, these transactions result in off-balance sheet risk, as the Company's ultimate cost to satisfy the delivery of securities sold, not yet purchased, at fair value may exceed the amount reflected in the accompanying condensed consolidated statements of financial condition. Substantially all equity securities and options are pledged to the clearing broker under terms which permit the clearing broker to sell or re-pledge the securities to others subject to certain limitations. As of September 30, 2016 and December 31, 2015, securities sold, not yet purchased, at fair value consisted of the following:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Common stocks	$	208,491	$	257,101
Corporate bonds (a)	3,653		58
Warrants and rights	39		—
	$	212,183	$	257,159

(a) As of September 30, 2016 and December 31, 2015, the maturities ranged from June 2017 to January 2026 with interest rates ranged between 3.25% to 6.88%.

Variable Interest Entities

The total assets and liabilities of the variable interest entities for which the Company has concluded that it holds a variable interest, but for which it is not the primary beneficiary, are $5.1 billion and $0.7 billion as of September 30, 2016 and $3.1 billion and $473.3 million as of December 31, 2015, respectively. In addition, the maximum exposure relating to these variable interest entities as of September 30, 2016 was $483.9 million, and as of December 31, 2015 was $327.8 million, all of which is included in other investments, at fair value in the accompanying condensed consolidated statements of financial condition. The exposure to loss primarily relates to the Consolidated Feeder Funds' investment in their Unconsolidated Master Funds and the Company's investment in unconsolidated investment companies.

b. Consolidated Funds

Securities owned, at fair value

As of September 30, 2016 and December 31, 2015, securities owned, at fair value, held by the Consolidated Funds consisted of the following:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
U.S. Government securities (a)	$	3,999	$	—
Preferred stock	37,243		32,000
Common stocks	22,950		—
Corporate bonds (b)	5,452		—
Warrants and rights	3		—
Term Loan	1,809		—
	$	71,456	$	32,000

(a) As of September 30, 2016, maturity was December 2016 with an interest rate of 0%.

(b) As of September 30, 2016, maturities ranged from October 2017 to May 2049 and interest rates ranged between 5.88% and 14.37%.

Securities sold, not yet purchased, at fair value

As of September 30, 2016, securities sold, not yet purchased, at fair value, held by the Consolidated Funds consisted of the following:

	As of September 30, 2016
	(dollars in thousands)
Common stocks	$	395
Corporate bonds (a)	1,145
	$	1,540

(a) As of September 30, 2016, maturities ranged from September 2019 to March 2025 and interest rates ranged between 4.38% and 9.25%.

Receivable on derivative contracts

As of September 30, 2016, receivable on derivative contracts, at fair value, held by the Consolidated Funds are comprised of:

	As of September 30, 2016
	(dollars in thousands)
Currency forwards	$	1
Equity swaps	366
Options	62
	$	429

Payable for derivative contracts

As of September 30, 2016, receivable on derivative contracts, at fair value, held by the Consolidated Funds are comprised of:

	As of September 30, 2016
	(dollars in thousands)
Futures	$	246
Options	30
	$	276

Other investments, at fair value

Investments in Portfolio Funds, at fair value

As of September 30, 2016 and December 31, 2015, investments in Portfolio Funds, at fair value, included the following:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Investments of Enterprise LP	$	110,290	$	111,075
Investments of Merger Fund	275,407		74,348
Investments of Caerus Select Fund Ltd	6,175		—
Investments of Quadratic LLC	—		78,395
	$	391,872	$	263,818

Consolidated portfolio fund investments of Enterprise LP    

Enterprise LP operates under a “master-feeder” structure, whereby Enterprise Master's shareholders are Enterprise LP and RCG II Intermediate Fund, L.P. The consolidated investments in Portfolio Funds include Enterprise LP's investment of $110.3 million and $111.1 million in Enterprise Master as of September 30, 2016 and December 31, 2015, respectively. On May 12, 2010, the Company announced its intention to close Enterprise Master. Prior to this announcement, strategies utilized by Enterprise Master included merger arbitrage and activist investing, investments in distressed securities, convertible hedging, capital structure arbitrage, equity market neutral, investments in private placements of convertible securities, proprietary mortgages, structured credit investments, investments in mortgage backed securities and other structured finance products, investments in real estate and real property interests, structured private placements and other relative value strategies. Enterprise Master had broad investment powers and maximum flexibility in seeking to achieve its investment objective. Enterprise Master was permitted to invest in equity securities, debt instruments, options, futures, swaps, credit default swaps and other derivatives. As Enterprise Master winds down its positions, it will return capital to its investors. There are no unfunded commitments at Enterprise LP.

Consolidated portfolio fund investments of Merger Fund    

The Merger Fund operates under a “master-feeder” structure, whereby Ramius Merger Master Ltd's ("Merger Master") shareholders are Merger Fund and Ramius Merger Fund Ltd. The consolidated investments in Portfolio Funds include Merger Fund's investment of $275.4 million and $74.3 million in Merger Master as of September 30, 2016 and December 31, 2015, respectively. The Merger Master’s investment objective is to achieve consistent absolute returns while emphasizing the preservation of investor capital. The Merger Master seeks to achieve these objectives by taking a fundamental, research-driven approach to investing, primarily in the securities of issuers engaged in, or subject to, announced (or unannounced but otherwise anticipated) extraordinary corporate transactions, which may include, but are not limited to, mergers, acquisitions, leveraged buyouts, tender offers, hostile takeover bids, sale processes, exchange offers, and recapitalizations. Merger Master invests in the securities of one or more issuers engaged in or subject to such extraordinary corporate transactions. Merger Master typically seeks to derive a profit by realizing the price differential, or “spread,” between the market price of securities purchased or sold short and the market price or value of securities realized in connection with the completion or termination of the extraordinary corporate transaction, or in connection with the adjustment of market prices in anticipation thereof, while seeking to minimize the market risk associated with the aforementioned investment activities. Merger Master will, depending on markets conditions, generally focus the majority of its investment program on announced transactions. If the investment manager of Merger Master considers it necessary, it may either alone or as part of a group, also initiate shareholder actions seeking to maximize value. Such shareholder actions may include, but are not limited to, re-orienting management’s focus or initiating the sale of the company (or one or more of its divisions) to a third party. There are no unfunded commitments at Merger Fund.

Consolidated portfolio fund investments of Caerus LP    

Caerus LP operates under a “master-feeder” structure, whereby Caerus Select Master Fund Ltd's ("Caerus Master") shareholder is Caerus LP. The consolidated investments in Portfolio Funds include Caerus LP's investment of $6.2 million in Caerus Master as of September 30, 2016. Caerus Master’s investment objective is to achieve superior risk-adjusted rates of return that bear little correlation to the overall market.  Caerus Master seeks to achieve this objective by utilizing a long/short investment strategy, investing primarily in equities and options on equities that trade on major global market exchanges. Caerus Master focuses on investments in the global consumer sector, including, but not limited to, securities in sub-sectors such as retail, apparel and footwear, restaurants, gaming and lodging, consumer products, food and beverage, consumer technology, media, transportation and homebuilding and building materials. There are no unfunded commitments at Caerus LP.

Consolidated portfolio fund investments of Quadratic Fund LLC     

Quadratic LLC operates under a “master-feeder” structure, whereby Quadratic Master Fund Ltd's ("Quadratic Master") shareholders are Quadratic Fund LLC and Quadratic Fund Ltd. The consolidated investments in Portfolio Funds include Quadratic Fund LLC's investment of $78.4 million in Quadratic Master as of December 31, 2015. Quadratic LLC was deconsolidated on January 1, 2016 (See Note 3). The Quadratic Master’s investment objective is to achieve attractive, risk-adjusted rates of return through the use of proprietary fundamental global macro and options/swaptions based strategies. Quadratic Master’s strategy is primarily executed via options and swaptions.

Indirect Concentration of the Underlying Investments Held by Consolidated Funds

From time to time, either directly or indirectly through its investments in the Consolidated Funds, the Company may maintain exposure to a particular issue or issuer (both long and/or short) which may account for 5% or more of the Company's equity. Based on information that is available to the Company as of September 30, 2016 and December 31, 2015, the Company assessed whether or not its interests in an issuer for which the Company's pro-rata share exceeds 5% of the Company's equity. There were no indirect concentrations that exceeded 5% of the Company's equity as of September 30, 2016 and December 31, 2015.

Underlying Investments of Unconsolidated Funds Held by Consolidated Funds

Enterprise Master and Merger Master

Enterprise LP's investment in Enterprise Master represents Enterprise LP's proportionate share of Enterprise Master's net assets; as a result, the investment balances of Enterprise Master reflected below may exceed the net investment which Enterprise LP has recorded. Merger Fund's investment in Merger Master represents Merger Fund's proportionate share of Merger Master's net assets; as a result, the investment balances of Merger Master reflected below may exceed the net investment which Merger Fund has recorded. The following tables present summarized investment information for the underlying investments and derivatives held by Enterprise Master and Merger Master as of September 30, 2016 and December 31, 2015:

Securities owned by Enterprise Master, at fair value

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Common stock	835		724
Preferred stock	1,587		1,484
Restricted stock	124		124
Rights	—		321
Trade claims	—		128
	$	2,546	$	2,781

Receivable/(Payable) on derivative contracts, at fair value, owned by Enterprise Master

	As of September 30, 2016		As of December 31, 2015
Description	(dollars in thousands)
Currency forwards	$	—	$	(4	)
	$	—	$	(4	)

Portfolio Funds, owned by Enterprise Master, at fair value

		As of September 30, 2016		As of December 31, 2015
	Strategy	(dollars in thousands)
RCG Longview Equity Fund, LP*	Real Estate	$	4,847	$	7,635
RCG Longview II, LP*	Real Estate	742		698
RCG Longview Debt Fund IV, LP*	Real Estate	1,841		3,577
RCG Soundview, LLC*	Real Estate	452		452
RCG Urban American Real Estate Fund, L.P.*	Real Estate	307		312
RCG Special Opportunities Fund, Ltd*	Multi-Strategy	95,023		81,544
RCG Energy, LLC *	Energy	—		1,189
RCG Renergys, LLC*	Energy	1		1
Other Private Investments	Various	9,164		10,515
Other Real Estate Investments *	Real Estate	4,779		5,753
		$	117,156	$	111,676

* Affiliates of the Company.

Merger Master

Securities owned by Merger Master, at fair value

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Common stocks	$	650,699	$	157,429
Corporate bonds (a)	14,443		492
	$	665,142	$	157,921

(a) As of September 30, 2016, the maturity was January 2024 with an interest rate of 6.5%. As ofDecember 31, 2015, the maturity was June 2024 with an interest rate of 5.25%.

Securities sold, not yet purchased, by Merger Master, at fair value

As of September 30, 2016 and December 31, 2015, Merger Master held common stock, sold not yet purchased, of $203.8 million and $73.8 million, respectively.

Receivable on derivative contracts, at fair value, owned by Merger Master

	As of September 30, 2016		As of December 31, 2015
Description	(dollars in thousands)
Options	$	2,987	$	1,275
Currency forwards	—		235
Equity swaps	2,525		1,001
	$	5,512	$	2,511

Payable for derivative contracts, at fair value, owned by Merger Master

	As of September 30, 2016		As of December 31, 2015
Description	(dollars in thousands)
Options	$	1,586	$	563
Equity swaps	—		30
	$	1,586	$	593

Caerus Master

As of September 30, 2016, Caerus Master held common stock, of $5.3 million and common stock, sold not yet purchased, of $3.8 million.

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Fair Value Measurements for Operating Entities and Consolidated Funds

9 Months Ended

Sep. 30, 2016

Fair Value Disclosures [Abstract]

Fair Value Measurements for Operating Entities and Consolidated Funds

Fair Value Measurements for Operating Entities and Consolidated Funds

The following table presents the assets and liabilities that are measured at fair value on a recurring basis on the accompanying condensed consolidated statements of financial condition by caption and by level within the valuation hierarchy as of September 30, 2016 and December 31, 2015:

	Assets at Fair Value as of September 30, 2016
	Level 1			Level 2			Level 3			Total
				(dollars in thousands)
Operating Entities
Securities owned
US Government securities	$	3,776		$	—		$	—		$	3,776
Preferred stock	—			—			12,964			12,964
Common stocks	490,854			1,638			11,601			504,093
Convertible bonds	—			—			250			250
Corporate bonds	—			17,574			220			17,794
Warrants and rights	2,205			—			3,557			5,762
Mutual funds	5			—			—			5
Receivable on derivative contracts, at fair value
Futures	704			—			—			704
Currency forwards	—			17			—			17
Equity swaps	—			1,442			—			1,442
Options	9,484			2,820			12,961			25,265
Other investments
Lehman claim	—			—			283			283
Consolidated funds
Securities owned
US Government securities	3,999			—			—			3,999
Preferred stock	—			352			36,891			37,243
Common stocks	14,306			8,644			—			22,950
Corporate Bonds	—			5,452			—			5,452
Warrants and rights	—			—			3			3
Term Loan	—			1,809			—			1,809
Receivable on derivative contracts, at fair value
Currency forwards	—			1			—			1
Futures	—			366			—			366
Options	57			5			—			62
	$	525,390		$	40,120		$	78,730		$	644,240
Percentage of total assets measured at fair value	81.6		%	6.2		%	12.2		%
Portfolio funds measured at net asset value (a)										115,682
Consolidated funds' portfolio funds measured at net asset value (a)										391,872
Equity method investments										51,485
Total investments										$	1,203,279

	Liabilities at Fair Value as of September 30, 2016
	Level 1			Level 2			Level 3			Total
	(dollars in thousands)
Operating Entities
Securities sold, not yet purchased
Common stocks	$	208,478		$	13		$	—		$	208,491
Corporate bonds	—			3,653			—			3,653
Warrants and rights	39			—			—			39
Payable for derivative contracts, at fair value
Futures	1,235			—			—			1,235
Currency forwards	—			37			—			37
Options	2,788			—			12,961			15,749
Accounts payable, accrued expenses and other liabilities
Contingent consideration liability (b)	—			—			7,201			7,201
Consolidated funds
Securities sold, not yet purchased
Common stocks	395			—			—			395
Corporate bonds	—			1,145			—			1,145
Payable for derivative contracts, at fair value
Options	30			—			—			30
Futures	—			246			—			246
	$	212,965		$	5,094		$	20,162		$	238,221
Percentage of total liabilities measured at fair value	89.4		%	2.1		%	8.5		%

(a) In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share (or its equivalent) as a practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the condensed consolidated statement of financial condition.

(b) In accordance with the terms of the purchase agreements for acquisitions that closed during 2012 and the third and fourth quarter of 2015 and the second quarter of 2016, the Company is required to pay to the sellers a portion of future net income of the acquired businesses, if certain revenue targets are achieved through the periods ended August 2016, December 2018, December 2020, and June 2018, respectively. The Company estimated the contingent consideration liability using the income approach (discounted cash flow method) which requires the Company to make estimates and assumptions regarding the future cash flows and profits. Changes in these estimates and assumptions could have a significant impact on the amounts recognized. The undiscounted amounts as of September 30, 2016 can range from $0.1 million to $16.3 million.

	Assets at Fair Value as of December 31, 2015
	Level 1			Level 2			Level 3			Total
				(dollars in thousands)
Operating Entities
Securities owned
US Government securities	$	3,016		$	—		$	—		$	3,016
Preferred stock	7,891			4,800			12,872			25,563
Common stocks	505,303			7,527			3,278			516,108
Convertible bonds	—			—			819			819
Corporate bonds	—			47,192			—			47,192
Warrants and rights	487			—			2,572			3,059
Mutual funds	14,477			—			—			14,477
Receivable on derivative contracts, at fair value
Futures	189			—			—			189
Currency forwards	—			659			—			659
Equity swaps	—			2,327			—			2,327
Options	11,895			6,354			18,194			36,443
Other investments
Lehman claim	—			—			299			299
Consolidated funds
Preferred stock	—			—			32,000			32,000
	$	543,258		$	68,859		$	70,034		$	682,151
Percentage of total assets measured at fair value	79.6		%	10.1		%	10.3		%
Portfolio funds measured at net asset value (a)										113,281
Consolidated funds' portfolio funds measured at net asset value (a)										263,818
Equity method investments										27,067
Total investments										$	1,086,317

	Liabilities at Fair Value as of December 31, 2015
	Level 1			Level 2			Level 3			Total
	(dollars in thousands)
Securities sold, not yet purchased
Common stocks	$	257,101		$	—		$	—		$	257,101
Corporate bonds	—			58			—			58
Payable for derivative contracts, at fair value
Futures	101			—			—			101
Currency forwards	—			463			—			463
Equity and credit default swaps	—			71			—			71
Options	2,354			—			18,194			20,548
Accounts payable, accrued expenses and other liabilities
Contingent consideration liability (b)	—			—			6,158			6,158
	$	259,556		$	592		$	24,352		$	284,500
Percentage of total liabilities measured at fair value	91.2		%	0.2		%	8.6		%

(a) In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share (or its equivalent) as a practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the condensed consolidated statement of financial condition.

(b) In accordance with the terms of the purchase agreements for acquisitions that closed during 2012 and the third and fourth quarter of 2015, the Company is required to pay to the sellers a portion of future net income of the acquired businesses, if certain revenue targets are achieved through the periods ended August 2016, December 2018, and December 2020, respectively. The Company estimated the contingent consideration liability using the income approach (discounted cash flow method) which requires the Company to make estimates and assumptions regarding the future cash flows and profits. Changes in these estimates and assumptions could have a significant impact on the amounts recognized. The undiscounted amounts as of December 31, 2015 can range from $0.1 million to $10.0 million.

The following table includes a rollforward of the amounts for the three and nine months endedSeptember 30, 2016 and 2015, for financial instruments classified within level 3. The classification of a financial instrument within level 3 is based upon the significance of the unobservable inputs to the overall fair value measurement.

	Three Months Ended September 30, 2016
	Balance at June 30, 2016		Transfers in		Transfers out				Purchases/(covers)		(Sales)/shorts			Realized and Unrealized gains/losses			Balance at September 30, 2016		Change in unrealized gains/losses relating to instruments still held (1)
	(dollars in thousands)
Operating Entities
Preferred stock	$	13,242	$	—	$	—			$	250	$	—		$	(528	)	$	12,964	$	(508	)
Common stocks	7,427		—		—				3,716		—			458			11,601		458
Convertible bonds	250		—		—				—		—			—			250		—
Corporate bond	319		—		—				—		(179		)	80			220		45
Options, asset	8,547		—		—				—		—			4,414			12,961		4,414
Options, liability	8,547		—		—				—		—			4,414			12,961		4,414
Warrants and rights	3,303		—		—				—		—			254			3,557		252
Lehman claim	270		—		—				—		—			13			283		13
Contingent consideration liability	7,197		—		—				—		—			4			7,201		4
Consolidated Funds
Preferred stock	41,000		—		(7,000		)	(a)	467		—			2,424			36,891		2,424
Warrants and rights	—		—		—				—		—			3			3		3

	Three Months Ended September 30, 2015
	Balance at June 30, 2015		Transfers in		Transfers out				Purchases/(covers)		(Sales)/shorts			Realized and Unrealized gains/losses			Balance at September 30, 2015		Change in unrealized gains/losses relating to instruments still held (1)
	(dollars in thousands)
Operating Entities
Preferred stock	$	23,462	$	—	$	(9,000	)	(a) (b)	$	3,500	$	(6,665	)	$	4,474		$	15,771	$	1,200
Common stocks	404		—		—				104		(89		)	(102		)	317		(87		)
Convertible bonds	879		—		—				250		—			—			1,129		—
Options, asset	58,576		—		—				—		—			(36,985		)	21,591		(36,985		)
Options, liability	58,576		—		—				—		—			(36,985		)	21,591		(36,985		)
Warrants and rights	2,316		—		—				—		—			678			2,994		878
Lehman claim	347		—		—				—		—			(12		)	335		(12		)
Contingent consideration liability	2,358		—		—				3,100		—			—			5,458		—
Consolidated Funds
Preferred Stock	—		—		7,000			(b)	12,000		—			—			19,000		—
Lehman claim	744		—		—				—		(739		)	(5		)	—		—

	Nine Months Ended September 30, 2016
	Balance at December 31, 2015		Transfers in		Transfers out				Purchases/(covers)		(Sales)/shorts			Realized and Unrealized gains/losses			Balance at September 30, 2016		Change in unrealized gains/losses relating to instruments still held (1)
	(dollars in thousands)
Operating Entities
Preferred stock	$	12,872	$	—	$	(1,000	)	(a)	$	450	$	(218	)	$	860		$	12,964	$	452
Common stocks	3,278		—		—				5,710		(135		)	2,748			11,601		2,750
Convertible bonds	819		—		—				—		(569		)	—			250		—
Corporate bond	—		—		—				279		(179		)	120			220		85
Options, asset	18,194		—		—				—		—			(5,233		)	12,961		(5,233		)
Options, liability	18,194		—		—				—		—			(5,233		)	12,961		(5,233		)
Warrants and Rights	2,572		—		—				1,914		(817		)	(112		)	3,557		(87		)
Lehman claim	299		—		—				—		—			(16		)	283		(16		)
Contingent consideration liability	6,158		—		—				2,397		(3,493		)	2,139			7,201		2,139
Consolidated Funds
Preferred stock	32,000				(11,000		)	(a)	13,467		—			2,424			36,891		2,424
Warrants and rights	—		—		—				—		—			3			3		3

	Nine Months Ended September 30, 2015
	Balance at December 31, 2014		Transfers in		Transfers out				Purchases/(covers)		(Sales)/shorts			Realized and Unrealized gains/losses			Balance at September 30, 2015		Change in unrealized gains/losses relating to instruments still held (1)
	(dollars in thousands)
Operating Entities
Preferred stock	$	12,517	$	—	$	(15,823	)	(a) (b)	$	21,750	$	(6,665	)	$	3,992		$	15,771	$	717
Common stocks	412		—		—				104		(120		)	(79		)	317		(74		)
Convertible bonds	900		—		—				250		—			(21		)	1,129		(21		)
Options, asset	36,807		—		—				—		—			(15,216		)	21,591		(15,216		)
Options, liability	36,807		—		—				—		—			(15,216		)	21,591		(15,216		)
Warrants and Rights, asset	1,322		—		—				26		(71		)	1,717			2,994		1,757
Lehman claim	380		—		—				—		—			(45		)	335		(45		)
Contingent consideration liability	4,083		—		—				3,100		(1,725		)	—			5,458		—
Consolidated Funds
Preferred Stock	—				7,000			(b)	12,000		—			—			19,000		—
Lehman claim	493		—		—				—		(739		)	246			—		250

(1) Unrealized gains/losses are reported in other income (loss) in the accompanying condensed consolidated

statements of operations.

(a) The investment was converted to equity.

(b) The company transferred investments to a consolidated fund.

All realized and unrealized gains (losses) in the table above are reflected in other income (loss) in the accompanying condensed consolidated statements of operations.

Certain assets and liabilities are measured at fair value on a nonrecurring basis and therefore are not included in the tables above.

The Company recognizes all transfers and the related unrealized gain (loss) at the beginning of the reporting period.

Transfers between level 1 and 2 generally relate to whether the principal market for the security becomes active or inactive. Transfers between level 2 and 3 generally relate to whether significant relevant observable inputs are available for the fair value measurements or due to change in liquidity restrictions for the investments.

During the three and nine months endedSeptember 30, 2016 and 2015, there were no transfers between level 1 and level 2 assets and liabilities.

The following table includes quantitative information as of September 30, 2016 and December 31, 2015 for financial instruments classified within level 3. The table below quantifies information about the significant unobservable inputs used in the fair value measurement of the Company's level 3 financial instruments.

	Quantitative Information about Level 3 Fair Value Measurements
	Fair Value at September 30, 2016		Valuation techniques	Unobservable Inputs	Range
Level 3 Assets	(dollars in thousands)
Common and preferred stocks	$	8,803	Market/transaction price and option pricing method Illiquidity discount, discounted cash flow	Volatility Market multiples Discount Discount rate	35% 4x to 9.5x 90% 9.5%
Corporate bonds	188		Discounted cash flows illiquidity discount	Discount rate Discount	20% 10%
Warrants and rights, net	3,649		Model based	Volatility	18% to 85% (weighted average 75%)
Options	12,961		Option pricing models	Volatility	40%
Other level 3 assets (a)	53,129
Total level 3 assets	78,730
Level 3 Liabilities
Options	12,961		Option pricing models	Volatility	40%
Contingent consideration	7,201		Discounted cash flows	Projected cash flow and discount rate	0% - 31% (weighted average 21%)
Total level 3 liabilities	$	20,162

	Quantitative Information about Level 3 Fair Value Measurements
	Fair Value at December 31, 2015		Valuation techniques	Unobservable Inputs	Range
Level 3 Assets	(dollars in thousands)
Common and preferred stocks	$	2,569	Market multiples and option pricing method	Volatility Market multiples	34% 1x to 4.75x
Convertible bonds	819		Recovery analysis	Recovery rate	50%
Warrants and rights, net	2,572		Model based	Volatility	18% to 61% (weighted average 43%)
Options	18,194		Option pricing models	Volatility Credit spreads	38%
Other level 3 assets (a)	45,880
Total level 3 assets	70,034
Level 3 Liabilities
Options	18,194		Option pricing models	Volatility Credit spreads	38%
Contingent consideration	6,158		Discounted cash flows	Projected cash flow and discount rate	6.6% - 24.5% (weighted average 16.4%)
Total level 3 liabilities	$	24,352

(a) The quantitative disclosures exclude financial instruments for which the determination of fair value is based on prices from prior transactions.

The Company has established valuation policies and procedures and an internal control infrastructure over its fair value measurement of financial instruments which includes ongoing oversight by the valuation committee as well as periodic audits performed by the Company's internal audit group. The valuation committee is comprised of senior management, including non-investment professionals, who are responsible for overseeing and monitoring the pricing of the Company's investments, including the review of the results of the independent price verification process, approval of new trading asset classes and use of applicable pricing models and approaches.

The US GAAP fair value leveling hierarchy is designated and monitored on an ongoing basis. In determining the designation, the Company takes into consideration a number of factors including the observability of inputs, liquidity of the investment and the significance of a particular input to the fair value measurement. Designations, models, pricing vendors, third party valuation providers and inputs used to derive fair market value are subject to review by the valuation committee and the internal audit group. The Company reviews its valuation policy guidelines on an ongoing basis and may adjust them in light of, improved valuation metrics and models, the availability of reliable inputs and information, and prevailing market conditions. The Company reviews a daily profit and loss report, as well as other periodic reports, and analyzes material changes from period-to-period in the valuation of its investments as part of its control procedures. The Company also performs back testing on a regular basis by comparing prices observed in executed transactions to previous valuations.

The fair market value for level 3 securities may be highly sensitive to the use of industry standard models, unobservable inputs and subjective assumptions. The degree of fair market value sensitivity is also contingent upon the subjective weight given to specific inputs and valuation metrics. The Company holds various equity and debt instruments where different weight may be applied to industry standard models representing standard valuation metrics such as: discounted cash flows, market multiples, comparative transactions, capital rates, recovery rates and timing, and bid levels. Generally, changes in the weights ascribed to the various valuation metrics and the significant unobservable inputs in isolation may result in significantly lower or higher fair value measurements. Volatility levels for warrants and options are not readily observable and subject to interpretation. Changes in capital rates, discount rates and replacement costs could significantly increase or decrease the valuation of the real estate investments. The interrelationship between unobservable inputs may vary significantly amongst level 3 securities as they are generally highly idiosyncratic. Significant increases (decreases) in any of those inputs in isolation can result in a significantly lower (higher) fair value measurement.

Other financial assets and liabilities

The following table presents the carrying values and fair values, at September 30, 2016 and December 31, 2015, of financial assets and liabilities and information on their classification within the fair value hierarchy which are not measured at fair value on a recurring basis. For additional information regarding the financial instruments within the scope of this disclosure, and the methods and significant assumptions used to estimate their fair value see Note 3.

	September 30, 2016						December 31, 2015						Fair Value Hierarchy
	Carrying Amount			Fair Value			Carrying Amount			Fair Value
				(dollars in thousands)
Financial Assets
Operating companies
Cash and cash equivalents	$	76,925		$	76,925		$	158,485		$	158,485		Level 1
Cash collateral pledged	13,783			13,783			10,085			10,085			Level 2
Consolidated funds
Cash and cash equivalents	10,370			10,370			13,934			13,934			Level 1
Financial Liabilities
Convertible debt	128,065		(a)	145,676		(b)	122,401		(a)	144,946		(b)	Level 2
Notes payable and other debt	78,357			84,257			68,565			71,945			Level 2

(a) The carrying amount of the convertible debt includes an unamortized discount of $19.6 million and $24.7 million as of September 30, 2016 and December 31, 2015.

(b) The convertible debt include the conversion option and is based on the last broker quote available.

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Receivables from and Payable to Brokers

9 Months Ended

Sep. 30, 2016

Brokers and Dealers [Abstract]

Receivables from and Payable to Brokers

Receivables from and Payable to Brokers

Receivables from and payable to brokers includes cash held at the clearing brokers, amounts receivable or payable for unsettled transactions, monies borrowed and proceeds from short sales (including commissions and fees related to securities transactions) equal to the fair value of securities sold, not yet purchased, which are restricted until the Company purchases the securities sold short. Pursuant to the master netting agreements the Company entered into with its brokers, these balances are presented net (assets less liabilities) across balances with the same broker. As of September 30, 2016 and December 31, 2015, receivable from brokers was $77.6 million and $117.8 million, respectively. Payable to brokers was $127.2 million and $131.8 million as of September 30, 2016 and December 31, 2015, respectively. The Company's receivables from and payable to brokers balances are held at multiple financial institutions.

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Goodwill and Intangibles

9 Months Ended

Sep. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangibles

Goodwill

In accordance with US GAAP, the Company tests goodwill for impairment on an annual basis or at an interim period if events or changed circumstances would more likely than not reduce the fair value of a reporting unit below its carrying amount. Under US GAAP, the Company first assesses the qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amounts as a basis for determining if it is necessary to perform the two-step approach. Periodically estimating the fair value of a reporting unit requires significant judgment and often involves the use of significant estimates and assumptions. These estimates and assumptions could have a significant effect on whether or not an impairment charge is recorded and the magnitude of such a charge.

In connection with the CRT transaction (See Note 2), in May 2016, the Company recognized goodwill of $3.5 million and intangible assets (including customer relationships, trade name, intellectual property and non-compete arrangements) with an estimated fair value of $5.1 million which are included within intangible assets, net in the condensed consolidation statements of financial condition with the expected useful lives ranging from 1 to 9 years with a weighted average useful life of 8.1 years. Amortization expense related to intangibles from the CRT acquisition for the three and nine months endedSeptember 30, 2016 is $0.2 million and $0.4 million respectively. Goodwill, which primarily relates to expected synergies from combining operations, is fully deductible for tax purposes and has been assigned to the broker-dealer segment of the Company.

On September 23, 2016, the Company and the portfolio managers of RASL completed the sale of their respective ownership interests in RASL, an investment advisor. In contemplation with the sale transaction, the Company allocated $1.2 million of goodwill to the RASL disposal group (See Note 2).

The Company performed an interim goodwill impairment analysis at the time of the sale transaction and no impairment charges for goodwill were recognized during the three and nine months endedSeptember 30, 2016 and 2015, respectively.

