10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2017

OR

☐ 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: 001-34774

Cboe Global Markets, Inc.

(Exact Name of Registrant as Specified in Its Charter)

Delaware	20-5446972
(State or Other Jurisdiction of	(I.R.S. Employer
Incorporation or Organization)	Identification No.)

400 South LaSalle Street Chicago, Illinois	60605
(Address of Principal Executive Offices)	(Zip Code)

(312) 786-5600

(Registrant's telephone number, including area code)

CBOE Holdings, Inc.

(Former name, former address and former fiscal year, if changed since last report)

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   ☒     No   ☐

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   ☒     No   ☐

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

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    

Yes   ☐     No   ☒

Indicate the number of shares outstanding of each of the registrant’s classes of common stock, as of the latest practicable date:

Class	October 31, 2017
Common Stock, par value $0.01	113,457,824 shares

TABLE OF CONTENTS

		Page
PART I. FINANCIAL INFORMATION
Item 1.	Financial Statements (unaudited)	1
	Condensed Consolidated Balance Sheets—As of September 30, 2017 and December 31, 2016	1
	Condensed Consolidated Statements of Income—Three and Nine Months Ended September 30, 2017 and 2016	2
	Condensed Consolidated Statements of Comprehensive Income – Three and Nine Months Ended September 30, 2017 and 2016	3
	Condensed Consolidated Statement of Changes in Stockholders’ Equity—Nine Months Ended September 30, 2017	4
	Condensed Consolidated Statements of Cash Flows—Nine Months Ended September 30, 2017 and 2016	5
	Notes to Condensed Consolidated Financial Statements	6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	34
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	52
Item 4.	Controls and Procedures	53
PART II. OTHER INFORMATION
Item 1.	Legal Proceedings	55
Item 1A.	Risk Factors	55
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	55
Item 3.	Defaults upon Senior Securities	55
Item 4.	Mine Safety Disclosures	55
Item 5.	Other Information	55
Item 6.	Exhibits	55
SIGNATURES		56

CERTAIN DEFINED TERMS

Throughout this document, unless otherwise specified or the context so requires:

• "Cboe," "we," "us," "our" or "the Company" refers to Cboe Global Markets, Inc. and its subsidiaries.

• “Bats Global Markets” and “Bats” refer to our wholly-owned subsidiary Bats Global Markets, Inc., now known as Cboe Bats, LLC, and its subsidiaries.

• “BYX” refers to Cboe BYX Exchange, Inc., a wholly-owned subsidiary of Cboe Global Markets, Inc.

• “BZX” refers to Cboe BZX Exchange, Inc., a wholly-owned subsidiary of Cboe Global Markets, Inc.

• "C2" refers to Cboe C2 Exchange, Inc. a wholly-owned subsidiary of Cboe Global Markets, Inc.

• “Cboe Chi-X Europe” refers to our broker-dealer entity, Cboe Chi-X Europe Limited, a wholly-owned subsidiary of Cboe Global Markets, Inc.,operated in the United Kingdom.

• “Cboe Europe Equities” refers to Cboe Europe Limited, a wholly-owned subsidiary of Cboe Global Markets, Inc., the U.K. operator of our Multilateral Trading Facility ("MTF"), and our Regulated Market ("RM"), under its Recognized Investment Exchange ("RIE") status.

• "Cboe FX" refers to our foreign currency electronic communications network that is a wholly-owned subsidiary of Cboe Global Markets, Inc. Cboe FX operates in the United States and has an additional matching engine in the United Kingdom.

• "Cboe Options" refers to Cboe Exchange, Inc., a wholly-owned subsidiary of Cboe Global Markets, Inc.

• "Cboe SEF" refers to Cboe SEF, LLC, our swap execution facility that is a wholly-owned subsidiary of Cboe Global Markets, Inc.

• "CFE" refers to Cboe Futures Exchange, LLC, a wholly-owned subsidiary of Cboe Global Markets, Inc.

• "CFTC" refers to the U.S. Commodity Futures Trading Commission.

• “EDGA” refers to Cboe EDGA Exchange, Inc., a wholly-owned subsidiary of Cboe Global Markets, Inc.

• “EDGX” refers to Cboe EDGX Exchange, Inc., a wholly-owned subsidiary of Cboe Global Markets, Inc.

• "Exchanges" refers to Cboe Options, C2, BZX, BYX, EDGX, and EDGA.

• "FASB" refers to the Financial Accounting Standards Board.

• "FCA" refers to the U.K. Financial Conduct Authority.

• "GAAP" refers to Generally Accepted Accounting Principles in the United States.

• "Merger" refers to our acquisition of Bats Global Markets, completed on February 28, 2017.

• "OCC" refers to The Options Clearing Corporation, which is the issuer and registered clearing agency for all U.S. exchange-listed options and is the designated clearing organization for futures traded on CFE.

• "SEC" refers to the U.S. Securities and Exchange Commission.

• "SPX" refers to our S&P 500 Index exchange-traded options products.

• “Trading” refers to our broker-dealer entity, Cboe Trading, Inc., a wholly-owned subsidiary of Cboe Global Markets, Inc., operated in the United States.

• "VIX" refers to the Cboe Volatility Index methodology.

TRADEMARK AND OTHER INFORMATION

Cboe®, CFE®, Bats®, BZX®, BYX®, EDGX®, EDGA®, Cboe Volatility Index® and VIX® are registered trademarks and Cboe Global Markets^SM, C2^SM, SPX^SM, and Cboe Futures Exchange^SM are service marks of Cboe Global Markets, Inc. and its subsidiaries.  Standard & Poor's®, S&P®, S&P 100® and S&P 500® are registered trademarks of Standard & Poor's Financial Services LLC and have been licensed for use by Cboe Exchange, Inc. Dow Jones®, Dow Jones Industrial Average®, DJIA® and Dow Jones Indexes are registered trademarks or service marks of Dow Jones Trademark Holdings, LLC, used under license.  MSCI, and the MSCI index names are service marks of MSCI Inc., used under license. Russell® and the Russell index names are registered trademarks of Frank Russell Company, used under license. FTSE® and the FTSE indexes are trademarks and service marks of FTSE International Limited, used under license. All other trademarks and service marks are the property of their respective owners.

This Quarterly Report on Form 10-Q includes market share and industry data that we obtained from industry publications and surveys, reports of governmental agencies and internal company surveys. Industry publications and surveys generally state that the information they contain has been obtained from sources believed to be reliable, but we cannot assure you that this information is accurate or complete. We have not independently verified any of the data from third-party sources nor have we ascertained the underlying economic assumptions relied upon therein. Statements as to our market position are based on the most currently available market data.  While we are not aware of any misstatements regarding industry data presented herein, our estimates involve risks and uncertainties and are subject to change based on various factors. We refer you to the “Risk Factors” in Part II, Item 1A of this Quarterly Report on Form 10-Q and our other filings with the SEC. 

FORWARD-LOOKING STATEMENTS

This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that involve a number of risks and uncertainties. You can identify these statements by forward-looking words such as "may," "might," "should," "expect," "plan," "anticipate," "believe," "estimate," "predict," "potential" or "continue," and the negative of these terms and other comparable terminology. All statements that reflect our expectations, assumptions or projections about the future other than statements of historical fact are forward-looking statements, including statements in the "Management's Discussion and Analysis of Financial Condition and Results of Operations" section of this report. These forward-looking statements, which are subject to known and unknown risks, uncertainties and assumptions about us, may include projections of our future financial performance based on our growth strategies and anticipated trends in our business. These statements are only predictions 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 that expressed or implied by the forward-looking statements. In particular, you should consider the risks and uncertainties described under “Risk Factors” in Part II, Item 1A of this Quarterly Report on Form 10-Q and our other filings with the SEC.

While we believe we have identified the risks that are material to us, these risks and uncertainties are not exhaustive. Moreover, we operate in a very competitive and rapidly changing environment. New risks and uncertainties emerge from time to time, and it is not possible to predict all risks and uncertainties, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements.

Some factors that could cause actual results to differ include:

• the loss of our right to exclusively list and trade certain index options and futures products;

• economic, political and market conditions;

• compliance with legal and regulatory obligations;

• price competition and consolidation in our industry;

• decreases in trading volumes, market data fees or a shift in the mix of products traded on our exchanges;

• legislative or regulatory changes;

• increasing competition by foreign and domestic entities;

• our dependence on and exposure to risk from third parties;

• our index providers' ability to maintain the quality and integrity of their indexes and to perform under our agreements;

• our ability to operate our business without violating the intellectual property rights of others and the costs associated with protecting our intellectual property rights;

• our ability to attract and retain skilled management and other personnel, including those experienced with post-acquisition integration;

• our ability to accommodate trading volume and transaction traffic, including significant increases, without failure or degradation of performance of our systems;

• our ability to protect our systems and communication networks from security risks, including cyber-attacks and unauthorized disclosure of confidential information;

• challenges to our use of open source software code;

• our ability to meet our compliance obligations, including managing potential conflicts between our regulatory responsibilities and our for-profit status;

• damage to our reputation;

• the ability of our compliance and risk management methods to effectively monitor and manage our risks;

• our ability to manage our growth and strategic acquisitions or alliances effectively;

• unanticipated difficulties or expenditures relating to the Merger, including, without limitation, difficulties that result in the failure to realize expected synergies, accretion, efficiencies and cost savings from the Merger within the expected time period (if at all), whether in connection with integration, migrating trading platforms, broadening distribution of product offerings or otherwise;

• restrictions imposed by our debt obligations;

• our ability to maintain an investment grade credit rating;

• potential difficulties in our migration of trading platforms and our ability to retain employees as a result of the Merger; and

• the accuracy of our estimates and expectations.

For a detailed discussion of these and other factors that might affect our performance, see Part II, Item 1A of this Report. We do not undertake, and expressly disclaim, any duty to update any forward-looking statement whether as a result of new information, future events or otherwise, except as required by law. We caution you not to place undue reliance on the forward-looking statements, which speak only as of the date of this filing.

PART I—FINANCIAL INFORMATION

Item 1. Financial Statements.

Cboe Global Markets, Inc. and Subsidiaries

Condensed Consolidated Balance Sheets

(unaudited)

(in millions, except par value data, share and per share amounts)

	September 30, 2017			December 31, 2016
Assets
Current Assets:
Cash and cash equivalents	$	124.8		$	97.3
Financial investments	2.4			—
Accounts receivables, net	195.8			76.7
Income taxes receivable	35.2			53.7
Other current assets	16.1			7.4
Total Current Assets	374.3			235.1
Investments	83.2			72.9
Land	4.9			4.9
Property and equipment, net	77.2			55.9
Goodwill	2,696.3			26.5
Intangible assets, net	1,940.2			8.7
Other assets, net	52.0			72.7
Total Assets	$	5,228.1		$	476.7
Liabilities, Redeemable Noncontrolling Interests and Stockholders’ Equity
Current Liabilities:
Accounts payable and accrued liabilities	$	140.4		$	82.4
Section 31 fees payable	25.4			4.4
Deferred revenue	11.4			3.1
Income taxes payable	4.2			—
Contingent consideration liability	56.6			—
Total Current Liabilities	238.0			89.9
Long-term debt	1,312.4			—
Income tax liability	67.2			52.1
Deferred income taxes	715.7			—
Other non-current liabilities	7.5			4.2
Commitments and Contingencies
Redeemable Noncontrolling Interest	9.4			12.6
Stockholders’ Equity:
Preferred stock, $0.01 par value: 20,000,000 shares authorized, no shares issued and outstanding at September 30, 2017 and December 31, 2016	—			—
Common stock, $0.01 par value: 325,000,000 shares authorized, 125,332,691 and 113,457,824 shares issued and outstanding, respectively at September 30, 2017 and 92,950,065 and 81,285,307 shares issued and outstanding, respectively at December 31, 2016	1.2			0.9
Treasury stock, at cost: 11,874,867 shares at September 30, 2017 and 11,664,758 shares at December 31, 2016	(550.2		)	(532.2		)
Additional paid-in capital	2,610.0			139.2
Retained earnings	766.9			710.8
Accumulated other comprehensive income (loss), net	50.0			(0.8		)
Total Stockholders’ Equity	2,877.9			317.9
Total Liabilities, Redeemable Noncontrolling Interest and Stockholders’ Equity	$	5,228.1		$	476.7

See accompanying notes to condensed consolidated financial statements.

Cboe Global Markets, Inc. and Subsidiaries

Condensed Consolidated Statements of Income

(unaudited)

(in millions, except per share data)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Revenues:
Transaction fees	$	423.3		$	124.5		$	1,133.6		$	378.3
Access fees	30.1			13.0			77.6			39.4
Exchange services and other fees	20.0			11.4			55.3			34.2
Market data fees	46.8			8.3			117.3			24.5
Regulatory fees	83.5			9.1			205.1			27.4
Other revenue	7.7			2.4			19.5			8.5
Total Revenues	611.4			168.7			1,608.4			512.3
Cost of Revenues:
Liquidity payments	234.3			9.5			606.1			23.2
Routing and clearing	9.4			3.6			27.9			7.9
Section 31 fees	75.9			—			180.5			—
Royalty fees	22.1			19.4			63.9			57.8
Total Cost of Revenues	341.7			32.5			878.4			88.9
Revenues Less Cost of Revenues	269.7			136.2			730.0			423.4
Operating Expenses:
Compensation and benefits	50.4			28.3			148.2			83.9
Depreciation and amortization	55.4			10.2			136.3			34.4
Technology support services	11.4			5.6			30.9			17.0
Professional fees and outside services	17.6			12.7			48.9			41.0
Travel and promotional expenses	4.5			2.6			12.0			7.6
Facilities costs	2.9			1.3			7.7			4.2
Acquisition-related costs	5.5			8.6			75.4			8.6
Change in contingent consideration	0.4			—			1.1			—
Other expenses	2.3			1.1			6.3			3.4
Total Operating Expenses	150.4			70.4			466.8			200.1
Operating Income	119.3			65.8			263.2			223.3
Non-operating (Expenses) Income:
Interest expense, net	(10.5		)	(0.2		)	(30.9		)	(0.2		)
Other (expense) income	(2.9		)	1.8			(2.0		)	8.6
Income Before Income Tax Provision	105.9			67.4			230.3			231.7
Income tax provision	45.6			26.9			86.8			91.1
Net income	60.3			40.5			143.5			140.6
Net loss attributable to redeemable noncontrolling interest	0.2			0.3			0.8			0.8
Net Income Excluding Noncontrolling Interest	60.5			40.8			144.3			141.4
Change in redemption value of noncontrolling interest	(0.2		)	(0.3		)	(0.8		)	(0.8		)
Net income allocated to participating securities	(0.6		)	(0.2		)	(1.4		)	(0.6		)
Net Income Allocated to Common Stockholders	$	59.7		$	40.3		$	142.1		$	140.0
Net Income Per Share Allocated to Common Stockholders:
Basic earnings per share	$	0.53		$	0.50		$	1.35		$	1.72
Diluted earnings per share	0.53			0.50			1.34			1.72
Basic weighted average shares outstanding	112.3			81.3			105.5			81.5
Diluted weighted average shares outstanding	112.6			81.3			105.8			81.5

See accompanying notes to condensed consolidated financial statements.

2

Cboe Global Markets, Inc. and Subsidiaries

Condensed Consolidated Statements of Comprehensive Income

(unaudited)

(in millions)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Net Income	$	60.3		$	40.5		$	143.5		$	140.6
Foreign currency translation adjustments	20.5			—			50.7			—
Unrealized holding (losses) gains on available-for-sale investments	(0.1		)	—			0.1			—
Comprehensive Income	80.7			40.5			194.3			140.6
Comprehensive loss attributable to noncontrolling interest	0.2			0.3			0.8			0.8
Comprehensive Income Excluding Noncontrolling Interest	80.9			40.8			195.1			141.4
Change in redemption value of noncontrolling interest	(0.2		)	(0.3		)	(0.8		)	(0.8		)
Comprehensive income allocated to participating securities	(0.3		)	(0.2		)	(1.4		)	(0.6		)
Comprehensive Income Allocated to Common Stockholders	$	80.4		$	40.3		$	192.9		$	140.0

See accompanying notes to condensed consolidated financial statements.

3

Cboe Global Markets, Inc. and Subsidiaries

Condensed Consolidated Statement of Changes in Stockholders’ Equity

Nine months ended September 30, 2017

(unaudited)

(in millions, except per share amount)

	Preferred Stock		Common Stock		Treasury Stock			Additional Paid-In Capital		Retained Earnings			Accumulated Other Comprehensive (Loss) Income			Total Stockholders’ Equity			Redeemable Noncontrolling Interests
Balance at December 31, 2016	$	—	$	0.9	$	(532.2	)	$	139.2	$	710.8		$	(0.8	)	$	317.9		$	12.6
Issuance of stock for acquisition of Bats Global Markets, Inc.	—		0.3		—			2,424.4		—			—			2,424.7			—
Issuance of vested restricted stock granted to employees	—		—		(12.0		)	—		—			—			(12.0		)	—
Common stock issued from employee stock plans	—		—		(6.0		)	4.1		—			—			(1.9		)	—
Stock-based compensation	—		—		—			39.1		—			—			39.1			—
Net income excluding noncontrolling interest	—		—		—			—		144.3			—			144.3			—
Cash dividends on common stock of $0.77 per share	—		—		—			—		(87.4		)	—			(87.4		)	—
Purchase of additional equity interest from noncontrolling interest	—		—		—			3.2		—			—			3.2			(3.2		)
Other comprehensive income	—		—		—			—		—			50.8			50.8			—
Net loss attributable to redeemable noncontrolling interest	—		—		—			—		—			—			—			(0.8		)
Redemption value adjustment	—		—		—			—		(0.8		)	—			(0.8		)	0.8
Balance at September 30, 2017	$	—	$	1.2	$	(550.2	)	$	2,610.0	$	766.9		$	50.0		$	2,877.9		$	9.4

See accompanying notes to condensed consolidated financial statements.

4

Cboe Global Markets, Inc. and Subsidiaries

Condensed Consolidated Statements of Cash Flows

(unaudited)

(in millions) 

	Nine Months Ended September 30,
	2017			2016
Cash Flows from Operating Activities:
Net income	$	143.5		$	140.6
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	136.3			34.4
Amortization of debt issuance cost	3.1			—
Change in fair value of contingent consideration	1.1			—
Gain on settlement of contingent consideration	—			(1.4		)
Realized gain on available-for-sale securities	(0.4		)	—
Provision for uncollectable convertible notes receivable	3.8			—
Provision for deferred income taxes	(6.3		)	0.4
Stock-based compensation expense	39.1			10.9
Impairment of data processing software	14.9			—
Equity in investments	(0.3		)	(0.8		)
Excess tax benefit from stock-based compensation	7.1			—
Changes in assets and liabilities:
Accounts receivable	(2.1		)	(0.1		)
Income taxes receivable	24.1			(24.3		)
Trading financial investment	(1.9		)	—
Other prepaid expenses	(8.7		)	(3.4		)
Other current assets	—			0.4
Accounts payable and accrued liabilities	(1.1		)	8.2
Section 31 fees payable	(122.7		)	—
Deferred revenue	3.9			2.8
Income taxes payable	(50.2		)	(1.6		)
Income tax liability	(5.3		)	8.0
Other liabilities	1.0			—
Net Cash Flows provided by Operating Activities	178.9			174.1
Cash Flows from Investing Activities:
Acquisitions, net of cash acquired	(1,405.4		)	(14.3		)
Purchases of available-for-sale financial investments	(89.2		)	—
Proceeds from maturities of available-for-sale financial investments	155.1			—
Investments	(4.0		)	(24.6		)
Payment of contingent consideration from acquisition	—			(2.0		)
Purchases of property and equipment	(26.1		)	(36.4		)
Net Cash Flows used in Investing Activities	(1,369.6		)	(77.3		)
Cash Flows from Financing Activities:
Proceeds from long-term debt	1,944.2			—
Principal payments of long term debt	(625.0		)	—
Debt issuance costs	(1.3		)	(4.7		)
Dividends paid	(87.4		)	(58.1		)
Purchase of unrestricted stock from employees	(18.0		)	(4.1		)
Proceeds from exercise of stock-based compensation	1.8			—
Excess tax benefit from stock-based compensation	—			1.1
Purchase of common stock under announced program	—			(60.5		)
Net Cash Flows provided by (used in) Financing Activities	1,214.3			(126.3		)
Effect of Foreign Currency Exchange Rate Changes on Cash and Cash equivalents	3.9			—
Increase (Decrease) in Cash and Cash Equivalents	27.5			(29.5		)
Cash and Cash Equivalents:
Beginning of Period	97.3			102.3
End of Period	$	124.8		$	72.8
Supplemental disclosure of noncash transactions:
Forfeiture of common stock for payment of exercise of stock options	$	2.3		$	—
Supplemental disclosure of noncash investing activities:
Accounts receivable acquired	$	117.8		$	—
Financial investments	66.0			—
Property and equipment acquired	21.8			—
Goodwill acquired	2,651.0			—
Intangible assets acquired	2,000.0			—
Other assets acquired	32.8			—
Accounts payable and accrued expenses assumed	(59.9		)	—
Section 31 fees payable acquired	(143.6		)	—
Deferred tax liability acquired	(720.3		)	—
Other liabilities assumed	(135.5		)	—
Issuance of common stock related to acquisition	(2,424.7		)	—

See accompanying notes to condensed consolidated financial statements.

5

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

1.     ORGANIZATION AND BASIS OF PRESENTATION

Cboe Global Markets, Inc. is one of the world’s largest exchange holding companies, offering cutting-edge trading and investment solutions to investors around the world. The Company is committed to relentless innovation, connecting global markets with world-class technology, and providing seamless solutions that enhance the customer experience. 

Cboe offers trading across a diverse range of products in multiple asset classes and geographies, including options, futures, U.S. and European equities, exchange-traded products (ETPs), global foreign exchange (FX) and multi-asset volatility products based on the VIX, the world’s barometer for equity market volatility.

Cboe’s trading venues include the largest options exchange in the U.S. by volume and the largest stock exchange by value traded in Europe.  In addition, the Company is the second-largest stock exchange operator by volume in the U.S. and a leading market globally for ETP trading.

The Company is headquartered in Chicago with offices in Kansas City, New York, London, San Francisco, Singapore, Hong Kong, and Ecuador. 

In October 2017, the Company changed its legal name from CBOE Holdings, Inc. to Cboe Global Markets, Inc.  The amendment to effect the name change was filed and became effective with the State of Delaware on October 16, 2017.

Basis of Presentation

These interim unaudited condensed consolidated financial statements have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016.

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities, valuation of redeemable noncontrolling interests and reported amounts of revenues and expenses. On an ongoing basis, management evaluates its estimates based upon historical experience, observance of trends, information available from outside sources and various other assumptions that management believes to be reasonable under the circumstances. Actual results may differ from these estimates under different conditions or assumptions.

In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of financial position, results of operations and cash flows at the dates and for the periods presented have been included.

The results of operations for interim periods are not necessarily indicative of the results of operations for the full year.

For those consolidated subsidiaries in which the Company's ownership is less than 100% and for which the Company has control over the assets and liabilities and the management of the entity, the outside stockholders' interest are shown as non-controlling interests.

In 2017, the Company changed the presentation of liquidity payments to be a cost of revenues, which historically had been netted against transaction fees. The Company also changed the presentation of royalty fees to be a cost of revenues. The presentation of routing fees and costs were also changed. Routing fees were presented in transaction fees in total revenues and routing and clearing costs in total cost of revenues. These fees were previously presented as a net operating expense. These changes were made to conform to current presentation and the changes have been reflected in all periods presented.

Segment information

The Company previously operated as a single reportable business segment. As a result of the Bats acquisition on February 28, 2017 (Note 3), the Company is reporting five business segments: Options, U.S. Equities, Futures, European Equities, and

6

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

Global FX, which is reflective of how the Company's chief operating decision-maker reviews and operates the business (Note 15). This change has been reflected in all periods presented.

Recent Accounting Pronouncements - Adopted

In the first quarter of 2017, the Company adopted Accounting Standards Update (ASU) 2014-09, Revenue from Contracts with Customers (Topic 606). Under the ASU, revenue is recognized when a customer obtains control of promised goods or services in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services. In addition, the standard requires disclosure of the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The Company applied the five-step method outlined in the ASU to all revenue streams and elected the full retrospective implementation method. The additional disclosures required by the ASU have been included in Note 2.

In the first quarter of 2017, the Company adopted ASU 2016-09, Compensation — Stock Compensation. This ASU simplifies several aspects of the accounting for stock-based payment transactions, including the recognition of excess tax benefits and deficiencies, the classification of those excess tax benefits on the statement of cash flows, an accounting policy election for forfeitures, the amount an employer can withhold to cover income taxes and still qualify for equity classification and the classification of those taxes paid on the statement of cash flows. The Company has chosen to use the actual forfeiture rate and applied the prospective transition method for excess tax benefits and employees taxes paid. As of the adoption date,the Company did not have any awards classified as a liability under the previous guidance.

In the first quarter of 2017, the Company adopted ASU 2016-16, Accounting for Income Taxes:Intra-Entity Transfers of Assets other than Inventory. The ASU requires that the income tax impact of intra-entity sales and transfers of property, except for inventory, be recognized when the transfer occurs. The Company applied the full retrospective application which did not result in any impact to the financial statements.

Recent Accounting Pronouncements - Issued, not yet Adopted

In May 2017, the FASB issued ASU 2017-09, Compensation - Stock Compensation (Topic 718) that provides additional guidance around which changes to a share-based payment award requires an entity to apply modification accounting. Specifically, an entity is to account for the effects of a modification, unless all of the following are satisfied: (1) the fair value (or calculated value or intrinsic value, if such an alternative measurement method is used) of the modified award is the same as the fair value (or calculated value or intrinsic value, if such an alternative measurement method is used) of the original award immediately before the original award is modified; (2) the vesting conditions of the modified award are the same as the vesting conditions of the original award immediately before the original award is modified; and (3) the classification of the modified award as an equity instrument or as a liability instrument is the same as the classification of the original award immediately before the original award is modified. For public entities, the update is effective beginning after December 15, 2017. Early adoption is permitted. The Company is in the process of evaluating this guidance and assessing the impact the ASU could have on the consolidated financial statements.

In March 2017, the FASB issued ASU 2017-07, Compensation - Retirement Benefits (Topic 715). This ASU requires an employer to report the service cost component in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations. For public entities, the update is effective beginning after December 15, 2017. Early adoption is permitted. The Company is in the process of evaluating this guidance and assessing the impact the ASU could have on the consolidated financial statements.

In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805)-Clarifying the Definition of a Business. ASU No. 2017-01 clarifies the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. There are three elements of a business: inputs, processes, and outputs. While an integrated set of assets and activities (collectively, a “set”) that is a business usually has outputs, outputs are not required to be present. Additionally, all of the inputs and processes that a seller uses in operating a set are not required if market participants can acquire the set and continue to produce outputs. ASU No. 2017-01 provides a screen to determine when a set is not a business. The screen requires that when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set

7

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

is not a business. This screen reduces the number of transactions that need to be further evaluated. If, however, the screen is not met, then the amendments in this ASU (1) require that to be considered a business, a set must include, at a minimum, an input and a substantive process that together significantly contribute to the ability to create output and (2) remove the evaluation of whether a market participant could replace missing elements. Finally, the amendments in this ASU narrow the definition of the term “output” so that it is consistent with the manner in which outputs are described in Topic 606 - Revenue from Contracts with Customers. For public entities, the update is effective for annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2018. Early adoption is permitted under certain circumstances. The Company is in the process of evaluating this guidance and assessing the impact the ASU could have on the consolidated financial statements.

In January 2017, the FASB issued ASU 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This ASU simplifies the manner in which an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. Step 2 measures a goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount of that goodwill. In computing the implied fair value of goodwill under Step 2, an entity, prior to the amendments in ASU No. 2017-04, had to perform procedures to determine the fair value at the impairment testing date of its assets and liabilities, including unrecognized assets and liabilities, in accordance with the procedure that would be required in determining the fair value of assets acquired and liabilities assumed in a business combination. However, under this ASU, an entity should (1) perform its annual or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount, and (2) recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value, with the understanding that the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. Additionally, ASU No. 2017-04 removes the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails such qualitative test, to perform Step 2 of the goodwill impairment test. For public entities, the update is effective for annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company is in the process of evaluating this guidance and assessing the impact the ASU could have on the consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02, Leases. This update requires a lessee to recognize on the balance sheet a liability to make lease payments and a corresponding right-of-use asset. The guidance also requires certain qualitative and quantitative disclosures about the amount, timing and uncertainty of cash flows arising from leases. This update is effective for annual and interim periods beginning after December 15, 2018. Early adoption is permitted. The Company is in the process of evaluating this guidance and assessing the impact the ASU could have on the consolidated financial statements.

In September 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230) — Classification of Certain Cash Receipts and Cash Payments (a consensus of the FASB Emerging Issues Task Force). ASU No. 2016-15 addresses eight specific cash flow issues in an effort to reduce diversity in practice: (1) debt prepayment or debt extinguishment costs; (2) settlement of zero-coupon bonds; (3) contingent consideration payments made after a business combination; (4) proceeds from the settlement of insurance claims; (5) proceeds from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies; (6) distributions received from equity method investees; (7) beneficial interests in securitization transactions; and (8) separately identifiable cash flows and application of the predominance principle. The ASU is effective for the Company for fiscal years beginning after December 15, 2017, and for the interim periods within that fiscal year. Early adoption is permitted, including adoption during an interim period. The Company is in the process of evaluating this guidance and assessing the impact the ASU could have on the consolidated financial statements.

2. REVENUE RECOGNITION

As of January 1, 2017, the Company adopted ASU 2014-09 Revenue from Contracts with Customers - Topic 606 and all subsequent ASUs that modified ASC 606. The Company has elected to apply the ASU and all related ASUs retrospectively to each prior reporting period presented. The implementation of the guidance had no material impact on the measurement or recognition of revenue of prior periods, however, additional disclosures have been added in accordance with the ASU.

The main types of revenue contracts are:

• Transaction fees - Transaction fees represent fees charged by the Company for the performance obligation of executing a trade on its markets. These fees can be variable based on trade volume tiered discounts, however, as all tiered discounts are calculated monthly, the actual discount is recorded on a monthly basis. Transaction fees, as well as any tiered volume discounts, are calculated and billed monthly in accordance with the Company’s published fee schedules. Transaction fees are recognized across all segments. The Company also pays liquidity payments to customers based

8

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

on its published fee schedules. The Company uses these payments to improve the liquidity on its markets and therefore recognizes those payments as a cost of revenue.

• Access fees - Access fees represent fees assessed for the opportunity to trade, including fees for trading-related functionality across all segments. These fees are billed monthly in accordance with the Company’s published fee schedules and recognized on a monthly basis when the performance obligation is met. There is no remaining performance obligation after revenue is recognized.

• Exchange services and other fees - To facilitate trading, the Company offers technology services, terminal and other equipment rights, maintenance services, trading floor space and telecommunications services. Trading floor and equipment rights are generally on a month-to-month basis. Facilities, systems services and other fees are generally monthly fee-based, although certain services are influenced by trading volume or other defined metrics, while others are based solely on demand. All fees associated with the trading floor are recognized in the Options segment.

• Market data fees - Market data fees represent the fees received by the Company from the U.S. tape plans and fees charged to customers for proprietary market data. Fees from the U.S. tape plans are collected monthly based on published fee schedules and distributed quarterly to the U.S. exchanges based on a known formula. A contract for proprietary market data is entered into and charged on a monthly basis in accordance with the Company’s published fee schedules as the service is provided. Both types of market data are satisfied over time, and revenue is recognized on a monthly basis as the customer receives and consumes the benefit as the Company provides the data. U.S. tape plan market data is recognized in the U.S. Equities and Options segments. Proprietary market data fees are recognized across all segments.

• Regulatory fees- There are two types of regulatory fees that the Company recognizes. The first type represents fees collected by the Company to cover the Section 31 fees charged to the Exchanges by the SEC. The fees charged to customers are based on the fee set by the SEC per notional value of the transaction executed on the Company’s U.S. securities markets. These fees are calculated and billed monthly and are recognized in the U.S. Equities and Options segments. As the Exchanges are responsible for the ultimate payment to the SEC, the exchanges are considered the principal in these transactions. Regulatory fees also includes the options regulatory fee (ORF) which supports the Company’s regulatory oversight function in the Options segment and other miscellaneous regulatory fees.

• Other revenue - Other revenueprimarily includes revenue from various licensing agreements, all fees related to the trade reporting facility operated in the European Equities segment, and revenue associated with advertisements through the Company’s website.

9

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

All revenue recognized in the income statement is considered to be revenue from contracts with customers. The following table depicts the disaggregation of revenue according to product line and segment (in millions):

											Corporate
			U.S.				European		Global		Items and
	Options		Equities		Futures		Equities		FX		Eliminations		Total
Three months ended September 30, 2017
Transaction fees	$	172.3	$	185.5	$	36.6	$	19.0	$	9.9	$	—	$	423.3
Access fees	14.4		12.5		0.4		2.0		0.8		—		30.1
Exchange services and other fees	10.0		5.7		2.5		1.3		0.5		—		20.0
Market data fees	10.0		33.1		0.8		2.8		0.1		—		46.8
Regulatory fees	13.7		69.8		—		—		—		—		83.5
Other revenue	4.4		1.9		—		1.2		—		0.2		7.7
	$	224.8	$	308.5	$	40.3	$	26.3	$	11.3	$	0.2	$	611.4
Timing of revenue recognition
Services transferred at a point in time	$	190.4	$	257.2	$	36.6	$	20.2	$	9.9	$	0.2	$	514.5
Services transferred over time	34.4		51.3		3.7		6.1		1.4		—		96.9
	$	224.8	$	308.5	$	40.3	$	26.3	$	11.3	$	0.2	$	611.4
Three months ended September 30, 2016
Transaction fees	$	97.9	$	—	$	26.6	$	—	$	—	$	—	$	124.5
Access fees	12.8		—		0.2		—		—		—		13.0
Exchange services and other fees	9.4		—		2.0		—		—		—		11.4
Market data fees	7.6		—		0.7		—		—		—		8.3
Regulatory fees	9.1		—		—		—		—		—		9.1
Other revenue	2.4		—		—		—		—		—		2.4
	$	139.2	$	—	$	29.5	$	—	$	—	$	—	$	168.7

10

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

											Corporate
			U.S.				European		Global		Items and
	Options		Equities		Futures		Equities		FX		Eliminations		Total
Nine months ended September 30, 2017
Transaction fees	$	493.7	$	470.5	$	99.3	$	47.0	$	23.1	$	—	$	1,133.6
Access fees	40.6		29.4		1.4		4.4		1.8		—		77.6
Exchange services and other fees	33.0		13.6		4.7		2.9		1.1		—		55.3
Market data fees	30.9		78.1		1.6		6.5		0.2		—		117.3
Regulatory fees	41.1		164.0		—		—		—		—		205.1
Other revenue	11.7		4.2		0.7		2.4		—		0.5		19.5
	$	651.0	$	759.8	$	107.7	$	63.2	$	26.2	$	0.5	$	1,608.4
Timing of revenue recognition
Services transferred at a point in time	$	546.5	$	638.7	$	100.0	$	49.4	$	23.1	$	0.5	$	1,358.2
Services transferred over time	104.5		121.1		7.7		13.8		3.1		—		250.2
	$	651.0	$	759.8	$	107.7	$	63.2	$	26.2	$	0.5	$	1,608.4
Nine months ended September 30, 2016
Transaction fees	$	302.2	$	—	$	76.1	$	—	$	—	$	—	$	378.3
Access fees	38.8		—		0.6		—		—		—		39.4
Exchange services and other fees	28.3		—		5.9		—		—		—		34.2
Market data fees	22.2		—		2.3		—		—		—		24.5
Regulatory fees	27.4		—		—		—		—		—		27.4
Other revenue	7.9		—		0.6		—		—		—		8.5
	$	426.8	$	—	$	85.5	$	—	$	—	$	—	$	512.3

Contract liabilities for the nine months ended September 30, 2017 primarily represent prepayments of transaction fees and certain access and market data fees to the Exchanges. The revenue recognized from contract liabilities and the remaining balance is shown below (in millions):

	January 1, 2017		Cash Additions		Revenue Recognition			September 30, 2017
Liquidity provider sliding scale (1)	$	—	$	12.0	$	(9.0	)	$	3.0
Other, net	3.1		12.9		(7.6		)	8.4
Total deferred revenue	$	3.1	$	24.9	$	(16.6	)	$	11.4

(1)  Liquidity providers are eligible to participate in the sliding scale program, which involves prepayment of transaction fees, and to receive reduced fees based on the achievement of certain volume thresholds within a calendar month. These transaction fees are amortized and recorded ratably as the transactions occur over the period.

3.     ACQUISITIONS

Bats Global Markets, Inc.

On February 28, 2017, pursuant to the Agreement and Plan of Merger, dated as of September 25, 2016 (the “Merger Agreement”), by and among Cboe, Bats, CBOE Corporation, a Delaware corporation and a wholly-owned subsidiary of Cboe (“Merger Sub”), and Cboe Bats, LLC (formerly CBOE V, LLC), a Delaware limited liability company and a wholly-owned subsidiary of Cboe (“Merger LLC”), Cboe completed the merger of Merger Sub with and into Bats and the subsequent merger of Bats with and into Merger LLC. As a result of the Merger, Bats became a wholly-owned subsidiary of Cboe.

11

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

The acquisition-date fair value of the consideration transferred totaled $4.0 billion, which consisted of the following (in millions):

Cash	$	955.5
Common stock issued	2,387.3
Equity awards issued	37.4
	3,380.2
Debt extinguished	580.0
Total consideration paid	$	3,960.2

As a result of the Merger, each share of voting common stock of Bats, par value of $0.01 per share (“Bats Voting Common Stock”), and each share of non-voting common stock of Bats, par value of $0.01 per share (“Bats Non-Voting Common Stock” and, together with the Bats Voting Common Stock, “Bats Common Stock”), issued and outstanding immediately prior to the effective time of the Merger (the “Effective Time”) (other than shares held by Cboe, Bats or any of their respective subsidiaries, shares held by any holder of Bats Common Stock who was entitled to demand and properly demanded appraisal of such shares under Delaware law and unvested restricted shares of Bats Common Stock granted under any Bats equity incentive plan (all such shares described in this parenthetical, “Excluded Shares”)) was converted into, at the election of the holder of such share, either (i) 0.3201 of a share of common stock, par value of $0.01 per share, of Cboe (“Cboe Common Stock”) and $10.00 in cash (the “Mixed Consideration”), (ii) $14.99 in cash and 0.2577 of a share of Cboe Common Stock (the “Cash Election Consideration”) or (iii) 0.4452 of a share of Cboe Common Stock (the “Stock Election Consideration”). Pursuant to the terms of the Merger Agreement, the Cash Election Consideration and Stock Election Consideration payable in the Merger were calculated based on the volume-weighted average price (rounded to four decimal places) of shares of Cboe Common Stock on The Nasdaq Stock Market LLC for the period of ten consecutive trading days ended on February 24, 2017, which was $79.9289. The Cash Election Consideration and the Stock Election Consideration were subject to automatic adjustment, as described in the Merger Agreement and in the definitive joint proxy statement/prospectus dated December 9, 2016, filed by Cboe with the SEC on December 12, 2016, as amended and supplemented from time to time (the “Prospectus”), to ensure that the total amount of cash paid and the total number of shares of Cboe Common Stock issued in the Merger were the same as what would have been paid and issued if all holders of Bats Common Stock received the Mixed Consideration at the Effective Time.

The amounts in the table below represent the allocation of the purchase price and are subject to revision during the remainder of the measurement period, a period not to exceed twelve months from the acquisition date. Adjustments to the provisional values during the measurement period will be recorded in the reporting period in which the adjustment amounts are determined. The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the acquisition date (in millions):

Cash and cash equivalents	$	130.1
Accounts receivable	117.8
Financial investments	66.0
Property and equipment	21.8
Other assets	32.8
Goodwill	2,651.0
Intangibles	2,000.0
Accounts payable	(33.7		)
Accrued expenses	(26.2		)
Section 31 fees payable	(143.6		)
Income tax payable	(52.9		)
Deferred tax liability	(720.3		)
Other liabilities	(82.6		)
	$	3,960.2

For tax purposes, no tax deductible goodwill was generated as a result of this acquisition. Goodwill was assigned to the Options, U.S. Equities, European Equities, and Global FX segments as further described in Note 9 and is attributable to the expansion of asset classes, broadening of geographic reach, and expected synergies of the combined workforce, products and

12

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

technologies of the Company and Bats. The intangible assets were assigned to the Options, U.S. Equities, European Equities, and Global FX segments in the following manner and will be amortized over the following useful lives:

			U.S.		European				Useful life
(amounts in millions)	Options		Equities		Equities		Global FX		(years)
Trading registrations and licenses	$	95.5	$	572.7	$	171.8	$	—	indefinite
Customer relationships	37.1		222.9		160.0		140.0		20
Market data customer relationships	53.6		322.0		60.0		64.4		15
Technology	22.5		22.5		22.5		22.5		7
Trademarks and trade names	1.0		6.0		1.8		1.2		2
Goodwill	226.4		1,738.1		419.3		267.2
	$	436.1	$	2,884.2	$	835.4	$	495.3

There were no goodwill or intangible assets assigned to the Futures segment as a result of this transaction as Bats did not operate a Futures business and no synergies are attributable to this segment.

The fair value of accounts receivable acquired was $117.8 million. The gross amount of accounts receivable was $118.0 million of which $0.2 million was deemed uncollectable.

The Company expensed $5.5 million of acquisition-related costs during the three months ended September 30, 2017 that included $3.4 million of compensation-related costs and $2.1 million of professional fees. These expenses are included in acquisition-related costs in the condensed consolidated statements of income.

The Company expensed $75.4 million of acquisition-related costs during the nine months ended September 30, 2017 that included $36.9 million of compensation-related costs, $22.7 million of professional fees, $14.9 million of an impairment of capitalized data processing software, and $0.9 million of facilities expenses. These expenses are included in acquisition-related costs in the condensed consolidated statements of income.

The amounts of revenue, operating income and net income of Bats are included in the Company’s condensed consolidated statements of income from the acquisition date to the three and nine months ended September 30, 2017 and are as follows (in millions):

	Three Months Ended September 30,		Nine Months Ended September 30,
	2017		2017
Revenue	$	411.6	$	1,017.4
Operating income	27.1		53.7
Net income	15.7		33.7

The financial information in the table below summarizes the combined results of operations of the Company and Bats, on a pro forma basis, as though the companies had been combined as of January 1, 2016. The pro forma financial information is presented for informational purposes only and is not indicative of the results of operations that would have been achieved if the acquisition had taken place at the beginning of the period presented. Such pro forma financial information is based on the historical financial statements of the Company and Bats. This pro forma financial information is based on estimates and assumptions that have been made solely for purposes of developing such pro forma information, including, without limitation, preliminary purchase accounting adjustments. The pro forma financial information does not reflect any synergies or operating cost reductions that may be achieved from the combined operations. The pro forma financial information combines the historical results for the Company and Bats for the three months ended September 30, 2016 and nine months ended September 30, 2017 and 2016 in the following table (in millions, except per share amounts): 

13

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

	Three Months Ended September 30,		Nine Months Ended September 30,
	2016		2017		2016
Revenue	$	610.3	$	1,881.3	$	1,930.9
Operating income	98.2		354.2		306.1
Net income allocated to common stockholders	52.6		201.3		170.1
Earnings per share:
Basic	$	0.47	$	1.79	$	1.51
Diluted	$	0.47	$	1.79	$	1.51

The supplemental 2017 and 2016 pro forma amounts have been calculated after applying the Company's accounting policies and adjusting the results to reflect the additional amortization that would have been charged assuming the adjusted fair values of acquired intangible assets had been applied on January 1, 2017 and on January 1, 2016. The supplemental 2017 pro forma financial information includes pro forma adjustments of $61.7 million for acquisition-related costs, such as fees to investment bankers, attorneys, accountants and other professional advisors, as well as severance to employees.

4. SEVERANCE

Subsequent to the Bats acquisition, the Company determined that certain employees' positions were redundant. As such, the Company communicated employee termination benefits to these employees.

The following is a summary of the employee termination benefits recognized within acquisition costs in the Corporate Items and Eliminations unit in the condensed consolidated statements of income (in millions):

	Employee Termination Benefits
Balance at December 31, 2016	$	0.4
Termination benefits accrued	20.7
Termination payments made	(19.7		)
Balance at September 30, 2017	$	1.4

14

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

5. INVESTMENTS

As of September 30, 2017 and December 31, 2016, the Company's investments were comprised of the following (in millions):

	September 30, 2017		December 31, 2016
Equity Method:
Investment in Signal Trading Systems, LLC	$	13.4	$	12.4
Investment in EuroCCP	9.2		—
Total equity method investments	22.6		12.4
Cost Method:
Investment in OCC	30.3		30.3
Other cost method investments	30.3		30.2
Total cost method investments	60.6		60.5
Total Investments	$	83.2	$	72.9

Equity Method

Equity method investments include investments in Signal Trading Systems, LLC ("Signal") and EuroCCP, a Dutch domiciled clearing house. EuroCCP is one of three interoperable central counterparties, or CCPs, used to clear trades conducted on Cboe Europe Equities' markets. Cboe Europe Equities owns 20% of EuroCCP and can exercise significant influence over the entity as an equal shareholder with four other investors.

Cost Method

The carrying amount of cost method investments totaled $60.6 million as of September 30, 2017 and $60.5 million as of December 31, 2016, and is included in investments in the condensed consolidated balance sheets. The Company accounts for these investments using the cost-method of accounting primarily as a result of the Company's inability to exercise significant influence as the Company is a smaller shareholder of these investments. As of September 30, 2017, cost method investments primarily reflect a 20% investment in OCC and minority investments in American Financial Exchange, CurveGlobal and Eris Exchange Holdings, LLC.

In December 2014, OCC announced a newly-formed capital plan. The OCC capital plan was designed to strengthen OCC's capital base and facilitate its compliance with proposed SEC regulations for Systemically Important Financial Market Utilities ("SIFMUs") as well as international standards applicable to financial market infrastructures. On February 26, 2015, the SEC issued a notice of no objection to OCC's advance notice filing regarding the capital plan, and OCC and OCC's existing exchange stockholders, which include Cboe Options, subsequently executed agreements effecting the capital plan. Under the plan, each of OCC's existing exchange stockholders agreed to contribute its pro-rata share, based on ownership percentage, of $150 million in equity capital, which would increase OCC's shareholders' equity, and to provide its pro rata share in replenishment capital, up to a maximum of $40 million per exchange stockholder, if certain capital thresholds are breached. OCC also adopted policies under the plan with respect to fees, customer refunds, and stockholder dividends, which envision an annual dividend payment to the exchange stockholders equal to the portion of OCC's after-tax income that exceeds OCC's capital requirements after payment of refunds to OCC's clearing members (with such customer refunds generally to constitute 50% of the portion of OCC's pre-tax income that exceeds OCC's capital requirements). On March 3, 2015, in accordance with the plan, Cboe Options contributed $30 million to OCC. That contribution has been recorded under investments in the condensed consolidated balance sheets as of September 30, 2017.

On March 6, 2015, OCC informed Cboe Options that the SEC, acting though delegated authority, had approved OCC's proposed rule filing for the capital plan. Following petitions to review the approval based on delegated authority, the SEC conducted its own review and then approved the proposed rule change implementing OCC's capital plan. Certain petitioners subsequently appealed the SEC approval order for the OCC capital plan to the U.S. Court of Appeals for the D.C. Circuit and moved to stay the SEC approval order. On February 23, 2016, the Court denied the petitioners' motion to stay. On August 8,

15

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

2017, the Court held that the SEC’s approval order lacked reasoned decision-making sufficient to support the SEC’s conclusion that the OCC capital plan complied with applicable statutory requirements. The Court declined to vacate the SEC’s approval order or to require the unwinding of actions taken under the OCC capital plan, but instead remanded the matter to the SEC for further proceedings concerning whether that capital plan complies with those statutory requirements. Petitioners requested a stay of dividend payments to the exchange stockholders until the SEC made a final decision about the OCC capital plan, but the SEC denied that request on September 14, 2017. On that date, the SEC also established a schedule for interested parties to provide information for the SEC’s consideration on the merits of the proposed capital plan, and that schedule presently calls for the last submissions to be made by November 13, 2017.