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Redeemable Non-Controlling Interests in Consolidated Subsidiaries and Funds

9 Months Ended

Sep. 30, 2016

Noncontrolling Interest [Abstract]

Redeemable Non-Controlling Interests in Consolidated Subsidiaries and Funds

Redeemable Non-Controlling Interests in Consolidated Subsidiaries and Funds

Redeemable non-controlling interests in consolidated subsidiaries and funds and the related net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds are comprised as follows:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Redeemable non-controlling interests in consolidated subsidiaries and funds
Operating companies	$	6,791	$	10,906
Consolidated funds	325,092		176,005
	$	331,883	$	186,911

	Three Months Ended September 30,					Nine Months Ended September 30,
	2016		2015			2016			2015
	(dollars in thousands)					(dollars in thousands)
Income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds
Operating companies	$	1,433	$	4,577		$	2,880		$	8,669
Consolidated funds	17,045		(233		)	(5,404		)	2,311
	$	18,478	$	4,344		$	(2,524	)	$	10,980

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Share-Based Compensation and Employee Ownership Plans

9 Months Ended

Sep. 30, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-Based Compensation and Employee Ownership Plans

Share-Based and Deferred Compensation and Employee Ownership Plans

The Company issues share based compensation under the 2006 Equity and Incentive Plan, the 2007 Equity and Incentive Plan (both established prior to the November 2009 transaction between Ramius and Cowen) and the Cowen Group, Inc. 2010 Equity and Incentive Plan (collectively, the “Equity Plans”). The Equity Plans permit the grant of options, restricted shares, restricted stock units, stock appreciation rights ("SAR's") and other equity based awards to the Company's employees and directors. Stock options granted generally vest over two-to-five-year periods and expire seven years from the date of grant. Restricted shares and restricted share units issued may be immediately vested or may generally vest over a two-to-five-year period. SAR's vest and expire after five years from grant date. Awards are subject to the risk of forfeiture. As of September 30, 2016, there were approximately 1.8 million shares available for future issuance under the Equity Plans.

Under the 2010 Equity Plan, the Company awarded $25.9 million of deferred cash awards to its employees during the nine months endedSeptember 30, 2016. These awards vest over a four year period and accrue interest between 0.70% to 0.75% per year. As of September 30, 2016, the Company had unrecognized compensation expense related to deferred cash awards of $37.3 million.

The Company measures compensation cost for share based awards according to the equity method. In accordance with the expense recognition provisions of those standards, the Company amortizes unearned compensation associated with share based awards on a straight-line basis over the vesting period of the option or award. In relation to awards under the Equity Plans, the Company recognized compensation expense of $6.2 million and $5.3 million for the three months ended September 30, 2016 and 2015 and $19.3 million and $16.2 million for the nine months endedSeptember 30, 2016 and 2015, respectively. The income tax effect recognized for the Equity Plans was a benefit of $2.5 million and $2.1 million for the three months ended September 30, 2016 and 2015 and $8.6 million and $2.8 million for the nine months endedSeptember 30, 2016 and 2015, respectively.

Stock Options and Stock Appreciation Rights

The Company values options and SAR's on grant date using the Black-Scholes valuation model which requires the Company to make assumptions regarding the expected term, volatility, risk-free rate and dividend yield:

Expected term.    Expected term represents the period of time that awards granted are expected to be outstanding. The Company elected to use the "simplified" calculation method, as applicable to companies that lack extensive historical data. The mid-point between the vesting date and the contractual expiration date is used as the expected term under this method.

Expected volatility.    The Company bases its expected volatility on its own stock price history.

Risk free rate.    The risk-free rate for periods within the expected term of the award is based on the interest rate of a traded zero-coupon U.S. Treasury bond with a term equal to the awards' expected term on the date of grant.

Dividend yield.    The Company has not paid and does not expect to pay dividends in the foreseeable future. Accordingly, the assumed dividend yield is zero.

The following table summarizes the Company's stock option activity for the nine months endedSeptember 30, 2016:

	Shares Subject to Option	Weighted Average Exercise Price/Share		Weighted Average Remaining Term	Aggregate Intrinsic Value(1)
				(in years)	(dollars in thousands)
Balance outstanding at December 31, 2015	16,667	$	4.89	1.10	$	—
Options granted	—	—		—	—
Options exercised	—	—		—	—
Options expired	—	—		—	—
Balance outstanding at September 30, 2016	16,667	$	4.89	0.35	$	—
Options exercisable at September 30, 2016	16,667	$	4.89	0.35	$	—

(1) Based on the Company's closing stock price of $3.63 on September 30, 2016 and $3.83 on December 31, 2015.

As of September 30, 2016, the Company's stock options were fully expensed.

The following table summarizes the Company's SAR's for the nine months endedSeptember 30, 2016:

	Shares Subject to Option	Weighted Average Exercise Price/Share		Weighted Average Remaining Term	Aggregate Intrinsic Value(1)
				(in years)	(dollars in thousands)
Balance outstanding at December 31, 2015	400,000	$	2.90	2.21	$	558
SAR's granted	—	—		—	—
SAR's acquired	—	—		—	—
SAR's expired	—	—		—	—
Balance outstanding at September 30, 2016	400,000	$	2.90	1.46	$	430
SAR's exercisable at September 30, 2016	—	$	—	—	$	—

(1) Based on the Company's closing stock price of $3.63 on September 30, 2016 and $3.83 on December 31, 2015.

As of September 30, 2016 and December 31, 2015, the unrecognized compensation expense related to the Company's grant of SAR's was $0.1 million and $0.1 million, respectively.

Restricted Shares and Restricted Stock Units Granted to Employees

Restricted shares and restricted stock units are referred to collectively as restricted stock. The following table summarizes the Company's restricted share and restricted stock unit activity for the nine months endedSeptember 30, 2016:

	Nonvested Restricted Shares and Restricted Stock Units		Weighted-Average Grant Date Fair Value
Balance outstanding at December 31, 2015	21,480,364		$	4.17
Granted	8,087,610		3.48
Vested	(5,912,240	)	3.74
Canceled	—		—
Forfeited	(1,291,693	)	3.72
Balance outstanding at September 30, 2016 (1)	22,364,041		$	4.06

(1) Performance linked restricted stock units of 1,925,750 were awarded to employees of the Company in December 2013 and January 2014. An additional 2,800,000 performance linked restricted stock units were awarded in March 2016. Of the awards granted, 387,500 have been forfeited through September 30, 2016. The remaining awards, included in the outstanding balance as of September 30, 2016, will vest between March 2019 and December 2020 and will be earned only to the extent that the Company attains specified market goals relating to its volume-weighted average share price and total shareholder return in relation to certain benchmark indices and performance goals relating to aggregate net income and average return on shareholder equity. The actual number of RSUs ultimately earned could vary from zero, if performance goals are not met, to as much as 150% of the targeted award. Each RSU is equal to the one share of the Company’s Class A common stock. Compensation expense is recognized to the extent that it is probable that the Company will attain the performance goals.

The fair value of restricted stock (excluding performance linked units which are valued using the Monte Carlo valuation model) is determined based on the number of shares granted and the quoted price of the Company's common stock on the date of grant.

As of September 30, 2016, there was $65.3 million of unrecognized compensation expense related to the Company's grant of nonvested restricted shares and restricted stock units to employees. Unrecognized compensation expense related to nonvested restricted shares and restricted stock units granted to employees is expected to be recognized over a weighted-average period of 2.69 years.

Restricted Shares and Restricted Stock Units Granted to Non-employee Board Members

There were 224,398 restricted stock units awarded during the nine months endedSeptember 30, 2016. As of September 30, 2016 there were 648,704 restricted stock units outstanding.

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Income Taxes

9 Months Ended

Sep. 30, 2016

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The taxable results of the Company’s U.S. operations are included in the consolidated income tax returns of Cowen Group, Inc. as well as stand-alone state and local tax returns. The Company has subsidiaries that are resident in foreign countries where tax filings have to be submitted on a stand‑alone basis. These subsidiaries are subject to tax in their respective countries and the Company is responsible for and, thus, reports all taxes incurred by these subsidiaries. The countries where the Company owns subsidiaries that file tax returns are United Kingdom, Luxembourg, Gibraltar, and Hong Kong.

The Company calculates its U.S. tax provision using the estimated annual effective tax rate methodology. The tax expense or benefit caused by an unusual or infrequent item is recorded in the quarter in which it occurs. The Company uses the discrete methodology to calculate its income tax provision for its foreign subsidiaries. Based on these methodologies, the Company’s effective income tax rate was 24.77% and 17.81% for the nine months endedSeptember 30, 2016 and 2015, respectively. During the nine months endedSeptember 30, 2016, the unusual or infrequent items whose tax impact were recorded discretely related primarily to Federal, state taxes and the tax provisions of the Company’s foreign subsidiaries.

For the nine months endedSeptember 30, 2016 and 2015, the effective tax rate differs from the statutory rate of 35% primarily due to disposal of investment, state and foreign taxes, as well as other nondeductible expenses.

The Company records deferred tax assets and liabilities for the future tax benefit or expense that will result from differences between the carrying value of its assets for income tax purposes and for financial reporting purposes, as well as for operating or capital loss and tax credit carryovers. A valuation allowance is recorded to bring the net deferred tax assets to a level that, in management's view, is more likely than not to be realized in the foreseeable future. This level will be estimated based on a number of factors, especially the amount of net deferred tax assets of the Company that are actually expected to be realized, for tax purposes, in the foreseeable future. As of September 30, 2016, the Company recorded a valuation allowance against deferred tax assets related to its foreign net operating losses.

The Company is subject to examination by the United States Internal Revenue Service, the United Kingdom Inland Revenue Service, the Luxembourg Tax Office as well as state, local and foreign tax authorities in jurisdictions where the Company has significant business operations, such as New York. Currently, the Company is under audit by New York State for the 2010 to 2012 tax years. Management is not expecting a material tax liability from this audit.

The Company intends to permanently reinvest the capital and accumulated earnings of its foreign subsidiaries in the respective subsidiary, but remits the current earnings of its foreign subsidiaries to the United States to the extent permissible under local regulatory rules. The undistributed earnings of the Company’s foreign subsidiaries totaled$1.1 million and $1.0 million as of September 30, 2016 and December 31, 2015, respectively, and the tax liability that would arise if these earnings were remitted to the United States would be approximately$0.2 million and $0.1 million, respectively.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2016

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Lease Obligations

The Company has entered into leases for office space and equipment. These leases contain rent escalation clauses. The Company records rent expense on a straight-line basis over the lease term, including any rent holiday periods. Rent expense was $4.9 million and $4.6 million for the three months ended September 30, 2016 and 2015 and $15.4 million and $13.3 million for the nine months endedSeptember 30, 2016 and 2015, respectively.

As of September 30, 2016, future minimum annual lease and service payments for the Company were as follows:

	Equipment Leases (a)		Service Payments		Facility Leases (b)
	(dollars in thousands)
2016	$	606	$	4,703	$	4,690
2017	2,404		13,752		16,663
2018	2,324		7,395		16,578
2019	897		2,136		14,981
2020	2		142		14,814
Thereafter	—		21		32,250
	$	6,233	$	28,149	$	99,976

(a) Equipment Leases include the Company's commitments relating to operating and capital leases. See Note 13 for further information on the capital lease minimum payments which are included in the table.

(b) The Company has entered into various agreements to sublease certain of its premises. The Company recorded sublease income related to these leases of $0.4 million and $0.5 million for the three months ended September 30, 2016 and 2015 and $1.7 million and $1.4 million and for the nine months endedSeptember 30, 2016 and 2015, respectively.

Clawback Obligations

For financial reporting purposes, the general partners of a real estate fund have recorded a liability for potential clawback obligations to the limited partners, due to changes in the unrealized value of the fund's remaining investments and where the fund's general partner has previously received carried interest distributions.The clawback liability, however, is not realized until the end of the fund's life.The life of the real estate funds with a potential clawback obligation is currently in a winding-up phase whereby the remaining assets of the fund are being liquidated as promptly as possible so as to maximize value, however a final date for liquidation has not been set.The fund is currently winding-down and as of both September 30, 2016 and December 31, 2015, and the clawback obligation was $6.2 million.

The Company serves as the general partner/managing member and/or investment manager to various affiliated and sponsored funds. As such, the Company is contingently liable for obligations for those entities. These amounts are not included above as the Company believes that the assets in these funds are sufficient to discharge any liabilities.

Unfunded Commitments

As of September 30, 2016, the Company had unfunded commitments of$7.4 millionpertaining to capital commitments infourreal estate investments held by the Company, all of which pertain to related party investments. Such commitments can be called at any time, subject to advance notice. The Company, as a limited partner of the HealthCare Royalty Partners funds and also as a member of HealthCare Royalty Partners General Partners, has committed to invest $45.8 millionin the Healthcare Royalty Partners funds which are managed by Healthcare Royalty Management. This commitment is expected to be called over atwo tofive year period. The Company will make its pro-rata investment in the HealthCare Royalty Partners funds along with the other limited partners. ThroughSeptember 30, 2016, the Company has funded$37.9 milliontowards these commitments.As of September 30, 2016, the Company had an unfunded commitment to Eclipse Ventures Fund I, L.P. (formerly Formation8 Partners Hardware Fund I, L.P.) of$0.9 million. The remaining capital commitment is expected to be called over aoneyear period. As of September 30, 2016, the Company had an unfunded commitment to Lagunita Biosciences, LLC of$3.5 million. The remaining capital commitment is expected to be called over a three-year period.As of September 30, 2016, the Company had an unfunded commitment to Eclipse Fund II, L.P. of$1.0 million. The remaining capital commitment is expected to be called over aneight year period. As of September 30, 2016, the Company had an unfunded commitment to Eclipse Continuity Fund I, L.P. of $0.9 million. The remaining capital commitment is expected to be called over aneight year period.

Litigation

In the ordinary course of business, the Company and its affiliates and subsidiaries and current and former officers, directors and employees (the "Company and Related Parties") are named as defendants in, or as parties to, various legal actions and proceedings. Certain of these actions and proceedings assert claims or seek relief in connection with alleged violations of securities, banking, anti-fraud, anti-money laundering, employment and other statutory and common laws. Certain of these actual or threatened legal actions and proceedings include claims for substantial or indeterminate compensatory or punitive damages, or for injunctive relief.

In the ordinary course of business, the Company and Related Parties are also subject to governmental and regulatory examinations, information gathering requests (both formal and informal), certain of which may result in adverse judgments, settlements, fines, penalties, injunctions or other relief. Certain affiliates and subsidiaries of the Company are investment banks, registered broker-dealers, futures commission merchants, investment advisers or other regulated entities and, in those capacities, are subject to regulation by various U.S., state and foreign securities, commodity futures and other regulators. In connection with formal and informal inquiries by these regulators, the Company and such affiliates and subsidiaries receive requests, and orders seeking documents and other information in connection with various aspects of their regulated activities.

Due to the global scope of the Company's operations, and its presence in countries around the world, the Company and Related Parties may be subject to litigation, and governmental and regulatory examinations, information gathering requests, investigations and proceedings (both formal and informal), in multiple jurisdictions with legal and regulatory regimes that may differ substantially, and present substantially different risks, from those the Company and Related Parties are subject to in the United States.

The Company seeks to resolve all litigation and regulatory matters in the manner management believes is in the best interests of the Company and its shareholders, and contests liability, allegations of wrongdoing and, where applicable, the amount of damages or scope of any penalties or other relief sought as appropriate in each pending matter.

In accordance with US GAAP, the Company establishes reserves for contingencies when the Company believes that it is probable that a loss has been incurred and the amount of loss can be reasonably estimated. The Company discloses a contingency if there is at least a reasonable possibility that a loss may have been incurred and there is no reserve for the loss because the conditions above are not met. The Company's disclosure includes an estimate of the reasonably possible loss or range of loss for those matters, for which an estimate can be made. Neither a reserve nor disclosure is required for losses that are deemed remote.     

The Company appropriately reserves for certain matters where, in the opinion of management, the likelihood of liability is probable and the extent of such liability is reasonably estimable. Such amounts are included within accounts payable, accrued expenses and other liabilities in theaccompanying condensed consolidated statements of financial condition. Estimates, by their nature, are based on judgment and currently available information and involve a variety of factors, including, but not limited to, the type and nature of the litigation, claim or proceeding, the progress of the matter, the advice of legal counsel, the Company's defenses and its experience in similar cases or proceedings as well as its assessment of matters, including settlements, involving other defendants in similar or related cases or proceedings. The Company may increase or decrease its legal reserves in the future, on a matter-by-matter basis, to account for developments in such matters. The Company accrues legal fees as incurred.

On May 28, 2014, Energy Intelligence Group, Inc. and Energy Intelligence Group UK (collectively, "EIG") filed a lawsuit against Cowen and Company, LLC in the United States Court for the Southern District of New York (Energy Intelligence Group, Inc. and Energy Intelligence Group UK v. Cowen and Company, LLC, No. 14-CV-3789). The complaint alleges copyright infringement based on alleged impermissible distribution of EIG's publication, Oil Daily, by Cowen and Company and Dahlman Rose & Company, LLC, as Cowen's alleged predecessor-in-interest. EIG is seeking statutory damages based on alleged willful infringement of their copyrights. On November 12, 2014, the Company filed an answer and affirmative defenses to the EIG complaint.  On September 25, 2015, the Company filed its motion for partial summary judgment to dismiss certain of EIG’s claims relating to Dahlman Rose’s alleged copyright infringement.  During the second quarter the Company also filed a motion to disqualify EIG’s copyright counsel based on a conflict of interest.  Both of the Company’s motions were heard in the second quarter of 2016.  On July 15, 2016 the District Court ruled in favor of the Company on both of its motions.  The Company and EIG entered into a settlement agreement on September 30, 2016, pursuant to which EIG agreed to dismiss its lawsuit with prejudice. The settlement amount paid by the Company and the current period impact of the settlement was not material to the Company’s financial position or the results of operations for the three and nine months ended September 30, 2016. The dismissal of the lawsuit was approved by the District Court on October 4, 2016.

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Convertible Debt and Notes Payable

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Convertible Debt and Notes Payable

Convertible Debt and Notes Payable

As of September 30, 2016 and December 31, 2015, the Company's outstanding debt was as follows:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Convertible debt	$	128,065	$	122,401
Note payable	61,145		60,831
Other notes payable	15,166		—
Revolver	—		5,000
Capital lease obligations	2,046		2,734
	$	206,422	$	190,966

Convertible Debt

On March 10, 2014, the Company issued$149.5 million of 3.0%cash convertible senior notes ("Convertible Notes"). The Convertible Notes are due on March 15, 2019 unless earlier repurchased by the Company or converted by the holder into cash in accordance with their terms prior to such date. The interest on the Convertible Notes is payable semi-annually on March 15 and September 15 of each year. The Convertible Notes are senior unsecured obligations and rank senior in right of payments to other obligations. The Convertible Notes may be converted into cash, upon the occurrence of certain events, whereby a holder will receive, per$1,000principal amount of notes being converted, an amount equal to the sum of principal amount outstanding and the conversion amount based on the current conversion price (the "Conversion Option"). The Convertible Notes were issued with an initial conversion price of $5.33per share.

The Company recorded interest expense of$1.1 million and $1.1 million for the three months ended September 30, 2016and2015 and $3.4 million and $3.4 millionfor thenine months endedSeptember 30, 2016and2015, respectively.The initial unamortized discount on the Convertible Notes was$35.7 millionand is shown net in convertible debt in the accompanying condensed consolidated statements of financial condition.Amortization on the discount, included within interest expense in the accompanying condensed consolidated statements of operations is$1.7 million and $1.6 million for the three months ended September 30, 2016and2015 and $5.1 millionand$4.7 million for the nine months endedSeptember 30, 2016 and 2015, respectively, based on an effective interest rate of 8.89%. The Company capitalized the debt issuance costs in the amount of$3.7 million, which is a direct deduction from the carrying value of the debt and will be amortized over the life of the Convertible Notes.

Of the net proceeds from the sale of the Convertible Notes, approximately$20.5 millionwas applied to pay the net cost of a cash convertible note economic hedge and warrant transaction which increases the effective conversion price to$7.18 (see Note 5), and approximately$0.3 millionwas applied to repurchase shares of Cowen Class A common stock. The remainder of the net proceeds is being used for general corporate purposes.

Note Payable

On October 10, 2014 the Company completed its public offering of$63.3 millionaggregate principal amount of8.25%senior notes due on October 15, 2021 ("2021 Notes").Interest on the 2021 Notes is payable quarterly in arrears on January 15, April 15, July 15 and October 15, commencing on January 15, 2015.The Company recorded interest expense of$1.3 million and $1.3 million for the three months ended September 30, 2016and2015 and $3.9 million and $3.9 millionfor thenine months endedSeptember 30, 2016 and 2015, respectively. The Company capitalized debt issuance costs of approximately$2.9 millionwhich is a direct deduction from the carrying value of the debt and will be amortized over the life of the 2021 Notes.

Other Notes Payable

During January 2016, the Company borrowed$2.0 millionto fund insurance premium payments. This note has an effective interest rate of 1.38%and is due on December 31, 2016, with monthly payment requirements of$0.2 million. As of September 30, 2016, the outstanding balance on this note payable was$0.4 million. Interest expense for thethree and nine months endedSeptember 30, 2016was insignificant.

During the second quarter of 2016, the Company entered into financing for two of its aircraft and acquired additional debt when four other aircraft were acquired (See Note 2). The aircraft financing, net of debt costs, is recorded in notes payable and short-term borrowings in the accompanying condensed consolidated statements of financial condition. The debt maturities ranged from February 2017 to May 2021 and interest rates ranged from4.80%to7.25%. As of September 30, 2016, the remaining balance on the aircraft financing agreements was$14.8 million. Interest expense was$0.2 million and $0.5 million for the three and nine months endedSeptember 30, 2016, respectively.

Revolver

On July 31, 2015, the Company entered into a$25.0 million364day revolving unsecured credit facility with multiple financial institutions primarily for working capital management. On July 29, 2016, the Company amended its credit facility to, among other things, extend the existing stated maturity thereof from August 3, 2016 to September 29, 2016, reduce the aggregate revolving commitments thereunder from$25 million to $15 millionand make future draws on the revolver during the extension period subject to the sole discretion of the lenders thereunder. In connection with the amendment, the Company repaid all outstanding amounts under the credit facility. The revolving unsecured credit facility terminated in accordance with its terms on September 29, 2016. Interest accrued on borrowed funds at LIBOR plus3.0%and interest accrued on the undrawn facility amount at LIBOR plus0.38%. Interest expense for the three and nine months endedSeptember 30, 2016 was $0.1 million and $0.4 million and interest expense for the three and nine months endedSeptember 30, 2015 was $0.2 million and $0.2 million, respectively.

Capital Lease Obligations

The Company entered into several capital leases for computer equipment during the fourth quarter of 2010 and one in January 2014. These leases amounted to$7.6 millionand are recorded in fixed assets and as capital lease obligations, which are included in short-term borrowings and other debt in the accompanying condensed consolidated statements of financial condition, and have lease terms that range from48 to 60months and interest rates that range from 0.60% to 6.03%. As ofSeptember 30, 2016, the remaining balance on these capital leases was$2.0 million. Interest expense was$0.1 million and $0.1 million for the three months ended September 30, 2016and2015 and $0.1 million and $0.1 million for the nine months endedSeptember 30, 2016 and 2015, respectively.

Annual scheduled maturities of debt and minimum payments for all debt outstanding as of September 30, 2016, is as follows:

	Convertible Debt			Note Payable			Other Note Payable			Capital Lease Obligation
	(dollars in thousands)
2016	$	—		$	1,304		$	1,221		$	235
2017	4,485			5,218			4,225			938
2018	4,485			5,218			2,225			938
2019	151,743			5,218			3,702			78
2020	—			5,218			1,805			—
Thereafter	—			68,468			4,723			—
Subtotal	160,713			90,644			17,901			2,189
Less: Amount representing interest (a)	(32,648		)	(29,499		)	(2,735		)	(143		)
Total	$	128,065		$	61,145		$	15,166		$	2,046

(a) Amount necessary to reduce net minimum payments to present value calculated at the Company's implicit rate at inception. This amount also includes the unamortized discount on the convertible debt.

Letters of Credit

As of September 30, 2016, the Company has nineirrevocable letters of credit, related to leased office space, for which there is cash collateral pledged, which the Company pays a fee on the stated amount of the letter of credit. The Company also has a letter of credit, in the amount of$5.5 million, due March 2017, for which cash is pledged as collateral under a reinsurance agreement.

Location	Amount		Maturity
	(dollars in thousands)
New York	$	355	May 2017
New York	$	70	May 2017
New York	$	695	October 2016
New York	$	3,373	October 2016
New York	$	1,600	November 2016
San Francisco	$	710	January 2017
Connecticut	$	65	January 2017
New York	$	1,000	February 2017
Boston	$	382	March 2017

To the extent any letter of credit is drawn upon, interest will be assessed at the prime commercial lending rate. As of September 30, 2016 and December 31, 2015, there were no amounts due related to these letters of credit.

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Stockholder's Equity

9 Months Ended

Sep. 30, 2016

Equity [Abstract]

Stockholder's Equity

Stockholder's Equity

Preferred Stock and Purchase of Capped Call Option

On May 19, 2015, the Company completed its offering of120,750shares of the Company's5.625%Series A cumulative perpetual convertible preferred stock ("Series A Convertible Preferred Stock") that provided$117.2 millionof proceeds, net of underwriting fees and issuance costs of$3.6 million. Each share of the Series A Convertible Preferred Stock is entitled to dividends at a rate of5.625%per annumwhich will be payable, when and if declared by the board of directors of the Company, quarterly, in arrears, on February 15, May 15, August 15 and November 15 of each year. The Company may, at its option, pay dividends in cash, common stock or a combination thereof. During the nine months endedSeptember 30, 2016 the Company declared and accrued a cash dividend of $5.1 million.

Each share of Series A Convertible Preferred Stock is non-voting and has a liquidity preference over the Company's Class A common stock and ranks senior to all classes or series of the Company's Class A common stock, but junior to all of the Company's existing and future indebtedness with respect to divided rights and rights upon the Company's involuntary liquidation, dissolution or winding down.

Each share of Series A Convertible Preferred Stock is convertible, at the option of the holder, into a number of shares of our Class A common stock equal to the liquidation preference of$1,000divided by the conversion rate. The initial conversion rate is152.2476shares(which equates to$6.57 per share)of the Company's Class A common stock for each share of the Series A Convertible Preferred Stock. At any time on or after May 20, 2020, the Company may elect to convert all outstanding shares of the Series A Convertible Preferred Stock into shares of the Company’s Class A common stock, cash or a combination thereof, at the Company’s election, in each case, based on the then-applicable conversion rate, if the last reported sale price of the Company’s Class A common stock equals or exceeds 150%of the then-current conversion price on at least20trading days (whether or not consecutive) during the period of30consecutive trading days (including on the last trading day of such period) immediately prior to such election. At the time of conversion, the conversion rate may be adjusted based on certain events including but not limited to the issuance of cash dividends or Class A common stock as a dividends to the Company's Class A common shareholders or a share split or combination.

In connection with the issuance and sale of the Series A Convertible Preferred Stock, the Company entered into a privately negotiated capped call option transaction (the “Capped Call Option Transaction”) with Nomura Global Financial Products Inc. (the “option counterparty”) for$15.9 million. The Capped Call Option Transaction is expected generally to reduce the potential dilution to the Company’s Class A common stock (if the Company elects to convert to common shares) and/or offset any cash payments that the Company is required to make upon conversion of any Series A Convertible Preferred Stock. The Capped Call Option Transaction has an initial effective strike price of$6.57 per share, which matches the initial conversion price of the Series A Convertible Preferred Stock, and a cap price of$8.39per share. However, to the extent that the market price of Class A common stock, as measured under the terms of the Capped Call Option Transaction, exceeds the cap price thereof, there would nevertheless be dilution and/or such cash payments would not be offset. As the Capped Call Option Transaction is a free standing derivative that is indexed to the Company's own stock price and the Company controls if it is settled in cash or stock it qualifies for equity classification as a reduction to additional paid in capital.

Treasury Stock

Treasury stock of $152.2 million as of September 30, 2016, compared to $137.4 million as of December 31, 2015, resulted from $8.8 million acquired through repurchases of shares to cover employee minimum tax withholding obligations related to stock compensation vesting events under the Company's Equity Plan or other similar transactions and $6.0 million purchased in connection with a share repurchase program.

The following represents the activity relating to the treasury stock held by the Company during the nine months endedSeptember 30, 2016:

	Treasury stock shares	Cost (dollars in thousands)		Average cost per share
Balance outstanding at December 31, 2015	34,515,734	$	137,356	$	3.98
Shares purchased for minimum tax withholding under the Equity Plan or other similar transactions	2,578,819	8,793		3.41
Purchase of treasury stock	1,723,119	6,014		3.49
Balance outstanding at September 30, 2016	38,817,672	$	152,163	$	3.92

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Accumulated Other Comprehensive Income (Loss) (Notes)

9 Months Ended

Sep. 30, 2016

Accumulated Other Comprehensive Income / (Loss) [Abstract]

Accumulated other comprehensive income (loss)

Accumulated Other Comprehensive Income (Loss)

Accumulated other comprehensive income includes the after tax change in unrealized gains and losses on foreign currency translation adjustments. During the periods presented, the Company did not have material reclassifications out of other comprehensive income.

	Nine Months Ended September 30,
	2016			2015
	(dollars in thousands)
Beginning Balance	$	—		$	17
Foreign currency translation	(3		)	(4		)
Ending Balance	$	(3	)	$	13

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Earnings Per Share

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

The Company calculates its basic and diluted earnings per share in accordance with US GAAP. Basic earnings per share is calculated by dividing net income attributable to the Company's common stockholders by the weighted average number of common shares outstanding for the period. As of September 30, 2016, there were 107,314,157 shares outstanding. The Company has included 648,704 fully vested, unissued restricted stock units in its calculation of basic earnings per share.

Diluted earnings per common share are calculated by adjusting the weighted average outstanding shares to assume conversion of all potentially dilutive items. The Company uses the treasury stock method to reflect the potential dilutive effect of the warrants (see Note 5(a)), unexercised stock options, unvested restricted shares, restricted stock units, and SAR's. In calculating the number of dilutive shares outstanding, the shares of common stock underlying unvested restricted shares and restricted stock units are assumed to have been delivered, and options and warrants are assumed to have been exercised, on the grant date. The assumed proceeds from the assumed vesting, delivery and exercising were calculated as the sum of (a) the amount of compensation cost attributed to future services and not yet recognized and (b) the amount of tax benefit that would be credited to additional paid-in capital assuming vesting and delivery of the shares. The tax benefit is the amount resulting from a tax deduction for compensation in excess of compensation expense recognized for financial statement reporting purposes. All outstanding stock options, SAR's, unvested restricted shares and warrants were not included in the computation of diluted net income (loss) per common share for the three and nine months ended September 30, 2016 as their inclusion would have been anti-dilutive. The Company can elect to settle the Series A Convertible Preferred Stock in shares, cash, or a combination of both. The Company's intent is to settle in cash and, based on current and projected liquidity needs, the Company has the ability to do so.

The computation of earnings per share is as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
	(dollars in thousands, except per share data)
Net income (loss)	$	15,259		$	(6,002	)	$	(19,897	)	$	24,048
Net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	18,478			4,344			(2,524		)	10,980
Net income (loss) attributable to Cowen Group, Inc.	(3,219		)	(10,346		)	(17,373		)	13,068
Preferred stock dividends	1,698			1,603			5,094			2,358
Net income (loss) attributable to Cowen Group, Inc. common stockholders	$	(4,917	)	$	(11,949	)	$	(22,467	)	$	10,710
Shares for basic and diluted calculations:
Weighted average shares used in basic computation	107,974			109,191			107,272			111,050
Stock options	—			—			—			19
Performance based restricted stock	—			—			—			266
Stock appreciation rights	—			—			—			152
Restricted stock	—			—			—			5,762
Weighted average shares used in diluted computation	107,974			109,191			107,272			117,249
Earnings (loss) per share:
Basic	$	(0.05	)	$	(0.11	)	$	(0.21	)	$	0.10
Diluted	$	(0.05	)	$	(0.11	)	$	(0.21	)	$	0.09

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Segment Reporting

9 Months Ended

Sep. 30, 2016

Segment Reporting [Abstract]

Segment Reporting

Segment Reporting

The Company conducts its operations through two segments: the alternative investment segment and the broker‑dealer segment. These activities are conducted primarily in the United States and substantially all of its revenues are generated domestically. The performance measure for these segments is Economic Income (Loss), which management uses to evaluate the financial performance of and make operating decisions for the segments including determining appropriate compensation levels. Expenses not directly associated with specific segments are allocated based on the most relevant measures applicable, including headcount, square footage and other factors.

In general, Economic Income (Loss) is a pre-tax measure that (i) eliminates the impact of consolidation for consolidated funds (ii) excludes goodwill and intangible impairment (iii) excludes certain other acquisition-related adjustments and/or reorganization expenses and (iv) excludes preferred stock dividends. In addition, Economic Income (Loss) revenues include investment income that represents the income the Company has earned in investing its own capital, including realized and unrealized gains and losses, interest and dividends, net of associated investment related expenses. For US GAAP purposes, these items are included in each of their respective line items. Economic Income (Loss) revenues also include management fees, incentive income and investment income earned through the Company's investment as a general partner in certain real estate entities and the Company's investment in the activist business. For US GAAP purposes, all of these items are recorded in other income (loss). In addition, Economic Income (Loss) expenses are reduced by reimbursement from affiliates, which for US GAAP purposes is presented gross as part of revenue.

As further stated below, one major difference between Economic Income (Loss) and US GAAP net income (loss) is that Economic Income (Loss) presents the segments' results of operations without the impact resulting from the full consolidation of any of the Consolidated Funds. Consolidation of these funds results in including in income the pro rata share of the income or loss attributable to other owners of such entities which is reflected in net income (loss) attributable to redeemable non-controlling interest in consolidated subsidiaries in the accompanying condensed consolidated statements of operations. This pro rata share has no effect on the overall financial performance for the alternative investment segment, as ultimately, this income or loss is not income or loss for the alternative investment segment itself. Included in Economic Income (Loss) is the actual pro rata share of the income or loss attributable to the Company as an investor in such entities, which is relevant in management making operating decisions and evaluating financial performance.

The following tables set forth operating results for the Company's alternative investment and broker-dealer segments and related adjustments necessary to reconcile the Company's Economic Income (Loss) measure to arrive at the Company's consolidated US GAAP net income (loss):

	Three Months Ended September 30, 2016
									Adjustments
	Alternative Investment			Broker-Dealer		Total Economic Income/(Loss)			Funds Consolidation			Other Adjustments				US GAAP
	(dollars in thousands)
Revenues
Investment banking	$	—		$	36,722	$	36,722		$	—		$	—			$	36,722
Brokerage	—			51,524		51,524			—			(1,919		)		49,605
Management fees	15,746			793		16,539			(445		)	(5,822		)	(a)	10,272
Incentive income	11,825			—		11,825			(562		)	(9,979		)	(a)	1,284
Investment Income	14,798			4,932		19,730			—			(19,730		)	(c)	—
Interest and dividends	—			—		—			—			3,906			(c)	3,906
Aircraft lease revenue	—			—		—			—			1,089			(f)	1,089
Reimbursement from affiliates	—			—		—			(76		)	2,216			(e)	2,140
Other revenue	17,145			25		17,170			—			7,942			(c)(f)	25,112
Consolidated Funds revenues	—			—		—			897			—				897
Total revenues	59,514			93,996		153,510			(186		)	(22,297		)		131,027
Expenses
Non interest expense	43,589			92,259		135,848			(429		)	12,759			(b)(c)(d)	148,178
Interest and dividends	3,205			1,079		4,284			—			3,328			(c)	7,612
Consolidated Funds expenses	—			—		—			2,469			—				2,469
Total expenses	46,794			93,338		140,132			2,040			16,087				158,259
Total other income (loss)	—			—		—			19,269			31,981			(c)	51,250
Income taxes expense / (benefit)	—			—		—			—			8,759			(b)	8,759
(Income) loss attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	(2,354		)	—		(2,354		)	(17,043		)	919				(18,478		)
Economic Income (Loss) / Net Income (loss) attributable to Cowen Group, Inc.	$	10,366		$	658	$	11,024		$	—		$	(14,243	)		$	(3,219	)

	Three Months Ended September 30, 2015
										Adjustments
	Alternative Investment			Broker-Dealer			Total Economic Income/(Loss)			Funds Consolidation			Other Adjustments				US GAAP
	(dollars in thousands)
Revenues
Investment banking	$	—		$	53,012		$	53,012		$	—		$	—			$	53,012
Brokerage	18			41,857			41,875			—			(790		)		41,085
Management fees	17,739			282			18,021			(371		)	(7,131		)	(a)	10,519
Incentive income	(8,629		)	—			(8,629		)	29			8,693			(a)	93
Investment Income	(16,781		)	(5,243		)	(22,024		)	—			22,024			(c)	—
Interest and dividends	—			—			—			—			3,604			(c)	3,604
Reimbursement from affiliates	—			—			—			(85		)	3,440			(e)	3,355
Other revenue	(9		)	573			564			—			748			(c)	1,312
Consolidated Funds revenues	—			—			—			274			—				274
Total revenues	(7,662		)	90,481			82,819			(153		)	30,588				113,254
Expenses
Non interest expense	6,133			84,721			90,854			—			2,112			(b)(c)(d)	92,966
Interest and dividends	2,970			1,287			4,257			—			3,110			(c)	7,367
Consolidated Funds expenses	—			—			—			634			—				634
Total expenses	9,103			86,008			95,111			634			5,222				100,967
Total other income (loss)	—			—			—			554			(23,924		)	(c)	(23,370		)
Income taxes expense / (benefit)	—			—			—			—			(5,081		)	(b)	(5,081		)
(Income) loss attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	(2,231		)	—			(2,231		)	233			(2,346		)		(4,344		)
Economic Income (Loss) / Net Income (loss) attributable to Cowen Group, Inc.	$	(18,996	)	$	4,473		$	(14,523	)	$	—		$	4,177			$	(10,346	)

	Nine Months Ended September 30, 2016
										Adjustments
	Alternative Investment			Broker-Dealer			Total Economic Income/(Loss)			Funds Consolidation			Other Adjustments				US GAAP
	(dollars in thousands)
Revenues
Investment banking	$	—		$	98,156		$	98,156		$	—		$	—			$	98,156
Brokerage	—			153,417			153,417			—			(5,777		)		147,640
Management fees	47,604			2,334			49,938			(1,239		)	(16,748		)	(a)	31,951
Incentive income	19,174			—			19,174			(569		)	(15,782		)	(a)	2,823
Investment Income	(444		)	(147		)	(591		)	—			591			(c)	—
Interest and dividends	—			—			—			—			11,664			(c)	11,664
Aircraft lease revenue	—			—			—			—			3,071			(f)	3,071
Reimbursement from affiliates	—			—			—			(224		)	8,492			(e)	8,268
Other revenue	19,366			84			19,450			—			21,733			(c)(f)	41,183
Consolidated Funds revenues	—			—			—			4,541			—				4,541
Total revenues	85,700			253,844			339,544			2,509			7,244				349,297
Expenses
Non interest expense	77,917			257,972			335,889			(429		)	28,170			(b)(c)(d)	363,630
Interest and dividends	9,645			3,288			12,933			—			8,933			(c)	21,866
Consolidated Funds expenses	—			—			—			6,428			—				6,428
Total expenses	87,562			261,260			348,822			5,999			37,103				391,924
Total other income (loss)	—			—			—			(1,915		)	18,092			(c)	16,177
Income taxes expense / (benefit)	—			—			—			—			(6,553		)	(b)	(6,553		)
(Income) loss attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	(6,589		)	—			(6,589		)	5,405			3,708				2,524
Economic Income (Loss) / Net Income (loss) attributable to Cowen Group, Inc.	$	(8,451	)	$	(7,416	)	$	(15,867	)	$	—		$	(1,506	)		$	(17,373	)

	Nine Months Ended September 30, 2015
									Adjustments
	Alternative Investment			Broker-Dealer		Total Economic Income/(Loss)			Funds Consolidation			Other Adjustments				US GAAP
	(dollars in thousands)
Revenues
Investment banking	$	—		$	186,763	$	186,763		$	—		$	—			$	186,763
Brokerage	41			112,292		112,333			—			(837		)		111,496
Management fees	50,885			282		51,167			(937		)	(19,061		)	(a)	31,169
Incentive income	(1,081		)	—		(1,081		)	(278		)	1,724			(a)	365
Investment Income	14,309			4,763		19,072			—			(19,072		)	(c)	—
Interest and dividends	—			—		—			—			9,846			(c)	9,846
Reimbursement from affiliates	—			—		—			(261		)	10,760			(e)	10,499
Other revenue	84			605		689			—			1,995			(c)	2,684
Consolidated Funds revenues	—			—		—			1,134			—				1,134
Total revenues	64,238			304,705		368,943			(342		)	(14,645		)		353,956
Expenses
Non interest expense	57,164			273,939		331,103			—			4,799			(b)(c)(d)	335,902
Interest and dividends	8,880			3,545		12,425			—			6,816			(c)	19,241
Consolidated Funds expenses	—			—		—			1,626			—				1,626
Total expenses	66,044			277,484		343,528			1,626			11,615				356,769
Total other income (loss)	—			—		—			4,278			27,795			(c)	32,073
Income taxes expense / (benefit)	—			—		—			—			5,212			(b)	5,212
(Income) loss attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	(6,128		)	—		(6,128		)	(2,310		)	(2,542		)		(10,980		)
Economic Income (Loss) / Net Income (loss) attributable to Cowen Group, Inc.	$	(7,934	)	$	27,221	$	19,287		$	—		$	(6,219	)		$	13,068

The following is a summary of the adjustments made to US GAAP net income (loss) for the segment to arrive at

Economic Income (Loss):

Funds Consolidation: The impacts of consolidation and the related elimination entries of the Consolidated Funds are not included in Economic Income (Loss). Adjustments to reconcile to US GAAP net income (loss) include elimination of incentive income and management fees earned from the Consolidated Funds and addition of fund expenses excluding management fees paid, fund revenues and investment income (loss).

Other Adjustments:

(a)     Economic Income (Loss) recognizes revenues (i) net of distribution fees paid to agents and (ii) our proportionate share

of management and incentive fees of certain real estate operating entities and the activist business.

(b)    Economic Income (Loss) excludes income taxes and acquisition related adjustments as management does not consider

these items when evaluating the performance of the segment.

(c)     Economic Income (Loss) recognizes Company income from proprietary trading (including interest and dividends) and

underwriting income from the Company's insurance related activities net of expenses.

(d)     Economic Income (Loss) recognizes the Company's proportionate share of expenses for certain real estate and other

operating entities for which the investments are recorded under the equity method of accounting for investments.

(e)    Reimbursement from affiliates is shown as a reduction of Economic Income expenses, but is included as a part of

revenues under US GAAP.

(f)    Aircraft lease revenue is shown net of expenses in other revenue for Economic Income (Loss).

For the three and nine months endedSeptember 30, 2016 and 2015, there was noone fund or other customer which represented more than 10% of the Company's total revenues.

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Regulatory Requirements

9 Months Ended

Sep. 30, 2016

Brokers and Dealers [Abstract]

Regulatory Requirements

Regulatory Requirements

As registered broker-dealers, Cowen and Company, ATM Execution and Cowen Prime are subject to the SEC's Uniform Net Capital Rule 15c3-1 (the “Rule”), which requires the maintenance of minimum net capital. Under the alternative method permitted by the Rule, Cowen and Company's minimum net capital requirement, as defined, is$1.0 million. Under the alternative method ATM Execution and Cowen Prime are required to maintain minimum net capital, as defined, equal to$250,000. The broker-dealers are not permitted to withdraw equity if certain minimum net capital requirements are not met. As of September 30, 2016, Cowen and Company had total net capital of approximately$78.3 million, which was approximately $77.3 million in excess of its minimum net capital requirement of$1.0 million. As of September 30, 2016, ATM Execution had total net capital of approximately$2.7 million, which was approximately$2.4 millionin excess of its minimum net capital requirement of$250,000. As of September 30, 2016, Cowen Prime had total net capital of approximately$11.7 million, which was approximately $11.4 million in excess of its minimum net capital requirement of $250,000.

Cowen and Company, ATM Execution and Cowen Prime claim exemption from the provisions of Rule 15c3-3 under the Securities Exchange Act of 1934 as their activities are limited to those set forth in the conditions for exemption appearing in paragraph (k)(2)(ii) of the Rule.

Proprietary accounts of broker-dealers (“PAB”) held at the clearing broker are considered allowable assets for net capital purposes, pursuant to agreements between Cowen and Company, ATM Execution and Cowen Prime and the clearing brokers, which require, among other things, that the clearing brokers perform computations for PAB and segregate certain balances on behalf of Cowen and Company, ATM Execution and Cowen Prime, if applicable.

Ramius UK Ltd. ("Ramius UK") and Cowen International Limited ("CIL")are subject to the capital requirements of the Financial Conduct Authority (“FCA”) of the UK. Financial Resources, as defined, must exceed the requirement of the FCA. As of September 30, 2016, Ramius UK's Financial Resources of$0.24 millionexceeded its minimum requirement of$0.06 million by $0.18 million. As of September 30, 2016, CIL's Financial Resources of$3.9 millionexceeded its minimum requirement of$1.9 million by $2.0 million.

Cowen’s Luxembourg reinsurance companies, Vianden RCG Re SCA (“Vianden”) and Hollenfels, are required to maintain a solvency capital ratio as calculated by relevant European Commission directives and local regulatory rules in Luxembourg. Each company’s solvency capital ratio as ofSeptember 30, 2016was in excess of this minimum requirement.

Based on minimum capital and surplus requirements pursuant to the laws of the state of New York that apply to captive insurance companies, RCG Insurance Company, Cowen’s captive insurance company incorporated and licensed in the state of New York, was required to maintain capital and surplus of approximately$0.3 millionas ofSeptember 30, 2016. RCG Insurance Company’s capital and surplus as of September 30, 2016 totaled approximately $22.1 million.

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Related Party Transactions

9 Months Ended

Sep. 30, 2016

Related Party Transactions [Abstract]

Related Party Transactions

Related Party Transactions

The Company and its affiliated entities are the managing member, general partner and/or investment manager to the Company's alternative asset management products and certain managed accounts. Management fees and incentive income are primarily earned from affiliated entities. As of September 30, 2016 and December 31, 2015, $5.9 million and $6.3 million, respectively, included in fees receivable are earned from related parties. The Company may, at its discretion, reimburse certain fees charged to the funds that it manages to avoid duplication of fees when such funds have an underlying investment in another affiliated investment fund. For the three and nine months ended September 30, 2016, the Company reimbursed the funds it manages $0.1 million and $0.1 million, respectively, which were recorded net in management fees and incentive income in the accompanying condensed consolidated statements of operation. These amounts were immaterial for the three and nine months ended September 30, 2015. As of September 30, 2016 and December 31, 2015, related amounts still payable were $0.1 million and $0.1 million, respectively, and were reflected in fees payable in the accompanying condensed consolidated statements of financial condition. Fees receivable and fees payable are recorded at carrying value, which approximates fair value.

The Company may also make loans to employees or other affiliates, excluding executive officers of the Company. These loans are interest bearing and settle pursuant to the agreed-upon terms with such employees or affiliates and are included in due from related parties in the accompanying condensed consolidated statements of financial condition. As of September 30, 2016 and December 31, 2015, loans to employees of $7.9 million and $5.5 million, respectively, were included in due from related parties on the accompanying condensed consolidated statements of financial condition. The Company does not make loans to its executive officers. Of these amounts $2.1 million and $1.2 million, respectively, are related to forgivable loans. These forgivable loans provide for a cash payment up-front to employees, with the amount due back to the Company forgiven over a vesting period.  An employee that voluntarily ceases employment, or is terminated with cause, is generally required to pay back to the Company any unvested forgivable loans granted to them.  The forgivable loans are recorded as an asset to the Company on the date of grant and payment, and then amortized to compensation expense on a straight-line basis over the vesting period.  The vesting period on forgivable loans is generally one to three years. The Company recorded compensation expense of $0.2 million and $0.6 million for the three months ended September 30, 2016 and 2015 and $0.9 million and $2.6 million for the nine months endedSeptember 30, 2016 and 2015, respectively. This expense is included in employee compensation and benefits in the accompanying condensed consolidated statement of operations. For the three and nine months endedSeptember 30, 2016, and 2015, the interest income was insignificant for all related party loans and advances.

Included in due to related parties is approximately $0.3 million and $0.3 million as of September 30, 2016 and December 31, 2015, respectively, related to a subordination agreement with an investor in certain real estate funds. This total is based on a hypothetical liquidation of the real estate funds as of the balance sheet date.

Included in due from related parties is $12.9 million related to a sale, in December of 2015, of a portion of the Company's ownership interest in the activist business of Starboard Value to the Starboard principals. It is being financed through the profits of the relevant Starboard entities over a five year period and earns interest at 5% per annum.  The interest income for the three and nine months endedSeptember 30, 2016 was $0.2 million and $0.5 million, respectively.

The remaining balance included in due from related parties of $11.7 million and $19.7 million as of September 30, 2016 and December 31, 2015, respectively, relates to amounts due to the Company from affiliated funds and real estate entities due to expenses paid on their behalf.

Employees and certain other related parties invest on a discretionary basis within consolidated entities. These investments generally are subject to preferential management fee and performance fee arrangements. As of September 30, 2016 and December 31, 2015, such investments aggregated $27.7 million and $21.3 million, respectively, were included in redeemable non-controlling interests on the accompanying condensed consolidated statements of financial condition. Their share of the net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds aggregated $2.9 million and $5.5 million for the three months ended September 30, 2016 and 2015 and $4.2 million and $10.3 million for the nine months endedSeptember 30, 2016 and 2015, respectively.

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Guarantees and Off-Balance Sheet Arrangements

9 Months Ended

Sep. 30, 2016

Guarantees and Off Balance Sheet Arrangements [Abstract]

Guarantees and Off-Balance Sheet Arrangements

Guarantees and Off-Balance Sheet Arrangements

Guarantees

US GAAP requires the Company to disclose information about its obligations under certain guarantee arrangements. Those standards define guarantees as contracts and indemnification agreements that contingently require a guarantor to make payments to the guaranteed party based on changes in an underlying security (such as an interest or foreign exchange rate, security or commodity price, an index or the occurrence or nonoccurrence of a specified event) related to an asset, liability or equity security of a guaranteed party. Those standards also define guarantees as contracts that contingently require the guarantor to make payments to the guaranteed party based on another entity's failure to perform under an agreement as well as indirect guarantees of the indebtedness of others.

In the normal course of its operations, the Company enters into contracts that contain a variety of representations and warranties and which provide general indemnifications. The Company's maximum exposure under these arrangements is unknown as this would involve future claims that may be made against the Company that have not yet occurred. However, based on experience, the Company expects the risk of loss to be remote.

The Company indemnifies and guarantees certain service providers, such as clearing and custody agents, trustees and administrators, against specified potential losses in connection with their acting as an agent of, or providing services to, the Company or its affiliates. The Company also indemnifies some clients against potential losses incurred in the event specified third-party service providers, including sub-custodians and third-party brokers, improperly execute transactions. The maximum potential amount of future payments that the Company could be required to make under these indemnifications cannot be estimated. However, the Company believes that it is unlikely it will have to make significant payments under these arrangements and has not recorded any contingent liability in the condensed consolidated financial statements for these indemnifications.

The Company also provides representations and warranties to counterparties in connection with a variety of commercial transactions and occasionally indemnifies them against potential losses caused by the breach of those representations and warranties. The Company may also provide standard indemnifications to some counterparties to protect them in the event additional taxes are owed or payments are withheld, due either to a change in or adverse application of certain tax laws. These indemnifications generally are standard contractual terms and are entered into in the normal course of business. The maximum potential amount of future payments that the Company could be required to make under these indemnifications cannot be estimated. However, the Company believes it is unlikely it will have to make material payments under these arrangements and has not recorded any contingent liability in the accompanying condensed consolidated financial statements for these indemnifications.

Off-Balance Sheet Arrangements

The Company has no material off-balance sheet arrangements as of September 30, 2016 and December 31, 2015. However, through indemnification provisions in the clearing agreement, customer activities may expose the Company to off-balance-sheet credit risk. Pursuant to the clearing agreement, the Company is required to reimburse the Company's clearing broker, without limit, for any losses incurred due to a counterparty's failure to satisfy its contractual obligations. However, these transactions are collateralized by the underlying security, thereby reducing the associated risk to changes in the market value of the security through the settlement date.

In addition, during the normal course of business, the Company has exposure to a number of risks including market risk, currency risk, credit risk, operational risk, liquidity risk and legal risk. As part of the Company's risk management process, these risks are monitored on a regular basis throughout the course of the year.

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Subsequent Events

9 Months Ended

Sep. 30, 2016

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

The Company has evaluated events that have occurred after the balance sheet date but before the financial statements are issued and has determined that there were no subsequent events requiring adjustment or disclosure in the condensed consolidated financial statements.

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Significant Accounting Policies - Quarterly (Policies)

9 Months Ended

Sep. 30, 2016

Accounting Policies [Abstract]

Basis of presentation

Basis of Presentation

These unaudited condensed consolidated financial statements are prepared in accordance with US GAAP as promulgated by the Financial Accounting Standards Board ("FASB") through Accounting Standards Codification as the source of authoritative accounting principles in the preparation of financial statements, and include the accounts of the Company, its operating and other subsidiaries, and entities in which the Company has a controlling financial interest or a general partner interest. All material intercompany transactions and balances have been eliminated on consolidation. Certain fund entities that are consolidated in these accompanying condensed consolidated financial statements, as further discussed below, are not subject to the consolidation provisions with respect to their own controlled investments pursuant to their specialized accounting.

The Company serves as the managing member/general partner and/or investment manager to affiliated fund entities which it sponsors and manages. Funds in which the Company has a controlling financial interest are consolidated with the Company pursuant to US GAAP as described below. Consequently, the Company's condensed consolidated financial statements reflect the assets, liabilities, income and expenses of these funds on a gross basis. The ownership interests in these funds that are not owned by the Company are reflected as redeemable non-controlling interests in consolidated subsidiaries in the accompanying condensed consolidated financial statements. The management fees and incentive income earned by the Company from these funds are eliminated in consolidation.

The year-end condensed balance sheet data was derived from the audited financial statements, but does not include all disclosures included in the audited financial statements.

Principles of consolidation

Principles of consolidation

The Company consolidates all entities that it controls through a majority voting interest or otherwise, including those funds in which the Company either directly or indirectly has a controlling financial interest. In addition, the Company consolidates all variable interest entities for which it is the primary beneficiary.

The Company adopted the new accounting pronouncement regarding consolidation accounting using the modified retrospective method with an effective adoption date of January 1, 2016. The modified retrospective method did not require the restatement of prior year periods. The adoption of the new accounting pronouncement also resulted in a reclassification of certain entities which were previously considered voting interest entities and are considered variable interest entities.

In accordance with these standards, the Company presently consolidatessixfunds for which it acts as the general partner and investment manager. As of September 30, 2016 the Company consolidated the following funds: Ramius Enterprise LP (“Enterprise LP”), Ramius Merger Fund LLC (the "Merger Fund"), Cowen Private Investments LP ("Cowen Private"), Ramius Archview Credit and Distressed Fund ("Archview Feeder Fund"), Ramius Archview Credit and Distressed Master Fund ("Archview Master Fund"), (as of May 1, 2016) Caerus Select Fund LP ("Caerus LP") and (as of July 11, 2016) Ramius Merger Arbitrage UCITS Fund ("UCITS Fund") (collectively the "Consolidated Funds").

The Company determines whether it has a controlling financial interest in an entity by first evaluating whether the entity is a voting operating entity ("VOE") or a variable interest entity ("VIE") under US GAAP.

Voting Operating Entities—VOEs are entities in which (i) the total equity investment at risk is sufficient to enable the entity to finance its activities independently and (ii) the equity holders at risk have the obligation to absorb losses, the right to receive residual returns and the right to direct the activities of the entity that most significantly impact the entity's economic performance.

Under US GAAP, the usual condition for a controlling financial interest in a VOE is ownership of a majority voting interest. Accordingly, the Company consolidates all VOEs in which it owns a majority of the entity's voting shares or units.

In connection with the adoption, the Company reevaluated all of its investment products for consolidation. As of January 1, 2016, the Company deconsolidated Quadratic Fund LLC ("Quadratic LLC") as the Company did not hold a significant voting interest in the fund. The adoption of the new accounting pronouncement also resulted in a reclassification of certain entities for which the Company was presumed to have control and will now be VIEs.

Variable Interest Entities—VIEs are entities that lack one or more of the characteristics of a VOE. In accordance with US GAAP, an enterprise must consolidate all VIEs of which it is the primary beneficiary. Under the US GAAP consolidation model for VIEs, an enterprise that (1) has the power to direct the activities of a VIE that most significantly impacts the VIE's economic performance, and (2) has an obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE, is considered to be the primary beneficiary of the VIE and thus is required to consolidate it.

The Company reconsiders whether it is the primary beneficiary of a VIE by performing a periodic qualitative and/or quantitative analysis of the VIE that includes a review of, among other things, its capital structure, contractual agreements between the Company and the VIE, the economic interests that create or absorb variability, related party relationships and the design of the VIE.As ofSeptember 30, 2016 and December 31, 2015, the total net assets of the consolidated VIEs were$452.0 million and $1.5 million, respectively. The VIEs act as investment managers and/or investment companies that may be managed by the Company or the Company may have equity interest in those investment companies. The VIEs are financed through their operations and/or loan agreements with the Company.

As of September 30, 2016the Company holds variable interests in Ramius Enterprise Master Fund Ltd (“Enterprise Master”), Ramius Merger Master Fund Ltd ("Merger Master") and Caerus Select Master Fund Ltd ("Caerus Master") (collectively the “Unconsolidated Master Funds”) through the Consolidated Funds. Investment companies, which account for their investments under the specialized industry accounting guidance for investment companies prescribed under US GAAP, are not subject to the consolidation provisions for their investments. Therefore, the Company has not consolidated the Unconsolidated Master Funds.

In the ordinary course of business, the Company also sponsors various other entities that it has determined to be VIEs. These VIEs are primarily funds and real estate entities for which the Company serves as the general partner, managing member and/or investment manager with decision-making rights.

The Company does not consolidate the Unconsolidated Master Funds or real estate entities that are VIEs as it has concluded that it is not the primary beneficiary in each instance. Fund investors are entitled to all of the economics of these VIEs with the exception of the management fee and incentive income, if any, earned by the Company. The Company's involvement with funds and real estate entities that are unconsolidated VIEs is limited to providing investment management services in exchange for management fees and incentive income. Although the Company may advance amounts and pay certain expenses on behalf of the funds and real estate entities that it considers to be VIEs, it does not provide, nor is it required to provide, any type of substantive financial support to these entities outside of regular investment management services (see Note 5for additional disclosures on VIEs).

Equity Method Investments—For operating entities over which the Company exercises significant influence but which do not meet the requirements for consolidation as outlined above, the Company uses the equity method of accounting. The Company's investments in equity method investees are recorded in other investments in the accompanying condensed consolidated statements of financial condition. The Company's share of earnings or losses from equity method investees is included in net gains (losses) on securities, derivatives and other investments in the accompanying condensed consolidated statements of operations.

The Company evaluates its equity method investments for impairment whenever events or changes in circumstances indicate that the carrying amounts of such investments may not be recoverable. The difference between the carrying value of the equity method investment and its estimated fair value is recognized as an impairment charge when the loss in value is deemed other than temporary.

Other—If the Company does not consolidate an entity, apply the equity method of accounting or account for an investment under the cost method, the Company accounts for such entities (primarily, all securities of such entity which are bought and held principally for the purpose of selling them in the near term as trading securities) in accordance with US GAAP, at fair value with unrealized gains (losses) resulting from changes in fair value reflected within net gains (losses) on securities, derivatives and other investments in the accompanying condensed consolidated statements of operations.

Retention of Specialized Accounting—The Consolidated Funds and certain other consolidated companies are investment companies and apply specialized industry accounting for investment companies. The Company has retained this specialized accounting for these funds pursuant to US GAAP. The Company reports its investments on the condensed consolidated statements of financial condition at their estimated fair value, with unrealized gains (losses) resulting from changes in fair value reflected within net realized and unrealized gains (losses) on investments and other transactions. Accordingly, the accompanying condensed consolidated financial statements reflect different accounting policies for investments depending on whether or not they are held through a consolidated investment company. In addition, the Company's broker-dealer subsidiaries, Cowen and Company, LLC ("Cowen and Company"), ATM Execution LLC ("ATM Execution"), Cowen International Limited ("CIL"), Ramius UK Ltd. ("Ramius UK") and Cowen Prime apply the specialized industry accounting for brokers and dealers in securities also prescribed under US GAAP. The Company also retains specialized accounting in consolidation.

Use of estimates

Use of estimates

The preparation of the accompanying condensed consolidated financial statements in conformity with US GAAP requires the management of the Company to make estimates and assumptions that affect the fair value of securities and other investments, the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the accompanying condensed consolidated financial statements, the accounting for goodwill and identifiable intangible assets and the reported amounts of revenues and expenses during the reporting period. Actual results could materially differ from those estimates.

Valuation of investments and derivative contracts

Valuation of investments and derivative contracts

US GAAP establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (level 1 measurements) and the lowest priority to unobservable inputs (level 3 measurements). Thethreelevels of the fair value hierarchy are as follows:

Level 1 Inputs that reflect unadjusted quoted prices in active markets for identical assets or liabilities that the Company has

the ability to access at the measurement date;

Level 2     Inputs other than quoted prices that are observable for the asset or liability either directly or indirectly, including

inputs in markets that are not considered to be active; and

Level 3 Fair value is determined based on pricing inputs that are unobservable and includes situations where there is little,

if any, market activity for the asset or liability. The determination of fair value for assets and liabilities in this

category requires significant management judgment or estimation.

Inputs are used in applying the various valuation techniques and broadly refer to the assumptions that market participants use to make valuation decisions, including assumptions about risk. Inputs may include price information, volatility statistics, specific and broad credit data, liquidity statistics, and other factors. A financial instrument's level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. However, the determination of what constitutes “observable” requires significant judgment by the Company. The Company considers observable data to be that market data which is readily available, regularly distributed or updated, reliable and verifiable, not proprietary, and provided by independent sources that are actively involved in the relevant market. The categorization of a financial instrument within the hierarchy is based upon the pricing transparency of the instrument and does not necessarily correspond to the Company's perceived risk of that instrument.