6. FINANCIAL INVESTMENTS

The Company’s financial investments with original or acquired maturities longer than three months, but that mature in less than one year from the condensed consolidated balance sheet date and any money market funds that are considered cash and cash equivalents are classified as current assets and are summarized as follows (in millions):

	September 30, 2017
	Cost basis		Unrealized gains		Unrealized losses		Fair value
Trading securities:
U.S. Treasury securities	$	0.5	$	—	$	—	$	0.5
Other securities	1.9		—		—		1.9
Money market funds	1.5		—		—		1.5
Total	$	3.9	$	—	$	—	$	3.9

	December 31, 2016
	Cost basis		Unrealized gains		Unrealized losses		Fair value
Money market funds	$	67.5	$	—	$	—	$	67.5
Total	$	67.5	$	—	$	—	$	67.5

7. PROPERTY AND EQUIPMENT, NET

Property and equipment consisted of the following as of September 30, 2017 and December 31, 2016 (in millions):

	September 30,			December 31,
	2017			2016
Construction in progress	$	11.5		$	0.2
Building	77.4			77.0
Furniture and equipment	168.2			138.8
Total property and equipment	257.1			216.0
Less accumulated depreciation	(179.9		)	(160.1		)
Total property and equipment, net	$	77.2		$	55.9

Depreciation expense using the straight-line method was $7.9 million and $6.0 million for the three months ended September 30, 2017 and 2016, respectively, and $23.2 million and $17.9 million for the nine months ended September 30, 2017 and 2016, respectively.

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Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

8. OTHER ASSETS, NET

Other assets, net consisted of the following as of September 30, 2017 and December 31, 2016 (in millions):

	September 30,			December 31,
	2017			2016
Software development work in progress	$	5.9		$	12.3
Data processing software	217.0			222.6
Less accumulated depreciation	(184.9		)	(172.0		)
Data processing software, net	38.0			62.9
Other assets (1)	14.0			9.8
Data processing software and other assets, net	$	52.0		$	72.7

(1) At December 31, 2016, other assets included $6.2 million of deferred financing costs and $3.5 million of deferred tax assets. The deferred financing costs were reclassified in 2017 and recorded as a reduction of long-term debt. At September 30, 2017, the majority of the balance included long-term prepaid assets and notes receivable.

Amortization expense related to data processing software was $4.9 million and $3.7 million for the three months ended September 30, 2017 and 2016, respectively, and $13.2 million and $15.1 million for the nine months ended September 30, 2017 and 2016, respectively.

9. GOODWILL AND INTANGIBLE ASSETS, NET

The following table presents the details of goodwill by segment (in millions): 

				U.S.		European		Global		Corporate Items
	Options			Equities		Equities		FX		and Eliminations		Total
Balance as of December 31, 2016	$	7.7		$	—	$	—	$	—	$	18.8	$	26.5
Additions	226.4			1,738.1		419.3		267.2		—		2,651.0
Dispositions	(1.4		)	—		—		—		—		(1.4		)
Changes in foreign currency exchange rates	—			—		20.2		—		—		20.2
Balance as of September 30, 2017	$	232.7		$	1,738.1	$	439.5	$	267.2	$	18.8	$	2,696.3

Goodwill has been allocated to specific reporting units for purposes of impairment testing - Options, U.S. Equities, European Equities and Global FX. No goodwill has been allocated to Futures. Goodwill impairment testing is performed annually in the fiscal fourth quarter or more frequently if conditions exist that indicate that the asset may be impaired. The allocation of the new goodwill did not impact the existing goodwill assignment to reporting units and there are no aggregate impairments of goodwill.

The following table presents the details of the intangible assets (in millions):

				U.S.			European			Global			Corporate Items
	Options			Equities			Equities			FX			and Eliminations			Total
Balance as of December 31, 2016	$	2.0		$	—		$	—		$	—		$	6.7		$	8.7
Additions	209.7			1,146.1			416.1			228.1			—			2,000.0
Dispositions	(0.2		)	—			—			—			—			(0.2		)
Amortization	(10.5		)	(52.0		)	(16.5		)	(20.0		)	(0.9		)	(99.9		)
Changes in foreign currency exchange rates	—			—			31.6			—			—			31.6
Balance as of September 30, 2017	$	201.0		$	1,094.1		$	431.2		$	208.1		$	5.8		$	1,940.2

For the three months ended September 30, 2017 and 2016, amortization expense was $42.8 million and $0.4 million, respectively.  For the nine months ended September 30, 2017 and 2016, amortization expense was $99.9 million and $1.3

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Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

million, respectively.  The estimated future amortization expense is $42.4 million for the remainder of 2017, $158.1 million for 2018, $137.2 million for 2019, $120.8 million for 2020, $105.6 million for 2021 and $93.4 million for 2022.

The amounts in the table below represent the preliminary allocation of the purchase price and are subject to revision during the remainder of the measurement period, a period not to exceed 12 months from the acquisition date. Adjustments to the provisional values during the measurement period will be recorded in the reporting period in which the adjustment amounts are determined.

The following tables present the categories of intangible assets as of September 30, 2017 and December 31, 2016 (in millions):

																Remaining
	September 30, 2017															Weighted Average
				U.S.			European						Corporate Items			Amortization
	Options			Equities			Equities			Global FX			and Eliminations			Period (in years)
Trading registrations and licenses	$	95.5		$	572.7		$	185.1		$	—		$	—		Indefinite
Customer relationships	37.9			222.9			172.4			140.0			3.0			19
Market data customer relationships	53.6			322.0			64.6			64.4			—			14
Technology	23.4			22.5			24.2			22.5			4.0			6
Trademarks and tradenames	1.4			6.0			1.9			1.2			1.0			2
Other	0.2			—			—			—			—			2
Accumulated amortization	(11.0		)	(52.0		)	(17.0		)	(20.0		)	(2.2		)
	$	201.0		$	1,094.1		$	431.2		$	208.1		$	5.8

													Remaining
	December 31, 2016												Weighted Average
				U.S.		European				Corporate			Amortization
	Options			Equities		Equities		Global FX		and Other			Period (in years)
Trading registrations and licenses	$	—		$	—	$	—	$	—	$	—		—
Customer relationships	0.9			—		—		—		3.0			9
Market data customer relationships	—			—		—		—		—			—
Technology	1.1			—		—		—		4.0			4
Trademarks and tradenames	0.4			—		—		—		1.0			6
Other	0.2			—		—		—		—			2
Accumulated amortization	(0.6		)	—		—		—		(1.3		)
	$	2.0		$	—	$	—	$	—	$	6.7

18

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

10. ACCOUNTS PAYABLE AND ACCRUED LIABILITIES

Accounts payable and accrued liabilities consisted of the following as of September 30, 2017 and December 31, 2016 (in millions):

	September 30, 2017		December 31, 2016
Compensation and benefit-related liabilities	$	13.9	$	25.1
Termination benefits	1.4		0.4
Royalties	19.7		17.8
Accrued liabilities	58.4		25.4
Marketing fee payable	8.1		7.2
Accounts payable	38.9		6.5
Total accounts payable and accrued liabilities	$	140.4	$	82.4

11. DEBT

The Company's long-term debt consisted of the following as of September 30, 2017 and December 31, 2016 (in millions):

	September 30,		December 31,
	2017		2016
Term Loan Agreement	$	369.6	$	—
3.650% Senior Notes	643.8		—
1.950% Senior Notes	299.0		—
Revolving Credit Agreement	—		—
Total long-term debt	$	1,312.4	$	—

In connection with the Merger, on December 15, 2016, the Company entered into the Term Loan Agreement (as defined below) providing for a $1.0 billion senior unsecured delayed draw term loan facility and on January 12, 2017, the Company issued $650 million aggregate principal amount of 3.650% Senior Notes due 2027 ("3.650% Senior Notes"). The proceeds from this delayed draw term loan facility and issuance of our senior notes, in addition to using cash on hand at Cboe and Bats, were used to finance a portion of the cash component of the Merger consideration, to refinance existing indebtedness of Bats and its subsidiaries and to pay related fees and expenses. In addition, on December 15, 2016, the Company entered into a $150 million revolving credit facility to be used for working capital and other general corporate purposes.

On June 29, 2017, Cboe refinanced approximately $300 million of the amounts outstanding under the Term Loan Agreement through the issuance of $300 million in aggregate principal amount of 1.950% Senior Notes due 2019 ("1.950% Senior Notes" and, together with the 3.650% Senior Notes, the "Notes").

Term Loan Agreement

On December 15, 2016, the Company, as borrower, entered into a Term Loan Credit Agreement (the “Term Loan Agreement”) with Bank of America, N.A., as administrative agent, certain lenders named therein (the “Term Lenders”), Merrill Lynch, Pierce, Fenner & Smith Incorporated, as sole lead arranger and sole bookrunner, Morgan Stanley MUFG Loan Partners, LLC, as syndication agent, and Citibank, N.A., PNC Bank, National Association and JPMorgan Chase Bank, N.A., as co-documentation agents. The Term Loan Agreement provided for a senior unsecured delayed draw term loan facility (the “Term Loan Facility”) in an aggregate principal amount of $1.0 billion.

19

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

Loans under the Term Loan Agreement bear interest, at our option, at either (i) the London Interbank Offered Rate (“LIBOR”) periodically fixed for an interest period (as selected by us) of one, two, three or six months plus a margin (based on our public debt ratings) ranging from 1.00 percent per annum to 1.75 percent per annum or (ii) a daily floating rate based on the agent’s prime rate (subject to certain minimums based upon the federal funds effective rate or LIBOR) plus a margin (based on our public debt ratings) ranging from zero percent per annum to 0.75 percent per annum. The Company was required to pay a ticking fee to the agent for the account of the Term Lenders which initially accrued at a rate (based on our public debt ratings) ranging from 0.10 percent per annum to 0.30 percent per annum multiplied by the undrawn aggregate commitments of the Term Lenders in respect of the Term Loan Facility, accruing during the period commencing on December 15, 2016 and ending on the earlier of the date on which the loans are drawn.

The Term Loan Agreement contains customary representations, warranties and affirmative and negative covenants for facilities of its type, including financial covenants, events of default and indemnification provisions in favor of the Term Lenders. The negative covenants include restrictions regarding the incurrence of liens, the incurrence of indebtedness by our subsidiaries and fundamental changes, subject to certain exceptions in each case. The financial covenants require us to meet a quarterly financial test with respect to a minimum consolidated interest coverage ratio of not less than 4.00 to 1.00 and a maximum consolidated leverage ratio of not greater than 3.50 to 1.00. At September 30, 2017, the Company was in compliance with these covenants.

On February 28, 2017, Cboe made a draw under the Term Loan Agreement in the amount of $1.0 billion. Cboe used the proceeds to finance a portion of the cash component of the aggregate consideration for the Merger, repaid certain existing indebtedness of Bats, paid fees and expenses incurred in connection with the transactions contemplated by the Merger Agreement, funded working capital needs, and for other general corporate purposes. Loans under the Term Loan Agreement mature five years following the closing date of the Merger.

On June 29, 2017, Cboe refinanced approximately $300 million of the amounts outstanding under the Term Loan Agreement through the issuance of $300 million in aggregate principal amount of 1.950% Senior Notes.

1.950% Senior Notes due 2019

On June 29, 2017, the Company issued $300 million aggregate principal amount of 1.950% Senior Notes. The form and terms of the 1.950% Senior Notes were established pursuant to an Officer’s Certificate, dated as of June 29, 2017, supplementing the Indenture (as defined below). Underwriter fees of $0.8 million were also capitalized and netted against long-term debt in the consolidated balance sheet, while other issuance fees of $0.9 million were expensed and are included in debt issuance costs on the consolidated statement of income for the nine months ended September 30, 2017.

The Company used the net proceeds from the 1.950% Senior Notes to repay amounts under the Term Loan Agreement. The 1.950% Senior Notes mature on June 28, 2019 and bear interest at the rate of 1.950% per annum, payable semi-annually in arrears on June 28 and December 28 of each year, commencing December 28, 2017. The 1.950% Senior Notes are unsecured obligations of the Company and rank equally with all of the Company’s other existing and future unsecured, senior indebtedness, but are effectively junior to the Company’s secured indebtedness, to the extent of the value of the assets securing such indebtedness, and will be structurally subordinated to the secured and unsecured indebtedness of the Company’s subsidiaries.

The Company has the option to redeem some or all of the 1.950% Senior Notes, at any time in whole or from time to time in part, at the redemption prices set forth in the Officer’s Certificate. The Company may also be required to offer to repurchase the 1.950% Senior Notes upon the occurrence of a Change of Control Triggering Event (as such term is defined in the Officer’s Certificate) at a repurchase price equal to 101% of the aggregate principal amount of 1.950% Senior Notes to be repurchased.

3.650% Senior Notes due 2027

On January 12, 2017, the Company entered into an indenture (the “Indenture”), by and between the Company and Wells Fargo Bank, National Association, as trustee, in connection with the issuance of $650 million aggregate principal amount of the Company’s 3.650% Senior Notes. The form and terms of the 3.650% Senior Notes were established pursuant to an Officer’s Certificate, dated as of January 12, 2017, supplementing the Indenture.

20

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

The Company used a portion of the net proceeds from the 3.650% Senior Notes to fund, in part, the Merger, including the payment of related fees and expenses and the repayment of Bats’ existing indebtedness, and the remainder for general corporate purposes. The 3.650% Senior Notes mature on January 12, 2027 and bear interest at the rate of 3.650% per annum, payable semi-annually in arrears on January 12 and July 12 of each year, commencing July 12, 2017. The 3.650% Senior Notes are unsecured obligations of the Company and rank equally with all of the Company’s other existing and future unsecured, senior indebtedness, but are effectively junior to the Company’s secured indebtedness, to the extent of the value of the assets securing such indebtedness, and will be structurally subordinated to the secured and unsecured indebtedness of the Company’s subsidiaries.

The Company has the option to redeem some or all of the 3.650% Senior Notes, at any time in whole or from time to time in part, at the redemption prices set forth in the Officer’s Certificate. The Company may also be required to offer to repurchase the 3.650% Senior Notes upon the occurrence of a Change of Control Triggering Event (as such term is defined in the Officer’s Certificate) at a repurchase price equal to 101% of the aggregate principal amount of 3.650% Senior Notes to be repurchased.

Indenture

Under the Indenture, the Company may issue debt securities, which includes the Notes, at any time and from time to time, in one or more series without limitation on the aggregate principal amount. The Indenture governing the Notes contains customary restrictions, including a limitation that restricts our ability and the ability of certain of our subsidiaries to create or incur secured debt. Such Indenture also limits certain sale and leaseback transactions and contains customary events of default. At September 30, 2017, the Company was in compliance with these covenants.

Revolving Credit Agreement

On December 15, 2016, the Company, as borrower, entered into a Credit Agreement (the “Revolving Credit Agreement”) with Bank of America, N.A., as administrative agent and as swing line lender, certain lenders named therein (the “Revolving Lenders”), Merrill Lynch, Pierce, Fenner & Smith Incorporated, as sole lead arranger and sole bookrunner, Morgan Stanley MUFG Loan Partners, LLC, as syndication agent, and Citibank, N.A., PNC Bank, National Association and JPMorgan Chase Bank, N.A., as co-documentation agents.

The Revolving Credit Agreement provides for a senior unsecured $150 millionfive-year revolving credit facility (the “Revolving Credit Facility”) that includes a $25 million swing line sub-facility. The Company may also, subject to the agreement of the applicable lenders, increase the commitments under the Revolving Credit Facility by up to $100 million, for a total of $250 million. Subject to specified conditions, the Company may designate one or more of its subsidiaries as additional borrowers under the Revolving Credit Agreement provided that it guarantees all borrowings and other obligations of any such subsidiaries. As of September 30, 2017, no subsidiaries were designated as additional borrowers.

Funds borrowed under the Revolving Credit Agreement may be used to fund working capital and for other general corporate purposes. As of September 30, 2017, no borrowings were outstanding under the Revolving Credit Agreement. Accordingly, at September 30, 2017, $150 million of borrowing capacity was available for the purposes permitted by the Revolving Credit Agreement.

Loans under the Revolving Credit Agreement will bear interest, at our option, at either (i) LIBOR periodically fixed for an interest period (as selected by us) of one, two, three or six months plus a margin (based on our public debt ratings) ranging from 1.00 percent per annum to 1.75 percent per annum or (ii) a daily floating rate based on our prime rate (subject to certain minimums based upon the federal funds effective rate or LIBOR) plus a margin (based on our public debt ratings) ranging from zero percent per annum to 0.75 percent per annum.

Subject to certain conditions stated in the Revolving Credit Agreement, the Company may borrow, prepay and reborrow amounts under the Revolving Credit Facility at any time during the term of the Revolving Credit Agreement. The Revolving Credit Agreement will terminate and all amounts owing thereunder will be due and payable on December 15, 2021, unless the commitments are terminated earlier, either at our request or, if an event of default occurs, by the Revolving Lenders (or automatically in the case of certain bankruptcy-related events). The Revolving Credit Agreement contains customary representations, warranties and affirmative and negative covenants for facilities of its type, including financial covenants, events of default and indemnification provisions in favor of the Revolving Lenders. The negative covenants include restrictions regarding the incurrence of liens, the incurrence of indebtedness by our subsidiaries and fundamental changes, subject to certain

21

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

exceptions in each case. The financial covenants require us to meet a quarterly financial test with respect to a minimum consolidated interest coverage ratio of not less than 4.00 to 1.00 and a maximum consolidated leverage ratio of not greater than 3.50 to 1.00. At September 30, 2017, the Company was in compliance with these covenants.

Bridge Facility

In connection with entering into the Merger Agreement, the Company entered into a commitment letter with Bank of America, N.A. and Merrill Lynch, Pierce, Fenner & Smith Incorporated (or any of its designated affiliates) (Bank of America, N.A., and other such financial institutions that accede as lender to such debt commitment letter in accordance with its terms are referred to herein as the “Lenders”), which provides that, subject to the satisfaction and waiver of certain conditions which are usual and customary for financing of this type, the Lenders are committed to provide debt financing for the purposes of funding (i) the cash consideration to be paid in the transactions contemplated by the Merger Agreement, (ii) the refinancing of certain existing indebtedness of Bats and its subsidiaries and (iii) related fees and expenses, which debt financing consists of a senior unsecured 364-day bridge loan facility in an aggregate principal amount of up to $1.65 billion to the extent the Company fails to generate gross cash proceeds in an aggregate principal amount of up to $1.65 billion from permanent financing including in the form of a senior unsecured term loan facility and the issuance of senior unsecured notes on or prior to the consummation of the transaction contemplated by the Merger Agreement.  The Company paid commitment and structuring fees of $6.0 million. Through September 30, 2017, the Company has amortized $6.0 million of these fees as a result of the Company entering into more permanent debt arrangements. The Company entered into a term loan agreement and completed a notes offering, as described below, securing $1.65 billion to finance the cash portion of its acquisition of Bats as well as the repayment of Bats' existing indebtedness. As a result of securing the financing discussed above, the bridge facility was terminated.

Loan and Notes Payments and Contractual Interest

The future expected loan repayments related to the Term Loan Agreement and the Notes as of September 30, 2017 is as follows (in millions):

2017	$	—
2018	—
2019	300.0
2020	—
2021	—
Thereafter	1,025.0
Principal amounts repayable	1,325.0
Debt issuance cost	(7.1		)
Unamortized discount on Notes	(5.5		)
Total debt outstanding	$	1,312.4

Interest expense recognized on the Term Loan Agreement and the Notes is included in interest expense, net in the condensed consolidated statements of income, for the three and nine months ended September 30, 2017 and 2016 is as follows (in millions):

	Three Months Ended September 30,					Nine Months Ended September 30,
	2017			2016		2017			2016
Components of interest expense:
Contractual interest	$	10.5		$	0.2	$	29.0		$	0.2
Amortization of debt discount	0.3			—		0.6			—
Amortization of debt issuance cost	0.2			—		2.5			—
Interest expense	11.0			0.2		32.1			0.2
Interest income	(0.5		)	—		(1.2		)	—
Interest expense, net	$	10.5		$	0.2	$	30.9		$	0.2

22

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

12. ACCUMULATED OTHER COMPREHENSIVE INCOME, NET

The following represents the changes in accumulated other comprehensive income by component (in millions):

	Foreign		Unrealized					Total Other
	Currency		Investment		Post-Retirement			Comprehensive
	Translation		Gain/Loss		Benefits			Income
Balance at December 31, 2016	$	—	$	—	$	(0.8	)	$	(0.8	)
Other comprehensive income	50.7		0.1		—			50.8
Balance at September 30, 2017	$	50.7	$	0.1	$	(0.8	)	$	50.0

13. FAIR VALUE MEASURMENTS

Fair value is the price that would be received upon the sale of an asset or paid upon the transfer of a liability in an orderly transaction between market participants at the measurement date and in the principal or most advantageous market for that asset or liability. The fair value should be calculated based on assumptions that market participants would use in pricing the asset or liability, not on assumptions specific to the entity. In addition, the fair value of liabilities should include consideration of non-performance risk, including the Company’s own credit risk.

The Company applied Financial Accounting Standards Board ASC 820, Fair Value Measurement and Disclosure, which provides guidance for using fair value to measure assets and liabilities by defining fair value and establishing the framework for measuring fair value. ASC 820 applies to financial and nonfinancial instruments that are measured and reported on a fair value basis. The three-level hierarchy of fair value measurements is based on whether the inputs to those measurements are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company’s market assumptions. The fair-value hierarchy requires the use of observable market data when available and consists of the following levels:

• Level 1—Unadjusted inputs based on quoted markets for identical assets or liabilities.

• Level 2—Observable inputs, either direct or indirect, not including Level 1, corroborated by market data or based upon quoted prices in non-active markets.

• Level 3—Unobservable inputs that reflect management’s best assumptions of what market participants would use in valuing the asset or liability.

The Company has included a tabular disclosure for financial assets and liabilities that are measured at fair value on a recurring basis in the condensed consolidated balance sheet as of September 30, 2017 and December 31, 2016.

Instruments Measured at Fair Value on a Recurring Basis

The following tables presents the Company’s fair value hierarchy for those assets measured at fair value on a recurring basis as of September 30, 2017 and December 31, 2016 (in millions):

	September 30, 2017
	Total		Level 1		Level 2		Level 3
Assets:
Trading securities:
U.S. Treasury securities	$	0.5	$	0.5	$	—	$	—
Other securities	1.9		1.9		—		—
Money market funds	1.5		1.5		—		—
Total assets	$	3.9	$	3.9	$	—	$	—
Liabilities:
Contingent consideration liability	$	56.6	$	—	$	—	$	56.6
Total liabilities	$	56.6	$	—	$	—	$	56.6

23

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

	December 31, 2016
	Total		Level 1		Level 2		Level 3
Assets:
Money market funds	$	67.5	$	67.5	$	—	$	—
Total assets	$	67.5	$	67.5	$	—	$	—

The following is a description of the Company’s valuation methodologies used for instruments measured at fair value on a recurring basis:

Available-for-sale and trading securities

Financial investments classified as trading and available‑for‑sale consist of highly liquid U.S. Treasury securities. These securities are valued by obtaining feeds from a number of live data sources, including active market makers and inter‑dealer brokers and therefore categorized as Level 1.

Contingent consideration liability

In connection with the acquisition of Bats, the Company acquired a contingent consideration arrangement with the former owners of Cboe FX. The fair value of this liability at September 30, 2017 was $56.6 million.  That value is based on estimates of discounted future cash payments, a significant unobservable input, and is considered a Level 3 measurement.

Fair Value of Financial Instruments

The following table presents the Company’s fair value hierarchy for those financial instruments held by the Company as of September 30, 2017 and December 31, 2016 (in millions):

	September 30, 2017
	Total		Level 1		Level 2		Level 3
Assets:
Cash and cash equivalents	$	124.8	$	124.8	$	—	$	—
Trading investments	2.4		2.4		—		—
Available-for-sale investments	—		—		—		—
Accounts receivable	195.8		195.8		—		—
Income tax receivable	35.2		35.2		—		—
Total assets	$	358.2	$	358.2	$	—	$	—
Liabilities:
Accounts payable	$	38.9	$	—	$	38.9	$	—
Section 31 fees payable	25.4		—		25.4		—
Contingent consideration liability	56.6		—		—		56.6
Long-term debt	1,312.4		—		1,312.4		—
Total liabilities	$	1,433.3	$	—	$	1,376.7	$	56.6

24

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

	December 31, 2016
	Total		Level 1		Level 2		Level 3
Assets:
Cash and cash equivalents	$	97.3	$	97.3	$	—	$	—
Accounts receivable	76.7		76.7		—		—
Income tax receivable	53.7		53.7		—		—
Total assets	$	227.7	$	227.7	$	—	$	—
Liabilities:
Accounts payable	$	6.5	$	—	$	6.5	$	—
Total liabilities	$	6.5	$	—	$	6.5	$	—

The carrying amounts of cash and cash equivalents, accounts receivable, income tax receivable, accounts payable and Section 31 fees payable approximate fair value due to their liquid or short-term nature.