The Company and its operating subsidiaries act as the manager for the Consolidated Funds. Both the Company and the Consolidated Funds hold certain investments which are valued by the Company, acting as the investment manager. The fair value of these investments is generally estimated based on proprietary models developed by the Company, which include discounted cash flow analysis, public market comparables, and other techniques and may be based, at least in part, on independently sourced market information. The material estimates and assumptions used in these models include the timing and expected amount of cash flows, the appropriateness of discount rates used, and, in some cases, the ability to execute, timing of, and estimated proceeds from expected financings. Significant judgment and estimation goes into the selection of an appropriate valuation methodology as well as the assumptions used in these models, and the timing and actual values realized with respect to investments could be materially different from values derived based on the use of those estimates. The valuation methodologies applied impact the reported value of the Company's investments and the investments held by the Consolidated Funds in the consolidated financial statements. Certain of the Company's investments are relatively illiquid or thinly traded and may not be immediately liquidated on demand if needed. Fair values assigned to these investments may differ significantly from the fair values that would have been used had a ready market for the investments existed and such differences could be material.

The Company primarily uses the “market approach” to value its financial instruments measured at fair value. In determining an instrument's level within the hierarchy, the Company categorizes the Company's financial instruments intothreecategories: securities, derivative contracts and other investments. To the extent applicable, each of these categories can further be divided between those held long or sold short.

The Company has the option to measure certain financial assets and financial liabilities at fair value with changes in fair value recognized in earnings each period. The election is made on an instrument by instrument basis at initial recognition of an asset or liability or upon an event that gives rise to a new basis of accounting for that instrument.  The Company has elected the fair value option for certain of its investments held by its operating companies.  This option has been elected because the Company believes that it is consistent with the manner in which the business is managed as well as the way that financial instruments in other parts of the business are recorded.

Securities—Securities with values based on quoted market prices in active markets for identical assets are classified within level 1 of the fair value hierarchy. These securities include active listed equities, certain U.S. government and sovereign obligations, ETF's, mutual funds and certain money market securities. The Company does not adjust the quoted price for such instruments, even in situations where the Company holds a large position and a sale could reasonably impact the quoted price.

Certain positions for which trading activity may not be readily visible, consisting primarily of convertible debt, corporate debt and loans and restricted equities, are stated at fair value and classified within level 2 of the fair value hierarchy. The estimated fair values assigned by management are determined in good faith and are based on available information considering, trading activity, broker quotes, quotations provided by published pricing services, counterparties and other market participants, and pricing models using quoted inputs, and do not necessarily represent the amounts which might ultimately be realized. As level 2 investments include positions that are not always traded in active markets and/or are subject to transfer restrictions, valuations may be adjusted to reflect illiquidity and/or non-transferability.

Derivative contracts—Derivative contracts can be exchange-traded or privately negotiated over-the-counter (“OTC”). Exchange-traded derivatives, such as futures contracts and exchange-traded option contracts, are typically classified within level 1 or level 2 of the fair value hierarchy depending on whether or not they are deemed to be actively traded. OTC derivatives, such as generic forwards, swaps and options, have inputs which can generally be corroborated by market data and are therefore classified within level 2. OTC derivatives, such as swaps and options where market data is not readily available or observable are classified as level 3.

Other investments—Other investments consist primarily of portfolio funds, real estate investments and equity method investments, which are valued as follows:

i. Portfolio funds—Portfolio funds (“Portfolio Funds”) include interests in funds and investment companies which may be managed by the Company or its affiliates. The Company follows US GAAP regarding fair value measurements and disclosures relating to investments in certain entities that calculate net asset value (“NAV”) per share (or its equivalent). The guidance permits, as a practical expedient, an entity holding investments in certain entities that either are investment companies as defined by the AICPA Audit and Accounting Guide, Investment Companies, or have attributes similar to an investment company, and calculate net asset value per share or its equivalent for which the fair value is not readily determinable, to measure the fair value of such investments on the basis of that NAV per share, or its equivalent, without adjustment.In accordance with US GAAP, investments which are valued using NAV per share as a practical expedient are not categorized within the fair value hierarchy.

ii. Real estate investments—Real estate debt and equity investments are valued at fair value. The fair value of real estate investments are estimated based on the price that would be received to sell an asset in an orderly transaction between marketplace participants at the measurement date. Real estate investments without a public market are valued based on assumptions and valuation techniques used by the Company. Such valuation techniques may include discounted cash flow analysis, prevailing market capitalization rates or earnings multiples applied to earnings from the investment, analysis of recent comparable sales transactions, actual sale negotiations and bona fide purchase offers received from third parties, consideration of the amount that currently would be required to replace the asset, as adjusted for obsolescence, as well as independent external appraisals. In general, the Company considers several valuation techniques when measuring the fair value of a real estate investment. However, in certain circumstances, a single valuation technique may be appropriate. Real estate investments are reviewed on a quarterly basis by the Company for significant changes at the property level or a significant change in the overall market which would impact the value of the real estate investment resulting in unrealized appreciation or depreciation.

Real estate and capital markets are cyclical in nature. Property and investment values are affected by, among other things, the availability of capital, occupancy rates, rental rates and interest and inflation rates. In addition, the Company invests in real estate and real estate related investments for which no liquid market exists. The market prices for such investments may be volatile and may not be readily ascertainable. Amounts ultimately realized by the Company from investments sold may differ from the fair values presented, and the differences could be material.

The Company's real estate investments are typically categorized as level 3 investments within the fair value hierarchy as management uses significant unobservable inputs in determining their estimated fair value.

See Notes5 and 6for further information regarding the Company's investments, including equity method investments, and fair value measurements.

Fixed Assets

Fixed Assets

Fixed assets are stated at cost less accumulated depreciation or amortization. Leasehold improvements are amortized on a straight-line basis over the lesser of their useful life or lease term. When the Company commits to a plan to abandon fixed assets or leasehold improvements before the end of its original useful life, the estimated depreciation or amortization period is revised to reflect the shortened useful life of the asset. Other fixed assets are depreciated on a straight-line basis over their estimated useful lives.

Aircraft and related equipment, which are leased out under operating leases, are carried at cost less accumulated depreciation and are depreciated to estimated residual value using the straight-line method over the lease term or estimated useful life of the asset. Any assets received at the end of the lease are marked to the lower of cost or fair value with the adjustment recorded in other income.

Asset	Depreciable Lives	Principal Method
Telephone and computer equipment	3-8 years	Straight-line
Computer software	3-7 years	Straight-line
Furniture and fixtures	5-8 years	Straight-line
Leasehold improvements	5-15 years	Straight-line
Capitalized lease asset	5 years	Straight-line
Aircraft and related equipment	10-20 years	Straight-line
Modifications to aircraft	4-10 years	Straight-line

Debt

Debt

Long-term debt is carried at the principal amount borrowed net of any discount/premium. The discount is accreted to interest expense using the effective interest method over the remaining life of the underlying debt obligations. Accrued but unpaid coupon interest is included in accrued expenses and other liabilities in the accompanying condensed consolidated statements of financial condition. The Company adopted a new accounting pronouncement, during the first quarter of 2016, which reclassified the unamortized debt issuance costs in our previously reported condensed consolidated statements of financial condition from other assets to a direct reduction from the carrying amount of the debt. Notes payable and other debt and convertible debt as of December 31, 2015 was previously presented as $195.7 million. Due to the retrospective application notes payable and other debt and convertible debt is now presented as $191.0 million as of December 31, 2015.

Deferred rent

Deferred rent

Deferred rent primarily consists of step rent, allowances from landlords and valuing the Company's lease properties in accordance with US GAAP. Step rent represents the difference between actual operating lease payments due and straight-line rent expense, which is recorded by the Company over the term of the lease, including the build-out period. This amount is recorded as deferred rent in the early years of the lease, when cash payments are generally lower than straight-line rent expense, and reduced in the later years of the lease when payments begin to exceed the straight-line expense. Landlord allowances are generally comprised of amounts received and/or promised to the Company by landlords and may be received in the form of cash or free rent. These allowances are part of the negotiated terms of the lease. The Company records a receivable from the landlord and a deferred rent liability when the allowances are earned. This deferred rent is amortized into income (through lower rent expense) over the term (including the pre-opening build-out period) of the applicable lease, and the receivable is reduced as amounts are received from the landlord. Liabilities resulting from valuing the Company's leased properties acquired through business combinations are quantified by comparing the current fair value of the leased space to the current rental payments on the date of acquisition. Deferred rent, included in accounts payable, accrued expenses and other liabilities in the accompanying condensed consolidated statements of financial condition, as of September 30, 2016 and December 31, 2015 is $10.4 million and $12.0 million, respectively. Deferred rent asset, included in other assets in the accompanying condensed consolidated statements of financial condition, as of September 30, 2016 and December 31, 2015 is $0.1 million and $0.3 million, respectively.

Insurance Accounting Policy

Insurance-related contracts

Premiums for insurance-related contracts are earned over the coverage period. In most cases, premiums are recognized as revenues ratably over the term of the contract with unearned premiums computed on a monthly basis. For each of its contracts, the Company determines if the contract provides indemnification against loss or liability relating to insurance risk, in accordance with US GAAP. If the Company determines that a contract does not expose it to a reasonable possibility of a significant loss from insurance risk, the Company records the contract under the deposit method of accounting with any net amount receivable reflected as an asset in other assets, and any net amount payable reflected as a liability within accounts payable, accrued expenses and other liabilities on the condensed consolidated statements of financial condition.

The liabilities for losses and loss adjustment expenses are recorded at the estimated ultimate payment amounts, including reported losses.  Estimated ultimate payment amounts are based upon (1) reports of losses from policyholders, (2) individual case estimates and (3) estimates of incurred but not reported losses.

Provisions for losses and loss adjustment expenses are charged to earnings after deducting amounts recovered and estimates of recoverable amounts and are included in other expenses on the condensed consolidated statements of operations.

Costs of acquiring new policies, which vary with and are directly related to the production of new policies, have been deferred to the extent that such costs are deemed recoverable from future premiums or gross profits. Such costs include commissions and allowances as well as certain costs of policy issuance and underwriting and are included within other assets on the condensed consolidated statements of financial condition.

Included in other revenues, in the accompanying condensed consolidated statements of operations, for the three and nine months endedSeptember 30, 2016 is $8.9 million and $23.2 million, respectively, related to premiums earned from the Company’s insurance and reinsurance business. Included in other expenses, in the accompanying condensed consolidated statements of operations, for the three and nine months endedSeptember 30, 2016 is $8.6 million and $20.9 million, respectively, are insurance and reinsurance business loss and claim reserves, acquisition costs and other expenses.

Revenue Recognition Leases, Operating

Revenue recognition

Lease revenue

Lease revenue under operating leases is recognized on a straight-line basis over the term of the lease.

Recently issued accounting pronouncements

Recently issued accounting pronouncements

In August 2016, the FASB issued guidance which reduces the diversity in practice as to how certain cash receipts and cash payments are presented and classified in the statement of cash flows. This guidance addresses eight specific cash flow issues with the objective of reducing the existing and potential future diversity in practice. The amendments in this guidance are effective for public business entities for fiscal years beginning after December 15, 2017 and interim periods within those fiscal years. The Company is currently evaluating the impact of this guidance on the Company’s cash flows presentation.

In March 2016, as part of its simplification initiative, the FASB issued a new accounting pronouncement which simplified the requirements for share based payments. The guidance among other things covers the income tax consequences and classification of excess tax benefit and tax withholding on the statement of cash flows. For public business entities, the guidance is effective for reporting periods beginning after December 15, 2016. The Company is currently evaluating the impact of this guidance on the Company’s financial condition, results of operations and cash flows.

In May 2014, the FASB issued guidance which amends and supersedes the revenue recognition requirements and most industry-specific guidance and creates a single source of revenue guidance.  The new guidance outlines the principles an entity must apply to measure and recognize revenue and related cash flows.  The guidance also provides a model for the measurement and recognition of gains and losses on the sale of certain non-financial assets. The guidance is effective for reporting periods beginning after December 15, 2017.  In July 2015, the FASB confirmed a deferral of the effective date by one year, with early adoption on the original effective date permitted.  In 2016, the FASB issued various new guidance to clarify the implementation guidance on principal versus agent considerations, revenue from contracts with customers and identifying performance obligations and licensing implementation.  The Company is currently evaluating the impact of this guidance on the Company’s financial condition, results of operations and cash flows.

In March 2016, as part of its simplification initiative, the FASB issued a new accounting pronouncement which eliminates the requirement that when an investment qualifies for use of the equity method as a result of an increase in the level of ownership interest or degree of influence, an investor must adjust the investment, results of operations, and retained earnings retroactively on a step-by step basis as if the equity method had been in effect during all previous periods that the investment had been held. The amendments require that the equity method investor add the cost of acquiring the additional interest in the investee to the current basis of the investor’s previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for equity method accounting. Therefore, upon qualifying for the equity method of accounting, no retroactive adjustment of the investment is required. The guidance is effective prospectively for reporting periods beginning after December 15, 2016. The Company is currently evaluating the impact of this guidance on the Company’s financial condition, results of operations and cash flows.

In March 2016, the FASB issued two amendments relating to Derivatives and Hedging. The amendments clarify that a change in the counterparty to a derivative instrument that has been designated as the hedging instrument under Topic 815 does not, in and of itself, require de-designation of that hedging relationship provided that all other hedge accounting criteria continue to be met. The Second amendment relates to Contingent Put and call option in a debt instrument and clarify the requirements for assessing whether contingent call (put) options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt hosts when assessed under the current guidance. For public business entities the guidance is effective for reporting periods beginning after December 15, 2016. The Company is currently evaluating the impact of this guidance on the Company’s financial condition and its disclosures.

In February 2016, the FASB issued guidance which amends and supersedes its previous guidance regarding leases. The new guidance requires the lessee to recognize the right to use assets and lease liabilities that arise from leases and present them in its statement of financial condition. The recognition of these lease assets and lease liabilities represents an improvement over previous GAAP, which did not require lease assets and lease liabilities to be recognized for most leases. The recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee have not significantly changed from previous GAAP. There continues to be a differentiation between finance leases and operating leases. However, the principal difference from previous guidance is that the lease assets and lease liabilities arising from operating leases should be recognized in the statement of financial condition. For public business entities the guidance is effective for reporting periods beginning after December 15, 2018. The Company is currently evaluating the impact of this guidance on the Company’s financial condition and its disclosures.

In January 2016, as a joint project with International Accounting Standards Board (IASB), the FASB issued a new accounting pronouncement to address certain aspects of recognition, measurement, presentation and disclosure of financial instruments. The amendments in the update made improvements to US GAAP for equity investments and investments carried at amortized cost. The guidance also simplifies the impairment assessment for equity investments and clarifies the need for valuation allowance on deferred tax asset related to available for sale securities. For public business entities the guidance is effective for reporting periods beginning after December 15, 2017. The Company is currently evaluating the impact of this guidance on the Company’s financial condition and its disclosures.

Earnings Per Share

Diluted earnings per common share are calculated by adjusting the weighted average outstanding shares to assume conversion of all potentially dilutive items. The Company uses the treasury stock method to reflect the potential dilutive effect of the warrants (see Note 5(a)), unexercised stock options, unvested restricted shares, restricted stock units, and SAR's. In calculating the number of dilutive shares outstanding, the shares of common stock underlying unvested restricted shares and restricted stock units are assumed to have been delivered, and options and warrants are assumed to have been exercised, on the grant date. The assumed proceeds from the assumed vesting, delivery and exercising were calculated as the sum of (a) the amount of compensation cost attributed to future services and not yet recognized and (b) the amount of tax benefit that would be credited to additional paid-in capital assuming vesting and delivery of the shares. The tax benefit is the amount resulting from a tax deduction for compensation in excess of compensation expense recognized for financial statement reporting purposes. All outstanding stock options, SAR's, unvested restricted shares and warrants were not included in the computation of diluted net income (loss) per common share for the three and nine months ended September 30, 2016 as their inclusion would have been anti-dilutive

Segment Reporting

The performance measure for these segments is Economic Income (Loss), which management uses to evaluate the financial performance of and make operating decisions for the segments including determining appropriate compensation levels. Expenses not directly associated with specific segments are allocated based on the most relevant measures applicable, including headcount, square footage and other factors.

In general, Economic Income (Loss) is a pre-tax measure that (i) eliminates the impact of consolidation for consolidated funds (ii) excludes goodwill and intangible impairment (iii) excludes certain other acquisition-related adjustments and/or reorganization expenses and (iv) excludes preferred stock dividends. In addition, Economic Income (Loss) revenues include investment income that represents the income the Company has earned in investing its own capital, including realized and unrealized gains and losses, interest and dividends, net of associated investment related expenses. For US GAAP purposes, these items are included in each of their respective line items. Economic Income (Loss) revenues also include management fees, incentive income and investment income earned through the Company's investment as a general partner in certain real estate entities and the Company's investment in the activist business. For US GAAP purposes, all of these items are recorded in other income (loss). In addition, Economic Income (Loss) expenses are reduced by reimbursement from affiliates, which for US GAAP purposes is presented gross as part of revenue.

As further stated below, one major difference between Economic Income (Loss) and US GAAP net income (loss) is that Economic Income (Loss) presents the segments' results of operations without the impact resulting from the full consolidation of any of the Consolidated Funds. Consolidation of these funds results in including in income the pro rata share of the income or loss attributable to other owners of such entities which is reflected in net income (loss) attributable to redeemable non-controlling interest in consolidated subsidiaries in the accompanying condensed consolidated statements of operations. This pro rata share has no effect on the overall financial performance for the alternative investment segment, as ultimately, this income or loss is not income or loss for the alternative investment segment itself. Included in Economic Income (Loss) is the actual pro rata share of the income or loss attributable to the Company as an investor in such entities, which is relevant in management making operating decisions and evaluating financial performance.

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Acquisition (Tables)

9 Months Ended

Sep. 30, 2016

Acquisition [Abstract]

Business Acquisition, Pro Forma Information

The following unaudited supplemental pro forma information presents consolidated financial results for the nine months ended September 30, 2015 as if the acquisitions were completed as of the beginning of that period. This supplemental pro forma information has been prepared for comparative purposes only and is not intended to be indicative of what the Company's results would have been had the acquisitions been completed on January 1, 2015, nor does it purport to be indicative of any future results.

	For the nine months ended September 30, 2015
	(dollars in thousands,  except per share data)
	(unaudited)
Revenues	$	385,932
Net income (loss) attributable to Cowen Group, Inc. common stockholders	10,672
Net income per common share:
Basic	$	0.10
Diluted	$	0.09

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Investments of Operating Entities and Consolidated Funds - (Tables)

9 Months Ended

Sep. 30, 2016

Investment Holdings [Line Items]

Marketable Securities

As of September 30, 2016 and December 31, 2015, securities owned, at fair value consisted of the following:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
U.S. Government securities (a)	$	3,776	$	3,016
Preferred stock (b)	12,964		25,563
Common stocks (b)	504,093		516,108
Convertible bonds (c)	250		819
Corporate bonds (d)	17,794		47,192
Warrants and rights	5,762		3,059
Mutual funds (e)	5		14,477
	$	544,644	$	610,234

(a) As of September 30, 2016, maturities ranged from December 2016 to August 2017 with an interest rate of 0%. As of December 31, 2015, maturities ranged from January 2016 to August 2016 with interest rates ranged between 0% to 5.95%.

(b) Included in preferred stocks are investments in securities for which the Company has elected the fair value option with the fair value of $4.2 million at September 30, 2016 and preferred and common stock of $7.7 million and $7.4 million, respectively, at December 31, 2015. These investments were acquired in connection with merchant banking transactions.

(c) As of September 30, 2016, the maturity was March 2018 with an interest rate of 8%. As of December 31, 2015, maturities ranged from July 2016 to March 2018 with interest rates ranged between 8% to 10.00%.

(d) As of September 30, 2016, maturities ranged from October 2016 to February 2046 and interest rates ranged between 3.25% to 13.00%. As of December 31, 2015, maturities ranged from March 2016 to February 2046 and interest rates ranged between 3.25% to 9.00%.

(e) Included in this amount as of December 31, 2015, are investments in affiliated funds of $13.4 million all of which was liquidated during the three months ended March 31, 2016.

Schedule of Derivative Instruments

The Company's long and short exposure to derivatives is as follows:

Receivable on derivative contracts	As of September 30, 2016				As of December 31, 2015
	Number of contracts / Notional Value		Fair value		Number of contracts / Notional Value		Fair value
	(dollars in thousands)
Futures	$	13,935	$	704	$	9,416	$	189
Currency forwards	$	59,902	17		$	67,862	659
Equity swaps	$	67,059	1,442		$	118,488	2,327
Options other (a)	242,968		22,941		289,433		31,456
Foreign currency options	$	245,700	2,324		$	283,797	4,987
			$	27,428			$	39,618

(a) Includes index, equity, commodity future and cash conversion options.

Payable for derivative contracts	As of September 30, 2016				As of December 31, 2015
	Number of contracts / Notional Value		Fair value		Number of contracts / Notional Value		Fair value
	(dollars in thousands)
Futures	$	42,736	$	1,235	$	11,995	$	101
Currency forwards	$	24,650	37		$	44,156	463
Equity and credit default swaps	$	—	—		$	7,605	71
Options other (a)	11,235		15,749		16,632		20,548
			$	17,021			$	21,183

(a) Includes index, equity, commodity future and cash conversion options.

The following tables present the gross and net derivative positions and the related offsetting amount, as of September 30, 2016 and December 31, 2015.

							Gross amounts not offset in the Condensed Consolidated Statement of Financial Condition
	Gross amounts recognized		Gross amounts offset on the Condensed Consolidated Statements of Financial Condition (a)		Net amounts included on the Condensed Consolidated Statements of Financial Condition		Financial instruments		Cash Collateral pledged (b)		Net amounts
	(dollars in thousands)
As of September 30, 2016
Receivable on derivative contracts, at fair value	$	27,428	$	—	$	27,428	$	—	$	4,278	$	23,150
Payable for derivative contracts, at fair value	17,021		—		17,021		—		37		16,984
As of December 31, 2015
Receivable on derivative contracts, at fair value	39,618		—		39,618		—		9,339		30,279
Payable for derivative contracts, at fair value	21,183		—		21,183		—		534		20,649

(a) Includes financial instruments subject to enforceable master netting provisions that are permitted to be offset to the extent an event of default has occurred.

(b) Includes the amount of collateral held or posted.

Schedule of Other Investments

As of September 30, 2016 and December 31, 2015, other investments included the following:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Portfolio Funds, at fair value (1)	$	115,682	$	113,281
Equity method investments (2)	51,485		27,067
Lehman claims, at fair value	283		299
	$	167,450	$	140,647

Schedule of Other Investments, Portfolio Funds

The Portfolio Funds, at fair value as of September 30, 2016 and December 31, 2015, included the following:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
HealthCare Royalty Partners (a)(*)	$	9,058	$	12,127
HealthCare Royalty Partners II (a)(*)	4,885		6,006
Orchard Square Partners Credit Fund LP (b)	4,241		4,170
Starboard Value and Opportunity Fund LP (c)(*)	27,984		20,369
Starboard Partners Fund LP (d)(*)	3,969		14,036
Starboard Leaders Fund LP (e)(*)	1,147		1,080
Formation8 Partners Fund I, L.P. (f)	21,784		19,454
Eclipse Ventures Fund I, L.P. (formerly Formation8 Partners Hardware Fund I, L.P.) (g)	1,705		1,101
RCG LV Park Lane LLC (h) (*)	971		809
RCGL 12E13th LLC (i) (*)	402		609
RCG Longview Debt Fund V, L.P. (i) (*)	16,325		18,147
RCG LPP2 PNW5 Co-Invest, L.P. (j) (*)	2,468		2,468
Quadratic Fund LLC (k) (*)	6,684		—
Other private investment (l) (*)	8,241		6,909
Other affiliated funds (m)(*)	5,818		5,996
	$	115,682	$	113,281

* These portfolio funds are affiliates of the Company.

The Company has no unfunded commitments regarding the portfolio funds held by the Company except as noted in Note 12.

(a) HealthCare Royalty Partners, L.P. and HealthCare Royalty Partners II, L.P. are private equity funds and therefore distributions will be made when cash flows are received from the underlying investments, typically on a quarterly basis.

(b) Orchard Square Partners Credit Fund LP has a quarterly redemption policy with a 60 day notice period and a 4% penalty on redemptions of investments of less than a year in duration.

(c) Starboard Value and Opportunity Fund LP permits quarterly withdrawals upon 90 days notice.

(d) Starboard Partners Fund LP permits redemptions on a semi-annual basis on 180 days prior written notice subsequent to an initial two year lock up.

(e) Starboard Leaders Fund LP does not permit withdrawals, but instead allows terminations with respect to capital commitments upon 30 days prior written notice at any time following the first anniversary of an investors initial capital contribution.

(f) Formation8 Partners Fund I, L.P. is a private equity fund which invests in early stage and growth transformational information and energy technology companies. Distributions will be made when the underlying investments are liquidated.

(g) Eclipse Ventures Fund I, L.P. (Formerly Formation8 Partners Hardware Fund I, L.P.) is a private equity fund which invests in early stage and growth hardware companies. Distributions will be made when the underlying investments are liquidated.

(h) RCG LV Park Lane LLC is a single purpose entity formed to participate in a joint venture which acquired, at a discount, the mortgage notes on a portfolio of multifamily real estate properties located in Birmingham, Alabama.  RCG LV Park Lane LLC is a private equity fund and therefore distributions will be made when the underlying investments are liquidated.

(i) RCGL 12E13th LLC and RCG Longview Debt Fund V, L.P. are real estate private equity structures and therefore distributions will be made when the underlying investments are liquidated.

(j) RCG LPP2 PNW5 Co-Invest, L.P. is a single purpose entity formed to participate in a joint venture which acquired five multi-unit residential rental properties located in the Pacific Northwest. RCG LPP2 PNW5 Co-Invest, L.P. is a private equity structure and therefore distributions will be made when the underlying investments are liquidated.

(k) Quadratic Fund LLC permits redemptions on a 30 days prior written notice.

(l) Other private investment represents the Company's closed end investment in a portfolio fund that invests in a wireless broadband communication provider in Italy.

(m) The majority of these funds are affiliates of the Company or are managed by the Company and the investors can redeem from these funds as investments are liquidated.

Schedule of Other Investments, Equity Method

Other equity method investment	Three Months Ended September 30,					Nine Months Ended September 30,
	2016		2015			2016		2015
	(dollars in thousands)
Revenues	$	9,005	$	(8,686	)	$	9,747	$	(5,182	)
Expenses	—		—			—		—
Net realized and unrealized gains (losses)	37		(132		)	92		(67		)
Net Income	$	9,042	$	(8,818	)	$	9,839	$	(5,249	)

The following table summarizes equity method investments held by the Company:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
RCG Longview Debt Fund IV Management, LLC	$	331	$	331
RCG Longview Debt Fund V Partners, LLC	6,594		4,655
HealthCare Royalty GP, LLC	739		989
HealthCare Royalty GP II, LLC	827		1,017
HealthCare Royalty GP III, LLC	197		88
HealthCare Overflow Fund GP, LLC	101		—
Surf House Ocean Views Holdings, LLC	13,383		—
Starboard Value LP	25,529		15,769
RCG Longview Management, LLC	714		656
RCG Urban American, LLC	107		120
RCG Urban American Management, LLC	379		379
RCG Longview Equity Management, LLC	114		114
Urban American Real Estate Fund II, LLC	1,311		1,211
RCG Kennedy House, LLC	227		304
Other	932		1,434
	$	51,485	$	27,067

Schedule of Securities Sold, Not yet Purchased

As of September 30, 2016 and December 31, 2015, securities sold, not yet purchased, at fair value consisted of the following:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Common stocks	$	208,491	$	257,101
Corporate bonds (a)	3,653		58
Warrants and rights	39		—
	$	212,183	$	257,159

(a) As of September 30, 2016 and December 31, 2015, the maturities ranged from June 2017 to January 2026 with interest rates ranged between 3.25% to 6.88%.

Consolidated Funds

Investment Holdings [Line Items]

Marketable Securities

As of September 30, 2016 and December 31, 2015, securities owned, at fair value, held by the Consolidated Funds consisted of the following:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
U.S. Government securities (a)	$	3,999	$	—
Preferred stock	37,243		32,000
Common stocks	22,950		—
Corporate bonds (b)	5,452		—
Warrants and rights	3		—
Term Loan	1,809		—
	$	71,456	$	32,000

(a) As of September 30, 2016, maturity was December 2016 with an interest rate of 0%.

(b) As of September 30, 2016, maturities ranged from October 2017 to May 2049 and interest rates ranged between 5.88% and 14.37%.

Schedule of Derivative Instruments

As of September 30, 2016, receivable on derivative contracts, at fair value, held by the Consolidated Funds are comprised of:

	As of September 30, 2016
	(dollars in thousands)
Currency forwards	$	1
Equity swaps	366
Options	62
	$	429

Payable for derivative contracts

As of September 30, 2016, receivable on derivative contracts, at fair value, held by the Consolidated Funds are comprised of:

	As of September 30, 2016
	(dollars in thousands)
Futures	$	246
Options	30
	$	276

Schedule of Other Investments, Portfolio Funds

Investments in Portfolio Funds, at fair value

As of September 30, 2016 and December 31, 2015, investments in Portfolio Funds, at fair value, included the following:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Investments of Enterprise LP	$	110,290	$	111,075
Investments of Merger Fund	275,407		74,348
Investments of Caerus Select Fund Ltd	6,175		—
Investments of Quadratic LLC	—		78,395
	$	391,872	$	263,818

Schedule of Securities Sold, Not yet Purchased

As of September 30, 2016, securities sold, not yet purchased, at fair value, held by the Consolidated Funds consisted of the following:

	As of September 30, 2016
	(dollars in thousands)
Common stocks	$	395
Corporate bonds (a)	1,145
	$	1,540

(a) As of September 30, 2016, maturities ranged from September 2019 to March 2025 and interest rates ranged between 4.38% and 9.25%.

Enterprise Master

Investment Holdings [Line Items]

Marketable Securities

Securities owned by Enterprise Master, at fair value

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Common stock	835		724
Preferred stock	1,587		1,484
Restricted stock	124		124
Rights	—		321
Trade claims	—		128
	$	2,546	$	2,781

Schedule of Derivative Instruments

Receivable/(Payable) on derivative contracts, at fair value, owned by Enterprise Master

	As of September 30, 2016		As of December 31, 2015
Description	(dollars in thousands)
Currency forwards	$	—	$	(4	)
	$	—	$	(4	)

Schedule of Other Investments, Portfolio Funds

Portfolio Funds, owned by Enterprise Master, at fair value

		As of September 30, 2016		As of December 31, 2015
	Strategy	(dollars in thousands)
RCG Longview Equity Fund, LP*	Real Estate	$	4,847	$	7,635
RCG Longview II, LP*	Real Estate	742		698
RCG Longview Debt Fund IV, LP*	Real Estate	1,841		3,577
RCG Soundview, LLC*	Real Estate	452		452
RCG Urban American Real Estate Fund, L.P.*	Real Estate	307		312
RCG Special Opportunities Fund, Ltd*	Multi-Strategy	95,023		81,544
RCG Energy, LLC *	Energy	—		1,189
RCG Renergys, LLC*	Energy	1		1
Other Private Investments	Various	9,164		10,515
Other Real Estate Investments *	Real Estate	4,779		5,753
		$	117,156	$	111,676

* Affiliates of the Company.

Merger Master

Investment Holdings [Line Items]

Marketable Securities

Securities owned by Merger Master, at fair value

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Common stocks	$	650,699	$	157,429
Corporate bonds (a)	14,443		492
	$	665,142	$	157,921

(a) As of September 30, 2016, the maturity was January 2024 with an interest rate of 6.5%. As ofDecember 31, 2015, the maturity was June 2024 with an interest rate of 5.25%

Schedule of Derivative Instruments

Receivable on derivative contracts, at fair value, owned by Merger Master

	As of September 30, 2016		As of December 31, 2015
Description	(dollars in thousands)
Options	$	2,987	$	1,275
Currency forwards	—		235
Equity swaps	2,525		1,001
	$	5,512	$	2,511

Payable for derivative contracts, at fair value, owned by Merger Master

	As of September 30, 2016		As of December 31, 2015
Description	(dollars in thousands)
Options	$	1,586	$	563
Equity swaps	—		30
	$	1,586	$	593

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Fair Value Measurements for Operating Entities and Consolidated Funds (Tables)

9 Months Ended

Sep. 30, 2016

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following table presents the assets and liabilities that are measured at fair value on a recurring basis on the accompanying condensed consolidated statements of financial condition by caption and by level within the valuation hierarchy as of September 30, 2016 and December 31, 2015:

	Assets at Fair Value as of September 30, 2016
	Level 1			Level 2			Level 3			Total
				(dollars in thousands)
Operating Entities
Securities owned
US Government securities	$	3,776		$	—		$	—		$	3,776
Preferred stock	—			—			12,964			12,964
Common stocks	490,854			1,638			11,601			504,093
Convertible bonds	—			—			250			250
Corporate bonds	—			17,574			220			17,794
Warrants and rights	2,205			—			3,557			5,762
Mutual funds	5			—			—			5
Receivable on derivative contracts, at fair value
Futures	704			—			—			704
Currency forwards	—			17			—			17
Equity swaps	—			1,442			—			1,442
Options	9,484			2,820			12,961			25,265
Other investments
Lehman claim	—			—			283			283
Consolidated funds
Securities owned
US Government securities	3,999			—			—			3,999
Preferred stock	—			352			36,891			37,243
Common stocks	14,306			8,644			—			22,950
Corporate Bonds	—			5,452			—			5,452
Warrants and rights	—			—			3			3
Term Loan	—			1,809			—			1,809
Receivable on derivative contracts, at fair value
Currency forwards	—			1			—			1
Futures	—			366			—			366
Options	57			5			—			62
	$	525,390		$	40,120		$	78,730		$	644,240
Percentage of total assets measured at fair value	81.6		%	6.2		%	12.2		%
Portfolio funds measured at net asset value (a)										115,682
Consolidated funds' portfolio funds measured at net asset value (a)										391,872
Equity method investments										51,485
Total investments										$	1,203,279

	Liabilities at Fair Value as of September 30, 2016
	Level 1			Level 2			Level 3			Total
	(dollars in thousands)
Operating Entities
Securities sold, not yet purchased
Common stocks	$	208,478		$	13		$	—		$	208,491
Corporate bonds	—			3,653			—			3,653
Warrants and rights	39			—			—			39
Payable for derivative contracts, at fair value
Futures	1,235			—			—			1,235
Currency forwards	—			37			—			37
Options	2,788			—			12,961			15,749
Accounts payable, accrued expenses and other liabilities
Contingent consideration liability (b)	—			—			7,201			7,201
Consolidated funds
Securities sold, not yet purchased
Common stocks	395			—			—			395
Corporate bonds	—			1,145			—			1,145
Payable for derivative contracts, at fair value
Options	30			—			—			30
Futures	—			246			—			246
	$	212,965		$	5,094		$	20,162		$	238,221
Percentage of total liabilities measured at fair value	89.4		%	2.1		%	8.5		%

(a) In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share (or its equivalent) as a practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the condensed consolidated statement of financial condition.

(b) In accordance with the terms of the purchase agreements for acquisitions that closed during 2012 and the third and fourth quarter of 2015 and the second quarter of 2016, the Company is required to pay to the sellers a portion of future net income of the acquired businesses, if certain revenue targets are achieved through the periods ended August 2016, December 2018, December 2020, and June 2018, respectively. The Company estimated the contingent consideration liability using the income approach (discounted cash flow method) which requires the Company to make estimates and assumptions regarding the future cash flows and profits. Changes in these estimates and assumptions could have a significant impact on the amounts recognized. The undiscounted amounts as of September 30, 2016 can range from $0.1 million to $16.3 million.

	Assets at Fair Value as of December 31, 2015
	Level 1			Level 2			Level 3			Total
				(dollars in thousands)
Operating Entities
Securities owned
US Government securities	$	3,016		$	—		$	—		$	3,016
Preferred stock	7,891			4,800			12,872			25,563
Common stocks	505,303			7,527			3,278			516,108
Convertible bonds	—			—			819			819
Corporate bonds	—			47,192			—			47,192
Warrants and rights	487			—			2,572			3,059
Mutual funds	14,477			—			—			14,477
Receivable on derivative contracts, at fair value
Futures	189			—			—			189
Currency forwards	—			659			—			659
Equity swaps	—			2,327			—			2,327
Options	11,895			6,354			18,194			36,443
Other investments
Lehman claim	—			—			299			299
Consolidated funds
Preferred stock	—			—			32,000			32,000
	$	543,258		$	68,859		$	70,034		$	682,151
Percentage of total assets measured at fair value	79.6		%	10.1		%	10.3		%
Portfolio funds measured at net asset value (a)										113,281
Consolidated funds' portfolio funds measured at net asset value (a)										263,818
Equity method investments										27,067
Total investments										$	1,086,317

	Liabilities at Fair Value as of December 31, 2015
	Level 1			Level 2			Level 3			Total
	(dollars in thousands)
Securities sold, not yet purchased
Common stocks	$	257,101		$	—		$	—		$	257,101
Corporate bonds	—			58			—			58
Payable for derivative contracts, at fair value
Futures	101			—			—			101
Currency forwards	—			463			—			463
Equity and credit default swaps	—			71			—			71
Options	2,354			—			18,194			20,548
Accounts payable, accrued expenses and other liabilities
Contingent consideration liability (b)	—			—			6,158			6,158
	$	259,556		$	592		$	24,352		$	284,500
Percentage of total liabilities measured at fair value	91.2		%	0.2		%	8.6		%

(a) In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share (or its equivalent) as a practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the condensed consolidated statement of financial condition.

(b) In accordance with the terms of the purchase agreements for acquisitions that closed during 2012 and the third and fourth quarter of 2015, the Company is required to pay to the sellers a portion of future net income of the acquired businesses, if certain revenue targets are achieved through the periods ended August 2016, December 2018, and December 2020, respectively. The Company estimated the contingent consideration liability using the income approach (discounted cash flow method) which requires the Company to make estimates and assumptions regarding the future cash flows and profits. Changes in these estimates and assumptions could have a significant impact on the amounts recognized. The undiscounted amounts as of December 31, 2015 can range from $0.1 million to $10.0 million.

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation

The following table includes a rollforward of the amounts for the three and nine months endedSeptember 30, 2016 and 2015, for financial instruments classified within level 3. The classification of a financial instrument within level 3 is based upon the significance of the unobservable inputs to the overall fair value measurement.

	Three Months Ended September 30, 2016
	Balance at June 30, 2016		Transfers in		Transfers out				Purchases/(covers)		(Sales)/shorts			Realized and Unrealized gains/losses			Balance at September 30, 2016		Change in unrealized gains/losses relating to instruments still held (1)
	(dollars in thousands)
Operating Entities
Preferred stock	$	13,242	$	—	$	—			$	250	$	—		$	(528	)	$	12,964	$	(508	)
Common stocks	7,427		—		—				3,716		—			458			11,601		458
Convertible bonds	250		—		—				—		—			—			250		—
Corporate bond	319		—		—				—		(179		)	80			220		45
Options, asset	8,547		—		—				—		—			4,414			12,961		4,414
Options, liability	8,547		—		—				—		—			4,414			12,961		4,414
Warrants and rights	3,303		—		—				—		—			254			3,557		252
Lehman claim	270		—		—				—		—			13			283		13
Contingent consideration liability	7,197		—		—				—		—			4			7,201		4
Consolidated Funds
Preferred stock	41,000		—		(7,000		)	(a)	467		—			2,424			36,891		2,424
Warrants and rights	—		—		—				—		—			3			3		3

	Three Months Ended September 30, 2015
	Balance at June 30, 2015		Transfers in		Transfers out				Purchases/(covers)		(Sales)/shorts			Realized and Unrealized gains/losses			Balance at September 30, 2015		Change in unrealized gains/losses relating to instruments still held (1)
	(dollars in thousands)
Operating Entities
Preferred stock	$	23,462	$	—	$	(9,000	)	(a) (b)	$	3,500	$	(6,665	)	$	4,474		$	15,771	$	1,200
Common stocks	404		—		—				104		(89		)	(102		)	317		(87		)
Convertible bonds	879		—		—				250		—			—			1,129		—
Options, asset	58,576		—		—				—		—			(36,985		)	21,591		(36,985		)
Options, liability	58,576		—		—				—		—			(36,985		)	21,591		(36,985		)
Warrants and rights	2,316		—		—				—		—			678			2,994		878
Lehman claim	347		—		—				—		—			(12		)	335		(12		)
Contingent consideration liability	2,358		—		—				3,100		—			—			5,458		—
Consolidated Funds
Preferred Stock	—		—		7,000			(b)	12,000		—			—			19,000		—
Lehman claim	744		—		—				—		(739		)	(5		)	—		—

	Nine Months Ended September 30, 2016
	Balance at December 31, 2015		Transfers in		Transfers out				Purchases/(covers)		(Sales)/shorts			Realized and Unrealized gains/losses			Balance at September 30, 2016		Change in unrealized gains/losses relating to instruments still held (1)
	(dollars in thousands)
Operating Entities
Preferred stock	$	12,872	$	—	$	(1,000	)	(a)	$	450	$	(218	)	$	860		$	12,964	$	452
Common stocks	3,278		—		—				5,710		(135		)	2,748			11,601		2,750
Convertible bonds	819		—		—				—		(569		)	—			250		—
Corporate bond	—		—		—				279		(179		)	120			220		85
Options, asset	18,194		—		—				—		—			(5,233		)	12,961		(5,233		)
Options, liability	18,194		—		—				—		—			(5,233		)	12,961		(5,233		)
Warrants and Rights	2,572		—		—				1,914		(817		)	(112		)	3,557		(87		)
Lehman claim	299		—		—				—		—			(16		)	283		(16		)
Contingent consideration liability	6,158		—		—				2,397		(3,493		)	2,139			7,201		2,139
Consolidated Funds
Preferred stock	32,000				(11,000		)	(a)	13,467		—			2,424			36,891		2,424
Warrants and rights	—		—		—				—		—			3			3		3

	Nine Months Ended September 30, 2015
	Balance at December 31, 2014		Transfers in		Transfers out				Purchases/(covers)		(Sales)/shorts			Realized and Unrealized gains/losses			Balance at September 30, 2015		Change in unrealized gains/losses relating to instruments still held (1)
	(dollars in thousands)
Operating Entities
Preferred stock	$	12,517	$	—	$	(15,823	)	(a) (b)	$	21,750	$	(6,665	)	$	3,992		$	15,771	$	717
Common stocks	412		—		—				104		(120		)	(79		)	317		(74		)
Convertible bonds	900		—		—				250		—			(21		)	1,129		(21		)
Options, asset	36,807		—		—				—		—			(15,216		)	21,591		(15,216		)
Options, liability	36,807		—		—				—		—			(15,216		)	21,591		(15,216		)
Warrants and Rights, asset	1,322		—		—				26		(71		)	1,717			2,994		1,757
Lehman claim	380		—		—				—		—			(45		)	335		(45		)
Contingent consideration liability	4,083		—		—				3,100		(1,725		)	—			5,458		—
Consolidated Funds
Preferred Stock	—				7,000			(b)	12,000		—			—			19,000		—
Lehman claim	493		—		—				—		(739		)	246			—		250

(1) Unrealized gains/losses are reported in other income (loss) in the accompanying condensed consolidated

statements of operations.

(a) The investment was converted to equity.

(b) The company transferred investments to a consolidated fund.

Fair Value Inputs, Assets, Quantitative Information

The following table includes quantitative information as of September 30, 2016 and December 31, 2015 for financial instruments classified within level 3. The table below quantifies information about the significant unobservable inputs used in the fair value measurement of the Company's level 3 financial instruments.

	Quantitative Information about Level 3 Fair Value Measurements
	Fair Value at September 30, 2016		Valuation techniques	Unobservable Inputs	Range
Level 3 Assets	(dollars in thousands)
Common and preferred stocks	$	8,803	Market/transaction price and option pricing method Illiquidity discount, discounted cash flow	Volatility Market multiples Discount Discount rate	35% 4x to 9.5x 90% 9.5%
Corporate bonds	188		Discounted cash flows illiquidity discount	Discount rate Discount	20% 10%
Warrants and rights, net	3,649		Model based	Volatility	18% to 85% (weighted average 75%)
Options	12,961		Option pricing models	Volatility	40%
Other level 3 assets (a)	53,129
Total level 3 assets	78,730
Level 3 Liabilities
Options	12,961		Option pricing models	Volatility	40%
Contingent consideration	7,201		Discounted cash flows	Projected cash flow and discount rate	0% - 31% (weighted average 21%)
Total level 3 liabilities	$	20,162

	Quantitative Information about Level 3 Fair Value Measurements
	Fair Value at December 31, 2015		Valuation techniques	Unobservable Inputs	Range
Level 3 Assets	(dollars in thousands)
Common and preferred stocks	$	2,569	Market multiples and option pricing method	Volatility Market multiples	34% 1x to 4.75x
Convertible bonds	819		Recovery analysis	Recovery rate	50%
Warrants and rights, net	2,572		Model based	Volatility	18% to 61% (weighted average 43%)
Options	18,194		Option pricing models	Volatility Credit spreads	38%
Other level 3 assets (a)	45,880
Total level 3 assets	70,034
Level 3 Liabilities
Options	18,194		Option pricing models	Volatility Credit spreads	38%
Contingent consideration	6,158		Discounted cash flows	Projected cash flow and discount rate	6.6% - 24.5% (weighted average 16.4%)
Total level 3 liabilities	$	24,352

(a) The quantitative disclosures exclude financial instruments for which the determination of fair value is based on prices from prior transactions.

Fair Value Measurements, Nonrecurring

The following table presents the carrying values and fair values, at September 30, 2016 and December 31, 2015, of financial assets and liabilities and information on their classification within the fair value hierarchy which are not measured at fair value on a recurring basis. For additional information regarding the financial instruments within the scope of this disclosure, and the methods and significant assumptions used to estimate their fair value see Note 3.

	September 30, 2016						December 31, 2015						Fair Value Hierarchy
	Carrying Amount			Fair Value			Carrying Amount			Fair Value
				(dollars in thousands)
Financial Assets
Operating companies
Cash and cash equivalents	$	76,925		$	76,925		$	158,485		$	158,485		Level 1
Cash collateral pledged	13,783			13,783			10,085			10,085			Level 2
Consolidated funds
Cash and cash equivalents	10,370			10,370			13,934			13,934			Level 1
Financial Liabilities
Convertible debt	128,065		(a)	145,676		(b)	122,401		(a)	144,946		(b)	Level 2
Notes payable and other debt	78,357			84,257			68,565			71,945			Level 2

(a) The carrying amount of the convertible debt includes an unamortized discount of $19.6 million and $24.7 million as of September 30, 2016 and December 31, 2015.

(b) The convertible debt include the conversion option and is based on the last broker quote available.

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Redeemable Non-Controlling Interests in Consolidated Subsidiaries and Funds (Tables)

9 Months Ended

Sep. 30, 2016

Noncontrolling Interest [Abstract]

Redeemable non-controlling interests in consolidated subsidiaries and funds

Redeemable non-controlling interests in consolidated subsidiaries and funds and the related net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds are comprised as follows:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Redeemable non-controlling interests in consolidated subsidiaries and funds
Operating companies	$	6,791	$	10,906
Consolidated funds	325,092		176,005
	$	331,883	$	186,911

Net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds

	Three Months Ended September 30,					Nine Months Ended September 30,
	2016		2015			2016			2015
	(dollars in thousands)					(dollars in thousands)
Income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds
Operating companies	$	1,433	$	4,577		$	2,880		$	8,669
Consolidated funds	17,045		(233		)	(5,404		)	2,311
	$	18,478	$	4,344		$	(2,524	)	$	10,980

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Share-Based Compensation and Employee Ownership Plans (Tables)

9 Months Ended

Sep. 30, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity

The following table summarizes the Company's stock option activity for the nine months endedSeptember 30, 2016:

	Shares Subject to Option	Weighted Average Exercise Price/Share		Weighted Average Remaining Term	Aggregate Intrinsic Value(1)
				(in years)	(dollars in thousands)
Balance outstanding at December 31, 2015	16,667	$	4.89	1.10	$	—
Options granted	—	—		—	—
Options exercised	—	—		—	—
Options expired	—	—		—	—
Balance outstanding at September 30, 2016	16,667	$	4.89	0.35	$	—
Options exercisable at September 30, 2016	16,667	$	4.89	0.35	$	—

(1) Based on the Company's closing stock price of $3.63 on September 30, 2016 and $3.83 on December 31, 2015.

Schedule of Share-based Compensation, Stock Appreciation Rights, Activity

As of September 30, 2016, the Company's stock options were fully expensed.

The following table summarizes the Company's SAR's for the nine months endedSeptember 30, 2016:

	Shares Subject to Option	Weighted Average Exercise Price/Share		Weighted Average Remaining Term	Aggregate Intrinsic Value(1)
				(in years)	(dollars in thousands)
Balance outstanding at December 31, 2015	400,000	$	2.90	2.21	$	558
SAR's granted	—	—		—	—
SAR's acquired	—	—		—	—
SAR's expired	—	—		—	—
Balance outstanding at September 30, 2016	400,000	$	2.90	1.46	$	430
SAR's exercisable at September 30, 2016	—	$	—	—	$	—

(1) Based on the Company's closing stock price of $3.63 on September 30, 2016 and $3.83 on December 31, 2015.

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity

Restricted shares and restricted stock units are referred to collectively as restricted stock. The following table summarizes the Company's restricted share and restricted stock unit activity for the nine months endedSeptember 30, 2016:

	Nonvested Restricted Shares and Restricted Stock Units		Weighted-Average Grant Date Fair Value
Balance outstanding at December 31, 2015	21,480,364		$	4.17
Granted	8,087,610		3.48
Vested	(5,912,240	)	3.74
Canceled	—		—
Forfeited	(1,291,693	)	3.72
Balance outstanding at September 30, 2016 (1)	22,364,041		$	4.06

(1) Performance linked restricted stock units of 1,925,750 were awarded to employees of the Company in December 2013 and January 2014. An additional 2,800,000 performance linked restricted stock units were awarded in March 2016. Of the awards granted, 387,500 have been forfeited through September 30, 2016. The remaining awards, included in the outstanding balance as of September 30, 2016, will vest between March 2019 and December 2020 and will be earned only to the extent that the Company attains specified market goals relating to its volume-weighted average share price and total shareholder return in relation to certain benchmark indices and performance goals relating to aggregate net income and average return on shareholder equity. The actual number of RSUs ultimately earned could vary from zero, if performance goals are not met, to as much as 150% of the targeted award. Each RSU is equal to the one share of the Company’s Class A common stock. Compensation expense is recognized to the extent that it is probable that the Company will attain the performance goals.

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Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2016

Commitments and Contingencies Disclosure [Abstract]

Future Minimum Annual Lease and Service Payments

As of September 30, 2016, future minimum annual lease and service payments for the Company were as follows:

	Equipment Leases (a)		Service Payments		Facility Leases (b)
	(dollars in thousands)
2016	$	606	$	4,703	$	4,690
2017	2,404		13,752		16,663
2018	2,324		7,395		16,578
2019	897		2,136		14,981
2020	2		142		14,814
Thereafter	—		21		32,250
	$	6,233	$	28,149	$	99,976

(a) Equipment Leases include the Company's commitments relating to operating and capital leases. See Note 13 for further information on the capital lease minimum payments which are included in the table.

(b) The Company has entered into various agreements to sublease certain of its premises. The Company recorded sublease income related to these leases of $0.4 million and $0.5 million for the three months ended September 30, 2016 and 2015 and $1.7 million and $1.4 million and for the nine months endedSeptember 30, 2016 and 2015, respectively.

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Convertible Debt and Notes Payable (Tables)

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Schedule of Debt and Capital Lease Obligations

As of September 30, 2016 and December 31, 2015, the Company's outstanding debt was as follows:

	As of September 30, 2016		As of December 31, 2015
	(dollars in thousands)
Convertible debt	$	128,065	$	122,401
Note payable	61,145		60,831
Other notes payable	15,166		—
Revolver	—		5,000
Capital lease obligations	2,046		2,734
	$	206,422	$	190,966

Schedule of Maturities of Debt and Future Minimum Lease Payments for Capital Leases

Annual scheduled maturities of debt and minimum payments for all debt outstanding as of September 30, 2016, is as follows:

	Convertible Debt			Note Payable			Other Note Payable			Capital Lease Obligation
	(dollars in thousands)
2016	$	—		$	1,304		$	1,221		$	235
2017	4,485			5,218			4,225			938
2018	4,485			5,218			2,225			938
2019	151,743			5,218			3,702			78
2020	—			5,218			1,805			—
Thereafter	—			68,468			4,723			—
Subtotal	160,713			90,644			17,901			2,189
Less: Amount representing interest (a)	(32,648		)	(29,499		)	(2,735		)	(143		)
Total	$	128,065		$	61,145		$	15,166		$	2,046

(a) Amount necessary to reduce net minimum payments to present value calculated at the Company's implicit rate at inception. This amount also includes the unamortized discount on the convertible debt.

Schedule of Line of Credit Facilities

As of September 30, 2016, the Company has nineirrevocable letters of credit, related to leased office space, for which there is cash collateral pledged, which the Company pays a fee on the stated amount of the letter of credit. The Company also has a letter of credit, in the amount of$5.5 million, due March 2017, for which cash is pledged as collateral under a reinsurance agreement.

Location	Amount		Maturity
	(dollars in thousands)
New York	$	355	May 2017
New York	$	70	May 2017
New York	$	695	October 2016
New York	$	3,373	October 2016
New York	$	1,600	November 2016
San Francisco	$	710	January 2017
Connecticut	$	65	January 2017
New York	$	1,000	February 2017
Boston	$	382	March 2017

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Stockholder's Equity (Tables)

9 Months Ended

Sep. 30, 2016

Equity [Abstract]

Treasury Stock Activity

The following represents the activity relating to the treasury stock held by the Company during the nine months endedSeptember 30, 2016:

	Treasury stock shares	Cost (dollars in thousands)		Average cost per share
Balance outstanding at December 31, 2015	34,515,734	$	137,356	$	3.98
Shares purchased for minimum tax withholding under the Equity Plan or other similar transactions	2,578,819	8,793		3.41
Purchase of treasury stock	1,723,119	6,014		3.49
Balance outstanding at September 30, 2016	38,817,672	$	152,163	$	3.92

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Accumulated Other Comprehensive Income (Loss) (Tables)

9 Months Ended

Sep. 30, 2016

Accumulated Other Comprehensive Income / (Loss) [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	Nine Months Ended September 30,
	2016			2015
	(dollars in thousands)
Beginning Balance	$	—		$	17
Foreign currency translation	(3		)	(4		)
Ending Balance	$	(3	)	$	13

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Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Earnings Per Share, Basic and Diluted

The computation of earnings per share is as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
	(dollars in thousands, except per share data)
Net income (loss)	$	15,259		$	(6,002	)	$	(19,897	)	$	24,048
Net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	18,478			4,344			(2,524		)	10,980
Net income (loss) attributable to Cowen Group, Inc.	(3,219		)	(10,346		)	(17,373		)	13,068
Preferred stock dividends	1,698			1,603			5,094			2,358
Net income (loss) attributable to Cowen Group, Inc. common stockholders	$	(4,917	)	$	(11,949	)	$	(22,467	)	$	10,710
Shares for basic and diluted calculations:
Weighted average shares used in basic computation	107,974			109,191			107,272			111,050
Stock options	—			—			—			19
Performance based restricted stock	—			—			—			266
Stock appreciation rights	—			—			—			152
Restricted stock	—			—			—			5,762
Weighted average shares used in diluted computation	107,974			109,191			107,272			117,249
Earnings (loss) per share:
Basic	$	(0.05	)	$	(0.11	)	$	(0.21	)	$	0.10
Diluted	$	(0.05	)	$	(0.11	)	$	(0.21	)	$	0.09

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Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2016

Segment Reporting [Abstract]

Segment Reporting Information, by Segment

The following tables set forth operating results for the Company's alternative investment and broker-dealer segments and related adjustments necessary to reconcile the Company's Economic Income (Loss) measure to arrive at the Company's consolidated US GAAP net income (loss):

	Three Months Ended September 30, 2016
									Adjustments
	Alternative Investment			Broker-Dealer		Total Economic Income/(Loss)			Funds Consolidation			Other Adjustments				US GAAP
	(dollars in thousands)
Revenues
Investment banking	$	—		$	36,722	$	36,722		$	—		$	—			$	36,722
Brokerage	—			51,524		51,524			—			(1,919		)		49,605
Management fees	15,746			793		16,539			(445		)	(5,822		)	(a)	10,272
Incentive income	11,825			—		11,825			(562		)	(9,979		)	(a)	1,284
Investment Income	14,798			4,932		19,730			—			(19,730		)	(c)	—
Interest and dividends	—			—		—			—			3,906			(c)	3,906
Aircraft lease revenue	—			—		—			—			1,089			(f)	1,089
Reimbursement from affiliates	—			—		—			(76		)	2,216			(e)	2,140
Other revenue	17,145			25		17,170			—			7,942			(c)(f)	25,112
Consolidated Funds revenues	—			—		—			897			—				897
Total revenues	59,514			93,996		153,510			(186		)	(22,297		)		131,027
Expenses
Non interest expense	43,589			92,259		135,848			(429		)	12,759			(b)(c)(d)	148,178
Interest and dividends	3,205			1,079		4,284			—			3,328			(c)	7,612
Consolidated Funds expenses	—			—		—			2,469			—				2,469
Total expenses	46,794			93,338		140,132			2,040			16,087				158,259
Total other income (loss)	—			—		—			19,269			31,981			(c)	51,250
Income taxes expense / (benefit)	—			—		—			—			8,759			(b)	8,759
(Income) loss attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	(2,354		)	—		(2,354		)	(17,043		)	919				(18,478		)
Economic Income (Loss) / Net Income (loss) attributable to Cowen Group, Inc.	$	10,366		$	658	$	11,024		$	—		$	(14,243	)		$	(3,219	)

	Three Months Ended September 30, 2015
										Adjustments
	Alternative Investment			Broker-Dealer			Total Economic Income/(Loss)			Funds Consolidation			Other Adjustments				US GAAP
	(dollars in thousands)
Revenues
Investment banking	$	—		$	53,012		$	53,012		$	—		$	—			$	53,012
Brokerage	18			41,857			41,875			—			(790		)		41,085
Management fees	17,739			282			18,021			(371		)	(7,131		)	(a)	10,519
Incentive income	(8,629		)	—			(8,629		)	29			8,693			(a)	93
Investment Income	(16,781		)	(5,243		)	(22,024		)	—			22,024			(c)	—
Interest and dividends	—			—			—			—			3,604			(c)	3,604
Reimbursement from affiliates	—			—			—			(85		)	3,440			(e)	3,355
Other revenue	(9		)	573			564			—			748			(c)	1,312
Consolidated Funds revenues	—			—			—			274			—				274
Total revenues	(7,662		)	90,481			82,819			(153		)	30,588				113,254
Expenses
Non interest expense	6,133			84,721			90,854			—			2,112			(b)(c)(d)	92,966
Interest and dividends	2,970			1,287			4,257			—			3,110			(c)	7,367
Consolidated Funds expenses	—			—			—			634			—				634
Total expenses	9,103			86,008			95,111			634			5,222				100,967
Total other income (loss)	—			—			—			554			(23,924		)	(c)	(23,370		)
Income taxes expense / (benefit)	—			—			—			—			(5,081		)	(b)	(5,081		)
(Income) loss attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	(2,231		)	—			(2,231		)	233			(2,346		)		(4,344		)
Economic Income (Loss) / Net Income (loss) attributable to Cowen Group, Inc.	$	(18,996	)	$	4,473		$	(14,523	)	$	—		$	4,177			$	(10,346	)

	Nine Months Ended September 30, 2016
										Adjustments
	Alternative Investment			Broker-Dealer			Total Economic Income/(Loss)			Funds Consolidation			Other Adjustments				US GAAP
	(dollars in thousands)
Revenues
Investment banking	$	—		$	98,156		$	98,156		$	—		$	—			$	98,156
Brokerage	—			153,417			153,417			—			(5,777		)		147,640
Management fees	47,604			2,334			49,938			(1,239		)	(16,748		)	(a)	31,951
Incentive income	19,174			—			19,174			(569		)	(15,782		)	(a)	2,823
Investment Income	(444		)	(147		)	(591		)	—			591			(c)	—
Interest and dividends	—			—			—			—			11,664			(c)	11,664
Aircraft lease revenue	—			—			—			—			3,071			(f)	3,071
Reimbursement from affiliates	—			—			—			(224		)	8,492			(e)	8,268
Other revenue	19,366			84			19,450			—			21,733			(c)(f)	41,183
Consolidated Funds revenues	—			—			—			4,541			—				4,541
Total revenues	85,700			253,844			339,544			2,509			7,244				349,297
Expenses
Non interest expense	77,917			257,972			335,889			(429		)	28,170			(b)(c)(d)	363,630
Interest and dividends	9,645			3,288			12,933			—			8,933			(c)	21,866
Consolidated Funds expenses	—			—			—			6,428			—				6,428
Total expenses	87,562			261,260			348,822			5,999			37,103				391,924
Total other income (loss)	—			—			—			(1,915		)	18,092			(c)	16,177
Income taxes expense / (benefit)	—			—			—			—			(6,553		)	(b)	(6,553		)
(Income) loss attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	(6,589		)	—			(6,589		)	5,405			3,708				2,524
Economic Income (Loss) / Net Income (loss) attributable to Cowen Group, Inc.	$	(8,451	)	$	(7,416	)	$	(15,867	)	$	—		$	(1,506	)		$	(17,373	)

	Nine Months Ended September 30, 2015
									Adjustments
	Alternative Investment			Broker-Dealer		Total Economic Income/(Loss)			Funds Consolidation			Other Adjustments				US GAAP
	(dollars in thousands)
Revenues
Investment banking	$	—		$	186,763	$	186,763		$	—		$	—			$	186,763
Brokerage	41			112,292		112,333			—			(837		)		111,496
Management fees	50,885			282		51,167			(937		)	(19,061		)	(a)	31,169
Incentive income	(1,081		)	—		(1,081		)	(278		)	1,724			(a)	365
Investment Income	14,309			4,763		19,072			—			(19,072		)	(c)	—
Interest and dividends	—			—		—			—			9,846			(c)	9,846
Reimbursement from affiliates	—			—		—			(261		)	10,760			(e)	10,499
Other revenue	84			605		689			—			1,995			(c)	2,684
Consolidated Funds revenues	—			—		—			1,134			—				1,134
Total revenues	64,238			304,705		368,943			(342		)	(14,645		)		353,956
Expenses
Non interest expense	57,164			273,939		331,103			—			4,799			(b)(c)(d)	335,902
Interest and dividends	8,880			3,545		12,425			—			6,816			(c)	19,241
Consolidated Funds expenses	—			—		—			1,626			—				1,626
Total expenses	66,044			277,484		343,528			1,626			11,615				356,769
Total other income (loss)	—			—		—			4,278			27,795			(c)	32,073
Income taxes expense / (benefit)	—			—		—			—			5,212			(b)	5,212
(Income) loss attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	(6,128		)	—		(6,128		)	(2,310		)	(2,542		)		(10,980		)
Economic Income (Loss) / Net Income (loss) attributable to Cowen Group, Inc.	$	(7,934	)	$	27,221	$	19,287		$	—		$	(6,219	)		$	13,068

The following is a summary of the adjustments made to US GAAP net income (loss) for the segment to arrive at

Economic Income (Loss):

Funds Consolidation: The impacts of consolidation and the related elimination entries of the Consolidated Funds are not included in Economic Income (Loss). Adjustments to reconcile to US GAAP net income (loss) include elimination of incentive income and management fees earned from the Consolidated Funds and addition of fund expenses excluding management fees paid, fund revenues and investment income (loss).