Long-term debt

The carrying amount of long-term debt approximates its fair value based on quoted LIBOR at September 30, 2017 and is considered a Level 2 measurement.

Information on Level 3 Financial Liabilities

The following table sets forth a summary of changes in the fair value of the Company’s Level 3 financial liabilities during the nine months ended September 30, 2017.

	Level 3 Financial Liabilities for the Nine Months Ended September 30, 2017
	Balance at Beginning of Period		Acquired During Period		Settlements		Balances at end of period
Liabilities
Contingent consideration liability	$	—	$	56.6	$	—	$	56.6
Total Liabilities	$	—	$	56.6	$	—	$	56.6

14. REDEEMABLE NONCONTROLLING INTEREST

Redeemable noncontrolling interest are reported on the consolidated balance sheets in mezzanine equity in Redeemable Noncontrolling Interest. The Company recognizes changes to the redemption value of redeemable noncontrolling interest as they occur and adjust the carrying value to equal the redemption value at the end of each reporting period. The resulting increases or decreases in the estimated redemption amount are affected by corresponding charges or credits against retained earnings, or in the absence of retained earnings, additional paid in capital. The redemption amounts have been estimated based on the fair value of the majority-owned subsidiary, determined based on a weighting of the discounted cash flow and other economic factors.

For the nine months endedSeptember 30, 2017, the following reflects changes in our redeemable noncontrolling interest (in millions):

	Redeemable Noncontrolling Interest
Balance as at December 31, 2016	$	12.6
Decrease due to acquiring additional equity in Vest	(3.2		)
Net loss attributable to redeemable noncontrolling interest	(0.8		)
Redemption value adjustment	0.8
Balance as at September 30, 2017	$	9.4

25

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

15. SEGMENT REPORTING

The Company previously operated as a single reportable business segment as of December 31, 2016. As a result of the Bats acquisition, beginning in 2017, the Company is reporting five segments: Options, U.S. Equities, Futures, European Equities, and Global FX, which is reflective of how the Company's chief operating decision-maker reviews and operates the business (Note 1). This change has been reflected in all periods presented. Segment performance is primarily based on operating income (loss). The Company has aggregated all of its corporate costs, acquisition-related costs, as well as other business ventures, within the Corporate Items and Eliminations unit based on the decision that those activities should not be used to evaluate the segment's operating performance; however, operating expenses that relate to activities of a specific segment have been allocated to that segment. 

The Options segment includes our options exchange business, which lists for trading options on market indexes (index options), mostly on an exclusive basis, as well as on non-exclusive "multiply-listed" options, such as options on the stocks of individual corporations (equity options) and options on other exchange-traded products (ETP options), such as exchange-traded funds (ETF options) and exchange-traded notes (ETN options) that occur on Cboe Options, C2, BZX and EDGX. It also includes the listed equity options routed transaction services that occur on Trading.

The U.S. Equities segment includes listed cash equities and ETP transaction services that occur on BZX, BYX, EDGX and EDGA. It also includes market data fees generated from the U.S. tape plans as well as fees generated from the sale of proprietary market data of these exchanges. It also includes the listed cash equities and ETPs routed transaction services, the listings business where ETPs are listed on BZX, and advertising activity from ETF.com.

The Futures segment includes the business of our futures exchange, CFE, which includes offering for trading futures on the VIX Index and other futures products.

The European Equities segment includes the pan‑European listed cash equities transaction services, ETPs, exchange‑traded commodities, and international depository receipts that occur on the Recognised Investment Exchange, operated by Cboe Europe Equities. It also includes the listed cash equities and ETPs routed transaction services that occur on Cboe Chi-X Europe, as well as the listings business where ETPs can be listed on Cboe Europe Equities.

The Global FX segment includes institutional FX trading services that occur on the Cboe FX platform, as well as non-deliverable forward FX transactions executed on Cboe SEF.

Summarized financial data of reportable segments was as follows (in millions):

												Corporate
			U.S.				European					items and
	Options		Equities		Futures		Equities		Global FX			eliminations			Total
Three months ended September 30, 2017
Revenues	$	224.8	$	308.5	$	40.3	$	26.3	$	11.3		$	0.2		$	611.4
Operating income (loss)	64.3		29.9		35.4		2.7		(3.5		)	(9.5		)	119.3
Three months ended September 30, 2016
Revenues	$	139.2	$	—	$	29.5	$	—	$	—		$	—		$	168.7
Operating income (loss)	42.6		—		25.5		—		—			(2.3		)	65.8

												Corporate
			U.S.				European					items and
	Options		Equities		Futures		Equities		Global FX			eliminations			Total
Nine Months Ended September 30, 2017
Revenues	$	651.0	$	759.8	$	107.7	$	63.2	$	26.2		$	0.5		$	1,608.4
Operating income (loss)	190.5		75.4		94.7		7.8		(8.8		)	(96.4		)	263.2
Nine Months Ended September 30, 2016
Revenues	$	426.8	$	—	$	85.5	$	—	$	—		$	—		$	512.3
Operating income (loss)	158.5		—		72.2		—		—			(7.4		)	223.3

26

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

16. EMPLOYEE BENEFITS

Legacy Cboe and new employees are eligible to participate in the Cboe Options SMART Plan (“SMART Plan”). The SMART Plan is a defined contribution plan, which is qualified under Internal Revenue Code Section 401(k). In addition, eligible employees may participate in the Supplemental Employee Retirement Plan, Executive Retirement Plan and Deferred Compensation Plan. Effective January 1, 2017, the Executive Retirement Plan is closed to new executive officers and employees. Each plan is a defined contribution plan that is non-qualified under Internal Revenue Code. The Company contributed $1.3 million and $1.5 million million to the defined contribution plans for the three months ended September 30, 2017 and 2016, respectively, and $5.1 million and $4.2 million, respectively, to the defined contribution plans for the nine months ended September 30, 2017 and 2016, respectively. For the nine months ended September 30, 2017, $1.2 million of this expense was related to the acquisition of Bats and is included in acquisition-related costs in the condensed consolidated statements of income. The remaining expense is included in compensation and benefits in the condensed consolidated statements of income.

Upon completion of the Merger, the Company assumed Bats' defined contribution plan that offers a 401(k) retirement plan eligible to legacy Bats U.S. employees. Under the plan, the Company matches participating employee contributions dollar for dollar of up to five percent of salary.  The Company’s contribution amounted to $0.6 million and $1.1 million for the three and nine months ended September 30, 2017, respectively. This expense is included in compensation and benefits in the condensed consolidated statements of income.

The Company also assumed the Cboe Europe Equities employee‑selected stakeholder contribution plan upon completion of the Merger. The Company matches participating employee contributions of up to five percent of salary. Employees of Cboe Europe Equities are eligible to participate. The Company’s contribution amounted to $0.1 million and $0.3 million for the three and nine months ended September 30, 2017, respectively. This expense is included in compensation and benefits in the condensed consolidated statements of income.

17. REGULATORY CAPITAL

As a  broker‑dealer registered with the SEC, Trading is subject to the SEC’s Uniform Net Capital Rule (Rule 15c3‑1), which requires the maintenance of minimum net capital, as defined therein. The SEC’s requirement also provides that equity capital may not be withdrawn or a cash dividend paid if certain minimum net capital requirements are not met. Trading computes the net capital requirements under the basic method provided for in Rule 15c3‑1.

As of September 30, 2017, Trading is required to maintain net capital equal to the greater of 6.67% of aggregate indebtedness items, as defined, or $0.1 million. At September 30, 2017, Trading had net capital of $11.9 million, which was $11.5 million in excess of its required net capital of $0.4 million.

As entities regulated by the FCA, Cboe Europe Equities is subject to the Financial Resource Requirement ("FRR") and Cboe Chi-X Europe is subject to the Capital Resources Requirement ("CRR"). As a RIE, Cboe Europe Equities computes its FRR in accordance with its Financial Risk Assessment, as agreed by the FCA. This FRR was $20.1 million at September 30, 2017. At September 30, 2017, Cboe Europe Equities had capital in excess of its required FRR of $23.9 million.

As a Banks, Investment firms, PRUdential (BIPRU) 50k firm, as defined by the Markets in Financial Instruments Directive of the FCA, Cboe Chi‑X Europe computes its CRR as the greater of the base requirement of $0.1 million at September 30, 2017, or the summation of the credit risk, market risk and fixed overheads requirements, as defined. At September 30, 2017, Cboe Chi‑X Europe had capital in excess of its required CRR of $0.4 million.

As a swap execution facility regulated by the CFTC, Cboe SEF is required to meet two capital adequacy tests: (i) its financial resources must be equal to at least twelve months of its projected operating costs and (ii) its unencumbered, liquid financial assets must be equal to at least six months of its projected operating costs. As of September 30, 2017, Cboe SEF had annual operating expenses of $1.4 million and had financial resources that exceeded this amount. Additionally, as of September 30, 2017, Cboe SEF had projected operating expenses from six months of $0.7 million and had unencumbered, liquid financial assets that exceeded this amount.

As a designated contract market regulated by the CFTC, CFE is required to meet two capital adequacy tests: (i) its financial resources must be equal to at least twelve months of its projected operating costs and (ii) its unencumbered, liquid financial assets must be equal to at least six months of its projected operating costs. As of September 30, 2017, CFE had annual

27

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

projected operating expenses of $19.2 million and had financial resources that exceeded this amount. Additionally, as of September 30, 2017, CFE had projected operating expenses for six months of $9.6 million and had unencumbered, liquid financial assets that exceeded this amount.

18. STOCK-BASED COMPENSATION

Stock-based compensation is based on the fair value of the award on the date of grant, which is recognized over the related service period, net of actual forfeitures. The service period is the period over which the related service is performed, which is generally the same as the vesting period. In the first quarter of 2017, the Company adopted ASU 2016-09, Compensation — Stock Compensation. This ASU simplifies several aspects of the accounting for stock-based payment transactions (See Note 1).

On February 19, 2017, the Company granted 251,273 restricted stock units ("RSUs"), each of which entitles the holder to one share of common stock upon vesting, to certain officers and employees at a fair value of $80.40 per share. The RSUs vest ratably over three years, with one-third vesting on each anniversary of the grant date, and vesting accelerates upon the occurrence of a change in control. Unvested RSUs will be forfeited if the officer or employee leaves the Company prior to the applicable vesting date, except in limited circumstances. The RSUs have no voting rights but entitle the holder to receive dividend equivalents.

On February 28, 2017, the Company granted 68,254 RSUs, each of which entitles the holder to one share of common stock upon vesting, to certain officers and employees at a fair value of $78.05 per share. The RSUs vest ratably over three years, with one-third vesting on each anniversary of the grant date, and vesting accelerates upon the occurrence of a change in control. Unvested RSUs will be forfeited if the officer or employee leaves the Company prior to the applicable vesting date, except in limited circumstances. The RSUs have no voting rights but entitle the holder to receive dividend equivalents.

On February 28, 2017, the Company granted 49,703 RSUs, each of which entitles the holder to one share of common stock upon vesting, to certain officers and employees at a fair value of $78.05 per share. The RSUs vest on the third anniversary of the grant date, and vesting accelerates upon the occurrence of a change in control. Unvested RSUs will be forfeited if the officer or employee leaves the Company prior to the applicable vesting date, except in limited circumstances. The RSUs have no voting rights but entitle the holder to receive dividend equivalents.

The Merger Agreement provided that the number of shares of Cboe common stock into which each such award of Cboe Restricted Shares is converted will be equal to the number of shares of Bats common stock subject to the corresponding Bats Restricted Share award multiplied by the exchange ratio, which is the sum of (a) 0.3201 of a share of Cboe common stock and (b) the quotient obtained by dividing $10.00 by the volume-weighted average price, rounded to four decimal places, of shares of Cboe common stock on NASDAQ for the ten consecutive trading day period ending on the second full trading day prior to the effective time of the merger. The remaining service period will be completed post-merger and future vesting and expense will be recognized accordingly. Pursuant to the Merger Agreement, each award of restricted Bats common stock (“Bats restricted shares”) granted under any of the Bats Plans that was unvested immediately prior to the Effective Time was assumed by the Registrant and converted into awards of restricted shares totaling 622,527 of Common Stock at a fair value of $78.05 per share.

28

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

In addition, on February 19, 2017 and February 28, 2017, the Company granted 41,481 and 19,255 RSUs, respectively, contingent on the achievement of performance conditions at a fair value of $111.00 and $102.00, respectively, per RSU, related to total shareholder return during the performance period. The Company used the Monte Carlo valuation model method to estimate the fair value of the total shareholder return RSUs which incorporated the following assumptions: risk-free interest rate (0.90)%, three-year volatility (21.1)% and three year correlation with S&P 500 Index (0.41). Each of these performance shares has a performance condition under which the number of units ultimately awarded will vary from 0% to 200% of the original grant, with each unit representing the contingent right to receive one share of our common stock. The vesting period for the RSUs contingent on the achievement of performance is three years. For each of the performance awards, the RSUs will be settled in shares of our common stock following vesting of the RSU assuming that the participant has been continuously employed during the vesting period, subject to acceleration in the event of a change in control of the Company or in the event of a participant’s earlier death or disability. Participants have no voting rights with respect to the RSUs until the issuance of the shares of stock. Dividends are accrued by the Company and will be paid once the RSUs contingent on the achievement of performance conditions vest.

On May 18, 2017, the Company granted 15,405 shares of stock, at a fair value of $84.41 per share, to non employee

members of the board of directors. The shares have a one-year vesting period and vesting accelerates upon the occurrence of a

change in control of the Company. Unvested portions of the stock will be forfeited if the director leaves the Company prior to

the applicable vesting date.

On May 15, 2017, the Company granted 2,655 RSUs, each of which entitles the holder to one share of common stock upon vesting, to certain officers and employees at a fair value $85.00 per share. On August 15, 2017, the Company granted 1,612 RSUs at a fair value of $97.54 per share. The RSUs vest ratably over three-years , with one-third vesting on each anniversary of the grant date, and vesting accelerates upon the occurrence of a change in control. Unvested RSUs will be forfeited if the officer or employee leaves the Company prior to the applicable vesting date, except in limited circumstances. The RSUs have no voting rights but entitle the holder to receive dividend equivalents.

The Company recognized stock-based compensation expense of $9.1 million and $3.8 million for the three months ended September 30, 2017 and 2016, respectively, and $39.1 million and $10.9 million for the nine months ended September 30, 2017 and 2016. Stock-based compensation expense includes $9.1 million of accelerated expense recorded in the first quarter for certain officers and employees as a result of attaining certain age and service based requirements in our long-term incentive plan and award agreements. Stock-based compensation expense is included in compensation and benefits and acquisition-related costs in the condensed consolidated statements of income.

Pursuant to the Merger Agreement, each outstanding option to purchase Bats common stock (each, a “Bats stock option”) granted under any of the Bats Global Markets, Inc. 2009 Stock Option Plan, the Bats Global Markets, Inc. Third Amended and Restated 2012 Equity Incentive Plan and the Bats Global Markets, Inc. 2016 Omnibus Incentive Plan (collectively, the “Bats Plans”) that was outstanding immediately prior to the effective time of the Merger (the “Effective Time”) was converted into an option to purchase Common Stock, on the same terms and conditions (including vesting schedule) as were applicable to such Bats stock option (but taking into account any changes, including any acceleration of vesting of such Bats stock option occurring by reason of the transactions contemplated by the Merger Agreement). The number of shares of Common Stock subject to each such converted stock option equals the number of shares of Bats common stock subject to the corresponding Bats stock option immediately prior to the Effective Time, multiplied by the exchange ratio (as defined below) (subject to certain adjustments and rounding). The exercise price per share for each such converted stock option equals the per share exercise price specified in the corresponding Bats stock option divided by the exchange ratio (rounded up to the nearest cent). The “exchange ratio” is equal to 0.4452, which equals the sum of 0.3201 plus the fraction obtained by dividing $10.00 by the volume-weighted average price, rounded to four decimal points, of a share of Common Stock on NASDAQ for the ten consecutive trading days ended February 24, 2017.

Pursuant to the Merger Agreement, each award of restricted Bats common stock (“Bats restricted shares”) granted under any of the Bats Plans that was unvested immediately prior to the Effective Time was assumed by the Company and converted into an award of restricted shares of Common Stock, subject to the same terms and conditions (including vesting schedule) that applied to the applicable Bats restricted shares immediately prior to the Effective Time (but taking into account any changes, including any acceleration of vesting of such Bats restricted shares, occurring by reason provided for in the Merger Agreement). The number of shares of Common Stock subject to each such converted award of Bats restricted shares equals the number of shares of Bats common stock subject to the corresponding Bats restricted share award multiplied by the exchange ratio (as defined above).

29

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

The activity in the Company's stock options, restricted stock and restricted stock units for the nine months ended September 30, 2017 was as follows:

Stock Options

Summary stock option activity is presented below:

	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (years)	Aggregate Intrinsic Value (in millions)
Outstanding, December 31, 2016					—
Granted	683,390		$	22.45	4.8 years	$	40.1
Exercised	(231,003	)	$	18.50
Outstanding and expected to vest at September 30, 2017	452,387		$	25.13	5.4 years	$	37.3
Exercisable at September 30, 2017	371,318		$	24.48	5.0 years	$	31.8

The Company estimated the grant date fair value of options awarded during 2017 using the Black-Scholes valuation

model with the following assumptions:

	2017
Expected term (in years)	4.2
Expected volatility	19.8%
Expected dividend yield	1.3%
Risk-free rate	1.78%
Forfeiture rate	—%

Summary of the status of nonvested options is presented below:

Nonvested Options	Options	Weighted Average Grant-Date Fair Value
January 1, 2017 - Nonvested	—	$	—
Vested	—	—
Granted	81,068	49.17
Forfeited	—	—
September 30, 2017 - Nonvested	81,068	$	49.17

In the nine months ended September 30, 2017, to satisfy employee's tax obligations and cash exercise payment due upon the election to exercise 231,003 stock options, the Company purchased 65,302 shares at a cost of $6.0 million.

As of September 30, 2017, there were $2.3 million in total unrecognized compensation costs related to stock options. These costs are expected to be recognized over a weighted average period of 1.2 years as the stock options vest.

30

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

Restricted Stock and Restricted Stock Units

Summary restricted stock activity is presented below:

	Number of Shares		Weighted Average Grant Date Fair Value
Nonvested stock at December 31, 2016	480,595		$	63.64
Granted	1,091,843		78.94
Vested	(386,717	)	64.88
Forfeited	(5,442	)	73.43
Nonvested stock at September 30, 2017	1,180,279		$	77.26

In the nine months ended September 30, 2017, to satisfy employees' tax obligations upon the vesting of restricted stock, the Company purchased 144,807 shares totaling $12.0 million as the result of the vesting of 386,717 shares of restricted stock.

As of September 30, 2017, there were $55.6 million in total unrecognized compensation costs related to restricted stock and restricted stock units. These costs are expected to be recognized over a weighted average period of 2.0 years.

19. INCOME TAXES

The Company records income tax expense during interim periods based on the best estimate of the full year’s tax rate as adjusted for discrete items, if any, that are taken into account in the relevant interim period.  Each quarter, the Company updates its estimate of the annual effective tax rate and any change in the estimated rate is recorded on a cumulative basis.  

The effective tax rate from continuing operations was 43.1% and 39.9% for the three months ended September 30, 2017 and 2016, respectively. The increase in the effective tax rate for the three months ended September 30, 2017 against the comparable period in the prior year was primarily due to a re-measurement of our deferred tax assets and liabilities as a result of a 1.75% corporate income tax rate increase in Illinois enacted on July 6, 2017.

The effective tax rate from continuing operations was 37.7% and 39.3% for the nine months ended September 30, 2017 and 2016, respectively. The decrease in the effective tax rate for the nine months ended September 30, 2017 against the comparable period in the prior year was primarily due to discrete events during the nine-month period, mainly the re-measurement of tax reserves and excess tax benefits associated with the exercise and vesting of stock-based compensation.

20. NET INCOME PER COMMON SHARE

The computation of basic net income allocated to common stockholders is calculated by reducing net income for the period by dividends paid or declared and undistributed net income for the period that are allocated to participating securities to arrive at net income allocated to common stockholders. Net income allocated to common stockholders is divided by the weighted average number of common shares outstanding during the period to determine net income per share allocated to common stockholders.

The computation of diluted earnings per share is calculated by dividing net income allocated to common stockholders by the sum of the weighted average number of common shares outstanding plus all additional common shares that would have been outstanding if the potentially dilutive common shares had been issued. The dilutive effect is calculated using the more dilutive of the two-class or treasury stock method.

Additionally, the change in the redemption value for the noncontrolling interest reduces net income allocated to common shareholders.

31

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

The following table reconciles net income allocated to common stockholders and the number of shares used to calculate the basic and diluted net income per common share for the three and nine months ended September 30, 2017 and 2016:

	Three Months Ended September 30,						Nine Months Ended September 30,
(in millions, except per share amounts)	2017			2016			2017			2016
Basic EPS Numerator:
Net Income	$	60.3		$	40.5		$	143.5		$	140.6
Loss attributable to noncontrolling interest	0.2			0.3			0.8			0.8
Net Income Excluding Noncontrolling Interest	60.5			40.8			144.3			141.4
Change in redemption value of noncontrolling interest	(0.2		)	(0.3		)	(0.8		)	(0.8		)
Earnings allocated to participating securities	(0.6		)	(0.2		)	(1.4		)	(0.6		)
Net Income Allocated to Common Stockholders	$	59.7		$	40.3		$	142.1		$	140.0
Basic EPS Denominator:
Weighted average shares outstanding	112.3			81.3			105.5			81.5
Basic Net Income Per Common Share	$	0.53		$	0.50		$	1.35		$	1.72
Diluted EPS Numerator:
Net Income	$	60.3		$	40.5		$	143.5		$	140.6
Loss attributable to noncontrolling interest	0.2			0.3			0.8			0.8
Net Income Excluding Noncontrolling Interest	60.5			40.8			144.3			141.4
Change in redemption value of noncontrolling interest	(0.2		)	(0.3		)	(0.8		)	(0.8		)
Earnings allocated to participating securities	(0.6		)	(0.2		)	(1.4		)	(0.6		)
Net Income Allocated to Common Stockholders	$	59.7		$	40.3		$	142.1		$	140.0
Diluted EPS Denominator:
Weighted average shares outstanding	112.3			81.3			105.5			81.5
Dilutive common shares issued under stock program	0.3			—			0.3			—
Total Dilutive Weighted Average Shares	112.6			81.3			105.8			$	81.5
Diluted Net Income Per Common Share	$	0.53		$	0.50		$	1.34		$	1.72

For the periods presented, the Company did not have shares of stock-based compensation that would have an anti-dilutive effect on the computation of diluted net income per common share.

21. COMMITMENTS AND CONTINGENCIES

Legal Proceedings

As of September 30, 2017, the Company was subject to the various legal proceedings and claims discussed below, as well as certain other legal proceedings and claims that have not been fully resolved and that have arisen in the ordinary course of business.

The Company reviews its legal proceedings and claims, regulatory reviews and inspections and other legal proceedings on an ongoing basis and follows appropriate accounting guidance when making accrual and disclosure decisions. The Company establishes accruals for those contingencies where the incurrence of a loss is probable and can be reasonably estimated, and the Company discloses the amount accrued and the amount of a reasonably possible loss in excess of the amount accrued, if such disclosure is necessary for our financial statements to not be misleading. The Company does not record liabilities when the likelihood that the liability has been incurred is probable, but the amount cannot be reasonably estimated, or when the liability is believed to be only reasonably possible or remote. The Company's assessment of whether a loss is reasonably possible or probable is based on its assessment of the ultimate outcome of the matter following all appeals.

As of September 30, 2017, the Company does not believe that there is a reasonable possibility that any material loss exceeding the amounts already recognized for these reviews, inspections or other legal proceedings, if any, has been incurred. While the consequences of certain unresolved proceedings are not presently determinable, the outcome of any litigation is inherently uncertain and an adverse outcome from certain matters could have a material effect on our earnings in any given

32

Cboe Global Markets, Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

reporting period. However, in the opinion of management, the ultimate liability is not expected to have a material effect on our financial position, liquidity or capital resources.

There have been no material changes during the period covered by this Form 10-Q from the legal proceedings disclosures in our Annual Report on Form 10-K for the year ended December 31, 2016.

Contractual Obligations

The Company currently leases office space, data centers and remote network operations centers, with lease terms remaining ranging from three months to one hundred months as of September 30, 2017. Total rent expense related to these lease obligations, reflected in technology support services and facilities costs line items on the condensed consolidated statements of income, for the three months ended September 30, 2017 and 2016 were $2.2 million and $0.4 million, respectively, and $5.7 million and $1.0 million, for the nine months ended September 30, 2017 and 2016, respectively.

22. SUBSEQUENT EVENTS

On October 27, 2017, the Company announced that its board of directors declared a quarterly cash dividend of $0.27 per share. The dividend is payable December 15, 2017 to stockholders of record at the close of business on December 1, 2017.

There have been no additional subsequent events that would require disclosure in, or adjustment to, the condensed consolidated financial statements as of and for the nine months ended September 30, 2017.

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

The following discussion should be read in conjunction with the accompanying unaudited condensed consolidated financial statements and the notes thereto, included in Item 1 in this Quarterly Report on Form 10-Q, and the audited consolidated financial statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016, and as contained in that report, the information under the heading “Management’s Discussion and Analysis of Financial Condition and Results of Operations.” This discussion contains forward-looking information.  Please see“Forward-Looking Statements” for a discussion of the uncertainties, risks and assumptions associated with these statements.

Overview

Cboe Global Markets, Inc. is one of the world’s largest exchange holding companies, offering cutting-edge trading and investment solutions to investors around the world. The company is committed to relentless innovation, connecting global markets with world-class technology, and providing seamless solutions that enhance the customer experience. 

Cboe offers trading across a diverse range of products in multiple asset classes and geographies, including options, futures, U.S. and European equities, exchange-traded products (ETPs), global foreign exchange (FX) and multi-asset volatility products based on the VIX, the world’s barometer for equity market volatility.

Cboe’s trading venues include the largest options exchange in the U.S. by volume and the largest stock exchange by value traded in Europe.  In addition, the Company is the second-largest stock exchange operator in the U.S. by volume and a leading market globally for ETP trading.

The Company is headquartered in Chicago with offices in Kansas City, New York, London, San Francisco, Singapore, Hong Kong, and Ecuador. 

In October 2017, the Company changed its legal name from CBOE Holdings, Inc. to Cboe Global Markets, Inc.  The amendment to effect the name change was filed and became effective with the State of Delaware on October 16, 2017.

On February 28, 2017, pursuant to the Agreement and Plan of Merger, dated as of September 25, 2016, Cboe acquired Bats Global Markets, Inc. The three months ended September 30, 2017 includes financial results for Bats for the entire period. The nine months ended September 30, 2017 includes financial results for Bats for the period from March 1, 2017 through September 30, 2017, respectively.

Components of Revenues

Transaction Fees

Transaction fees represent fees charged by the Company for the performance obligation of executing a trade on its markets. These fees can be variable based on trade volume tiered discounts, however as all tiered discounts are calculated monthly, the actual discount is recorded on a monthly basis. Transaction fees, as well as any tiered volume discounts, are calculated and billed monthly in accordance with the Company’s published fee schedules. Transaction fees are recognized across all segments. The Company also pays liquidity payments to customers based on its published fee schedules. The Company uses these payments to improve the liquidity on its markets and therefore recognizes those payments as a cost of revenue.

Access Fees

Access fees represent fees assessed for the opportunity to trade, including fees for trading-related functionality across all segments. They are billed monthly in accordance with the Company’s published fee schedules and recognized on a monthly basis when the performance obligation is met. There is no remaining performance obligation after revenue is recognized.

Exchange Services and Other Fees

To facilitate trading, the Company offers technology services, terminal and other equipment rights, maintenance services, trading floor space and telecommunications services. Trading floor and equipment rights are generally on a month-to-month basis. Facilities, systems services and other fees are generally monthly fee-based, although certain services are influenced by trading volume or other defined metrics, others are based solely on demand. All fees associated with the trading floor are recognized in the Options segment.

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Market Data Fees

Market data fees represent the fees from the U.S. tape plans and fees from customers for proprietary market data. Fees from the U.S. tape plans are collected monthly based on published fee schedules and distributed quarterly to the U.S. exchanges based on a known formula using trading and/or quoting activity. A contract around proprietary market data is entered into and charged on a monthly basis in accordance with the Company’s published fee schedules as the service is provided. Both types of market data are satisfied over time, and revenue is recognized on a monthly basis as the customer receives and consumes the benefit as the Company provides the data. U.S. tape plan market data is recognized in the U.S. Equities and Options segments. Proprietary market data fees are recognized across all segments.

Regulatory Fees

Regulatory fees primarily represent fees collected by the Company to cover the Section 31 fees charged to the Exchanges by the SEC. Consistent with industry practice, the fees charged to customers are based on the fee set by the SEC per notional value of the transaction executed on the Company’s markets and calculated and billed monthly. These fees are recognized in the U.S. Equities and Options segments and as the exchanges are responsible for the ultimate payment to the SEC, the exchanges are considered the principals in these transactions. Regulatory fees also include the options regulatory fee (ORF) which supports the Company’s regulatory oversight function in the Options segment.

Other Revenue

Other revenue primarily includes among other items, revenue from various licensing agreements, all fees related to the trade reporting facility operated in the European Equities segment, and revenue associated with advertisements through the Company’s website.

Components of Cost of Revenues

Liquidity Payments

Liquidity payments are directly correlated to the volume of securities traded on our markets. As mentioned above, we record the liquidity rebate paid to market participants providing liquidity, in the case of C2, BZX, EDGX and Cboe Europe Equities, as cost of revenue. BYX and EDGA offer a pricing model pursuant to which we rebate liquidity takers for executing against an order resting on our book, which is also recorded as a cost of revenue.

Routing and clearing

Various rules require that U.S. options and cash equities executions occur at the National Best Bid/Offer (NBBO) displayed by any exchange.  Linkage order routing consists of cost incurred to provide a service whereby Cboe equity and options exchanges deliver orders to other execution venues when there is a potential for obtaining a better execution price or when instructed to directly route an order to another venue by the order provider. The service affords exchange order flow providers an opportunity to obtain the best available execution price and may also result in cost benefits to those clients.  Such an offering improves our competitive position and provides an opportunity to attract orders which would otherwise bypass our exchanges. We utilize third-party brokers or our broker-dealer, Trading, to facilitate such delivery.

Section 31 Fees

Exchanges under the authority of the SEC (Cboe Options, C2, BZX, BYX, EDGX and EDGA) are assessed fees pursuant to the Exchange Act designed to recover the costs to the U.S. government of supervision and regulation of securities markets and securities professionals. We treat these fees as a pass-through charge to customers executing eligible listed cash equities and listed equity options trades. Accordingly, we recognize the amount that we are charged under Section 31 as a cost of revenues and the corresponding amount that we charge our customers as regulatory transaction fees revenue. Since the regulatory transaction fees recorded in revenues are equal to the Section 31 fees recorded in cost of revenues, there is no impact on our operating income. CFE, Cboe Europe Equities and Cboe FX are not U.S. national securities exchanges, and accordingly do not pay Section 31 fees.

Royalty Fees

Royalty fees primarily consist of license fees paid by us for the use of underlying indexes in our proprietary products usually based on contracts traded. The Company has licenses with the owners of the S&P 500 Index, S&P 100 Index and certain other S&P indexes, the DJIA, MSCI, FTSE Russell indexes and certain other index products. This category also includes fees related to the dissemination of market data related to S&P indexes.

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Components of Operating Expenses

Compensation and Benefits

Compensation and benefits represent our largest expense category and tend to be driven by both our staffing requirements and the general dynamics of the employment market. Stock-based compensation is a non-cash expense related to equity awards. Stock-based compensation can vary depending on the quantity and fair value of the award on the date of grant and the related service period.

Depreciation and Amortization

Depreciation and amortization expense results from the depreciation of long-lived assets purchased and the amortization of purchased and internally developed software, and the amortization of intangible assets.

Technology Support Services

Technology support services expense consists primarily of costs related to the maintenance of computer equipment supporting our system architecture, circuits supporting our wide area network, support for production software, fees paid to information vendors for displaying data and off-site system hosting fees.

Professional Fees and Outside Services

Professional fees and outside services consist primarily of consulting services, which include: the supplementation of staff for activities primarily related to systems development and maintenance, legal, regulatory and audit, and tax advisory services.

Travel and Promotional Expenses

Travel and promotional expenses primarily consist of advertising, costs for special events, sponsorship of industry conferences, options education seminars and travel-related expenses.

Facilities Costs

Facilities costs primarily consist of expenses related to owned and leased properties including rent, maintenance, utilities, real estate taxes and telecommunications costs.

Acquisition-Related Costs

Acquisition-related costs relate to acquisitions and other strategic opportunities, including the Merger. The acquisition-related transaction costs include fees for investment banking advisors, lawyers, accountants, tax advisors, public relations firms, severance, write-offs of obsolete systems and other external costs directly related to the mergers and acquisitions.

Other Expenses

Other expenses represent costs necessary to support our operations that are not already included in the above categories.

Other Income (Expense)

Income and expenses incurred through activities outside of our core operations are considered non-operating and are classified as other income/(expense). These activities primarily include interest earned on the investing of excess cash, interest expense related to outstanding debt facilities, dividend income and equity earnings or losses from our investments in other business ventures.

Business Segments

The Company previously operated as a single reportable business segment as of December 31, 2016. As a result of the Merger, beginning in 2017, the Company is reporting five segments: Options, U.S. Equities, Futures, European Equities, and Global FX. Segment performance is primarily based on operating income (loss). The Company has aggregated all of its corporate costs and eliminations, as well as other business ventures, within Corporate Items and Eliminations; however, operating expenses that relate to activities of a specific segment have been allocated to that segment. Our management allocates resources, assesses performance and manages our business according to these segments:

Options. Our Options segment includes listed market indexes (index options), mostly on an exclusive basis, as well as on non-exclusive "multiply-listed" options, such as options on the stocks of individual corporations (equity options) and options on other exchange-traded products (ETP options), such as exchange-traded funds (ETF options) and exchange-traded notes (ETN options) that occur on Cboe Options, C2, BZX and EDGX. It also includes the listed equity and ETP options routed transaction services that occur on Trading.

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U.S. Equities. Our U.S. Equities segment includes listed cash equities and ETP transaction services that occur on BZX, BYX, EDGX and EDGA. It also includes the listings business where ETPs and the Company are listed on BZX.

Futures. Our Futures segment includes trading of futures on the VIX Index and other products that occur on CFE, our all-electronic futures exchange.

European Equities. Our European Equities segment includes pan‑European listed equities transaction services, ETPs, exchange‑traded commodities, and international depository receipts that occur on our MTF, and a listing and trading venue on our RM, which together we refer to as Cboe Europe Equities. It also includes the listed cash equities and exchange-traded products routed transaction services that occur on Cboe Chi-X Europe, as well as the listings business where ETPs can be listed on Cboe Europe Equities.

Global FX. Our Global FX segment includes institutional FX trading services that occur on the Cboe FX platform, as well as non-deliverable forward FX transactions executed on Cboe SEF.

General Factors Affecting Results of Operations

In broad terms, our business performance is impacted by a number of drivers, including macroeconomic events affecting the risk and return of financial assets, investor sentiment, the regulatory environment for capital markets, geopolitical events, central bank policies and changing technology, particularly in the financial services industry. Our future revenues and net income will continue to be influenced by a number of domestic and international economic trends, including:

• trading volumes on our proprietary products such as the VIX options and futures and SPX options;

• trading volumes in listed cash equity securities and ETPs in both the U.S. and Europe, volumes in listed equity options, and volumes in institutional FX trading, all of which are driven primarily by overall macroeconomic conditions; 

• the demand for the U.S. tape plan market data distributed by the Securities Information Processors (SIPs), which determines the pool size of the industry market data revenue we receive based on our market share;

• the demand for information about, or access to, our markets, which is dependent on the products we trade, our importance as a liquidity center and the quality and pricing of our data and access services; 

• continuing pressure in transaction fee pricing due to intense competition in the United States and Europe; and

• regulatory changes relating to market structure, increased capital requirements or affecting certain types of instruments, transactions, pricing structures, capital market participants or reporting or compliance requirements, including any changes resulting from Brexit.

A number of significant structural, political and monetary issues continue to confront the global economy, and instability could return at any time, resulting in an increased level of market volatility, increased trading volumes and a return of uncertainty. In contrast, many of the largest customers of our transactional businesses continue to adapt their business models as they address the implementation of regulatory changes initiated following the global financial crisis.

Financial Summary

The comparability of our results of operations between reported periods is impacted by the acquisition of Bats on February 28, 2017. Operating results and other financial metrics for U.S. Equities, European Equities and Global FX represent activity for the seven months ended September 30, 2017. The following summarizes changes in financial performance for the three and nine months ended September 30, 2017 and 2016 and certain non-GAAP financial measures. These non-GAAP financials measures assist management in comparing our performance on a consistent basis for purposes of business decision making by removing the impact of certain items management believes do not reflect our underlying operations. Please see the footnotes below for additional information and reconciliations from our condensed consolidated financial statements.

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	Three Months Ended September 30,						Increase/			Percent		Nine Months Ended September 30,						Increase/			Percent
	2017			2016			(Decrease)			Change		2017			2016			(Decrease)			Change
	(in millions, except trading days, percentages and as noted below)											(in millions, except trading days, percentages and as noted below)
Total revenues	$	611.4		$	168.7		$	442.7		262.4	%	$	1,608.4		$	512.3		$	1,096.1		214.0	%
Total cost of revenues	341.7			32.5			309.2			951.4	%	878.4			88.9			789.5			888.1	%
Revenues less cost of revenues	269.7			136.2			133.5			98.0	%	730.0			423.4			306.6			72.4	%
Total operating expenses	150.4			70.4			80.0			113.6	%	466.8			200.1			266.7			133.3	%
Operating income	119.3			65.8			53.5			81.3	%	263.2			223.3			39.9			17.9	%
Income before income tax provision	105.9			67.4			38.5			57.1	%	230.3			231.7			(1.4		)	(0.6	)%
Income tax provision	45.6			26.9			18.7			69.5	%	86.8			91.1			(4.3		)	(4.7	)%
Net income	60.3			40.5			19.8			48.9	%	143.5			140.6			2.9			2.1	%
Net income allocated to common stockholders	$	59.7		$	40.3		$	19.4		48.1	%	$	142.1		$	140.0		$	2.1		1.5	%
Basic earnings per share	$	0.53		$	0.50		$	0.03		6.0	%	$	1.35		$	1.72		$	(0.37	)	(21.5	)%
Diluted earnings per share	0.53			0.50			0.03			6.0	%	1.34			1.72			(0.38		)	(22.1	)%
Organic net revenue (1)	157.1			136.2			20.9			15.3	%	463.3			423.4			39.9			9.4	%
EBITDA(2)	171.2			77.6			93.6			120.6	%	396.1			265.7			130.4			49.1	%
EBITDA margin(3)	63.5		%	57		%	6.5		%	*		54.3		%	62.8		%	(8.5		)%	*
Adjusted EBITDA(2)	$	180.9		$	85.0		$	95.9		112.8	%	$	485.5		$	269.7		$	215.8		80.0	%
Adjusted EBITDA margin(4)	67.1		%	62.4		%	4.7		%	*		66.5		%	63.7		%	2.8		%	*
Adjusted earnings(5)	$	100.1		$	47.2		$	52.9		112.1	%	$	270.3		$	145.6		$	124.7		85.6	%
Diluted weighted average shares outstanding	112.6			81.3			31.3			38.5	%	105.8			81.5			24.3			29.8	%
Diluted adjusted earnings per share	$	0.89		$	0.58		$	0.31		53.4	%	$	2.56		$	1.79		$	0.77		43.0	%
Options:
Average Daily Volume (ADV):
Total touched contracts	6.8			6.1			0.7			11.5	%	6.9			6.2			0.7			11.3	%
Market ADV	16.2			15.4			0.8			5.2	%	16.5			16.1			0.4			2.5	%
Index contract ADV	2.1			1.7			0.4			23.5	%	2.0			1.7			0.3			17.6	%
Trading days	63			64			(1		)	(1.6	)%	188			189			(1		)	(0.5	)%
U.S. Equities:
ADV:
Total touched shares ADV (in billions)	1.2			—			1.2			*		1.3			—			1.3			*
Market ADV (in billions)	6.1			—			6.1			*		6.5			—			6.5			*
Trading days	63			—			63			*		149			—			149			*
U.S. ETPs: launches (number of launches)	23			—			23			*		64			—			64			*
U.S. ETPs: listings (number of listings)	234			—			234			*		234			—			234			*
Futures:
ADV (in thousands)	331.1			243.6			87.5			35.9	%	311.1			239.8			71.3			29.7	%
Trading days	63			64			(1		)	(1.6	)%	188			189			(1		)	(0.5	)%
European Equities:
Average Daily Notional Value (ADNV):
Matched and touched ADNV (in billions)	€	8.7		€	—		€	8.7		*		€	9.6		€	—		€	9.6		*
Market ADNV (in billions)	€	41.1		€	—		€	41.1		*		€	45.2		€	—		€	45.2		*
Trading days	65			—			65			*		151			—			151			*
Average Euro/British pound exchange rate	£	0.898		£	0.848		£	0.050		5.9	%	£	0.873		£	0.800		£	0.073		9.1	%
Global FX:
ADNV (in billions)	$	29.0		$	—		$	29.0		*		$	28.7		$	—		$	28.7		*
Trading days	65			—			65			*		153			—			153			*
Market share:
Options	41.7		%	28.4		%	13.3		%	*		40.3		%	27.4		%	12.9		%	*
U.S. Equities	19.2		%	—		%	19.2		%	*		19.2		%	—		%	19.2		%	*
ETPs: launches	37.1		%	—		%	37.1		%	*		37.9		%	—		%	37.9		%	*
ETPs: listings	11.5		%	—		%	11.5		%	*		11.5		%	—		%	11.5		%	*

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European Equities	21.1		%	—		%	21.1		%	*		21.2		%	—		%	21.2		%	*
Net capture:
Total Options (revenue per contract)(6)	$	0.247		$	0.302		$	(0.055	)	(18.2	)%	$	0.245		$	0.325		$	(0.080	)	(24.6	)%
Multiply Listed Options	0.061			0.064			(0.003		)	(4.7	)%	0.060			0.083			(0.023		)	(27.7	)%
Index Options	0.669			0.707			(0.038		)	(5.4	)%	0.690			0.709			(0.019		)	(2.7	)%
U.S. Equities (net capture per one hundred touched shares)(7)	0.022			—			0.022			*		0.023			—			0.023			*
Futures	1.752			1.709			0.043			2.5	%	1.759			1.680			0.079			4.7	%
European Equities (net capture per matched notional value in basis points)(8)	0.168			—			0.168			*		0.164			—			0.164			*
Global FX (net capture per one million dollars traded) (9)	$	2.63		$	—		$	2.63		*		$	2.63		$	—		$	2.63		*
Average British pound/U.S. dollar exchange rate	$	1.309		$	1.313		$	(0.004	)	(0.3	)%	$	1.274		$	1.393		$	(0.119	)	(8.5	)%

*  Not meaningful

(1) Organic net revenue is defined as revenues less cost of revenues excluding revenues less cost of revenues of any acquisition for the quarter the business was acquired and the following year comparable quarter. Organic net revenue does not represent, and should not be considered as, an alternative to revenues less cost of revenues, or net revenue, as determined in accordance with GAAP. We have presented organic net revenue because we consider it an important supplemental measure of our performance and we use it as the basis for monitoring our operating financial performance before the effects of acquisitions. We also believe that it is frequently used by analysts, investors and other interested parties in the evaluation of companies. We believe that investors may find this non-GAAP measure useful in evaluating our performance compared to that of peer companies in our industry. Other companies may calculate organic net revenue differently than we do. Organic net revenue has limitations as an analytical tool, and you should not consider it in isolation or as a substitute for analysis of our results as reported under GAAP.

The following is a reconciliation of revenues less cost of revenues to organic net revenue (in millions):

	Three Months Ended September 30,					Nine Months Ended September 30,
	2017			2016		2017			2016
Revenues less cost of revenues	$	269.7		$	136.2	$	730.0		$	423.4
Recent acquisitions:
Bats revenues less cost of revenues (since acquisition)	$	(112.6	)	$	—	$	(266.7	)	$	—
Organic net revenue	$	157.1		$	136.2	$	463.3		$	423.4

(2) EBITDA is defined as income before interest, income taxes, depreciation and amortization. Adjusted EBITDA is defined as EBITDA before acquisition-related costs, accelerated stock-based compensation, and a legal settlement. EBITDA and adjusted EBITDA do not represent, and should not be considered as, alternatives to net income or cash flows from operations, each as determined in accordance with GAAP. We have presented EBITDA and adjusted EBITDA because we consider them important supplemental measures of our performance and believe that they are frequently used by analysts, investors and other interested parties in the evaluation of companies. In addition, we use adjusted EBITDA as a measure of operating performance for preparation of our forecasts, evaluating our leverage ratio for the debt to earnings covenant included in our outstanding credit facility. Other companies may calculate EBITDA and adjusted EBITDA differently than we do. EBITDA and adjusted EBITDA have limitations as analytical tools, and you should not consider them in isolation or as substitutes for analysis of our results as reported under GAAP.

The following tables are reconciliations of net income allocated to common stockholders to EBITDA and adjusted EBITDA (in millions):

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	Three Months Ended September 30, 2017
	Options		U.S. Equities		Futures		European Equities		Global FX			Corporate Items and Eliminations			Total
Net income (loss) allocated to common stockholders	$	60.6	$	29.6	$	35.1	$	2.9	$	(3.5	)	$	(65.0	)	$	59.7
Interest	—		—		—		—		—			10.5			10.5
Income tax provision	—		—		—		—		—			45.6			45.6
Depreciation and amortization	14.0		23.9		0.4		7.7		9.1			0.3			55.4
EBITDA	74.6		53.5		35.5		10.6		5.6			(8.6		)	171.2
Acquisition-related costs	—		—		—		—		—			5.5			5.5
Change in contingent consideration	—		—		—		—		0.4			—			0.4
Provision for uncollectable convertible notes receivable	3.8		—		—		—		—			—			3.8
Adjusted EBITDA	$	78.4	$	53.5	$	35.5	$	10.6	$	6.0		$	(3.1	)	$	180.9

	Three Months Ended September 30, 2016
	Options		U.S. Equities		Futures		European Equities		Global FX		Corporate Items and Eliminations			Total
Net income (loss) allocated to common stockholders	$	17.2	$	—	$	25.5	$	—	$	—	$	(2.4	)	$	40.3
Interest	0.3		—		—		—		—		(0.1		)	0.2
Income tax provision	26.9		—		—		—		—		—			26.9
Depreciation and amortization	9.3		—		0.6		—		—		0.3			10.2
EBITDA	53.7		—		26.1		—		—		(2.2		)	77.6
Acquisition-related costs	—		—		—		—		—		8.6			8.6
Gain on settlement of contingent consideration	—		—		—		—		—		(1.4		)	(1.4		)
Accelerated stock-based compensation	—		—		—		—		—		0.2			0.2
Adjusted EBITDA	$	53.7	$	—	$	26.1	$	—	$	—	$	5.2		$	85.0

	Nine Months Ended September 30, 2017
	Options		U.S. Equities		Futures		European Equities		Global FX			Corporate Items and Eliminations			Total
Net income (loss) allocated to common stockholders	$	149.1	$	74.2	$	94.4	$	5.5	$	(8.9	)	$	(172.2	)	$	142.1
Interest	—		—		—		—		—			30.9			30.9
Income tax provision	37.7		0.9		—		2.5		0.1			45.6			86.8
Depreciation and amortization	39.1		56.4		1.1		17.6		21.2			0.9			136.3
EBITDA	225.9		131.5		95.5		25.6		12.4			(94.8		)	396.1
Acquisition-related costs	—		—		—		—		—			75.4			75.4
Change in contingent consideration	—		—		—		—		1.1			—			1.1
Provision for uncollectable convertible notes receivable	3.8		—		—		—		—			—			3.8
Accelerated stock-based compensation	—		—		—		—		—			9.1			9.1
Adjusted EBITDA	$	229.7	$	131.5	$	95.5	$	25.6	$	13.5		$	(10.3	)	$	485.5

40

	Nine Months Ended September 30, 2016
	Options		U.S. Equities		Futures		European Equities		Global FX		Corporate Items and Eliminations			Total
Net income (loss) allocated to common stockholders	$	70.2	$	—	$	72.2	$	—	$	—	$	(2.4	)	$	140.0
Interest	0.3		—		—		—		—		(0.1		)	0.2
Income tax provision	91.1		—		—		—		—		—			91.1
Depreciation and amortization	31.0		—		2.4		—		—		1.0			34.4
EBITDA	192.6		—		74.6		—		—		(1.5		)	265.7
Acquisition-related costs	—						—		—		9.3			9.3
Legal settlement	—		—		—		—		—		(5.5		)	(5.5		)
Assessment of computer-based lease taxes for prior period use	—		—		—		—		—		0.3			0.3
Accelerated stock-based compensation	—		—		—		—		—		1.3			1.3
Gain on settlement of contingent consideration	—		—		—		—		—		(1.4		)	(1.4		)
Adjusted EBITDA	$	192.6	$	—	$	74.6	$	—	$	—	$	2.5		$	269.7

(3) EBITDA margin represents EBITDA divided by revenues less cost of revenues.