Other Adjustments:

(a)     Economic Income (Loss) recognizes revenues (i) net of distribution fees paid to agents and (ii) our proportionate share

of management and incentive fees of certain real estate operating entities and the activist business.

(b)    Economic Income (Loss) excludes income taxes and acquisition related adjustments as management does not consider

these items when evaluating the performance of the segment.

(c)     Economic Income (Loss) recognizes Company income from proprietary trading (including interest and dividends) and

underwriting income from the Company's insurance related activities net of expenses.

(d)     Economic Income (Loss) recognizes the Company's proportionate share of expenses for certain real estate and other

operating entities for which the investments are recorded under the equity method of accounting for investments.

(e)    Reimbursement from affiliates is shown as a reduction of Economic Income expenses, but is included as a part of

revenues under US GAAP.

(f)    Aircraft lease revenue is shown net of expenses in other revenue for Economic Income (Loss).

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Organization and Business (Details)	9 Months Ended
	Sep. 30, 2016 segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of business segments	2

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Acquisition (Details) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016	Sep. 30, 2015	Sep. 23, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Proceeds from Divestiture of Businesses, Net of Cash Divested		$ 17,303,000	$ 0
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low	$ 100,000	100,000			$ 100,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	16,300,000	16,300,000			$ 10,000,000
CRT business
Business Acquisition [Line Items]
Payment to acquire business		6,300,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low	0	0
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	8,000,000	8,000,000
Business Acquisition, Transaction Costs	400,000	400,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	9,700,000	13,100,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	1,400,000	1,900,000
Cowen Prime and Cowen Prime Trading
Business Acquisition [Line Items]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	8,600,000	30,700,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	$ 400,000	2,800,000
Revenues		385,932,000
Net income (loss) attributable to Cowen Group, Inc. common stockholders		$ 10,672,000
Net income per common share - Basic (in dollars per share)		$ 0.10
Net income per common share - Diluted (in dollars per share)		$ 0.09
Alternative Solutions [Member]
Business Acquisition [Line Items]
Assets under Management, Carrying Amount				$ 2,500,000,000
Proceeds from Divestiture of Businesses, Net of Cash Divested		$ 17,300,000

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Significant Accounting Policies All Other - Quarterly (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($) cowenfund	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) cowenfund	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($) cowenfund
Total net assets of consolidated VIEs	$ 452,000		$ 452,000		$ 1,500
Deferred rent	10,400		10,400		12,000
Deferred Rent Asset, Net, Current	100		100		$ 300
Other Expenses	$ 11,898	$ 3,783	$ 32,328	$ 11,442
Variable Interest Entity, Primary Beneficiary [Member]
Number of funds, Consolidated | cowenfund	3		3		3
Other investment companies
Number of funds, Consolidated | cowenfund	6		6
Investment Company
Number of funds, Consolidated | cowenfund	2		2
Assets Held under Capital Leases [Member]
Property, Plant and Equipment, Useful Life			5 years
Minimum | Telephone and computer equipment
Property, Plant and Equipment, Useful Life			3 years
Minimum | Computer Software, Intangible Asset [Member]
Property, Plant and Equipment, Useful Life			3 years
Minimum | Furniture and Fixtures [Member]
Property, Plant and Equipment, Useful Life			5 years
Minimum | Leasehold improvements
Property, Plant and Equipment, Useful Life			5 years
Minimum | Aircraft [Member]
Property, Plant and Equipment, Useful Life			10 years
Minimum | Flight Equipment [Member]
Property, Plant and Equipment, Useful Life			4 years
Maximum | Telephone and computer equipment
Property, Plant and Equipment, Useful Life			8 years
Maximum | Computer Software, Intangible Asset [Member]
Property, Plant and Equipment, Useful Life			7 years
Maximum | Furniture and Fixtures [Member]
Property, Plant and Equipment, Useful Life			8 years
Maximum | Leasehold improvements
Property, Plant and Equipment, Useful Life			15 years
Maximum | Aircraft [Member]
Property, Plant and Equipment, Useful Life			20 years
Maximum | Flight Equipment [Member]
Property, Plant and Equipment, Useful Life			10 years
Luxembourg Reinsurance Companies [Member]
Supplementary Insurance Information, Premium Revenue	$ 8,900		$ 23,200
Other Expenses	$ 8,600		$ 20,900

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Significant Accounting Policies Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Debt, Long-term and Short-term, Combined Amount	$ 206,422	$ 190,966
Previous Accounting Guidance [Member]
Debt, Long-term and Short-term, Combined Amount		195,700
Adjustments for New Accounting Pronouncement [Member]
Other Long-term Debt		$ 191,000

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Cash Collateral Pledged (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Cash collateral pledged	$ 13,783	$ 10,085
Facility Leases
Cash collateral pledged	8,300
Letter of Credit Reinsurance Agreement | Letter of Credit
Letter of credit, borrowing capacity	$ 5,500

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Investments of Operating Entities and Consolidated Funds - Securities Owned at Fair Value - (Details) - USD ($)		9 Months Ended		12 Months Ended
		Sep. 30, 2016		Dec. 31, 2015
Investment Holdings [Line Items]
Fair Value, Concentration of Risk, Investments		$ 0		$ 0
Marketable Securities, Consolidated Funds		71,456,000		32,000,000
Securities owned, at fair value		544,644,000		610,234,000
US Government Securities
Investment Holdings [Line Items]
Marketable Securities, Consolidated Funds		3,999,000	[1]	0
Trading Securities, Debt	[2]	$ 3,776,000		$ 3,016,000
Debt securities, interest rate		0.00%
US Government Securities | Minimum
Investment Holdings [Line Items]
Debt securities, interest rate				0.00%
US Government Securities | Maximum
Investment Holdings [Line Items]
Debt securities, interest rate				5.95%
Preferred Stock
Investment Holdings [Line Items]
Marketable Securities, Consolidated Funds		$ 37,243,000		$ 32,000,000
Trading Securities, Equity	[3]	12,964,000		25,563,000
Common Stock
Investment Holdings [Line Items]
Marketable Securities, Consolidated Funds		22,950,000		0
Trading Securities, Equity	[3]	504,093,000		516,108,000
Convertible Bonds
Investment Holdings [Line Items]
Trading Securities, Debt	[4]	$ 250,000		$ 819,000
Debt securities, interest rate		8.00%
Convertible Bonds | Minimum
Investment Holdings [Line Items]
Debt securities, interest rate				8.00%
Convertible Bonds | Maximum
Investment Holdings [Line Items]
Debt securities, interest rate				10.00%
Corporate Bonds
Investment Holdings [Line Items]
Marketable Securities, Consolidated Funds		$ 5,452,000	[5]	$ 0
Trading Securities, Debt	[6]	$ 17,794,000		$ 47,192,000
Corporate Bonds | Minimum
Investment Holdings [Line Items]
Debt securities, interest rate		3.25%		3.25%
Corporate Bonds | Maximum
Investment Holdings [Line Items]
Debt securities, interest rate		13.00%		9.00%
Warrants and Rights
Investment Holdings [Line Items]
Marketable Securities, Consolidated Funds		$ 3,000		$ 0
Trading Securities, Equity		5,762,000		3,059,000
Mutual Funds
Investment Holdings [Line Items]
Trading Securities, Equity	[7]	5,000		14,477,000
Loans
Investment Holdings [Line Items]
Marketable Securities, Consolidated Funds		$ 1,809,000		0
Consolidated Funds | Corporate Bonds | Minimum
Investment Holdings [Line Items]
Debt securities, interest rate		5.88%
Consolidated Funds | Corporate Bonds | Maximum
Investment Holdings [Line Items]
Debt securities, interest rate		14.37%
Consolidated Funds | US Government Agencies Debt Securities [Member]
Investment Holdings [Line Items]
Debt securities, interest rate		0.00%
Enterprise Master
Investment Holdings [Line Items]
Securities owned, at fair value		$ 2,546,000		2,781,000
Enterprise Master | Restricted Stock
Investment Holdings [Line Items]
Securities owned, at fair value		124,000		124,000
Enterprise Master | Preferred Stock
Investment Holdings [Line Items]
Securities owned, at fair value		1,587,000		1,484,000
Enterprise Master | Common Stock
Investment Holdings [Line Items]
Securities owned, at fair value		835,000		724,000
Enterprise Master | Rights
Investment Holdings [Line Items]
Securities owned, at fair value		0		321,000
Enterprise Master | Trade Claims
Investment Holdings [Line Items]
Securities owned, at fair value		0		128,000
Merger Master
Investment Holdings [Line Items]
Securities owned, at fair value		665,142,000		157,921,000
Merger Master | Common Stock
Investment Holdings [Line Items]
Securities owned, at fair value		650,699,000		157,429,000
Merger Master | Corporate Bonds
Investment Holdings [Line Items]
Securities owned, at fair value		$ 14,443,000		$ 492,000	[8]
Debt securities, interest rate		6.50%		5.25%
Caerus Master [Member] | Common Stock
Investment Holdings [Line Items]
Securities owned, at fair value		$ 5,300,000
Common Stock
Investment Holdings [Line Items]
Trading Securities, Equity	[3]			$ 7,400,000
Preferred Stock
Investment Holdings [Line Items]
Trading Securities, Equity	[3]	$ 4,200,000		7,700,000
Affiliated Entity | Mutual Funds
Investment Holdings [Line Items]
Trading Securities, Equity	[7]			$ 13,400,000

[1] As of September 30, 2016, maturity was December 2016 with an interest rate of 0%.

[2] As of September 30, 2016, maturities ranged from December 2016 to August 2017 with an interest rate of 0%. As of December 31, 2015, maturities ranged from January 2016 to August 2016 with interest rates ranged between 0% to 5.95%.

[3] Included in preferred stocks are investments in securities for which the Company has elected the fair value option with the fair value of $4.2 million at September 30, 2016 and preferred and common stock of $7.7 million and $7.4 million, respectively, at December 31, 2015. These investments were acquired in connection with merchant banking transactions.

[4] As of September 30, 2016, the maturity was March 2018 with an interest rate of 8%. As of December 31, 2015, maturities ranged from July 2016 to March 2018 with interest rates ranged between 8% to 10.00%.

[5] As of September 30, 2016, maturities ranged from October 2017 to May 2049 and interest rates ranged between 5.88% and 14.37%.

[6] As of September 30, 2016, maturities ranged from October 2016 to February 2046 and interest rates ranged between 3.25% to 13.00%. As of December 31, 2015, maturities ranged from March 2016 to February 2046 and interest rates ranged between 3.25% to 9.00%.

[7] Included in this amount as of December 31, 2015, are investments in affiliated funds of $13.4 million all of which was liquidated during the three months ended March 31, 2016.

[8] As of September 30, 2016, the maturity was January 2024 with an interest rate of 6.5%. As of December 31, 2015, the maturity was June 2024 with an interest rate of 5.25%.

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Investments of Operating Entities and Consolidated Funds - Derivatives (Details) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2016 USD ($) contract shares	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) contract shares	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($) contract	Mar. 10, 2014 USD ($) $ / shares
Derivative [Line Items]
Payable for derivatives		$ 276		$ 276		$ 0
Receivable on derivatives		429		$ 429		0
Warrants issued					$ 15,200
Cost of hedge transaction and warrant, net							$ 20,500
Trading days for expiration				80 days
Receivable on derivative contracts, at fair value		27,428		$ 27,428		39,618
Payable for derivative contracts, at fair value		17,021		17,021		21,183
Equity Swaps
Derivative [Line Items]
Receivable on derivatives		366		366
Receivable on derivative contracts, at fair value		1,442		1,442		2,327
Payable for derivative contracts, at fair value		0		0		71
Derivative Asset, Notional Amount		67,059		67,059		118,488
Derivative Liability, Notional Amount		0		0		7,605
Futures
Derivative [Line Items]
Payable for derivatives		246		246
Receivable on derivative contracts, at fair value		704		704		189
Payable for derivative contracts, at fair value		1,235		1,235		101
Derivative Asset, Notional Amount		13,935		13,935		9,416
Derivative Liability, Notional Amount		42,736		42,736		11,995
Currency Forwards
Derivative [Line Items]
Receivable on derivatives		1		1
Receivable on derivative contracts, at fair value		17		17		659
Payable for derivative contracts, at fair value		37		37		463
Derivative Asset, Notional Amount		59,902		59,902		67,862
Derivative Liability, Notional Amount		24,650		24,650		44,156
Options
Derivative [Line Items]
Receivable on derivatives		62		62
Receivable on derivative contracts, at fair value	[1]	$ 22,941		$ 22,941		$ 31,456
Derivative Asset, Number of Instruments Held | contract	[1]	242,968		242,968		289,433
Put Option
Derivative [Line Items]
Payable for derivatives		$ 30		$ 30
Payable for derivative contracts, at fair value	[2]	$ 15,749		$ 15,749		$ 20,548
Derivative Liability, Number of Instruments Held | contract	[2]	11,235		11,235		16,632
Foreign Exchange Option
Derivative [Line Items]
Receivable on derivative contracts, at fair value		$ 2,324		$ 2,324		$ 4,987
Derivative Asset, Notional Amount		245,700		245,700		283,797
Receivables from Brokers-Dealers and Clearing Organizations
Derivative [Line Items]
Collateral posted		23,100		23,100		27,100
Enterprise Master
Derivative [Line Items]
Receivable (payable) on derivative contracts, at fair value		0		0		(4)
Merger Master
Derivative [Line Items]
Receivable on derivative contracts, at fair value		5,512		5,512		2,511
Payable for derivative contracts, at fair value		1,586		1,586		593
Merger Master | Equity Swaps
Derivative [Line Items]
Receivable on derivative contracts, at fair value		2,525		2,525		1,001
Payable for derivative contracts, at fair value		0		0		30
Merger Master | Currency Forwards
Derivative [Line Items]
Receivable on derivative contracts, at fair value		0		0		235
Merger Master | Options
Derivative [Line Items]
Receivable on derivative contracts, at fair value		2,987		2,987		1,275
Merger Master | Put Option
Derivative [Line Items]
Payable for derivative contracts, at fair value		$ 1,586		$ 1,586		563
Common Stock Class A
Derivative [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares		28,048,786		28,048,786
Class of Warrant, Exercise Price of Warrants or Rights | $ / shares							$ 7.18
Convertible Debt
Derivative [Line Items]
Call Option, Fair Value		$ 13,000		$ 13,000			$ 35,700
Receivable on derivatives contracts, at fair value [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset		27,428		27,428		39,618
Derivative Asset, Fair Value, Amount Offset Against Collateral	[3]	0		0		0
Receivable on derivative contracts, at fair value		27,428		27,428		39,618
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	[4]	4,278		4,278		9,339
Derivative asset, net of offset		23,150		23,150		30,279
Financial Instruments, Owned and Pledged as Collateral, at Fair Value		0		0		0
Payable for derivatives contracts, at fair value [Member]
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability		17,021		17,021		21,183
Derivative Liability, Fair Value, Amount Offset Against Collateral	[3]	0		0		0
Payable for derivative contracts, at fair value		17,021		17,021		21,183
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	[4]	37		37		534
Derivative Liability, net of offset		16,984		16,984		20,649
Financial Instruments, Owned and Pledged as Collateral, at Fair Value		0		0		0
Other Income [Member]
Derivative [Line Items]
Realized and unrealized gains/(losses) related to derivatives trading activities		(2,800)	$ (200)	(10,400)	$ (5,600)
Currency Forwards | Enterprise Master
Derivative [Line Items]
Receivable (payable) on derivative contracts, at fair value		$ 0		$ 0		$ (4)

[1] Includes index, equity, commodity future and cash conversion options.

[2] Includes index, equity, commodity future and cash conversion options.

[3] Includes financial instruments subject to enforceable master netting provisions that are permitted to be offset to the extent an event of default has occurred.

[4] Includes the amount of collateral held or posted.

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Investments of Operating Entities and Consolidated Funds - Other Investments - Quarterly (Details) - USD ($) $ in Thousands	Sep. 30, 2016		Dec. 31, 2015
Investment Holdings [Line Items]
Other investments	$ 167,450		$ 140,647
Portfolio Funds, at fair value
Investment Holdings [Line Items]
Other investments	115,682	[1]	113,281	[2]
Equity Method Investments
Investment Holdings [Line Items]
Other investments	51,485		27,067
Lehman claims, at fair value
Investment Holdings [Line Items]
Other investments	$ 283		$ 299

[1] In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share (or its equivalent) as a practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the condensed consolidated statement of financial condition.

[2] In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share (or its equivalent) as a practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the condensed consolidated statement of financial condition.

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Investments of Operating Entities and Consolidated Funds - Portfolio Funds - (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2016		Sep. 30, 2015	Dec. 31, 2015
Investment Holdings [Line Items]
Portfolio Funds, Consolidated Funds		$ 391,872			$ 263,818
Other investments		167,450			140,647
Enterprise LP
Investment Holdings [Line Items]
Portfolio Funds, Consolidated Funds		110,290			111,075
Merger Fund
Investment Holdings [Line Items]
Portfolio Funds, Consolidated Funds		275,407			74,348
Caerus LP [Member]
Investment Holdings [Line Items]
Portfolio Funds, Consolidated Funds		6,175			0
Quadratic Master
Investment Holdings [Line Items]
Portfolio Funds, Consolidated Funds		0			78,395
Portfolio Funds
Investment Holdings [Line Items]
Other investments		115,682	[1]		113,281	[2]
Portfolio Funds | Healthcare Royalty Partners | Affiliated Entity
Investment Holdings [Line Items]
Other investments	[3],[4]	9,058			12,127
Portfolio Funds | Healthcare Royalty Partners II | Affiliated Entity
Investment Holdings [Line Items]
Other investments	[3],[4]	4,885			6,006
Portfolio Funds | Orchard Square Partners Credit Fund LP
Investment Holdings [Line Items]
Other investments	[5]	$ 4,241			4,170
Portfolio Funds | Orchard Square Partners Credit Fund LP | Affiliated Entity
Investment Holdings [Line Items]
Required notice period, redemption		60 days		60 days
Penalty on redemptions of less than one year		4.00%		4.00%
Portfolio Funds | Starboard Value and Opportunity Fund LP | Affiliated Entity
Investment Holdings [Line Items]
Other investments	[4],[6]	$ 27,984			20,369
Required notice period, withdrawal		90 days		90 days
Portfolio Funds | Starboard Partners Fund LP | Affiliated Entity
Investment Holdings [Line Items]
Other investments	[4],[7]	$ 3,969			14,036
Required notice period, withdrawal		180 days		180 days
Portfolio Funds | Starboard Leaders Fund LP | Affiliated Entity
Investment Holdings [Line Items]
Other investments	[4],[8]	$ 1,147			1,080
Unfunded Commitment cancellation		30 days		30 days
Portfolio Funds | Formation 8 Partners Fund I LP
Investment Holdings [Line Items]
Other investments	[9]	$ 21,784			19,454
Portfolio Funds | Eclipse Ventures Fund I, L.P.
Investment Holdings [Line Items]
Other investments	[10]	1,705			1,101
Portfolio Funds | RCG LV Park Lane LLC | Affiliated Entity
Investment Holdings [Line Items]
Other investments	[4],[11]	971			809
Portfolio Funds | RCGL 12E13th LLC | Affiliated Entity
Investment Holdings [Line Items]
Other investments	[4],[12]	402			609
Portfolio Funds | RCGLongview Debt Fund V, L.P. | Affiliated Entity
Investment Holdings [Line Items]
Other investments	[4],[12]	16,325			18,147
Portfolio Funds | RCG LPP SME Co-Invest, L.P. | Affiliated Entity
Investment Holdings [Line Items]
Other investments	[4],[13]	2,468			2,468
Portfolio Funds | Quadratic Fund LLC [Member] | Affiliated Entity
Investment Holdings [Line Items]
Other investments	[4],[14]	$ 6,684			0
Required notice period, withdrawal		30 days		30 days
Portfolio Funds | Other Funds
Investment Holdings [Line Items]
Other investments	[4],[15]	$ 8,241			6,909
Portfolio Funds | Other Funds | Affiliated Entity
Investment Holdings [Line Items]
Other investments	[4],[16]	5,818			5,996
Portfolio Funds | Enterprise Master
Investment Holdings [Line Items]
Other investments		117,156			111,676
Portfolio Funds | Enterprise Master | RCG Longview Equity Fund, LP | Affiliated Entity | Real Estate Strategy
Investment Holdings [Line Items]
Other investments	[17]	4,847			7,635
Portfolio Funds | Enterprise Master | RCG Longview II, LP | Affiliated Entity | Real Estate Strategy
Investment Holdings [Line Items]
Other investments	[17]	742			698
Portfolio Funds | Enterprise Master | RCG Longview Debt Fund IV, LP | Affiliated Entity | Real Estate Strategy
Investment Holdings [Line Items]
Other investments	[17]	1,841			3,577
Portfolio Funds | Enterprise Master | RCG Soundview, LLC | Affiliated Entity | Real Estate Strategy
Investment Holdings [Line Items]
Other investments	[17]	452			452
Portfolio Funds | Enterprise Master | RCG Urban American Real Estate Fund, L.P. | Affiliated Entity | Real Estate Strategy
Investment Holdings [Line Items]
Other investments	[17]	307			312
Portfolio Funds | Enterprise Master | RCG Special Opportunities Fund, Ltd | Affiliated Entity | Multi-strategy
Investment Holdings [Line Items]
Other investments	[17]	95,023			81,544
Portfolio Funds | Enterprise Master | RCG Energy, LLC | Affiliated Entity | Energy Strategy
Investment Holdings [Line Items]
Other investments	[17]	0			1,189
Portfolio Funds | Enterprise Master | RCG Renergys, LLC | Affiliated Entity | Energy Strategy
Investment Holdings [Line Items]
Other investments	[17]	1			1
Portfolio Funds | Enterprise Master | Other Private Investment | Various Strategies
Investment Holdings [Line Items]
Other investments		9,164			10,515
Portfolio Funds | Enterprise Master | Real Estate Funds | Real Estate Strategy
Investment Holdings [Line Items]
Other investments	[17]	$ 4,779			$ 5,753
Corporate Bonds
Investment Holdings [Line Items]
Securities sold, not yet purchased, interest rate		5.55%			5.55%

[1] In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share (or its equivalent) as a practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the condensed consolidated statement of financial condition.

[2] In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share (or its equivalent) as a practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the condensed consolidated statement of financial condition.

[3] HealthCare Royalty Partners, L.P. and HealthCare Royalty Partners II, L.P. are private equity funds and therefore distributions will be made when cash flows are received from the underlying investments, typically on a quarterly basis.

[4] These portfolio funds are affiliates of the Company.

[5] Orchard Square Partners Credit Fund LP has a quarterly redemption policy with a 60 day notice period and a 4% penalty on redemptions of investments of less than a year in duration.

[6] Starboard Value and Opportunity Fund LP permits quarterly withdrawals upon 90 days notice.

[7] Starboard Partners Fund LP permits redemptions on a semi-annual basis on 180 days prior written notice subsequent to an initial two year lock up.

[8] Starboard Leaders Fund LP does not permit withdrawals, but instead allows terminations with respect to capital commitments upon 30 days prior written notice at any time following the first anniversary of an investors initial capital contribution.

[9] Formation8 Partners Fund I, L.P. is a private equity fund which invests in early stage and growth transformational information and energy technology companies. Distributions will be made when the underlying investments are liquidated.

[10] Eclipse Ventures Fund I, L.P. (Formerly Formation8 Partners Hardware Fund I, L.P.) is a private equity fund which invests in early stage and growth hardware companies. Distributions will be made when the underlying investments are liquidated.

[11] RCG LV Park Lane LLC is a single purpose entity formed to participate in a joint venture which acquired, at a discount, the mortgage notes on a portfolio of multifamily real estate properties located in Birmingham, Alabama. RCG LV Park Lane LLC is a private equity fund and therefore distributions will be made when the underlying investments are liquidated.

[12] RCGL 12E13th LLC and RCG Longview Debt Fund V, L.P. are real estate private equity structures and therefore distributions will be made when the underlying investments are liquidated.

[13] RCG LPP2 PNW5 Co-Invest, L.P. is a single purpose entity formed to participate in a joint venture which acquired five multi-unit residential rental properties located in the Pacific Northwest. RCG LPP2 PNW5 Co-Invest, L.P. is a private equity structure and therefore distributions will be made when the underlying investments are liquidated.

[14] Quadratic Fund LLC permits redemptions on a 30 days prior written notice.

[15] Other private investment represents the Company's closed end investment in a portfolio fund that invests in a wireless broadband communication provider in Italy.

[16] The majority of these funds are affiliates of the Company or are managed by the Company and the investors can redeem from these funds as investments are liquidated.

[17] Affiliates of the Company.

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Investments of Operating Entities and Consolidated Funds - Equity Method Investments - (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Schedule of Equity Method Investments [Line Items]
Other investments	$ 167,450		$ 167,450		$ 140,647
Net Gains (Losses) on Securities, Derivatives and Other Investments
Schedule of Equity Method Investments [Line Items]
Income (Loss) from Equity Method Investments	(100)	$ (5,900)	16,000	$ 3,400
Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Other investments	51,485		51,485		27,067
Equity Method Investee, Exceeded Threshold for Income Test [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Summarized Financial Information, Revenue	9,005	(8,686)	9,747	(5,182)
Equity Method Investment, Summarized Financial Information, Expenses	0	0	0	0
Equity Method Investment, Summarized Financial Information, Gain (Loss) on Investments	37	(132)	92	(67)
Equity Method Investment, Summarized Financial Information, Net Income (Loss)	9,042	$ (8,818)	9,839	$ (5,249)
RCG Longview Debt Fund IV Management, LLC | Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Other investments	331		331		331
RCG Longview Debt Fund V Partners, LLC | Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Other investments	6,594		6,594		4,655
Healthcare Royalty GP, LLC | Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Other investments	739		739		989
Healthcare Royalty GP II, LLC | Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Other investments	827		827		1,017
Healthcare Royalty GP III, LLC | Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Other investments	197		197		88
Healthcare Overflow Fund GP, LLC [Member] | Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Other investments	101		101		0
Surf House Ocean Views Holdings, LLC | Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Other investments	13,383		13,383		0
Starboard Value LP | Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Other investments	25,529		25,529		15,769
RCG Longview Management, LLC | Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Other investments	714		714		656
RCG Urban American, LLC | Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Other investments	107		107		120
RCG Urban American Management, LLC | Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Other investments	379		379		379
RCG Longview Equity Management, LLC | Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Other investments	114		114		114
Urban American Real Estate Fund II, LLC | Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Other investments	1,311		1,311		1,211
RCG Kennedy House, LLC | Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Other investments	227		227		304
Equity Method Investee, Other | Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Other investments	$ 932		$ 932		1,434
Minimum
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	20.00%		20.00%
Maximum
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	55.00%		55.00%
Clawback Obligation [Member]
Schedule of Equity Method Investments [Line Items]
Other Commitment	$ 6,200		$ 6,200		6,200
Clawback Obligation [Member] | RCG Longview Partners II, LLC
Schedule of Equity Method Investments [Line Items]
Other Commitment	$ 6,200		$ 6,200		$ 6,200

XML

Investments of Operating Entities and Consolidated Funds - Securities Sold, Not Yet Purchased (Details) - USD ($)		Sep. 30, 2016	Dec. 31, 2015
Investments Sold, Not yet Purchased [Line Items]
Securities sold, not yet purchased, at fair value		$ 1,540,000	$ 0
Securities sold, not yet purchased, at fair value		212,183,000	257,159,000
Corporate Bonds
Investments Sold, Not yet Purchased [Line Items]
Securities sold, not yet purchased, at fair value	[1]	1,145,000
Securities sold, not yet purchased, at fair value	[2]	$ 3,653,000	$ 58,000
Securities sold, not yet purchased, interest rate		5.55%	5.55%
Corporate Bonds | Minimum
Investments Sold, Not yet Purchased [Line Items]
Securities sold, not yet purchased, interest rate		3.25%	3.25%
Corporate Bonds | Maximum
Investments Sold, Not yet Purchased [Line Items]
Securities sold, not yet purchased, interest rate		6.88%	6.88%
Corporate Bonds | Consolidated Funds | Minimum
Investments Sold, Not yet Purchased [Line Items]
Securities sold, not yet purchased, interest rate		4.38%
Corporate Bonds | Consolidated Funds | Maximum
Investments Sold, Not yet Purchased [Line Items]
Securities sold, not yet purchased, interest rate		9.25%
Common Stock
Investments Sold, Not yet Purchased [Line Items]
Securities sold, not yet purchased, at fair value		$ 395,000
Securities sold, not yet purchased, at fair value		208,491,000	$ 257,101,000
Common Stock | Merger Master
Investments Sold, Not yet Purchased [Line Items]
Securities sold, not yet purchased, at fair value		203,800,000	73,800,000
Common Stock | Caerus Master [Member]
Investments Sold, Not yet Purchased [Line Items]
Securities sold, not yet purchased, at fair value		3,800,000
Warrants and Rights
Investments Sold, Not yet Purchased [Line Items]
Securities sold, not yet purchased, at fair value		$ 39,000	$ 0

[1] As of September 30, 2016, maturities ranged from September 2019 to March 2025 and interest rates ranged between 4.38% and 9.25%.

[2] As of September 30, 2016 and December 31, 2015, the maturities ranged from June 2017 to January 2026 with interest rates ranged between 3.25% to 6.88%

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Investments of Operating Entities and Consolidated Funds - Variable Interest Entities (Details) - Variable Interest Entity, Not Primary Beneficiary - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Variable Interest Entity [Line Items]
Total assets of nonconsolidated variable interest entities	$ 5,100.0	$ 3,100.0
Total liabilities of nonconsolidated variable interest entities	700.0	473.3
Maximum exposure regarding nonconsolidated variable interest entities	$ 483.9	$ 327.8

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Fair Value Measurements for Operating Entities and Consolidated Funds Assets and Liabilities at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2016		Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	$ 644,240		$ 682,151
Financial Liabilities Fair Value Disclosure	238,221		284,500
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low	100		100
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	16,300		10,000
Other investments	167,450		140,647
Other Investments, Consolidated Funds	391,872		263,818
Investments	1,203,279		1,086,317
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	$ 525,390		$ 543,258
Percentage of Total Assets at Fair Value	81.60%		79.60%
Percentage of Total Liabilities at Fair Value	89.40%		91.20%
Financial Liabilities Fair Value Disclosure	$ 212,965		$ 259,556
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	$ 40,120		$ 68,859
Percentage of Total Assets at Fair Value	6.20%		10.10%
Percentage of Total Liabilities at Fair Value	2.10%		0.20%
Financial Liabilities Fair Value Disclosure	$ 5,094		$ 592
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	$ 78,730		$ 70,034
Percentage of Total Assets at Fair Value	12.20%		10.30%
Percentage of Total Liabilities at Fair Value	8.50%		8.60%
Financial Liabilities Fair Value Disclosure	$ 20,162		$ 24,352
Warrants and Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	39
Warrants and Rights | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	39
Warrants and Rights | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0
Warrants and Rights | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0
Common Stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	208,491		257,101
Common Stock | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	208,478		257,101
Common Stock | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	13		0
Common Stock | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0		0
Corporate Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	3,653		58
Corporate Bonds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0		0
Corporate Bonds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	3,653		58
Corporate Bonds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0		0
Contingent liability payable
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	7,201	[1]	6,158	[2]
Contingent liability payable | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0	[1]	0	[2]
Contingent liability payable | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0	[1]	0	[2]
Contingent liability payable | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	7,201	[1]	6,158	[2]
Futures | Options
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	1,235		101
Futures | Options | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	1,235		101
Futures | Options | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0		0
Futures | Options | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0		0
Currency forward | Options
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	37		463
Currency forward | Options | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0		0
Currency forward | Options | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	37		463
Currency forward | Options | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0		0
Equity Swaps | Options
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure			71
Equity Swaps | Options | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure			0
Equity Swaps | Options | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure			71
Equity Swaps | Options | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure			0
Put Option | Options
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	15,749		20,548
Put Option | Options | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	2,788		2,354
Put Option | Options | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0		0
Put Option | Options | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure			18,194
US Government Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	3,776		3,016
US Government Securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	3,776		3,016
US Government Securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		0
US Government Securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		0
Preferred Stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	12,964		25,563
Preferred Stock | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		7,891
Preferred Stock | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		4,800
Preferred Stock | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	12,964		12,872
Common Stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	504,093		516,108
Common Stock | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	490,854		505,303
Common Stock | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	1,638		7,527
Common Stock | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	11,601		3,278
Convertible Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	250		819
Convertible Bonds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		0
Convertible Bonds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		0
Convertible Bonds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	250		819
Corporate Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	17,794		47,192
Corporate Bonds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		0
Corporate Bonds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	17,574		47,192
Corporate Bonds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	220		0
Warrants and Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	5,762		3,059
Warrants and Rights | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	2,205		487
Warrants and Rights | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		0
Warrants and Rights | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	3,557		2,572
Mutual Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	5		14,477
Mutual Funds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	5		14,477
Mutual Funds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		0
Mutual Funds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		0
Derivative Assets | Futures
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	704		189
Derivative Assets | Futures | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	704		189
Derivative Assets | Futures | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		0
Derivative Assets | Futures | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		0
Derivative Assets | Currency forward
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	17		659
Derivative Assets | Currency forward | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		0
Derivative Assets | Currency forward | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	17		659
Derivative Assets | Currency forward | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		0
Derivative Assets | Equity Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	1,442		2,327
Derivative Assets | Equity Swaps | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		0
Derivative Assets | Equity Swaps | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	1,442		2,327
Derivative Assets | Equity Swaps | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		0
Derivative Assets | Options
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	25,265		36,443
Derivative Assets | Options | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	9,484		11,895
Derivative Assets | Options | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	2,820		6,354
Derivative Assets | Options | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	12,961		18,194
Lehman claims, at fair value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	283		299
Other investments	283		299
Lehman claims, at fair value | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		0
Lehman claims, at fair value | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		0
Lehman claims, at fair value | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	283		299
Portfolio Funds, at fair value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	115,682	[3]	113,281	[4]
Other Investments, Consolidated Funds	391,872	[3]	263,818	[4]
Equity Method Investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	51,485		27,067
Consolidated Funds | Common Stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	395
Consolidated Funds | Common Stock | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	395
Consolidated Funds | Common Stock | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0
Consolidated Funds | Common Stock | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0
Consolidated Funds | Corporate Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	1,145
Consolidated Funds | Corporate Bonds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0
Consolidated Funds | Corporate Bonds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	1,145
Consolidated Funds | Corporate Bonds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0
Consolidated Funds | Futures | Options
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	246
Consolidated Funds | Futures | Options | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0
Consolidated Funds | Futures | Options | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	246
Consolidated Funds | Futures | Options | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0
Consolidated Funds | Put Option | Options
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	30
Consolidated Funds | Put Option | Options | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	30
Consolidated Funds | Put Option | Options | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0
Consolidated Funds | Put Option | Options | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Liabilities Fair Value Disclosure	0
Consolidated Funds | Loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	1,809
Consolidated Funds | Loans | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0
Consolidated Funds | Loans | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	1,809
Consolidated Funds | Loans | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0
Consolidated Funds | US Government Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	3,999
Consolidated Funds | US Government Securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	3,999
Consolidated Funds | US Government Securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0
Consolidated Funds | US Government Securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0
Consolidated Funds | Preferred Stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	37,243		32,000
Consolidated Funds | Preferred Stock | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0		0
Consolidated Funds | Preferred Stock | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	352		0
Consolidated Funds | Preferred Stock | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	36,891		$ 32,000
Consolidated Funds | Common Stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	22,950
Consolidated Funds | Common Stock | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	14,306
Consolidated Funds | Common Stock | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	8,644
Consolidated Funds | Common Stock | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0
Consolidated Funds | Corporate Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	5,452
Consolidated Funds | Corporate Bonds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0
Consolidated Funds | Corporate Bonds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	5,452
Consolidated Funds | Corporate Bonds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0
Consolidated Funds | Warrants and Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	3
Consolidated Funds | Warrants and Rights | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0
Consolidated Funds | Warrants and Rights | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0
Consolidated Funds | Warrants and Rights | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	3
Consolidated Funds | Derivative Assets | Futures
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	366
Consolidated Funds | Derivative Assets | Futures | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0
Consolidated Funds | Derivative Assets | Futures | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	366
Consolidated Funds | Derivative Assets | Futures | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0
Consolidated Funds | Derivative Assets | Currency forward
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	1
Consolidated Funds | Derivative Assets | Currency forward | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0
Consolidated Funds | Derivative Assets | Currency forward | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	1
Consolidated Funds | Derivative Assets | Currency forward | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0
Consolidated Funds | Derivative Assets | Options
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	62
Consolidated Funds | Derivative Assets | Options | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	57
Consolidated Funds | Derivative Assets | Options | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	5
Consolidated Funds | Derivative Assets | Options | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	$ 0

[1] In accordance with the terms of the purchase agreements for acquisitions that closed during 2012 and the third and fourth quarter of 2015 and the second quarter of 2016, the Company is required to pay to the sellers a portion of future net income of the acquired businesses, if certain revenue targets are achieved through the periods ended August 2016, December 2018, December 2020, and June 2018, respectively. The Company estimated the contingent consideration liability using the income approach (discounted cash flow method) which requires the Company to make estimates and assumptions regarding the future cash flows and profits. Changes in these estimates and assumptions could have a significant impact on the amounts recognized. The undiscounted amounts as of September 30, 2016 can range from $0.1 million to $16.3 million.

[2] In accordance with the terms of the purchase agreements for acquisitions that closed during 2012 and the third and fourth quarter of 2015, the Company is required to pay to the sellers a portion of future net income of the acquired businesses, if certain revenue targets are achieved through the periods ended August 2016, December 2018, and December 2020, respectively. The Company estimated the contingent consideration liability using the income approach (discounted cash flow method) which requires the Company to make estimates and assumptions regarding the future cash flows and profits. Changes in these estimates and assumptions could have a significant impact on the amounts recognized. The undiscounted amounts as of December 31, 2015 can range from $0.1 million to $10.0 million.

[3] In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share (or its equivalent) as a practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the condensed consolidated statement of financial condition.

[4] In accordance with US GAAP, certain investments that are measured at fair value using the net asset value per share (or its equivalent) as a practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the condensed consolidated statement of financial condition.

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Fair Value Measurements for Operating Entities and Consolidated Funds Unobservable Input Roll Forward (Details) - USD ($)		3 Months Ended				9 Months Ended
		Sep. 30, 2016		Sep. 30, 2015		Sep. 30, 2016		Sep. 30, 2015
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value, Between Level 1 and 2 transfers, amount		$ 0				$ 0
Preferred Stock
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance Asset Value		13,242,000		$ 23,462,000		12,872,000		$ 12,517,000
Asset, Transfers In		0		0		0		0
Asset, Transfers Out		0		9,000,000	[1],[2]	1,000,000	[2]	15,823,000	[1],[2]
Purchases/(covers)		250,000		3,500,000		450,000		21,750,000
(Sales)/short buys		0		(6,665,000)		(218,000)		(6,665,000)
Realized and unrealized gains (losses), asset		(528,000)		4,474,000		860,000		3,992,000
Change in Unrealized Gain (Loss), instruments still held, asset	[3]	(508,000)		1,200,000		452,000		717,000
Balance Asset Value		12,964,000		15,771,000		12,964,000		15,771,000
Common Stock
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance Asset Value		7,427,000		404,000		3,278,000		412,000
Asset, Transfers In		0		0		0		0
Asset, Transfers Out		0		0		0		0
Purchases/(covers)		3,716,000		104,000		5,710,000		104,000
(Sales)/short buys		0		(89,000)		(135,000)		(120,000)
Realized and unrealized gains (losses), asset		458,000		(102,000)		2,748,000		(79,000)
Change in Unrealized Gain (Loss), instruments still held, asset	[3]	458,000		(87,000)		2,750,000		(74,000)
Balance Asset Value		11,601,000		317,000		11,601,000		317,000
Convertible Bonds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance Asset Value		250,000		879,000		819,000		900,000
Asset, Transfers In		0		0		0		0
Asset, Transfers Out		0		0		0		0
Purchases/(covers)		0		250,000		0		250,000
(Sales)/short buys		0		0		(569,000)		0
Realized and unrealized gains (losses), asset		0		0		0		(21,000)
Change in Unrealized Gain (Loss), instruments still held, asset	[3]	0		0		0		(21,000)
Balance Asset Value		250,000		1,129,000		250,000		1,129,000
Corporate Bonds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance Asset Value		319,000				0
Asset, Transfers In		0				0
Asset, Transfers Out		0				0
Purchases/(covers)		0				279,000
(Sales)/short buys		(179,000)				(179,000)
Realized and unrealized gains (losses), asset		80,000				120,000
Change in Unrealized Gain (Loss), instruments still held, asset	[3]	45,000				85,000
Balance Asset Value		220,000				220,000
Options
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance Asset Value		8,547,000		58,576,000		18,194,000		36,807,000
Asset, Transfers In		0		0		0		0
Asset, Transfers Out		0		0		0		0
Purchases/(covers)		0		0		0		0
(Sales)/short buys		0		0		0		0
Realized and unrealized gains (losses), asset		4,414,000		(36,985,000)		(5,233,000)		(15,216,000)
Change in Unrealized Gain (Loss), instruments still held, asset	[3]	4,414,000		(36,985,000)		(5,233,000)		(15,216,000)
Balance Asset Value		12,961,000		21,591,000		12,961,000		21,591,000
Warrants and Rights
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance Asset Value		3,303,000		2,316,000		2,572,000		1,322,000
Asset, Transfers In		0		0		0		0
Asset, Transfers Out		0		0		0		0
Purchases/(covers)		0		0		1,914,000		26,000
(Sales)/short buys		0		0		(817,000)		(71,000)
Realized and unrealized gains (losses), asset		254,000		678,000		(112,000)		1,717,000
Change in Unrealized Gain (Loss), instruments still held, asset	[3]	252,000		878,000		(87,000)		1,757,000
Balance Asset Value		3,557,000		2,994,000		3,557,000		2,994,000
Lehman claims, at fair value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance Asset Value		270,000		347,000		299,000		380,000
Asset, Transfers In		0		0		0		0
Asset, Transfers Out		0		0		0		0
Purchases/(covers)		0		0		0		0
(Sales)/short buys		0		0		0		0
Realized and unrealized gains (losses), asset		13,000		(12,000)		(16,000)		(45,000)
Change in Unrealized Gain (Loss), instruments still held, asset	[3]	13,000		(12,000)		(16,000)		(45,000)
Balance Asset Value		283,000		335,000		283,000		335,000
Consolidated Funds | Preferred Stock
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance Asset Value		41,000,000		0		32,000,000		0
Asset, Transfers In		0		0
Asset, Transfers Out		(7,000,000)	[2]	7,000,000	[1]	11,000,000	[2]	(7,000,000)	[1]
Purchases/(covers)		467,000		12,000,000		13,467,000		12,000,000
(Sales)/short buys		0		0		0		0
Realized and unrealized gains (losses), asset		2,424,000		0		2,424,000		0
Change in Unrealized Gain (Loss), instruments still held, asset	[3]	2,424,000		0		2,424,000		0
Balance Asset Value		36,891,000		19,000,000		36,891,000		19,000,000
Consolidated Funds | Warrants and Rights
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance Asset Value		0				0
Asset, Transfers In		0				0
Asset, Transfers Out		0				0
Purchases/(covers)		0				0
(Sales)/short buys		0				0
Realized and unrealized gains (losses), asset		3,000				3,000
Change in Unrealized Gain (Loss), instruments still held, asset	[3]	3,000				3,000
Balance Asset Value		3,000				3,000
Consolidated Funds | Lehman claims, at fair value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance Asset Value				744,000				493,000
Asset, Transfers In				0				0
Asset, Transfers Out				0				0
Purchases/(covers)				0				0
(Sales)/short buys				(739,000)				(739,000)
Realized and unrealized gains (losses), asset				(5,000)				246,000
Change in Unrealized Gain (Loss), instruments still held, asset	[3]			0				250,000
Balance Asset Value				0				0
Options, liability
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance Liability Value		8,547,000		58,576,000		18,194,000		36,807,000
Liability, Transfers In		0		0		0		0
Liability, Transfers Out		0		0		0		0
Liability, Purchases		0		0		0		0
Liability, Sales		0		0		0		0
Realized and unrealized gains (losses), liability		4,414,000		(36,985,000)		(5,233,000)		(15,216,000)
Change in Unrealized Gain (Loss), instruments still held, liabilities	[3]	4,414,000		(36,985,000)		(5,233,000)		(15,216,000)
Balance Liability Value		12,961,000		21,591,000		12,961,000		21,591,000
Contingent liability payable
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance Liability Value		7,197,000		2,358,000		6,158,000		4,083,000
Liability, Transfers In		0		0		0		0
Liability, Transfers Out		0		0		0		0
Liability, Purchases		0		3,100,000		2,397,000		3,100,000
Liability, Sales		0		0		(3,493,000)		(1,725,000)
Realized and unrealized gains (losses), liability		4,000		0		2,139,000		0
Change in Unrealized Gain (Loss), instruments still held, liabilities	[3]	4,000		0		2,139,000		0
Balance Liability Value		$ 7,201,000		$ 5,458,000		$ 7,201,000		$ 5,458,000

[1] The company transferred investments to a consolidated fund.

[2] {F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOmY3YjUwOGYzOTIwYTQ2ODY5Y2M0Y2QzOTMwZmYzZGM0fFRleHRTZWxlY3Rpb246NUEwQTk2NkMyRUREM0FEQUYzNTA0NjhEODcxREVGRjQM}

[3] Unrealized gains/losses are reported in other income (loss) in the accompanying condensed consolidated statements of operations.

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Fair Value Measurements for Operating Entities and Consolidated Funds Fair Value Inputs, Unobservable Inputs, Quantitative Information (Details) $ in Thousands		9 Months Ended		12 Months Ended
		Sep. 30, 2016 USD ($)		Dec. 31, 2015 USD ($)		Jun. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Financial Liabilities Fair Value Disclosure		$ 238,221		$ 284,500
Assets, Fair Value Disclosure, Recurring		644,240		682,151
Contingent liability payable
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Financial Liabilities Fair Value Disclosure		7,201	[1]	6,158	[2]
Balance Liability Value		7,201		6,158		$ 7,197	$ 5,458	$ 2,358	$ 4,083
Corporate Bonds
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Balance Asset Value		220		0		319
Assets, Fair Value Disclosure, Recurring		17,794		47,192
Convertible Bonds
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Balance Asset Value		250		819		250	1,129	879	900
Assets, Fair Value Disclosure, Recurring		250		819
Warrants and Rights
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Balance Asset Value		3,557		2,572		3,303	2,994	2,316	1,322
Assets, Fair Value Disclosure, Recurring		5,762		3,059
Options
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Balance Asset Value		12,961		18,194		$ 8,547	$ 21,591	$ 58,576	$ 36,807
Level 3
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Balance Asset Value		78,730		70,034
Financial Liabilities Fair Value Disclosure		20,162		24,352
Assets, Fair Value Disclosure, Recurring		78,730		70,034
Balance Liability Value		$ 20,162		$ 24,352
Level 3 | Options | Market Approach Valuation Technique
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Volatility		40.00%		38.00%
Level 3 | Options | Market Approach Valuation Technique | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Volatility
Level 3 | Contingent liability payable
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Financial Liabilities Fair Value Disclosure		$ 7,201	[1]	$ 6,158	[2]
Level 3 | Contingent liability payable | Income Approach and Market Approach Valuation Techniques | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
DCF discount rate		0.00%		6.60%
Level 3 | Contingent liability payable | Income Approach and Market Approach Valuation Techniques | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
DCF discount rate		31.00%		24.50%
Level 3 | Contingent liability payable | Market Approach Valuation Technique
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Fair Value Assumptions, Weighted Average Volatility Rate		21.00%		16.40%
Level 3 | Contingent liability payable | Market Approach, Income Approach and Replacement Cost Valuation Techniques [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Balance Liability Value		$ 7,201		$ 6,158
Level 3 | Common and Preferred Stock | Income Approach and Market Approach Valuation Techniques
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Balance Asset Value		$ 8,803
Level 3 | Common and Preferred Stock | Market Approach Valuation Technique
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Fair Value Assumptions, Illiquidity Discount		90.00%
Fair Value Assumptions, Projected cash flow		9.50%
Volatility		35.00%		34.00%
Level 3 | Common and Preferred Stock | Market Approach, Income Approach and Replacement Cost Valuation Techniques [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Balance Asset Value				$ 2,569
Level 3 | Common and Preferred Stock | Market Approach, Income Approach and Replacement Cost Valuation Techniques [Member] | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Market multiple		4		1
Level 3 | Common and Preferred Stock | Market Approach, Income Approach and Replacement Cost Valuation Techniques [Member] | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Market multiple		9.500		4.75
Level 3 | Corporate Bonds
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Recurring		$ 220		$ 0
Level 3 | Corporate Bonds | Income Approach and Market Approach Valuation Techniques
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Recurring		$ 188
Level 3 | Corporate Bonds | Market Approach Valuation Technique
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
DCF discount rate		20.00%
Fair Value Assumptions, Illiquidity Discount		10.00%
Level 3 | Convertible Bonds
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Recurring		$ 250		$ 819
Level 3 | Convertible Bonds | Cost Approach Valuation Technique [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Fair Value Inputs, Recovery Rate				50.00%
Level 3 | Convertible Bonds | Market Approach, Income Approach and Replacement Cost Valuation Techniques [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Balance Asset Value				$ 819
Level 3 | Warrants and Rights
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Recurring		3,557		$ 2,572
Level 3 | Warrants and Rights | Income Approach and Market Approach Valuation Techniques
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Balance Asset Value		$ 3,649
Level 3 | Warrants and Rights | Market Approach Valuation Technique
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Fair Value Assumptions, Weighted Average Volatility Rate		75.00%		43.00%
Level 3 | Warrants and Rights | Market Approach Valuation Technique | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Volatility		18.00%		18.00%
Level 3 | Warrants and Rights | Market Approach Valuation Technique | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Volatility		85.00%		61.00%
Level 3 | Warrants and Rights | Market Approach, Income Approach and Replacement Cost Valuation Techniques [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Balance Asset Value				$ 2,572
Level 3 | Other Investments | Income Approach and Market Approach Valuation Techniques
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Balance Asset Value	[3]	$ 53,129
Level 3 | Other Investments | Market Approach, Income Approach and Replacement Cost Valuation Techniques [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Balance Asset Value	[3]			$ 45,880
Level 3 | Options | Market Approach Valuation Technique
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Volatility		40.00%		38.00%
Level 3 | Options | Market Approach Valuation Technique | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Volatility
Options | Derivative Assets
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Recurring		$ 25,265		$ 36,443
Options | Level 3 | Derivative Assets
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Recurring		12,961		18,194
Options | Level 3 | Derivative Assets | Income Approach and Market Approach Valuation Techniques
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Recurring		12,961
Options | Level 3 | Derivative Assets | Market Approach, Income Approach and Replacement Cost Valuation Techniques [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Recurring				18,194
Put Option | Options
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Financial Liabilities Fair Value Disclosure		15,749		20,548
Put Option | Level 3 | Options
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Financial Liabilities Fair Value Disclosure				18,194
Put Option | Level 3 | Options | Market Approach, Income Approach and Replacement Cost Valuation Techniques [Member]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Financial Liabilities Fair Value Disclosure		$ 12,961		$ 18,194

[1] In accordance with the terms of the purchase agreements for acquisitions that closed during 2012 and the third and fourth quarter of 2015 and the second quarter of 2016, the Company is required to pay to the sellers a portion of future net income of the acquired businesses, if certain revenue targets are achieved through the periods ended August 2016, December 2018, December 2020, and June 2018, respectively. The Company estimated the contingent consideration liability using the income approach (discounted cash flow method) which requires the Company to make estimates and assumptions regarding the future cash flows and profits. Changes in these estimates and assumptions could have a significant impact on the amounts recognized. The undiscounted amounts as of September 30, 2016 can range from $0.1 million to $16.3 million.

[2] In accordance with the terms of the purchase agreements for acquisitions that closed during 2012 and the third and fourth quarter of 2015, the Company is required to pay to the sellers a portion of future net income of the acquired businesses, if certain revenue targets are achieved through the periods ended August 2016, December 2018, and December 2020, respectively. The Company estimated the contingent consideration liability using the income approach (discounted cash flow method) which requires the Company to make estimates and assumptions regarding the future cash flows and profits. Changes in these estimates and assumptions could have a significant impact on the amounts recognized. The undiscounted amounts as of December 31, 2015 can range from $0.1 million to $10.0 million.

[3] The quantitative disclosures exclude financial instruments for which the determination of fair value is based on prices from prior transactions.

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Fair Value Measurements for Operating Entities and Consolidated Funds Carrying Value Disclosures (Details) - USD ($) $ in Thousands		Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014	Mar. 10, 2014
Cash and cash equivalents		$ 76,925	$ 158,485	$ 92,854	$ 129,509
Cash collateral pledged		13,783	10,085
Cash and cash equivalents, Consolidated Funds		10,370	13,934
Convertible debt	[1]	128,065	122,401
Notes payable and other debt		78,357	68,565
Convertible Debt
Convertible debt, unamortized discount		19,600	24,700			$ 35,700
Level 1
Cash and cash equivalents, Fair Value		76,925	158,485
Cash and cash equivalents, Consolidated Funds, Fair Value		10,370	13,934
Level 2
Cash collateral pledged, Fair Value		13,783	10,085
Convertible debt, Fair Value	[2]	145,676	144,946
Notes payable and other debt, Fair Value		$ 84,257	$ 71,945

[1] The carrying amount of the convertible debt includes an unamortized discount of $19.6 million and $24.7 million as of September 30, 2016 and December 31, 2015.

[2] The convertible debt include the conversion option and is based on the last broker quote available.

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Receivables from and Payable to Brokers (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Brokers and Dealers [Abstract]
Receivable from brokers	$ 77,631	$ 117,757
Payable to brokers	$ 127,216	$ 131,789

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Goodwill and Intangibles Qtlry (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill Impairment	$ 0	$ 0	$ 0	$ 0
CRT business
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill, Acquired During Period			3,500,000
Finite-lived Intangible Assets Acquired			$ 5,100,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			8 years 22 days
Amortization of Intangible Assets	$ 200,000		$ 400,000
Minimum | CRT business
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life			1 year
Maximum | CRT business
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life			9 years
Alternative Solutions [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill, Other Changes			$ 1,200,000

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Redeemable Non-Controlling Interests in Consolidated Subsidiaries and Funds (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Noncontrolling Interest [Line Items]
Redeemable non-controlling interests in consolidated subsidiaries and funds	$ 331,883		$ 331,883		$ 186,911
Net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	18,478	$ 4,344	(2,524)	$ 10,980
Operating Entities
Noncontrolling Interest [Line Items]
Redeemable non-controlling interests in consolidated subsidiaries and funds	6,791		6,791		10,906
Net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	1,433	4,577	2,880	8,669
Consolidated Funds
Noncontrolling Interest [Line Items]
Redeemable non-controlling interests in consolidated subsidiaries and funds	325,092		325,092		$ 176,005
Net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	$ 17,045	$ (233)	$ (5,404)	$ 2,311

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Share-Based Compensation and Employee Ownership Plans Narrative (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2016		Sep. 30, 2015	Sep. 30, 2016		Sep. 30, 2015	Dec. 31, 2015
Equity Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for issuance under compensation plan, in shares	1,800,000			1,800,000
Stock-compensation expense recognized in connection with compensation plan	$ 6.2		$ 5.3	$ 19.3		$ 16.2
Tax benefit of stock-compensation expense recognized in connection with compensation plan	2.5		$ 2.1	$ 8.6		$ 2.8
Equity Plans | Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, initial term				7 years
Equity Plans | Employee Stock Option | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation award, vesting period				2 years
Equity Plans | Employee Stock Option | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation award, vesting period				5 years
Equity Plans | Restricted Shares and Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense	$ 65.3			$ 65.3
Vested, shares				5,912,240
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	22,364,041	[1]		22,364,041	[1]		21,480,364
Equity Plans | Restricted Stock | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation award, vesting period				2 years
Equity Plans | Restricted Stock | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation award, vesting period				5 years
Equity Plans | Restricted Stock Units (RSUs) | Non-employee Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares				224,398
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	648,704			648,704
Equity Plans | Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense	$ 0.1			$ 0.1			$ 0.1
SAR's, initial term				5 years
Vested, shares				0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	400,000			400,000			400,000
Deferred Cash Award | Cowen Group, Inc. 2010 Equity and Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation award, vesting period				4 years
Deferred cash awards, unrecognized compensation expense	$ 37.3			$ 37.3
Deferred Cash Award | Cowen Group, Inc. 2010 Equity and Incentive Plan | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred cash award, interest rate				0.70%
Deferred Cash Award | Cowen Group, Inc. 2010 Equity and Incentive Plan | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred cash award, interest rate				0.75%

[1] Performance linked restricted stock units of 1,925,750 were awarded to employees of the Company in December 2013 and January 2014. An additional 2,800,000 performance linked restricted stock units were awarded in March 2016. Of the awards granted, 387,500 have been forfeited through September 30, 2016. The remaining awards, included in the outstanding balance as of September 30, 2016, will vest between March 2019 and December 2020 and will be earned only to the extent that the Company attains specified market goals relating to its volume-weighted average share price and total shareholder return in relation to certain benchmark indices and performance goals relating to aggregate net income and average return on shareholder equity. The actual number of RSUs ultimately earned could vary from zero, if performance goals are not met, to as much as 150% of the targeted award. Each RSU is equal to the one share of the Company’s Class A common stock. Compensation expense is recognized to the extent that it is probable that the Company will attain the performance goals.

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Share-Based Compensation and Employee Ownership Plans Deferred Cash (Details) - Cowen Group, Inc. 2010 Equity and Incentive Plan - Deferred Cash Award $ in Millions	9 Months Ended
	Sep. 30, 2016 USD ($)
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred cash awards granted	$ 25.9
Deferred cash awards, vesting period	4 years
Deferred cash awards, unrecognized compensation expense	$ 37.3
Minimum
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred cash award, interest rate	0.70%
Maximum
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred cash award, interest rate	0.75%

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Share-Based Compensation and Employee Ownership Plans Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands		9 Months Ended		12 Months Ended
		Sep. 30, 2016		Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate		0.00%
Aggregate Intrinsic Value
Closing stock price, in dollars per share		$ 3.63		$ 3.83
Equity Plans
Shares Subject to Option
Balance outstanding, beginning of period, shares		16,667
Options granted, shares		0
Options exercised, shares		0
Options expired, shares		0
Balance outstanding, end of period, shares		16,667		16,667
Options exercisable, shares		16,667
Weighted Average Exercise Price/Share
Balance outstanding, beginning of period, in dollars per share		$ 4.89
Options granted, in dollars per share		0.00
Options exercised, in dollars per share		0.00
Options expired, in dollars per share		0.00
Balance outstanding, end of period, in dollars per share		4.89		$ 4.89
Options exercisable, in dollars per share		$ 4.89
Weighted average remaining term, options outstanding		4 months 5 days		1 year 1 month 6 days
Weighted average remaining term, options exercisable		4 months 5 days
Aggregate Intrinsic Value
Balance outstanding, beginning of period		$ 0
Balance outstanding, end of period		0	[1]	$ 0
Options exercisable	[1]	$ 0

[1] Based on the Company's closing stock price of $3.63 on September 30, 2016 and $3.83 on December 31, 2015.

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Share-Based Compensation and Employee Ownership Plans SARs (Details) - USD ($) $ / shares in Units, $ in Thousands		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Aggregate Intrinsic Value
Closing stock price, in dollars per share		$ 3.63		$ 3.83
Stock Appreciation Rights
Aggregate Intrinsic Value
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Exercisable, Weighted remaining contractual term		0
Equity Plans
Aggregate Intrinsic Value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	[1]	$ 0
Equity Plans | Stock Appreciation Rights
Shares Subject to Option
Balance outstanding, beginning of period, shares		400,000
Granted, shares		0
Acquired, shares		0
Expired, shares		0
Balance outstanding, end of period, shares		400,000
Balance exercisable, shares		0
Weighted Average Exercise Price/Share
Balance outstanding, beginning of period, in dollars per share		$ 2.90
Granted, in dollars per share		0.00
Acquired, in dollars per share		0.00
Expired, in dollars per share		0.00
Balance outstanding, end of period, in dollars per share		$ 2.90
Weighted Average Remaining Term Outstanding		1 year 5 months 16 days	2 years 2 months 16 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding	[2]	$ 430		$ 558
Aggregate Intrinsic Value
Unrecognized compensation expense		$ 100		$ 100
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Exercisable, Weighted Average Grant Date Fair Value		$ 0.00

[1] Based on the Company's closing stock price of $3.63 on September 30, 2016 and $3.83 on December 31, 2015.

[2] Based on the Company's closing stock price of $3.63 on September 30, 2016 and $3.83 on December 31, 2015.