(4) Adjusted EBITDA margin represents adjusted EBITDA divided by revenues less cost of revenues.

(5) Adjusted earnings is defined as net income adjusted for amortization of purchased intangibles, acquisition-related costs, legal settlements, and accelerated stock-based compensation, net of the income tax effects of these adjustments. Adjusted earnings does not represent, and should not be considered as, an alternative to net income, as determined in accordance with GAAP. We have presented adjusted earnings because we consider it an important supplemental measure of our performance and we use it as the basis for monitoring our own core operating financial performance relative to other operators of exchanges. We also believe that it is frequently used by analysts, investors and other interested parties in the evaluation of companies. We believe that investors may find this non-GAAP measure useful in evaluating our performance compared to that of peer companies in our industry. Other companies may calculate adjusted earnings differently than we do. Adjusted earnings has limitations as an analytical tool, and you should not consider it in isolation or as a substitute for analysis of our results as reported under GAAP.

The following is a reconciliation of net income to adjusted earnings (in millions):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Net income allocated to common stockholders	$	59.7		$	40.3		$	142.1		$	140.0
Amortization	42.6			0.3			99.6			0.9
Acquisition-related costs	5.5			8.6			75.4			9.3
Provision for uncollectable convertible notes receivable	3.8			—			3.8			—
Debt issuance cost	—			—			0.9			—
Assessment of computer-based lease taxes	—			—			—			0.3
Acceleration of stock based compensation	—			—			9.1			—
Other compensation related items	—			0.2			—			1.3
Legal settlement	—			—			—			(5.5		)
Interest and other borrowing costs	—			0.2			4.3			0.2
Change in contingent consideration	0.4			—			1.1			—
Gain on settlement of contingent consideration	—			(1.4		)	—			(1.4		)
Change in redemption value of noncontrolling interest	0.2			0.3			0.8			0.8
Tax effects of adjustments	(19.1		)	(1.3		)	(73.1		)	(0.3		)
Re-measurement of deferred tax assets and liabilities as a result of corporate rate increases in Illinois	7.4			—			7.4			—
Net income allocated to participating securities	(0.4		)	—			(1.1		)	—
Adjusted earnings	$	100.1		$	47.2		$	270.3		$	145.6

(6) Revenue per contract represents transaction fees less liquidity payments and routing and clearing costs

divided by total touched contracts.

41

(7) Net capture per one hundred touched shares refers to transaction fees less liquidity payments and routing and clearing costs divided by the product of one-hundredth ADV of touched shares on BZX, BYX, EDGX and EDGA and the number of trading days for the period.

(8) Net capture per matched notional value refers to transaction fees less liquidity payments in British pounds divided by the product of ADNV in British pounds of shares matched on Cboe Europe Equities and the number of trading days for the period.

(9) Net capture per one million dollars traded refers to transaction fees less liquidity payments, if any, divided by the product of one-thousandth of ADNV traded on the Cboe FX market and the number of trading days, divided by two, which represents the buyer and seller that are both charged on the transaction for the period.

Revenues

Total revenues increased in the three and nine months ended September 30, 2017, primarily as a result of our acquisition of Bats that contributed $411.6 million and $1,017.4 million, respectively.

The following summarizes changes in revenues for the three and nine months ended September 30, 2017, compared to the three and nine months ended September 30, 2016:

	Three Months Ended September 30,				Increase/ (Decrease)		Percent Change		Nine Months Ended September 30,				Increase/ (Decrease)		Percent Change
	2017		2016						2017		2016
	(in millions, except percentages)								(in millions, except percentages)
Transaction fees	$	423.3	$	124.5	$	298.8	240.0	%	$	1,133.6	$	378.3	$	755.3	199.7	%
Access fees	30.1		13.0		17.1		131.5	%	77.6		39.4		38.2		97.0	%
Exchange services and other fees	20.0		11.4		8.6		75.4	%	55.3		34.2		21.1		61.7	%
Market data fees	46.8		8.3		38.5		463.9	%	117.3		24.5		92.8		378.8	%
Regulatory fees	83.5		9.1		74.4		817.6	%	205.1		27.4		177.7		648.5	%
Other revenue	7.7		2.4		5.3		220.8	%	19.5		8.5		11.0		129.4	%
Total revenues	$	611.4	$	168.7	$	442.7	262.4	%	$	1,608.4	$	512.3	$	1,096.1	214.0	%

Transaction Fees

Transaction fees increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily driven by the acquisition of Bats that contributed $271.1 million and $689.3 million, respectively.  The remaining increase was primarily driven by increased ADV in index options of 23.5% for the three months ended September 30, 2017 and 17.6% in the nine months ended September 30, 2017. Also contributing to the increase was an increased futures ADV of 35.9% for the three months ended September 30, 2017 and 29.7% for the nine months ended September 30, 2017.

Access fees

Access fees increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily driven by the Bats acquisition that contributed $18.5 million and $42.4 million, respectively. This was offset by decreases driven by pricing decreases for market maker permits and floor broker permits effective in the first quarter of 2017.

Exchange services and other fees

Exchange services and other fees increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily driven by the Bats acquisition that contributed $7.5 million and $17.6 million, respectively.

Market Data Fees

Market data fees increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily due to the Bats acquisition that contributed $38.1 million and $90.2 million, respectively.

Regulatory Fees

Regulatory transaction fees increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily due to the acquisition of Bats that contributed $72.6 million and $170.7 million, respectively.

Other Revenue

Other revenue increased for the three and nine months ended September 30, 2017 compared to the same period in 2016 primarily due to the Bats acquisition that contributed $3.7 million and $7.2 million, respectively.

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Cost of Revenues

Cost of revenues increased in the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily due to the acquisition of Bats.

The following summarizes changes in cost of revenues for the three and nine months ended September 30, 2017 compared to the three months ended September 30, 2016:  

	Three Months Ended September 30,				Increase/ (Decrease)		Percent Change		Nine Months Ended September 30,				Increase/ (Decrease)		Percent Change
	2017		2016						2017		2016
	(in millions, except percentages)								(in millions, except percentages)
Liquidity payments	$	234.3	$	9.5	$	224.8	*		$	606.1	$	23.2	$	582.9	*
Routing and clearing	9.4		3.6		5.8		161.1	%	27.9		7.9		20.0		253.2	%
Section 31 fees	75.9		—		75.9		*		180.5		—		180.5		*
Royalty fees	22.1		19.4		2.7		13.9	%	63.9		57.8		6.1		10.6	%
Total cost of revenues	$	341.7	$	32.5	$	309.2	951.4	%	$	878.4	$	88.9	$	789.5	888.1	%

*Not meaningful

Liquidity Payments

Liquidity payments increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily driven by the Bats acquisition that contributed $219.3 million and $561.7 million, respectively.

Routing and Clearing

The increase in routing and clearing fees for the three and nine months ended September 30, 2017 compared to the same periods in 2016 was primarily driven by the Bats acquisition that contributed $7.7 million and $19.7 million, respectively.

Section 31 Fees

Section 31 fees increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily driven by the Bats acquisition that contributed $71.9 million and $169.0 million, respectively.

Royalty Fees

Royalty fees increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily due to higher trading volume in licensed products.

Revenues Less Cost of Revenues

Revenues less cost of revenues increased in the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily due to the acquisition of Bats.

The following tables summarize the components of revenues less cost of revenues for the three and nine months ended September 30, 2017, presented as a percentage of revenues less cost of revenues and compared to the three and nine months ended September 30, 2016:

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	Three Months Ended September 30,						Increase/			Percent		Nine Months Ended September 30,						Increase/			Percent
	2017			2016			(Decrease)			Change		2017			2016			(Decrease)			Change
	(in millions, except percentages)											(in millions, except percentages)
Transaction fees less liquidity payments and routing and clearing costs	$	179.6		$	111.4		$	68.2		61.2	%	$	499.6		$	347.2		$	152.4		43.9	%
Access fees	30.1			13.0			17.1			131.5	%	77.6			39.4			38.2			97.0	%
Exchange services and other fees	20.0			11.4			8.6			75.4	%	55.3			34.2			21.1			61.7	%
Market data fees	46.8			8.3			38.5			463.9	%	117.3			24.5			92.8			378.8	%
Regulatory fees, less Section 31 fees	7.6			9.1			(1.5		)	(16.5	)%	24.6			27.4			(2.8		)	(10.2	)%
Royalty fees	(22.1		)	(19.4		)	(2.7		)	13.9	%	(63.9		)	(57.8		)	(6.1		)	10.6	%
Other	7.7			2.4			5.3			220.8	%	19.5			8.5			11.0			129.4	%
Revenues less cost of revenues	$	269.7		$	136.2		$	133.5		98.0	%	$	730.0		$	423.4		$	306.6		72.4	%

Transaction Fees Less Liquidity Payments and Routing and Clearing Costs

Transaction fees less liquidity payments and routing and clearing costs increased in the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily driven by the acquisition of Bats that contributed $44.2 million and $107.9 million, respectively.  The remaining increase was primarily due to higher trading volumes in index options and futures in both the three and nine months ended September 30, 2017.

Access Fees

Access fees increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily driven by the Bats acquisition that contributed $18.5 million and $42.4 million, respectively. This was partially offset by decreases driven by pricing decreases for market maker permits and floor broker permits effective in the first quarter of 2017.

Exchange services and other fees

Exchange services and other fees increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily driven by the Bats acquisition that contributed $7.5 million and $17.6 million, respectively.

Market Data Fees

Market data fees increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily due to the Bats acquisition that contributed $38.1 million and $90.2 million, respectively.

Regulatory Fees, less Section 31 Fees

Regulatory fees decreased in the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily due to a decrease in options regulatory fees reflecting lower regulatory costs to oversee the options markets.

Royalty Fees

Royalty fees increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily due to higher trading volume in licensed products.

Other

Other revenue increased in the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily due the Bats acquisition that contributed $3.6 million and $6.8 million, respectively.

Operating Expenses

Total operating expenses increased 114% for the three months ended September 30, 2017 compared to the three months ended September 30, 2016 primarily due to incremental operating expenses of Bats in 2017. For the nine months ended September 30, 2017 compared to the nine months ended September 30, 2016 acquisition-related costs of $75.4 million for the Bats acquisition drove the increase in operating expenses. Incremental operating expenses of Bats from the acquisition date to September 30, 2017 also contributed to the increase primarily in depreciation and amortization and compensation and benefits. The following summarizes changes in operating expenses for the three and nine months ended September 30, 2017, compared to the three and nine months ended September 30, 2016:

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	Three Months Ended September 30,				Increase/			Percent		Nine Months Ended September 30,				Increase/		Percent
	2017		2016		(Decrease)			Change		2017		2016		(Decrease)		Change
	(in millions, except percentages)									(in millions, except percentages)
Operating expenses:
Compensation and benefits	$	50.4	$	28.3	$	22.1		78.1	%	$	148.2	$	83.9	$	64.3	76.6	%
Depreciation and amortization	55.4		10.2		45.2			443.1	%	136.3		34.4		101.9		296.2	%
Technology support services	11.4		5.6		5.8			103.6	%	30.9		17.0		13.9		81.8	%
Professional fees and outside services	17.6		12.7		4.9			38.6	%	48.9		41.0		7.9		19.3	%
Travel and promotional expenses	4.5		2.6		1.9			73.1	%	12.0		7.6		4.4		57.9	%
Facilities costs	2.9		1.3		1.6			123.1	%	7.7		4.2		3.5		83.3	%
Acquisition-related costs	5.5		8.6		(3.1		)	(36.0	)%	75.4		8.6		66.8		776.7	%
Change in contingent consideration	0.4		—		0.4			*		1.1		—		1.1		*
Other expenses	2.3		1.1		1.2			109.1	%	6.3		3.4		2.9		85.3	%
Total operating expenses	$	150.4	$	70.4	$	80.0		113.6	%	$	466.8	$	200.1	$	266.7	133.3	%

* Not meaningful

Compensation and Benefits

Compensation and benefits increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily driven by the incremental costs for additional employees from the Bats acquisition of $22.0 million and $51.4 million, respectively. The remainder of the increase during the nine month period was due to the acceleration of stock-based compensation due to a change in the vesting terms in the first quarter of 2017.

Depreciation and Amortization

Depreciation and amortization increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily driven by amortization of purchased intangible assets acquired from the Bats acquisition of $45.5 million and $106.6 million, respectively.

Technology Support Services

Technology support services costs increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily driven by incremental expense from the acquisition of Bats that contributed $5.9 million and $14.0 million, respectively.

Professional Fees and Outside Services

Professional and outside services fees increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily driven by incremental expense from the acquisition of Bats that contributed $4.6 million and $9.8 million, respectively.

Acquisition-related costs

Acquisition-related costs increased for the three and nine months ended September 30, 2017 compared to the same periods in 2016 primarily driven by our acquisition of Bats. Acquisition-related costs include fees for investment banking advisors, lawyers, accountants, tax advisors, public relations firms, severance and retention costs, impairment of capitalized software and other external costs directly related to the mergers and acquisitions.

Operating Income

As a result of the items above, operating income for the three months ended September 30, 2017 was $119.3 million compared to $65.8 million for same period in 2016. Operating income for the nine months ended September 30, 2017 was $263.2 million compared to $223.3 million for same period in 2016.

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Interest Expense, Net

Net interest expense increased in the three and nine months ended September 30, 2017 primarily due to $11.0 million and $32.0 million, respectively, in interest expense related to the financing of the Bats acquisition. To finance the cash required for the acquisition, we entered into a $1.0 billion term loan agreement and issued $650 million in aggregate principal amount of 3.650% senior notes. In June 2017, we issued $300 million in aggregate principal amount of 1.950% senior notes and used the net proceeds to pay down a portion of the term loan. See Note 11, Debt, to the condensed consolidated financial statements for a discussion of debt agreements.

Other (Expense) Income

Other (expense) income increased for the three and nine months ended September 30, 2017 compared to the three and nine months ended September 30, 2016 driven by the provision for uncollectable convertible notes receivable of $3.8 million related to our investment in Tradelegs, LLC.

Income Before Income Tax Provision

As a result of the above, income before income tax provision for the three months ended September 30, 2017 was $105.9 million compared to $67.4 million for the same period in 2016, an increase of $38.5 million.  For the nine months ended September 30, 2017 income before income tax provision was $230.3 million compared to $231.7 million for the same period in 2016, a decrease of $1.4 million.

Income Tax Provision 

For the three months ended September 30, 2017, the income tax provision was $45.6 million compared with $26.9 million for the same period in 2016. The effective tax rate for the three months ended September 30, 2017 was 43.1% compared to 39.9% for the three months ended September 30, 2016.  The increase in the effective tax rate for the three months ended September 30, 2017 against the comparable period in the prior year was primarily due to a re-measurement of our deferred tax assets and liabilities as a result of a 1.75% corporate income tax rate increase in Illinois enacted on July 6, 2017.

For the nine months ended September 30, 2017, the income tax provision was $86.8 million compared with $91.1 million for the same period in 2016. The effective tax rate for the nine months ended September 30, 2017 was 37.7% compared to 39.3% for the nine months ended September 30, 2016.  The decrease in the effective tax rate for the nine months ended September 30, 2017 against the comparable period in the prior year was primarily due to discrete events during the nine-month period, mainly the re-measurement of tax reserves and excess tax benefits associated with the exercise and vesting of stock-based compensation.

Net Income 

As a result of the items above, net income for the three months ended September 30, 2017 was $60.3 million compared to $40.5 million for the three months ended September 30, 2016, an increase of $19.8 million. 

As a result of the items above, net income for the nine months ended September 30, 2017 was $143.5 million compared to $140.6 million for the nine months ended September 30, 2016, an increase of $2.9 million. 

Segment Operating Results

We report results from our five segments: Options, U.S. Equities, Futures, European Equities, and Global FX. Segment performance is primarily based on operating income (loss). We have aggregated all corporate costs, acquisition-related costs, as well as other business ventures, within the Corporate Items and Eliminations as those activities should not be used to evaluate a segment's operating performance. All operating expenses that relate to activities of a specific segment have been allocated to that segment. 

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The following summarizes our total revenues by segment (in millions, except percentages):

							Percentage of Total Revenues										Percentage of Total Revenues
	Three Months Ended September 30,				Percent Change		Three Months Ended September 30,				Nine Months Ended September 30,				Percent Change		Nine Months Ended September 30,
	2017		2016				2017		2016		2017		2016				2017		2016
Options	$	224.8	$	139.2	61.5	%	36.8	%	82.5	%	$	651.0	$	426.8	52.5	%	40.5	%	83.3	%
U.S. Equities	308.5		—		*		50.5	%	—	%	759.8		—		*		47.3	%	—	%
Futures	40.3		29.5		36.6	%	6.6	%	17.5	%	107.7		85.5		26.0	%	6.7	%	16.7	%
European Equities	26.3		—		*		4.3	%	—	%	63.2		—		*		3.9	%	—	%
Global FX	11.3		—		*		1.8	%	—	%	26.2		—		*		1.6	%	—	%
Corporate Items and Eliminations	0.2		—		*		—	%	—	%	0.5		—		*		—	%	—	%
Total revenues	$	611.4	$	168.7	262.4	%	100.0	%	100.0	%	$	1,608.4	$	512.3	214.0	%	100.0	%	100.0	%

*  Not meaningful

Options

The following summarizes revenues less cost of revenues, operating expenses, operating income, EBITDA, and EBITDA margin for our Options segment:

									Percentage of Total Revenues												Percentage of Total Revenues
	Three Months Ended September 30,						Percent		Three Months Ended September 30,				Nine Months Ended September 30,						Percent		Nine Months Ended September 30,
	2017			2016			Change		2017		2016		2017			2016			Change		2017		2016
	(in millions, except percentages)
Revenues less cost of revenues	$	130.7		$	107.8		21.2	%	21.4	%	63.9	%	$	386.3		$	341.1		13.3	%	24.0	%	66.5	%
Operating expenses	66.4			65.2			1.8	%	10.9	%	38.6	%	195.8			182.6			7.2%		12.2	%	35.6	%
Operating income	$	64.3		$	42.6		50.9	%	10.5	%	25.3	%	$	190.5		$	158.5		20.2	%	11.8	%	30.9	%
EBITDA (1)	$	74.6		$	53.7		38.9	%	12.1	%	31.8	%	$	225.9		$	192.6		17.3	%	14.0	%	37.6	%
EBITDA margin (2)	57.1		%	49.8		%	*		*		*		58.5		%	56.5		%	*		*		*

*  Not meaningful

(1) See footnote (1) to the table under “Financial Summary” above for a reconciliation of net income to EBITDA, and management’s reasons for using such non-GAAP measures.

(2) EBITDA margin represents EBITDA divided by revenues less cost of revenues.

Revenues less cost of revenues increased $22.9 million for the three months ended September 30, 2017 compared to the three months ended September 30, 2016, primarily driven by the acquisition of Bats, which contributed $12.6 million and a 23.5% increase in index ADV partially offset by a 5.4% decrease in index options RPC and decreased Cboe Options and C2 access fees in the third quarter of 2017. For the three months ended September 30, 2017, the Options segment’s operating income increased $21.7 million compared to the three months ended September 30, 2016.

Revenues less cost of revenues increased $45.2 million for the nine months ended September 30, 2017, compared to the nine months ended September 30, 2016, primarily driven by the acquisition of Bats, which contributed $27.2 million and a 17.6% increase in index ADV partially offset by a 2.7% decrease in index options RPC.  For the nine months ended September 30, 2017, the Options segment’s operating income increased $32.0 million compared to the nine months ended September 30, 2016.

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U.S. Equities

The following summarizes revenues less cost of revenues, operating expenses, operating income, EBITDA, and EBIDTA margin for our U.S. Equities segment:

							Percentage of Total Revenues										Percentage of Total Revenues
	Three Months Ended September 30,					Percent	Three Months Ended September 30,				Nine Months Ended September 30,					Percent	Nine Months Ended September 30,
	2017			2016		Change	2017		2016		2017			2016		Change	2017		2016
	(in millions, except percentages)
Revenues less cost of revenues	$	70.2		$	—	*	11.5	%	—	%	$	170.1		$	—	*	10.6	%	—	%
Operating expenses	40.3			—		*	6.6	%	—	%	94.7			—		*	5.9	%	—	%
Operating income	$	29.9		$	—	*	4.9	%	—	%	$	75.4		$	—	*	4.7	%	—	%
EBITDA (1)	$	53.5		$	—	*	8.8	%	—	%	$	131.5		$	—	*	8.2	%	—	%
EBITDA margin (2)	76.2		%	*		*	*		*		77.3		%	*		*	*		*

*  Not meaningful

(1) See footnote (1) to the table under “Financial Summary” above for a reconciliation of net income to EBITDA, and management’s reasons for using such non-GAAP measures.

(2) EBITDA margin represents EBITDA divided by revenues less cost of revenues.

For the three and nine months ended September 30, 2017, U.S. Equities contributed revenues less costs of revenues of $70.2 million and $170.1 million, respectively, and operating income of $29.9 million and $75.4 million, respectively, resulting from our acquisition of Bats on February 28, 2017. 

Futures

The following summarizes revenues, operating expenses, operating income, EBITDA, and EBITDA margin for our Futures segment:

									Percentage of Total Revenues												Percentage of Total Revenues
	Three Months Ended September 30,						Percent		Three Months Ended September 30,				Nine Months Ended September 30,						Percent		Nine Months Ended September 30,
	2017			2016			Change		2017		2016		2017			2016			Change		2017		2016
	(in millions, except percentages)
Revenues less cost of revenues	$	38.9		$	28.4		37.0	%	6.4	%	16.8	%	103.9			82.3			26.2	%	6.5	%	16.1	%
Operating expenses	3.5			2.9			20.7	%	0.6	%	1.7	%	9.2			10.1			(8.9	)%	0.6	%	2.0	%
Operating income	$	35.4		$	25.5		38.8	%	5.8	%	15.1	%	$	94.7		$	72.2		31.2	%	5.9	%	14.1	%
EBITDA (1)	$	35.5		$	26.1		36.0	%	5.8	%	15.5	%	$	95.5		$	74.6		28.0	%	5.9	%	14.6	%
EBITDA margin (2)	91.3		%	91.9		%	*		*		*		91.9		%	90.6		%	*		*		*

*  Not meaningful

(1) See footnote (1) to the table under “Financial Summary” above for a reconciliation of net income to EBITDA, and management’s reasons for using such non-GAAP measures.

(2) EBITDA margin represents EBITDA divided by revenues less cost of revenues.

For the three months ended September 30, 2017 compared to the same period in 2016, the net revenue and operating income increased $10.5 million and $9.9 million, respectively, primarily driven by a 35.9% increase in ADV, from 244 thousand contracts per day in 2016 to 331 thousand contracts per day in 2017 and a 2.5% increase in revenue per contract.