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Share-Based Compensation and Employee Ownership Plans Restricted Shares and Restricted Stock Units (Details) - Equity Plans - USD ($) $ / shares in Units, $ in Millions		1 Months Ended	2 Months Ended	3 Months Ended		9 Months Ended
		Mar. 31, 2016	Jan. 31, 2014	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Weighted-Average Grant Date Fair Value
Allocated Share-based Compensation Expense				$ 6.2	$ 5.3	$ 19.3	$ 16.2
Restricted Shares and Restricted Stock Units (RSUs)
Nonvested Restricted Shares and Restricted Stock Units
Balance outstanding, beginning of period, shares						21,480,364
Granted, shares						8,087,610
Vested, shares						(5,912,240)
Canceled, shares						0
Forfeited, shares						(1,291,693)
Balance outstanding, end of period, shares	[1]			22,364,041		22,364,041
Weighted-Average Grant Date Fair Value
Balance outstanding, beginning of period, in dollars per share						$ 4.17
Granted, in dollars per share						3.48
Vested, in dollars per share						3.74
Canceled, in dollars per share						0.00
Forfeited, in dollars per share						3.72
Balance outstanding, end of period, in dollars per share	[1]			$ 4.06		$ 4.06
Unrecognized compensation expense				$ 65.3		$ 65.3
Weighted-average recognition period for unrecognized compensation expense						2 years 8 months 9 days
Performance based restricted stock
Nonvested Restricted Shares and Restricted Stock Units
Granted, shares		2,800,000	1,925,750
Forfeited, shares						(387,500)

[1] Performance linked restricted stock units of 1,925,750 were awarded to employees of the Company in December 2013 and January 2014. An additional 2,800,000 performance linked restricted stock units were awarded in March 2016. Of the awards granted, 387,500 have been forfeited through September 30, 2016. The remaining awards, included in the outstanding balance as of September 30, 2016, will vest between March 2019 and December 2020 and will be earned only to the extent that the Company attains specified market goals relating to its volume-weighted average share price and total shareholder return in relation to certain benchmark indices and performance goals relating to aggregate net income and average return on shareholder equity. The actual number of RSUs ultimately earned could vary from zero, if performance goals are not met, to as much as 150% of the targeted award. Each RSU is equal to the one share of the Company’s Class A common stock. Compensation expense is recognized to the extent that it is probable that the Company will attain the performance goals.

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Income Taxes - Quarterly (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Effective Income Tax Rate, Percent	24.77%	17.81%
Statutory rate, Percent	35.00%	35.00%
Undistributed Earnings of Foreign Subsidiaries	$ 1.1		$ 1.0
Tax Liabilities, Undistributed Foreign Earnings	$ 0.2		$ 0.1

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Commitments and Contingencies (Details)		3 Months Ended		9 Months Ended
		Sep. 30, 2016 USD ($) cowenfund	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) cowenfund	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Lease Obligations
Net rent expense		$ 4,900,000	$ 4,600,000	$ 15,400,000	$ 13,300,000
Future minimum annual lease and service payments
Sublease income related to operating leases		400,000	$ 500,000	1,700,000	$ 1,400,000
Lagunita Biosciences LLC [Member]
Future minimum annual lease and service payments
Other commitments, unfunded amount				3,500,000
Affiliated Entity
Future minimum annual lease and service payments
Other commitments, unfunded amount				7,400,000
Affiliated Entity | Healthcare Royalty Partners
Future minimum annual lease and service payments
Contractual obligation		45,800,000		45,800,000
Funding toward commitments				$ 37,900,000
Affiliated Entity | Healthcare Royalty Partners | Minimum
Future minimum annual lease and service payments
Expected call period				2 years
Affiliated Entity | Healthcare Royalty Partners | Maximum
Future minimum annual lease and service payments
Expected call period				5 years
Affiliated Entity | Eclipse Ventures Fund I, L.P.
Future minimum annual lease and service payments
Other commitments, unfunded amount				$ 900,000
Affiliated Entity | Eclipse Fund II, L.P. [Member]
Future minimum annual lease and service payments
Other commitments, unfunded amount				1,000,000
Affiliated Entity | Eclipse Continuity Fund I, L.P. [Member]
Future minimum annual lease and service payments
Other commitments, unfunded amount				900,000
Clawback Obligation
Future minimum annual lease and service payments
Contractual obligation		$ 6,200,000		$ 6,200,000		$ 6,200,000
Commitment to Invest | Lagunita Biosciences LLC [Member]
Future minimum annual lease and service payments
Term of capital commitment				3 years
Commitment to Invest | Affiliated Entity | Eclipse Ventures Fund I, L.P.
Future minimum annual lease and service payments
Term of capital commitment				1 year
Commitment to Invest | Affiliated Entity | Eclipse Fund II, L.P. [Member]
Future minimum annual lease and service payments
Term of capital commitment				8 years
Commitment to Invest | Affiliated Entity | Eclipse Continuity Fund I, L.P. [Member]
Future minimum annual lease and service payments
Term of capital commitment				8 years
Unfunded Commitments
Future minimum annual lease and service payments
Number of Real Estate Investments | cowenfund		4		4
RCG Longview Partners II, LLC | Clawback Obligation
Future minimum annual lease and service payments
Contractual obligation		$ 6,200,000		$ 6,200,000		$ 6,200,000
Equipment Leases
Future minimum annual lease and service payments
Contractual Obligation, Due in remainder of current year	[1]	606,000		606,000
Contractual Obligation, Due in Second Year	[1]	2,404,000		2,404,000
Contractual Obligation, Due in Third Year	[1]	2,324,000		2,324,000
Contractual Obligation, Due in Fourth Year	[1]	897,000		897,000
Contractual Obligation, Due in Fifth Year	[1]	2,000		2,000
Thereafter	[1]	0		0
Future minimum annual lease and service payments	[1]	6,233,000		6,233,000
Service Payments
Future minimum annual lease and service payments
Contractual Obligation, Due in remainder of current year		4,703,000		4,703,000
Contractual Obligation, Due in Second Year		13,752,000		13,752,000
Contractual Obligation, Due in Third Year		7,395,000		7,395,000
Contractual Obligation, Due in Fourth Year		2,136,000		2,136,000
Contractual Obligation, Due in Fifth Year		142,000		142,000
Thereafter		21,000		21,000
Future minimum annual lease and service payments		28,149,000		28,149,000
Facility Leases
Future minimum annual lease and service payments
Contractual Obligation, Due in remainder of current year	[2]	4,690,000		4,690,000
Contractual Obligation, Due in Second Year	[2]	16,663,000		16,663,000
Contractual Obligation, Due in Third Year	[2]	16,578,000		16,578,000
Contractual Obligation, Due in Fourth Year	[2]	14,981,000		14,981,000
Contractual Obligation, Due in Fifth Year	[2]	14,814,000		14,814,000
Thereafter	[2]	32,250,000		32,250,000
Future minimum annual lease and service payments	[2]	$ 99,976,000		$ 99,976,000

[1] Equipment Leases include the Company's commitments relating to operating and capital leases. See Note 13 for further information on the capital lease minimum payments which are included in the table.

[2] The Company has entered into various agreements to sublease certain of its premises. The Company recorded sublease income related to these leases of $0.4 million and $0.5 million for the three months ended September 30, 2016 and 2015 and $1.7 million and $1.4 million and for the nine months ended September 30, 2016 and 2015, respectively.

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Convertible Debt and Notes Payable (Details)			3 Months Ended		9 Months Ended		40 Months Ended
		Oct. 10, 2014 USD ($)	Sep. 30, 2016 USD ($) letters_of_credit	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) letters_of_credit	Sep. 30, 2015 USD ($)	Jan. 31, 2014 USD ($)	Sep. 29, 2016 USD ($)	Jan. 31, 2016	Dec. 31, 2015 USD ($)	Mar. 10, 2014 USD ($) $ / shares
Debt and Capital Lease Obligations [Line Items]
Interest Expense, Lessee, Assets under Capital Lease			$ 100,000	$ 100,000
Components of short-term borrowings and other debt
Convertible debt	[1]		128,065,000		$ 128,065,000					$ 122,401,000
Note payable			61,145,000		61,145,000					60,831,000
Other Notes Payable			15,166,000		15,166,000					0
Revolver			0		0					5,000,000
Capital lease obligations			2,046,000		2,046,000					2,734,000
Debt, Long-term and Short-term, Combined Amount			206,422,000		206,422,000					190,966,000
Amortization of debt discount					5,107,000	$ 4,674,000
Capital Lease Obligations Incurred							$ 7,600,000
Capital Leases, Income Statement, Interest Expense			100,000	100,000	100,000	100,000
Future minimum lease payments for capital lease obligations
2016			235,000		235,000
2017			938,000		938,000
2018			938,000		938,000
2019			78,000		78,000
2020			0		0
Thereafter			0		0
Subtotal			2,189,000		2,189,000
Less: Amount representing interest	[2]		(143,000)		(143,000)
Capital lease obligations			$ 2,046,000		$ 2,046,000					2,734,000
Number of Letters of Credit | letters_of_credit			9		9
Restricted Cash and Cash Equivalents			$ 13,783,000		$ 13,783,000					10,085,000
Revolving Credit Facility
Components of short-term borrowings and other debt
Letter of credit, max borrowing capacity			25,000,000		$ 25,000,000			$ 25,000,000
Line of Credit Facility, Current Borrowing Capacity								$ 15,000,000
Line of Credit Facility, Commitment Fee Percentage					3.00%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage					0.38%
Interest Expense, Debt			$ 100,000	200,000	$ 400,000	200,000
Minimum
Components of short-term borrowings and other debt
Capital Lease Obligation, Initial Term					48 months
Capital leases, interest rate			0.60%		0.60%
Maximum
Components of short-term borrowings and other debt
Capital Lease Obligation, Initial Term					60 months
Capital leases, interest rate			6.03%		6.03%
Cash Convertible Note Economic Hedge And Warrant Transaction
Components of short-term borrowings and other debt
Cash convertible note hedge transaction						20,500,000
Treasury Stock
Components of short-term borrowings and other debt
Cash convertible note hedge transaction						300,000
Letter of Credit, NY Office 1, Expires May 2017 | Letter of Credit
Components of short-term borrowings and other debt
Letter of credit, max borrowing capacity			$ 355,000		$ 355,000
Letter of Credit, NY Office 2, Expires May 2017 | Letter of Credit
Components of short-term borrowings and other debt
Letter of credit, max borrowing capacity			70,000		70,000
Letter of Credit, NY Office 3, Expires October 2016 | Letter of Credit
Components of short-term borrowings and other debt
Letter of credit, max borrowing capacity			695,000		695,000
Letter of Credit, NY Office 4, Expires October 2016 | Letter of Credit
Components of short-term borrowings and other debt
Letter of credit, max borrowing capacity			3,373,000		3,373,000
Letter of Credit, NY Office 5, Expires November 2016 | Letter of Credit
Components of short-term borrowings and other debt
Letter of credit, max borrowing capacity			1,600,000		1,600,000
Letter of Credit, San Francisco Office, Expires January 2017 | Letter of Credit
Components of short-term borrowings and other debt
Letter of credit, max borrowing capacity			710,000		710,000
Letter of Credit, Connecticut Office, Expires January 2017 | Letter of Credit
Components of short-term borrowings and other debt
Letter of credit, max borrowing capacity			65,000		65,000
Letter of Credit, NY Office, Expires February 2017 | Letter of Credit
Components of short-term borrowings and other debt
Letter of credit, max borrowing capacity			1,000,000		1,000,000
Letter of Credit, Boston Office, Expires March 2017 | Letter of Credit
Components of short-term borrowings and other debt
Letter of credit, max borrowing capacity			382,000		382,000
Convertible Debt
Components of short-term borrowings and other debt
Note payable											$ 149,500,000
Interest rate											3.00%
Principal amount of notes being converted											$ 1,000
Interest on Convertible Debt, Net of Tax			1,100,000	1,100,000	3,400,000	3,400,000
Debt Instrument, Convertible, Conversion Price | $ / shares											$ 5.33
Convertible debt, unamortized discount			19,600,000		19,600,000					$ 24,700,000	$ 35,700,000
Amortization of debt discount			1,700,000	1,600,000	5,100,000	4,700,000
Debt Instrument, Interest Rate, Effective Percentage											8.89%
Debt Issuance Cost					3,700,000
Repayments on long-term and short-term borrowings
2016			0		0
2017			4,485,000		4,485,000
2018			4,485,000		4,485,000
2019			151,743,000		151,743,000
2020			0		0
Thereafter			0		0
Subtotal			160,713,000		160,713,000
Less: Amount representing interest	[2]		(32,648,000)		(32,648,000)
Senior Notes
Components of short-term borrowings and other debt
Notes Payable			61,145,000		61,145,000
Note payable		$ 63,300,000
Interest rate		8.25%
Interest on Convertible Debt, Net of Tax			1,300,000	$ 1,300,000	3,900,000	$ 3,900,000
Debt Issuance Cost		$ 2,900,000
Repayments on long-term and short-term borrowings
2016			1,304,000		1,304,000
2017			5,218,000		5,218,000
2018			5,218,000		5,218,000
2019			5,218,000		5,218,000
2020			5,218,000		5,218,000
Thereafter			68,468,000		68,468,000
Subtotal			90,644,000		90,644,000
Less: Amount representing interest	[2]		(29,499,000)		(29,499,000)
Insurance Note
Components of short-term borrowings and other debt
Other Notes Payable			400,000		400,000
Interest rate									1.38%
Debt Instrument, Periodic Payment, Principal					200,000
Short-term Debt, Maximum Amount Outstanding During Period					2,000,000
Repayments on long-term and short-term borrowings
2016			1,221,000		1,221,000
2017			4,225,000		4,225,000
2018			2,225,000		2,225,000
2019			3,702,000		3,702,000
2020			1,805,000		1,805,000
Thereafter			4,723,000		4,723,000
Subtotal			17,901,000		17,901,000
Less: Amount representing interest	[2]		(2,735,000)		(2,735,000)
Aircraft
Components of short-term borrowings and other debt
Other Notes Payable			14,800,000		14,800,000
Interest Expense, Debt			200,000		500,000
Aircraft | Minimum
Components of short-term borrowings and other debt
Interest rate									4.80%
Aircraft | Maximum
Components of short-term borrowings and other debt
Interest rate									7.25%
Letter of Credit Reinsurance Agreement | Letter of Credit
Components of short-term borrowings and other debt
Letter of credit, max borrowing capacity			$ 5,500,000		$ 5,500,000
Common Stock Class A
Components of short-term borrowings and other debt
Class of Warrant, Exercise Price of Warrants or Rights | $ / shares											$ 7.18

[1] The carrying amount of the convertible debt includes an unamortized discount of $19.6 million and $24.7 million as of September 30, 2016 and December 31, 2015.

[2] Amount necessary to reduce net minimum payments to present value calculated at the Company's implicit rate at inception. This amount also includes the unamortized discount on the convertible debt.

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Stockholder's Equity - Quarterly (Details) - USD ($) $ / shares in Units, $ in Thousands		9 Months Ended
	May 19, 2015	Sep. 30, 2016	Sep. 30, 2015
Equity, Class of Stock [Line Items]
Proceeds from Issuance of Preferred Stock, net of issuance costs		$ 0	$ 117,194
Convertible Preferred Stock, Shares Issued upon Conversion	152.2476
Convertible Preferred Stock, Threshold Percentage of Stock Price Trigger		150.00%
Treasury Stock, Shares [Roll Forward]
Treasury stock, shares, beginning of period		34,515,734
Purchase of treasury stock, shares		1,723,119
Treasury stock, shares, end of period		38,817,672
Treasury stock, cost, beginning of period		$ 137,356
Shares purchased for minimum tax withholding under the Equity Plan or other similar transactions		8,793	8,556
Purchase of treasury stock, cost		6,014
Treasury stock, cost, end of period		$ 152,163
Treasury stock, average cost per share, beginning of period, in dollars per share		$ 3.98
Purchase of treasury stock, average cost per share, in dollars per share		3.49
Treasury stock, average cost per share, end of period, in dollars per share		$ 3.92
Treasury Stock
Treasury Stock, Shares [Roll Forward]
Shares purchased for minimum tax withholding under the Equity Plan or other similar transactions		2,578,819
Shares purchased for minimum tax withholding under the Equity Plan or other similar transactions		$ 8,793
Shares purchased for minimum tax withholding under the Equity Plan or other similar transactions, Average Cost Per Share		$ 3.41
Call Option
Equity, Class of Stock [Line Items]
Option indexed to Issuer's Equity, Value	$ 15,900
Minimum
Equity, Class of Stock [Line Items]
Convertible Preferred Stock, Threshold Consecutive Trading Days		20 days
Minimum | Call Option
Equity, Class of Stock [Line Items]
Option Indexed to Issuer's Equity, Strike Price		$ 6.57
Maximum
Equity, Class of Stock [Line Items]
Convertible Preferred Stock, Threshold Consecutive Trading Days		30 days
Maximum | Call Option
Equity, Class of Stock [Line Items]
Option Indexed to Issuer's Equity, Strike Price		$ 8.39
Convertible Preferred Stock
Equity, Class of Stock [Line Items]
Preferred stock issuance, net of issuance costs	120,750
Proceeds from Issuance of Preferred Stock, net of issuance costs			117,200
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs		$ 3,600
Preferred Stock, Dividend Rate, Percentage		5.625%
Preferred Stock, Liquidation Preference Per Share	$ 1,000
Convertible Preferred Stock | Retained Earnings [Member]
Equity, Class of Stock [Line Items]
Dividends		$ 5,094	$ 2,358

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Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Accumulated Other Comprehensive Income / (Loss) [Abstract]
Beginning Balance	$ 0	$ 17
Foreign currency translation	(3)	(4)
Ending Balance	$ (3)	$ 13

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Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	Dec. 31, 2014
Computation of earnings per share:
Net income (loss)	$ 15,259	$ (6,002)	$ (19,897)	$ 24,048
Net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	18,478	4,344	(2,524)	10,980
Net income (loss) attributable to Cowen Group, Inc.	(3,219)	(10,346)	(17,373)	13,068
Preferred stock dividends	1,698	1,603	5,094	2,358
Net income (loss) attributable to Cowen Group, Inc. common stockholders	$ (4,917)	$ (11,949)	$ (22,467)	$ 10,710
Shares for basic and diluted calculations:
Weighted average shares used in basic computation, shares	107,974,000	109,191,000	107,272,000	111,050,000
Weighted average shares used in diluted computation, shares	107,974,000	109,191,000	107,272,000	117,249,000
Earnings (loss) per share:
Earnings Per Share, Basic (in dollars per share)	$ (0.05)	$ (0.11)	$ (0.21)	$ 0.10
Earnings Per Share, Diluted (in dollars per share)	$ (0.05)	$ (0.11)	$ (0.21)	$ 0.09
Stock Options
Shares for basic and diluted calculations:
Shares attributable to share-based payment awards, shares	0	0	0	19,000
Performance based restricted stock
Shares for basic and diluted calculations:
Shares attributable to share-based payment awards, shares	0	0	0	266,000
Stock Appreciation Rights
Shares for basic and diluted calculations:
Shares attributable to share-based payment awards, shares	0	0	0	152,000
Restricted Stock
Shares for basic and diluted calculations:
Shares attributable to share-based payment awards, shares	0	0	0	5,762,000
Common Stock Class A
Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]
Common stock, shares outstanding, shares	107,314,157	107,098,068	107,314,157	107,098,068	105,604,658	111,691,199.000
Common stock, restricted shares, shares	648,704		648,704		497,570

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Segment Reporting (Details)		3 Months Ended			9 Months Ended
		Sep. 30, 2016 USD ($)		Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) segment customer		Sep. 30, 2015 USD ($)
Segment Reporting Information [Line Items]
Entity-Wide Revenue, Major Customer, Number | customer					0
Number of Operating Segments | segment					2
Revenues
Investment banking		$ 36,722,000		$ 53,012,000	$ 98,156,000		$ 186,763,000
Brokerage		49,605,000		41,085,000	147,640,000		111,496,000
Management fees		10,272,000		10,519,000	31,951,000		31,169,000
Incentive income		1,284,000		93,000	2,823,000		365,000
Investment Income		0		0	0		0
Interest and dividends		3,906,000		3,604,000	11,664,000		9,846,000
Aircraft lease revenue		1,089,000		0	3,071,000		0
Reimbursement from affiliates		2,140,000		3,355,000	8,268,000		10,499,000
Other revenue		25,112,000		1,312,000	41,183,000		2,684,000
Total revenues		131,027,000		113,254,000	349,297,000		353,956,000
Expenses
Non-interest expense		148,178,000		92,966,000	363,630,000		335,902,000
Interest and dividends		7,612,000		7,367,000	21,866,000		19,241,000
Total expenses		158,259,000		100,967,000	391,924,000		356,769,000
Other income (loss)
Total other income (loss)		51,250,000		(23,370,000)	16,177,000		32,073,000
Income tax expense (benefit)		8,759,000		(5,081,000)	(6,553,000)		5,212,000
(Income) loss attributable to redeemable non-controlling interests in consolidated subsidiaries and funds		(18,478,000)		(4,344,000)	2,524,000		(10,980,000)
Economic Income (Loss) / Net income (loss) attributable to Cowen Group, Inc.		(3,219,000)		(10,346,000)	(17,373,000)		13,068,000
Consolidated Funds
Revenues
Total revenues		897,000		274,000	4,541,000		1,134,000
Expenses
Total expenses		2,469,000		634,000	6,428,000		1,626,000
Operating Segments
Revenues
Investment banking		36,722,000		53,012,000	98,156,000		186,763,000
Brokerage		51,524,000		41,875,000	153,417,000		112,333,000
Management fees		16,539,000		18,021,000	49,938,000		51,167,000
Incentive income		11,825,000		(8,629,000)	19,174,000		(1,081,000)
Investment Income		19,730,000		(22,024,000)	(591,000)		19,072,000
Interest and dividends		0		0	0		0
Aircraft lease revenue		0			0
Reimbursement from affiliates		0		0	0		0
Other revenue		17,170,000		564,000	19,450,000		689,000
Total revenues		153,510,000		82,819,000	339,544,000		368,943,000
Expenses
Non-interest expense		135,848,000		90,854,000	335,889,000		331,103,000
Interest and dividends		4,284,000		4,257,000	12,933,000		12,425,000
Total expenses		140,132,000		95,111,000	348,822,000		343,528,000
Other income (loss)
Total other income (loss)		0		0	0		0
Income tax expense (benefit)		0		0	0		0
(Income) loss attributable to redeemable non-controlling interests in consolidated subsidiaries and funds		(2,354,000)		(2,231,000)	(6,589,000)		(6,128,000)
Economic Income (Loss) / Net income (loss) attributable to Cowen Group, Inc.		11,024,000		(14,523,000)	(15,867,000)		19,287,000
Operating Segments | Consolidated Funds
Revenues
Total revenues		0		0	0		0
Expenses
Total expenses		0		0	0		0
Operating Segments | Alternative Investment
Revenues
Investment banking		0		0	0		0
Brokerage		0		18,000	0		41,000
Management fees		15,746,000		17,739,000	47,604,000		50,885,000
Incentive income		11,825,000		(8,629,000)	19,174,000		(1,081,000)
Investment Income		14,798,000		(16,781,000)	(444,000)		14,309,000
Interest and dividends		0		0	0		0
Aircraft lease revenue		0			0
Reimbursement from affiliates		0		0	0		0
Other revenue		17,145,000		(9,000)	19,366,000		84,000
Total revenues		59,514,000		(7,662,000)	85,700,000		64,238,000
Expenses
Non-interest expense		43,589,000		6,133,000	77,917,000		57,164,000
Interest and dividends		3,205,000		2,970,000	9,645,000		8,880,000
Total expenses		46,794,000		9,103,000	87,562,000		66,044,000
Other income (loss)
Total other income (loss)		0		0	0		0
Income tax expense (benefit)		0		0	0		0
(Income) loss attributable to redeemable non-controlling interests in consolidated subsidiaries and funds		(2,354,000)		(2,231,000)	(6,589,000)		(6,128,000)
Economic Income (Loss) / Net income (loss) attributable to Cowen Group, Inc.		10,366,000		(18,996,000)	(8,451,000)		(7,934,000)
Operating Segments | Alternative Investment | Consolidated Funds
Revenues
Total revenues		0		0	0		0
Expenses
Total expenses		0		0	0		0
Operating Segments | Broker-Dealer
Revenues
Investment banking		36,722,000		53,012,000	98,156,000		186,763,000
Brokerage		51,524,000		41,857,000	153,417,000		112,292,000
Management fees		793,000		282,000	2,334,000		282,000
Incentive income		0		0	0		0
Investment Income		4,932,000		(5,243,000)	(147,000)		4,763,000
Interest and dividends		0		0	0		0
Aircraft lease revenue		0			0
Reimbursement from affiliates		0		0	0		0
Other revenue		25,000		573,000	84,000		605,000
Total revenues		93,996,000		90,481,000	253,844,000		304,705,000
Expenses
Non-interest expense		92,259,000		84,721,000	257,972,000		273,939,000
Interest and dividends		1,079,000		1,287,000	3,288,000		3,545,000
Total expenses		93,338,000		86,008,000	261,260,000		277,484,000
Other income (loss)
Total other income (loss)		0		0	0		0
Income tax expense (benefit)		0		0	0		0
(Income) loss attributable to redeemable non-controlling interests in consolidated subsidiaries and funds		0		0	0		0
Economic Income (Loss) / Net income (loss) attributable to Cowen Group, Inc.		658,000		4,473,000	(7,416,000)		27,221,000
Operating Segments | Broker-Dealer | Consolidated Funds
Revenues
Total revenues		0		0	0		0
Expenses
Total expenses		0		0	0		0
Adjustments | Funds Consolidation
Revenues
Investment banking		0		0	0		0
Brokerage		0		0	0		0
Management fees		(445,000)		(371,000)	(1,239,000)		(937,000)
Incentive income		(562,000)		29,000	(569,000)		(278,000)
Investment Income		0		0	0		0
Interest and dividends		0		0	0		0
Aircraft lease revenue		0			0
Reimbursement from affiliates		(76,000)		(85,000)	(224,000)		(261,000)
Other revenue		0		0	0		0
Total revenues		(186,000)		(153,000)	2,509,000		(342,000)
Expenses
Non-interest expense		(429,000)		0	(429,000)		0
Interest and dividends		0		0	0		0
Total expenses		2,040,000		634,000	5,999,000		1,626,000
Other income (loss)
Total other income (loss)		19,269,000		554,000	(1,915,000)		4,278,000
Income tax expense (benefit)		0		0	0		0
(Income) loss attributable to redeemable non-controlling interests in consolidated subsidiaries and funds		(17,043,000)		233,000	5,405,000		(2,310,000)
Economic Income (Loss) / Net income (loss) attributable to Cowen Group, Inc.		0		0	0		0
Adjustments | Funds Consolidation | Consolidated Funds
Revenues
Total revenues		897,000		274,000	4,541,000		1,134,000
Expenses
Total expenses		2,469,000		634,000	6,428,000		1,626,000
Adjustments | Other Adjustments
Revenues
Investment banking		0		0	0		0
Brokerage		(1,919,000)		(790,000)	(5,777,000)		(837,000)
Management fees	[1]	(5,822,000)		(7,131,000)	(16,748,000)		(19,061,000)
Incentive income	[1]	(9,979,000)		8,693,000	(15,782,000)		1,724,000
Investment Income	[2]	(19,730,000)		22,024,000	591,000		(19,072,000)
Interest and dividends	[2]	3,906,000		3,604,000	11,664,000		9,846,000
Aircraft lease revenue	[3]	1,089,000			3,071,000
Reimbursement from affiliates	[4]	2,216,000		3,440,000	8,492,000		10,760,000
Other revenue	[2]	7,942,000	[3]	748,000	21,733,000	[3]	1,995,000
Total revenues		(22,297,000)		30,588,000	7,244,000		(14,645,000)
Expenses
Non-interest expense	[2],[5],[6]	12,759,000		2,112,000	28,170,000		4,799,000
Interest and dividends	[2]	3,328,000		3,110,000	8,933,000		6,816,000
Total expenses		16,087,000		5,222,000	37,103,000		11,615,000
Other income (loss)
Total other income (loss)	[2]	31,981,000		(23,924,000)	18,092,000		27,795,000
Income tax expense (benefit)	[5]	8,759,000		(5,081,000)	(6,553,000)		5,212,000
(Income) loss attributable to redeemable non-controlling interests in consolidated subsidiaries and funds		919,000		(2,346,000)	3,708,000		(2,542,000)
Economic Income (Loss) / Net income (loss) attributable to Cowen Group, Inc.		(14,243,000)		4,177,000	(1,506,000)		(6,219,000)
Adjustments | Other Adjustments | Consolidated Funds
Revenues
Total revenues		0		0	0		0
Expenses
Total expenses		$ 0		$ 0	$ 0		$ 0

[1] Economic Income (Loss) recognizes revenues (i) net of distribution fees paid to agents and (ii) our proportionate share of management and incentive fees of certain real estate operating entities and the activist business.

[2] Economic Income (Loss) recognizes Company income from proprietary trading (including interest and dividends) and underwriting income from the Company's insurance related activities net of expenses.

[3] Aircraft lease revenue is shown net of expenses in other revenue for Economic Income (Loss).

[4] Reimbursement from affiliates is shown as a reduction of Economic Income expenses, but is included as a part of revenues under US GAAP.

[5] Economic Income (Loss) excludes income taxes and acquisition related adjustments as management does not consider these items when evaluating the performance of the segment.

[6] Economic Income (Loss) recognizes the Company's proportionate share of expenses for certain real estate and other operating entities for which the investments are recorded under the equity method of accounting for investments.

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Regulatory Requirements (Details)	Sep. 30, 2016 USD ($)
Cowen and Company
Regulatory Requirements for Broker-Dealers [Line Items]
Net capital requirement under alternative method	$ 1,000,000
Net capital	78,300,000
Excess capital	77,300,000
Cowen Prime
Regulatory Requirements for Broker-Dealers [Line Items]
Minimum net capital required	250,000
Net capital	11,700,000
Excess capital	11,400,000
RCG Insurance Company
Regulatory Requirements for Broker-Dealers [Line Items]
Minimum net capital required	300,000.0
Net capital	22,100,000
ATM Execution LLC [Member]
Regulatory Requirements for Broker-Dealers [Line Items]
Minimum net capital required	250,000
Net capital	2,700,000
Excess capital	2,400,000
U.K. Financial Services Authority | Ramius U.K., Ltd.
Regulatory Requirements for Broker-Dealers [Line Items]
Financial resources	240,000
Financial resources requirement	60,000
Excess financial resources	180,000
U.K. Financial Services Authority | Cowen International Limited
Regulatory Requirements for Broker-Dealers [Line Items]
Financial resources	3,900,000
Financial resources requirement	1,900,000
Excess financial resources	$ 2,000,000

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Related Party Transactions (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Related Party Transaction [Line Items]
Due from related parties	$ 32,539	$ 39,659		$ 32,539		$ 39,659
Fees receivable, net of allowance	45,787	34,413		45,787		34,413
Reimbursable to affiliated funds	100			100
Redeemable non-controlling interests, Related Party	331,883	186,911		331,883		186,911
Net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	(18,478)		$ (4,344)	2,524	$ (10,980)
Employees
Related Party Transaction [Line Items]
Redeemable non-controlling interests, Related Party	27,700	21,300		27,700		21,300
Net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	(2,900)		(5,500)	$ (4,200)	(10,300)
Employee Loans | Minimum
Related Party Transaction [Line Items]
Forgivable Loans, Vesting Period				1 year
Employee Loans | Maximum
Related Party Transaction [Line Items]
Forgivable Loans, Vesting Period				3 years
Affiliated Entity
Related Party Transaction [Line Items]
Fees receivable, net of allowance	5,900	6,300		$ 5,900		6,300
Affiliated Entity | Fees Payable
Related Party Transaction [Line Items]
Fees payable to related parties	100	100		100		100
Employees
Related Party Transaction [Line Items]
Due from employees	7,900	5,500		7,900		5,500
Forgivable Loan Balances	2,100	1,200		2,100		1,200
Amortization on Forgivable Loans	200		$ 600	900	$ 2,600
Investor
Related Party Transaction [Line Items]
Due to Affiliate	300	300		300		300
Other Funds
Related Party Transaction [Line Items]
Due from related parties	11,700	19,700		11,700		$ 19,700
Starboard Value LP | Equity Method Investments
Related Party Transaction [Line Items]
Interest Income, Related Party	$ 200			$ 500
Equity Method Investment, Realized Gain (Loss) on Disposal		$ 12,900
Effective interest rate						5.00%