48

For the nine months ended September 30, 2017 compared to the same period in 2016, the net revenue and operating income increased $21.6 million and $22.5 million, respectively, primarily driven by a 29.7% increase in ADV, from 240 thousand contracts per day in 2016 to 311 thousand contracts per day in 2017 and a 4.7% increase in revenue per contract.

European Equities

The following summarizes revenues less cost of revenues, operating expenses, operating income, EBITDA, and EBITDA margin for our European Equities segment:

							Percentage of Total Revenues										Percentage of Total Revenues
	Three Months Ended September 30,					Percent Change	Three Months Ended September 30,				Nine Months Ended September 30,					Percent Change	Nine Months Ended September 30,
	2017			2016			2017		2016		2017			2016			2017		2016
	(in millions, except percentages)
Revenues less cost of revenues	$	18.4		$	—	*	3.0	%	—	%	$	43.0		$	—	*	2.7	%	—	%
Operating expenses	15.7			—		*	2.6	%	—	%	35.2			—		*	2.2	%	—	%
Operating income	$	2.7		$	—	*	0.4	%	—	%	$	7.8		$	—	*	0.5	%	—	%
EBITDA (1)	$	10.6		$	—	*	1.7	%	—	%	$	25.6		$	—	*	1.6	%	—	%
EBITDA margin (2)	57.6		%	*		*	*		*		59.5		%	*		*	*		*

*  Not meaningful

(1) See footnote (1) to the table under “Financial Summary” above for a reconciliation of net income to EBITDA, and management’s reasons for using such non-GAAP measures.

(2) EBITDA margin represents EBITDA divided by revenues less cost of revenues.

For the three and nine months ended September 30, 2017, the European Equities segment contributed revenues less cost of revenues of $18.4 million and $43.0 million, respectively, and operating income of $2.7 million and $7.8 million, respectively, resulting from our acquisition of Bats on February 28, 2017.

Global FX

The following summarizes revenues less cost of revenues, operating expenses, operating income, EBITDA, and EBITDA margin for our Global FX segment:

							Percentage of Total Revenues										Percentage of Total Revenues
	Three Months Ended September 30,					Percent Change	Three Months Ended September 30,				Nine Months Ended September 30,					Percent	Nine Months Ended September 30,
	2017			2016			2017		2016		2017			2016		Change	2017		2016
	(in millions, except percentages)
Revenues less cost of revenues	$	11.3		$	—	*	1.8	%	—	%	$	26.2		$	—	*	1.6	%	—	%
Operating expenses	14.8			—		*	2.4	%	—	%	35.0			—		*	2.1	%	—	%
Operating (loss) income	$	(3.5	)	$	—	*	(0.6	)%	—	%	$	(8.8	)	$	—	*	(0.5	)%	—	%
EBITDA (1)	$	5.6		$	—	*	0.9	%	—	%	$	12.4		$	—	*	0.8	%	—	%
EBITDA margin (2)	49.6		%	*		*	*		*		47.3		%	*		*	*		*

*  Not meaningful

(1) See footnote (1) to the table under “Financial Summary” above for a reconciliation of net income to EBITDA and adjusted EBITDA, and management’s reasons for using such non-GAAP measures.

(2) EBITDA margin represents EBITDA divided by revenues less cost of revenues.

49

For the three and nine months ended September 30, 2017, the Global FX segment contributed revenues less cost of revenues of $11.3 million and $26.2 million, respectively, and an operating loss of $3.5 million and $8.8 million, respectively, resulting from our acquisition of Bats on February 28, 2017.

Seasonality

In the securities and FX industries, quarterly revenue fluctuations are common and are due primarily to seasonal variations in trading volumes, as well as competition and technological and regulatory changes. Our business may experience seasonal fluctuations, reflecting reduced trading activity.

Liquidity and Capital Resources

We expect our cash on hand at September 30, 2017 and other available resources to be sufficient to continue to meet our 2017 cash requirements. In the near term, we expect that our cash from operations and availability under our revolving credit facility will meet our cash needs to fund our operations, capital expenditures, interest payments on debt, debt repayments, any dividends, and opportunities for common stock repurchases under the previously announced program. We also plan to utilize excess cash on hand to pay down amounts outstanding under the Term Loan Agreement. See Note 11 “Debt” of the condensed consolidated financial statements for further information.  Our long-term cash needs will depend on many factors including an introduction of new products, enhancements of current products, the geographic mix of our business and any potential acquisitions. We believe our cash from operations and the availability under our revolving credit facility will meet any long-term needs unless a significant acquisition is identified, in which case we expect that we would be able to borrow the necessary funds to complete such an acquisition.

Cash and cash equivalents include cash in banks and all non-restricted, highly liquid investments with original maturities of three months or less at the time of purchase. Cash and cash equivalents as of September 30, 2017 increased $27.5 million from December 31, 2016 primarily driven by the Bats acquisition and payment of long-term debt offset by the proceeds from long-term debt. See “—Cash Flow” below for further discussion.

Our cash and cash equivalents held outside of the United States in various foreign subsidiaries totaled $41.6 million as of September 30, 2017. The remaining balance was held in the United States and totaled $83.2 million as of September 30, 2017. No cash or cash equivalents were held outside of the United States as of December 31, 2016. The majority of cash held outside the United States is available for repatriation, but under current law, could subject us to additional United States income taxes, less applicable foreign tax credits. In connection with ETF.com, we have $1.8 million of restricted cash held to be paid to the sellers of ETF.com within 18 months after the acquisition date of April 1, 2016 upon release of seller indemnifications per the terms of the acquisition agreement.

Our financial investments include investments with original or acquired maturities longer than three months but that mature in less than one year from the statement of financial condition date and are recorded at fair value. As of September 30, 2017 and December 31, 2016, financial investments primarily consisted of U.S. Treasury securities.

Cash Flow

The following table summarizes our cash flow data for the nine months ended September 30, 2017:

	Nine Months Ended September 30,
	2017			2016
Net cash provided by operating activities	$	178.9		$	174.1
Net cash used in investing activities	(1,369.6		)	(77.3		)
Net cash provided by (used in) financing activities	1,214.3			(126.3		)
Effect of foreign currency exchange rate changes on cash and cash equivalents	3.9			—
	$	27.5		$	(29.5	)

Net Cash Flows Provided by Operating Activities

During the nine months ended September 30, 2017, net cash provided by operating activities was $39.7 million greater than net income. The variance is primarily attributed to our acquisition of Bats. Primarily as a result of the acquisition, we had depreciation and amortization totaling $136.3 million for the nine months ended September 30, 2017. This amount was offset by a change in the Section 31 fee payable of $110.1 million.

50

Net Cash Flows Used in Investing Activities

Net cash flows used in investing activities for the nine months ended September 30, 2017 and 2016 were $1,369.6 million, and $77.3 million. The variance is primarily attributed to our acquisition of Bats on February 28, 2017.

Net Cash Flows Provided by (Used in) Financing Activities

Net cash flows provided by (used in) financing activities for the nine months ended September 30, 2017 and 2016 were $1,214.3 million and $(126.3) million, respectively. We received proceeds from long-term debt of $1,944.2 million while making principal payments on long-term debt of $625.0 million and paying dividends totaling $87.4 million.

Financial Assets

The following summarizes our financial assets as of September 30, 2017 and December 31, 2016 (in millions):

	September 30, 2017		December 31, 2016
Cash and cash equivalents	$	124.8	$	97.3
Financial investments	2.4		—
Cash collected for Section 31 fees	—		—
Adjusted cash (1)	$	127.2	$	97.3

(1) Adjusted cash is a non-GAAP measure and represents cash and cash equivalents plus financial investments minus cash collected for Section 31 fees, which will need to be remitted in the near term. We have presented adjusted cash because we consider it an important supplemental measure of our liquidity and believe that it is frequently used by analysts, investors and other interested parties in the evaluation of companies.

Debt

The following summarizes our debt obligations as of September 30, 2017 and December 31, 2016 (in millions):

	September 30, 2017			December 31, 2016
Term Loan Agreement	$	375.0		$	—
3.650% Senior Notes	650.0			—
1.950% Senior Notes	300.0			—
Revolving Credit Agreement	—			—
Less unamortized discount and debt issuance costs	(12.6		)	—
Total long-term debt	$	1,312.4		$	—

As of September 30, 2017 and December 31, 2016, we were in compliance with the covenants of our debt agreements.

In addition to the debt outstanding, as of September 30, 2017, we had an additional $150.0 million available through our revolving credit facility. Together with adjusted cash, we had $277.2 million available to fund our operations, capital expenditures, potential acquisitions, debt repayments and any dividends as of September 30, 2017.

Commercial Commitments and Contractual Obligations

As of September 30, 2017, our commercial commitments and contractual obligations included real property leases, operating leases, data and telecommunications agreements, equipment leases, our long-term debt outstanding, contingent consideration and other obligations. See Note 21, Commitments and Contingencies, to the condensed consolidated financial statements for a discussion of commitments and contingencies and Note 11, Debt, for a discussion of the outstanding long-term debt.

Off Balance Sheet Arrangements

As of September 30, 2017 we did not have any off-balance sheet arrangements.

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Item 3. Quantitative and Qualitative Disclosures about Market Risk

As a result of our operating activities, we are exposed to market risks such as foreign currency exchange rate risk, equity risk and credit risk. We have implemented policies and procedures to measure, manage and monitor and report risk exposures, which are reviewed regularly by management and our board of directors.

Foreign Currency Exchange Rate Risk

As a result of the acquisition of Bats, we expanded our operations in Europe and Asia and are subject to increased currency translation risk as revenues and expenses are denominated in foreign currencies, primarily the British pound, Singapore dollar and the Euro. We also have de minimis exposure to other foreign currencies, including the Swiss Franc, Norwegian Kroner, Swedish Krona and Danish Kroner.

For the three and nine months ended September 30, 2017, our exposure to foreign-denominated revenues and expenses is presented by primary foreign currency in the following table:

	Three Months Ended September 30, 2017						Nine Months Ended September 30, 2016
	Euro(1)			British Pound (1)			Euro(1)			British Pound (1)
Foreign denominated % of:
Revenues	1.9		%	1.8		%	2.2		%	2.0		%
Cost of revenues	1.6		%	—		%	1.9		%	—		%
Operating expenses	0.4		%	—		%	0.1		%	—		%
Impact of 10% adverse currency fluctuation on:
Revenues	$	1.1		$	1.1		$	3.5		$	3.3
Cost of revenues	0.5			—			1.0			—
Operating expenses	0.1			—			—			—

(1) An average foreign exchange rate to the U.S. dollar for the period was used.

Equity Risk

Our investment in European operations is exposed to volatility in currency exchange rates through translation of our net assets or equity to U.S. dollars. The assets and liabilities of our European business are denominated in British pounds. Fluctuations in currency exchange rates may create volatility in our reported results as we are required to translate foreign currency reported statements of financial condition and income into U.S. dollars for consolidated reporting. The translation of these non-U.S. dollar statements of financial condition into U.S. dollars for consolidated reporting results in a cumulative translation adjustment, which is recorded in accumulated other comprehensive loss (income) within stockholders' equity on our consolidated statements of financial condition. Our primary exposure to this equity risk as of September 30, 2017 is presented by foreign currency in the following table:

	British Pound (1)
	(in millions)
Net equity investment in Cboe Europe Equities	$	689.9
Impact on consolidated equity of a 10% adverse currency fluctuation	$	69.0

(1) Converted to U.S. dollars using the foreign exchange rate of British pounds into U.S. dollars as of September 30, 2017.

52

Credit Risk

We are exposed to credit risk from third parties, including customers, counterparties and clearing agents. These parties may default on their obligations due to bankruptcy, lack of liquidity, operational failure or other reasons. We limit our exposure to credit risk by selecting the counterparties with which we make investments and execute agreements.

We do not have counterparty credit risk with respect to trades matched on our exchanges in the U.S and Europe. With respect to listed cash equities, we deliver matched trades of our customers to the National Security Clearing Corporation, NSCC, without taking on counterparty risk for those trades. NSCC acts as a central counterparty on all transactions occurring on BZX, BYX, EDGX and EDGA and, as such, guarantees clearance and settlement of all of our matched equity trades. Similarly, with respect to U.S. listed equity options and futures, we deliver matched trades of our customers to the OCC, which acts as a central counterparty on all transactions occurring on Cboe Options, C2, BZX, EDGX and CFE and, as such, guarantees clearance and settlement of all of our matched options and futures trades.

With respect to orders Trading routes to other markets for execution on behalf of our customers, Cboe Trading is exposed to some counterparty credit risk in the case of failure to perform on the part of our clearing firms, Morgan Stanley & Co. LLC (Morgan Stanley) or Wedbush Securities, Inc. (Wedbush Securities). Morgan Stanley and Wedbush Securities guarantee trades until one day after the trade date, after which time NSCC provides a guarantee. Thus, Cboe Trading is potentially exposed to credit risk to the counterparty to a trade routed to another market center between the trade date and one day after the trade date in the event that Morgan Stanley or Wedbush Securities fails. We believe that any potential requirement for us to make payments under these guarantees is remote and accordingly, have not recorded any liability in the consolidated financial statements for these guarantees.

Similarly, with respect to orders in U.S. listed equity options, we route orders for execution to other national securities exchanges through either Trading or through affiliates of Bank of America Merrill Lynch, Wedbush Securities, Wolverine Execution Services, L.L.C. and Compass Professional Services, L.L.C. Trading has counterparty credit risk exposure to these firms until a trade settles (generally one day after the trade date). We believe that any potential requirement for us to make payments under these guarantees is remote. Accordingly, we have not recorded any liability in our consolidated financial statements for these guarantees.

Historically, we have not incurred any liability due to a customer’s failure to satisfy its contractual obligations as counterparty to a system trade. Credit difficulties or insolvency, or the perceived possibility of credit difficulties or insolvency, of one or more larger or visible market participants could also result in market-wide credit difficulties or other market disruptions.

We do not have counterparty credit risk with respect to institutional spot FX trades occurring on our platform because Cboe FX is not a counterparty to any FX transactions. All transactions occurring on our platform occur bilaterally between two banks or prime brokers as counterparties to the trade. While Cboe FX does not have direct counterparty risk, Cboe FX may suffer a decrease in transaction volume if a bank or prime broker experiences an event that causes other prime brokers to decrease or revoke the credit available to the prime broker experiencing the event. Therefore, Cboe FX may have risk that is related to the credit of the banks and prime brokers that trade FX on the Cboe FX platform.

We also have credit risk related to transaction fees that are billed in arrears to customers on a monthly basis. Our potential exposure to credit losses on these transactions is represented by the receivable balances in our consolidated statements of financial condition. Our customers are financial institutions whose ability to satisfy their contractual obligations may be impacted by volatile securities markets.

On a regular basis, we review and evaluate changes in the status of our counterparties’ creditworthiness. Credit losses such as those described above could adversely affect our consolidated financial position and results of operations. Any such effects to date have been minimal.

Item 4.  Controls and Procedures

a) Disclosure controls and procedures. The Company's management, with the participation of its Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the Company's disclosure controls and procedures (as defined in Rule 13a-15(e) and Rule 15d-15(e) under the Securities Exchange Act of 1934 (the “Exchange Act”)) as of the end of the period covered by this report. Based upon that evaluation, the Company's Chief Executive Officer and Chief Financial Officer have concluded that, as of the end of such period, the Company's disclosure controls and procedures are effective.

(b) Internal controls over financial reporting. On February 28, 2017, the Company acquired Bats. In conducting the evaluation of the effectiveness of internal controls over financial reporting, the Company elects to exclude Bats when conducting the annual evaluation of internal controls as permitted by applicable regulations. The Company is implementing internal controls over significant processes specific to the acquisition that management believes are appropriate in consideration of related integration of operations, systems, control activities, and accounting for the merger and merger-related transactions.

53

As of the date of this Quarterly Report on Form 10-Q, the Company is the process of further integrating the acquired Bats operations into the overall internal controls over financial reporting. The Merger resulted in changes in the operating results for the three and nine months ended September 30, 2017 compared to the three and nine months ended September 30, 2016.  Revenue less cost of revenue increased to $269.7 million, an increase of 98.0% over the three months ended September 30, 2016.  Total operating expenses increased 113.6% to $150.4 million.  As a result, net income allocated to common stockholders increased 48.1% to $59.7 million. Revenue less cost of revenue increased to $730.0 million, an increase of 72.4% over the nine months ended September 30, 2016.  Total operating expenses increased 133.3% to $466.8 million.  As a result, net income allocated to common stockholders increased 1.5% to $142.1 million.

Except as described above, no changes occurred in the Company’s internal control over financial reporting during third quarter 2017 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

54

PART II—OTHER INFORMATION

Item 1.        Legal Proceedings.

Cboe Global Markets, Inc. incorporates herein by reference the discussion set forth in Note 21 (“Commitments and Contingencies—Legal Proceedings”) of the condensed consolidated financial statements included herein.

Item 1A.    Risk Factors.

There have been no material updates during the period covered by this Form 10-Q to the Risk Factors as set forth in Item 1A. of our Annual Report on Form 10-K for the year ended December 31, 2016.  These risks and uncertainties, however, are not the only risks and uncertainties that we face. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial may also significantly impact us. Any of these risks and uncertainties may materially and adversely affect our business, financial condition or results of operations, liquidity and cash flows.

Item 2.        Unregistered Sales of Equity Securities and Use of Proceeds.

Share repurchase program

In 2011, the board of directors approved an initial authorization for the Company to repurchase shares of its outstanding common stock of $100 million and approved additional authorizations of $100 million in each of 2012, 2013, 2014, 2015, and February 2016 for a total authorization of $600 million. The program permits the Company to purchase shares through a variety of methods, including in the open market or through privately negotiated transactions, in accordance with applicable securities laws. It does not obligate the Company to make any repurchases at any specific time or situation.

As of September 30, 2017, the Company had $97.0 million of availability remaining under its existing share repurchase authorizations. We were not active in our share repurchase program during the third quarter of 2017.  

Purchase of common stock from employees

The Company acquired 19,330 shares for a total cost of approximately $2.0 million during the three months ended September 30, 2017 that were not part of the publicly announced share repurchase authorization. These shares consisted of shares retained to cover payroll withholding taxes in connection with the vesting of restricted stock unit awards and performance share awards, and shares used by employees to cover the price of certain stock options that were exercised.

Use of Proceeds

None.

Purchases of Equity Securities

None.

Item 3.        Defaults upon Senior Securities.

 None.

Item 4.        Mine Safety Disclosures.

Not applicable.

Item 5.        Other Information.

None.

Item 6.        Exhibits.

55

Exhibit No.	Description
3.1	Third Amended and Restated Certificate of Incorporation, incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K (File No. 001-34774) filed on October 17, 2017.
3.2	Fourth Amended and Restated Bylaws, incorporated by reference to Exhibit 3.2 to the Company's Current Report on Form 8-K (File No. 001-34774) filed on October 17, 2017.
12.1	Ratio of Earnings to Fixed Charges (Filed herewith).
31.1	Certification of Chief Executive Officer pursuant to Rule 13a-14 (Filed herewith).
31.2	Certification of Chief Financial Officer pursuant to Rule 13a-14 (Filed herewith).
32.1	Certificate of Chief Executive Officer pursuant to Rule 13a-14(b) and Section 1350 of Chapter 63 of Title 18 of the United States Code (Filed herewith).
32.2	Certificate of Chief Financial Officer pursuant to Rule 13a-14(b) and Section 1350 of Chapter 63 of Title 18 of the United States Code (Filed herewith).
101.INS	XBRL Instance Document (Filed herewith).
101.SCH	XBRL Taxonomy Extension Schema Document (Filed herewith).
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document (Filed herewith).
101.DEF	XBRL Taxonomy Extension Definition Linkbase (Filed herewith).
101.LAB	XBRL Taxonomy Extension Label Linkbase Document (Filed herewith).
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document (Filed herewith).

56

SIGNATURES

Pursuant to the requirements 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.

		CBOE GLOBAL MARKETS, INC.
		Registrant
		By:	/s/ Edward T. Tilly
			Edward T. Tilly
			Chief Executive Officer (Principal Executive Officer)
Date:	November 7, 2017
		By:	/s/ Alan J. Dean
			Alan J. Dean
			Executive Vice President and Chief Financial Officer (Principal Financial Officer)
Date:	November 7, 2017

57

EX-12.1

EXHIBIT 12.1

Ratio of Earnings to Fixed Charges

	Nine Months Ended September 30,		Year Ended December 31,
(in millions, except ratios)	2017		2016		2015		2014		2013		2012
Earnings:
Income before taxes	$	230.3	$	305.4	$	323.2	$	310.9	$	285.6	$	244.3
Fixed charges:
Interest expensed and capitalized and amortized premiums, discounts	31.2		5.7		—		—		—		—
An estimate of interest expense within rental expense	2.2		1.5		1.4		1.3		1.0		1.1
Distributed income of equity investees	1.5		2.9		2.4		—		—		—
Total fixed charges	$	34.9	$	10.1	$	3.8	$	1.3	$	1.0	$	1.1
Total earnings including fixed charges	$	265.1	$	315.6	$	327.0	$	312.2	$	286.6	$	245.4
Ratio of earnings to fixed charges (1)	8.0x		43.7x		231.4x		245.7x		286.9x		213.6x

(1)    The ratio of earnings to fixed charges equals earnings divided by fixed charges. Earnings is defined as the amount resulting from adding and subtracting the following items. Add the following: (a) pre-tax income from continuing operations before adjustment for income or loss from equity investees; (b) fixed charges; (c) amortization of capitalized interest; (d) distributed income of equity investees; and (e) the portion of pre-tax losses of equity investees attributable to Cboe Global Markets, Inc. for which charges arising from guarantees are included in fixed charges. From the total of the added items, subtract the following: (a) interest capitalized; (b) preference security dividend requirements of consolidated subsidiaries; and (c) the noncontrolling interest in pre-tax income of subsidiaries that have not incurred fixed charges. Fixed charges are defined as the sum of the following: (a) interest expensed and capitalized; (b) amortized premiums, discounts and capitalized expenses related to indebtedness; (c) an estimate of the interest within rental expense; and (d) preference security dividend requirements of consolidated subsidiaries.

EX-31.1

EXHIBIT 31.1

CERTIFICATION

I, Edward T. Tilly, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Cboe Global Markets, 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.

Dated:	November 7, 2017	/s/ Edward T. Tilly
		Edward T. Tilly
		Chief Executive Officer

1

EX-31.2

EXHIBIT 31.2

CERTIFICATION

I, Alan J. Dean, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Cboe Global Markets, 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.

Dated:	November 7, 2017	/s/ Alan J. Dean
		Alan J. Dean
		Executive Vice President and Chief Financial Officer

1

EX-32.1

EXHIBIT 32.1

Written Statement of the Chief Executive Officer

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002

Solely for the purposes of complying with 18 U.S.C. Section 1350, I, the undersigned Chief Executive Officer of Cboe Global Markets, Inc. (the “Company”), hereby certify, based on my knowledge, that the Quarterly Report on Form 10-Q of the Company for the quarter ended September 30, 2017 (the “Report”) fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934 and that information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Edward T. Tilly

Edward T. Tilly

November 7, 2017

1

EX-32.2

EXHIBIT 32.2

Written Statement of the Executive Vice President and Chief Financial Officer

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002

Solely for the purposes of complying with 18 U.S.C. Section 1350, I, the undersigned Executive Vice President and Chief Financial Officer of Cboe Global Markets, Inc. (the “Company”), hereby certify, based on my knowledge, that the Quarterly Report on Form 10-Q of the Company for the quarter ended September 30, 2017 (the “Report”) fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934 and that information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Alan J. Dean

Alan J. Dean

November 7, 2017

1

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Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Oct. 31, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	Cboe Global Markets, Inc.
Entity Central Index Key	0001374310
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		113,457,824

XML

Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 124.8	$ 97.3
Financial investments	2.4	0.0
Accounts receivables, net	195.8	76.7
Income taxes receivable	35.2	53.7
Other current assets	16.1	7.4
Total Current Assets	374.3	235.1
Investments	83.2	72.9
Land	4.9	4.9
Property and equipment, net	77.2	55.9
Goodwill	2,696.3	26.5
Intangible assets, net	1,940.2	8.7
Other assets, net	52.0	72.7
Total Assets	5,228.1	476.7
Current Liabilities:
Accounts payable and accrued liabilities	140.4	82.4
Section 31 fees payable	25.4	4.4
Deferred revenue	11.4	3.1
Income taxes payable	4.2	0.0
Contingent consideration liability	56.6	0.0
Total Current Liabilities	238.0	89.9
Long-term debt	1,312.4	0.0
Income tax liability	67.2	52.1
Deferred income taxes	715.7	0.0
Other non-current liabilities	7.5	4.2
Commitments and Contingencies
Redeemable Noncontrolling Interest	9.4	12.6
Stockholders’ Equity:
Preferred stock, $0.01 par value: 20,000,000 shares authorized, no shares issued and outstanding at September 30, 2017 and December 31, 2016	0.0	0.0
Common stock, $0.01 par value: 325,000,000 shares authorized, 125,332,691 and 113,457,824 shares issued and outstanding, respectively at September 30, 2017 and 92,950,065 and 81,285,307 shares issued and outstanding, respectively at December 31, 2016	1.2	0.9
Treasury stock, at cost: 11,874,867 shares at September 30, 2017 and 11,664,758 shares at December 31, 2016	(550.2)	(532.2)
Additional paid-in capital	2,610.0	139.2
Retained earnings	766.9	710.8
Accumulated other comprehensive income (loss), net	50.0	(0.8)
Total Stockholders’ Equity	2,877.9	317.9
Total Liabilities, Redeemable Noncontrolling Interest and Stockholders’ Equity	$ 5,228.1	$ 476.7

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Condensed Consolidated Balance Sheets (unaudited) (Parenthetical) - $ / shares	Sep. 30, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Preferred stock, par value (in USD per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	20,000,000	20,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	325,000,000	325,000,000
Common stock, shares issued (in shares)	125,332,691	92,950,065
Common stock, shares outstanding (in shares)	113,457,824	81,285,307
Treasury stock (in shares)	11,874,867	11,664,758

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Condensed Consolidated Statements of Income (unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues:
Transaction fees	$ 423.3	$ 124.5	$ 1,133.6	$ 378.3
Access fees	30.1	13.0	77.6	39.4
Exchange services and other fees	20.0	11.4	55.3	34.2
Market data fees	46.8	8.3	117.3	24.5
Regulatory fees	83.5	9.1	205.1	27.4
Other revenue	7.7	2.4	19.5	8.5
Total Revenues	611.4	168.7	1,608.4	512.3
Cost of Revenues:
Liquidity payments	234.3	9.5	606.1	23.2
Routing and clearing	9.4	3.6	27.9	7.9
Section 31 fees	75.9	0.0	180.5	0.0
Royalty fees	22.1	19.4	63.9	57.8
Total Cost of Revenues	341.7	32.5	878.4	88.9
Revenues Less Cost of Revenues	269.7	136.2	730.0	423.4
Operating Expenses:
Compensation and benefits	50.4	28.3	148.2	83.9
Depreciation and amortization	55.4	10.2	136.3	34.4
Technology support services	11.4	5.6	30.9	17.0
Professional fees and outside services	17.6	12.7	48.9	41.0
Travel and promotional expenses	4.5	2.6	12.0	7.6
Facilities costs	2.9	1.3	7.7	4.2
Acquisition-related costs	5.5	8.6	75.4	8.6
Change in contingent consideration	0.4	0.0	1.1	0.0
Other expenses	2.3	1.1	6.3	3.4
Total Operating Expenses	150.4	70.4	466.8	200.1
Operating Income	119.3	65.8	263.2	223.3
Non-operating (Expenses) Income:
Interest expense, net	(10.5)	(0.2)	(30.9)	(0.2)
Other (expense) income	(2.9)	1.8	(2.0)	8.6
Income Before Income Tax Provision	105.9	67.4	230.3	231.7
Income tax provision	45.6	26.9	86.8	91.1
Net income	60.3	40.5	143.5	140.6
Net loss attributable to redeemable noncontrolling interest	0.2	0.3	0.8	0.8
Net Income Excluding Noncontrolling Interest	60.5	40.8	144.3	141.4
Change in redemption value of noncontrolling interest	(0.2)	(0.3)	(0.8)	(0.8)
Net income allocated to participating securities	(0.6)	(0.2)	(1.4)	(0.6)
Net Income Allocated to Common Stockholders	$ 59.7	$ 40.3	$ 142.1	$ 140.0
Net Income Per Share Allocated to Common Stockholders:
Basic earnings per share (in USD per share)	$ 0.53	$ 0.50	$ 1.35	$ 1.72
Diluted earnings per share (in USD per share)	$ 0.53	$ 0.50	$ 1.34	$ 1.72
Basic weighted average shares outstanding (in shares)	112.3	81.3	105.5	81.5
Diluted weighted average shares outstanding (in shares)	112.6	81.3	105.8	81.5

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Condensed Consolidated Statements of Comprehensive Income (unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net Income	$ 60.3	$ 40.5	$ 143.5	$ 140.6
Foreign currency translation adjustments	20.5	0.0	50.7	0.0
Unrealized holding (losses) gains on available-for-sale investments	(0.1)	0.0	0.1	0.0
Comprehensive Income	80.7	40.5	194.3	140.6
Comprehensive loss attributable to noncontrolling interest	0.2	0.3	0.8	0.8
Comprehensive Income Excluding Noncontrolling Interest	80.9	40.8	195.1	141.4
Change in redemption value of noncontrolling interest	(0.2)	(0.3)	(0.8)	(0.8)
Comprehensive income allocated to participating securities	(0.3)	(0.2)	(1.4)	(0.6)
Comprehensive Income Allocated to Common Stockholders	$ 80.4	$ 40.3	$ 192.9	$ 140.0

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Condensed Consolidated Statement of Changes in Stockholder's Equity (unaudited) - 9 months ended Sep. 30, 2017 - USD ($) $ in Millions	Total	Preferred Stock	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Redeemable Noncontrolling Interests
December 31, 2016 at Dec. 31, 2016	$ 317.9	$ 0.0	$ 0.9	$ (532.2)	$ 139.2	$ 710.8	$ (0.8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of stock for acquisition of Bats Global Markets, Inc.	2,424.7		0.3		2,424.4
Issuance of vested restricted stock granted to employees	(12.0)			(12.0)
Common stock issued from employee stock plans	(1.9)			(6.0)	4.1
Stock-based compensation	39.1				39.1
Net income excluding noncontrolling interest	144.3					144.3
Cash dividends on common stock of $0.77 per share	(87.4)					(87.4)
Purchase of additional equity interest from noncontrolling interest	3.2				3.2
Other comprehensive income	50.8						50.8
Redemption value adjustment	(0.8)					(0.8)
September 30, 2017 at Sep. 30, 2017	2,877.9	$ 0.0	$ 1.2	$ (550.2)	$ 2,610.0	$ 766.9	$ 50.0
December 31, 2016 at Dec. 31, 2016	12.6							$ 12.6
Increase (Decrease) in Temporary Equity [Roll Forward]
Purchase of additional equity interest from noncontrolling interest	3.2							(3.2)
Net loss attributable to redeemable noncontrolling interest	0.8							(0.8)
Redemption value adjustment	0.8							0.8
September 30, 2017 at Sep. 30, 2017	$ 9.4							$ 9.4

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Condensed Consolidated Statement of Changes in Stockholder's Equity (unaudited) (Parenthetical)	9 Months Ended
	Sep. 30, 2017 $ / shares
Statement of Stockholders' Equity [Abstract]
Dividends (in USD per share)	$ 0.77

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Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash Flows from Operating Activities:
Net Income	$ 143.5	$ 140.6
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	136.3	34.4
Amortization of debt issuance cost	3.1	0.0
Change in contingent consideration	1.1	0.0
Gain on settlement of contingent consideration	0.0	(1.4)
Realized gain on available-for-sale securities	(0.4)	0.0
Provision for uncollectable convertible notes receivable	3.8	0.0
Provision for deferred income taxes	(6.3)	0.4
Stock-based compensation expense	39.1	10.9
Impairment of data processing software	14.9	0.0
Equity in investments	(0.3)	(0.8)
Excess tax benefit from stock-based compensation	7.1	0.0
Changes in assets and liabilities:
Accounts receivable	(2.1)	(0.1)
Income taxes receivable	24.1	(24.3)
Trading financial investment	(1.9)	0.0
Other prepaid expenses	(8.7)	(3.4)
Other current assets	0.0	0.4
Accounts payable and accrued liabilities	(1.1)	8.2
Section 31 fees payable	(122.7)	0.0
Deferred revenue	3.9	2.8
Income taxes payable	(50.2)	(1.6)
Income tax liability	(5.3)	8.0
Other liabilities	1.0	0.0
Net Cash Flows provided by Operating Activities	178.9	174.1
Cash Flows from Investing Activities:
Acquisitions, net of cash acquired	(1,405.4)	(14.3)
Purchases of available-for-sale financial investments	(89.2)	0.0
Proceeds from maturities of available-for-sale financial investments	155.1	0.0
Investments	(4.0)	(24.6)
Payment of contingent consideration from acquisition	0.0	(2.0)
Purchases of property and equipment	(26.1)	(36.4)
Net Cash Flows used in Investing Activities	(1,369.6)	(77.3)
Cash Flows from Financing Activities:
Proceeds from long-term debt	1,944.2	0.0
Principal payments of long term debt	(625.0)	0.0
Debt issuance costs	(1.3)	(4.7)
Dividends paid	(87.4)	(58.1)
Purchase of unrestricted stock from employees	(18.0)	(4.1)
Proceeds from exercise of stock-based compensation	1.8	0.0
Excess tax benefit from stock-based compensation	0.0	1.1
Purchase of common stock under announced program	0.0	(60.5)
Net Cash Flows provided by (used in) Financing Activities	1,214.3	(126.3)
Effect of Foreign Currency Exchange Rate Changes on Cash and Cash equivalents	3.9	0.0
Increase (Decrease) in Cash and Cash Equivalents	27.5	(29.5)
Beginning of Period	97.3	102.3
End of Period	124.8	72.8
Supplemental disclosure of noncash transactions:
Forfeiture of common stock for payment of exercise of stock options	2.3	0.0
Supplemental disclosure of noncash investing activities:
Accounts receivable acquired	117.8	0.0
Financial investments	66.0	0.0
Property and equipment acquired	21.8	0.0
Goodwill acquired	2,651.0	0.0
Intangible assets acquired	2,000.0	0.0
Other assets acquired	32.8	0.0
Accounts payable and accrued expenses assumed	(59.9)	0.0
Section 31 fees payable acquired	(143.6)	0.0
Deferred tax liability acquired	(720.3)	0.0
Other liabilities assumed	(135.5)	0.0
Issuance of common stock related to acquisition	$ (2,424.7)	$ 0.0

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ORGANIZATION AND BASIS OF PRESENTATION

9 Months Ended

Sep. 30, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

ORGANIZATION AND BASIS OF PRESENTATION

ORGANIZATION AND BASIS OF PRESENTATION

Cboe Global Markets, Inc. is one of the world’s largest exchange holding companies, offering cutting-edge trading and investment solutions to investors around the world. The Company is committed to relentless innovation, connecting global markets with world-class technology, and providing seamless solutions that enhance the customer experience. 

Cboe offers trading across a diverse range of products in multiple asset classes and geographies, including options, futures, U.S. and European equities, exchange-traded products (ETPs), global foreign exchange (FX) and multi-asset volatility products based on the VIX, the world’s barometer for equity market volatility.

Cboe’s trading venues include the largest options exchange in the U.S. by volume and the largest stock exchange by value traded in Europe.  In addition, the Company is the second-largest stock exchange operator by volume in the U.S. and a leading market globally for ETP trading.

The Company is headquartered in Chicago with offices in Kansas City, New York, London, San Francisco, Singapore, Hong Kong, and Ecuador. 

In October 2017, the Company changed its legal name from CBOE Holdings, Inc. to Cboe Global Markets, Inc.  The amendment to effect the name change was filed and became effective with the State of Delaware on October 16, 2017.

Basis of Presentation

These interim unaudited condensed consolidated financial statements have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016.

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities, valuation of redeemable noncontrolling interests and reported amounts of revenues and expenses. On an ongoing basis, management evaluates its estimates based upon historical experience, observance of trends, information available from outside sources and various other assumptions that management believes to be reasonable under the circumstances. Actual results may differ from these estimates under different conditions or assumptions.

In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of financial position, results of operations and cash flows at the dates and for the periods presented have been included.

The results of operations for interim periods are not necessarily indicative of the results of operations for the full year.

For those consolidated subsidiaries in which the Company's ownership is less than 100% and for which the Company has control over the assets and liabilities and the management of the entity, the outside stockholders' interest are shown as non-controlling interests.

In 2017, the Company changed the presentation of liquidity payments to be a cost of revenues, which historically had been netted against transaction fees. The Company also changed the presentation of royalty fees to be a cost of revenues. The presentation of routing fees and costs were also changed. Routing fees were presented in transaction fees in total revenues and routing and clearing costs in total cost of revenues. These fees were previously presented as a net operating expense. These changes were made to conform to current presentation and the changes have been reflected in all periods presented.

Segment information

The Company previously operated as a single reportable business segment. As a result of the Bats acquisition on February 28, 2017 (Note 3), the Company is reporting five business segments: Options, U.S. Equities, Futures, European Equities, and Global FX, which is reflective of how the Company's chief operating decision-maker reviews and operates the business (Note 15). This change has been reflected in all periods presented.

Recent Accounting Pronouncements - Adopted

In the first quarter of 2017, the Company adopted Accounting Standards Update (ASU) 2014-09, Revenue from Contracts with Customers (Topic 606). Under the ASU, revenue is recognized when a customer obtains control of promised goods or services in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services. In addition, the standard requires disclosure of the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The Company applied the five-step method outlined in the ASU to all revenue streams and elected the full retrospective implementation method. The additional disclosures required by the ASU have been included in Note 2.

In the first quarter of 2017, the Company adopted ASU 2016-09, Compensation — Stock Compensation. This ASU simplifies several aspects of the accounting for stock-based payment transactions, including the recognition of excess tax benefits and deficiencies, the classification of those excess tax benefits on the statement of cash flows, an accounting policy election for forfeitures, the amount an employer can withhold to cover income taxes and still qualify for equity classification and the classification of those taxes paid on the statement of cash flows. The Company has chosen to use the actual forfeiture rate and applied the prospective transition method for excess tax benefits and employees taxes paid. As of the adoption date,the Company did not have any awards classified as a liability under the previous guidance.

In the first quarter of 2017, the Company adopted ASU 2016-16, Accounting for Income Taxes:Intra-Entity Transfers of Assets other than Inventory. The ASU requires that the income tax impact of intra-entity sales and transfers of property, except for inventory, be recognized when the transfer occurs. The Company applied the full retrospective application which did not result in any impact to the financial statements.

Recent Accounting Pronouncements - Issued, not yet Adopted

In May 2017, the FASB issued ASU 2017-09, Compensation - Stock Compensation (Topic 718) that provides additional guidance around which changes to a share-based payment award requires an entity to apply modification accounting. Specifically, an entity is to account for the effects of a modification, unless all of the following are satisfied: (1) the fair value (or calculated value or intrinsic value, if such an alternative measurement method is used) of the modified award is the same as the fair value (or calculated value or intrinsic value, if such an alternative measurement method is used) of the original award immediately before the original award is modified; (2) the vesting conditions of the modified award are the same as the vesting conditions of the original award immediately before the original award is modified; and (3) the classification of the modified award as an equity instrument or as a liability instrument is the same as the classification of the original award immediately before the original award is modified. For public entities, the update is effective beginning after December 15, 2017. Early adoption is permitted. The Company is in the process of evaluating this guidance and assessing the impact the ASU could have on the consolidated financial statements.

In March 2017, the FASB issued ASU 2017-07, Compensation - Retirement Benefits (Topic 715). This ASU requires an employer to report the service cost component in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations. For public entities, the update is effective beginning after December 15, 2017. Early adoption is permitted. The Company is in the process of evaluating this guidance and assessing the impact the ASU could have on the consolidated financial statements.

In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805)-Clarifying the Definition of a Business. ASU No. 2017-01 clarifies the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. There are three elements of a business: inputs, processes, and outputs. While an integrated set of assets and activities (collectively, a “set”) that is a business usually has outputs, outputs are not required to be present. Additionally, all of the inputs and processes that a seller uses in operating a set are not required if market participants can acquire the set and continue to produce outputs. ASU No. 2017-01 provides a screen to determine when a set is not a business. The screen requires that when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. This screen reduces the number of transactions that need to be further evaluated. If, however, the screen is not met, then the amendments in this ASU (1) require that to be considered a business, a set must include, at a minimum, an input and a substantive process that together significantly contribute to the ability to create output and (2) remove the evaluation of whether a market participant could replace missing elements. Finally, the amendments in this ASU narrow the definition of the term “output” so that it is consistent with the manner in which outputs are described in Topic 606 - Revenue from Contracts with Customers. For public entities, the update is effective for annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2018. Early adoption is permitted under certain circumstances. The Company is in the process of evaluating this guidance and assessing the impact the ASU could have on the consolidated financial statements.

In January 2017, the FASB issued ASU 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This ASU simplifies the manner in which an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. Step 2 measures a goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount of that goodwill. In computing the implied fair value of goodwill under Step 2, an entity, prior to the amendments in ASU No. 2017-04, had to perform procedures to determine the fair value at the impairment testing date of its assets and liabilities, including unrecognized assets and liabilities, in accordance with the procedure that would be required in determining the fair value of assets acquired and liabilities assumed in a business combination. However, under this ASU, an entity should (1) perform its annual or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount, and (2) recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value, with the understanding that the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. Additionally, ASU No. 2017-04 removes the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails such qualitative test, to perform Step 2 of the goodwill impairment test. For public entities, the update is effective for annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company is in the process of evaluating this guidance and assessing the impact the ASU could have on the consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02, Leases. This update requires a lessee to recognize on the balance sheet a liability to make lease payments and a corresponding right-of-use asset. The guidance also requires certain qualitative and quantitative disclosures about the amount, timing and uncertainty of cash flows arising from leases. This update is effective for annual and interim periods beginning after December 15, 2018. Early adoption is permitted. The Company is in the process of evaluating this guidance and assessing the impact the ASU could have on the consolidated financial statements.

In September 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230) — Classification of Certain Cash Receipts and Cash Payments (a consensus of the FASB Emerging Issues Task Force). ASU No. 2016-15 addresses eight specific cash flow issues in an effort to reduce diversity in practice: (1) debt prepayment or debt extinguishment costs; (2) settlement of zero-coupon bonds; (3) contingent consideration payments made after a business combination; (4) proceeds from the settlement of insurance claims; (5) proceeds from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies; (6) distributions received from equity method investees; (7) beneficial interests in securitization transactions; and (8) separately identifiable cash flows and application of the predominance principle. The ASU is effective for the Company for fiscal years beginning after December 15, 2017, and for the interim periods within that fiscal year. Early adoption is permitted, including adoption during an interim period. The Company is in the process of evaluating this guidance and assessing the impact the ASU could have on the consolidated financial statements.

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REVENUE RECOGNITION

9 Months Ended

Sep. 30, 2017

Deferred Revenue Disclosure [Abstract]

REVENUE RECOGNITION

REVENUE RECOGNITION

As of January 1, 2017, the Company adopted ASU 2014-09 Revenue from Contracts with Customers - Topic 606 and all subsequent ASUs that modified ASC 606. The Company has elected to apply the ASU and all related ASUs retrospectively to each prior reporting period presented. The implementation of the guidance had no material impact on the measurement or recognition of revenue of prior periods, however, additional disclosures have been added in accordance with the ASU.

The main types of revenue contracts are:

• Transaction fees - Transaction fees represent fees charged by the Company for the performance obligation of executing a trade on its markets. These fees can be variable based on trade volume tiered discounts, however, as all tiered discounts are calculated monthly, the actual discount is recorded on a monthly basis. Transaction fees, as well as any tiered volume discounts, are calculated and billed monthly in accordance with the Company’s published fee schedules. Transaction fees are recognized across all segments. The Company also pays liquidity payments to customers based on its published fee schedules. The Company uses these payments to improve the liquidity on its markets and therefore recognizes those payments as a cost of revenue.

• Access fees - Access fees represent fees assessed for the opportunity to trade, including fees for trading-related functionality across all segments. These fees are billed monthly in accordance with the Company’s published fee schedules and recognized on a monthly basis when the performance obligation is met. There is no remaining performance obligation after revenue is recognized.

• Exchange services and other fees - To facilitate trading, the Company offers technology services, terminal and other equipment rights, maintenance services, trading floor space and telecommunications services. Trading floor and equipment rights are generally on a month-to-month basis. Facilities, systems services and other fees are generally monthly fee-based, although certain services are influenced by trading volume or other defined metrics, while others are based solely on demand. All fees associated with the trading floor are recognized in the Options segment.

• Market data fees - Market data fees represent the fees received by the Company from the U.S. tape plans and fees charged to customers for proprietary market data. Fees from the U.S. tape plans are collected monthly based on published fee schedules and distributed quarterly to the U.S. exchanges based on a known formula. A contract for proprietary market data is entered into and charged on a monthly basis in accordance with the Company’s published fee schedules as the service is provided. Both types of market data are satisfied over time, and revenue is recognized on a monthly basis as the customer receives and consumes the benefit as the Company provides the data. U.S. tape plan market data is recognized in the U.S. Equities and Options segments. Proprietary market data fees are recognized across all segments.

• Regulatory fees- There are two types of regulatory fees that the Company recognizes. The first type represents fees collected by the Company to cover the Section 31 fees charged to the Exchanges by the SEC. The fees charged to customers are based on the fee set by the SEC per notional value of the transaction executed on the Company’s U.S. securities markets. These fees are calculated and billed monthly and are recognized in the U.S. Equities and Options segments. As the Exchanges are responsible for the ultimate payment to the SEC, the exchanges are considered the principal in these transactions. Regulatory fees also includes the options regulatory fee (ORF) which supports the Company’s regulatory oversight function in the Options segment and other miscellaneous regulatory fees.

• Other revenue - Other revenueprimarily includes revenue from various licensing agreements, all fees related to the trade reporting facility operated in the European Equities segment, and revenue associated with advertisements through the Company’s website.

All revenue recognized in the income statement is considered to be revenue from contracts with customers. The following table depicts the disaggregation of revenue according to product line and segment (in millions):

											Corporate
			U.S.				European		Global		Items and
	Options		Equities		Futures		Equities		FX		Eliminations		Total
Three months ended September 30, 2017
Transaction fees	$	172.3	$	185.5	$	36.6	$	19.0	$	9.9	$	—	$	423.3
Access fees	14.4		12.5		0.4		2.0		0.8		—		30.1
Exchange services and other fees	10.0		5.7		2.5		1.3		0.5		—		20.0
Market data fees	10.0		33.1		0.8		2.8		0.1		—		46.8
Regulatory fees	13.7		69.8		—		—		—		—		83.5
Other revenue	4.4		1.9		—		1.2		—		0.2		7.7
	$	224.8	$	308.5	$	40.3	$	26.3	$	11.3	$	0.2	$	611.4
Timing of revenue recognition
Services transferred at a point in time	$	190.4	$	257.2	$	36.6	$	20.2	$	9.9	$	0.2	$	514.5
Services transferred over time	34.4		51.3		3.7		6.1		1.4		—		96.9
	$	224.8	$	308.5	$	40.3	$	26.3	$	11.3	$	0.2	$	611.4
Three months ended September 30, 2016
Transaction fees	$	97.9	$	—	$	26.6	$	—	$	—	$	—	$	124.5
Access fees	12.8		—		0.2		—		—		—		13.0
Exchange services and other fees	9.4		—		2.0		—		—		—		11.4
Market data fees	7.6		—		0.7		—		—		—		8.3
Regulatory fees	9.1		—		—		—		—		—		9.1
Other revenue	2.4		—		—		—		—		—		2.4
	$	139.2	$	—	$	29.5	$	—	$	—	$	—	$	168.7

											Corporate
			U.S.				European		Global		Items and
	Options		Equities		Futures		Equities		FX		Eliminations		Total
Nine months ended September 30, 2017
Transaction fees	$	493.7	$	470.5	$	99.3	$	47.0	$	23.1	$	—	$	1,133.6
Access fees	40.6		29.4		1.4		4.4		1.8		—		77.6
Exchange services and other fees	33.0		13.6		4.7		2.9		1.1		—		55.3
Market data fees	30.9		78.1		1.6		6.5		0.2		—		117.3
Regulatory fees	41.1		164.0		—		—		—		—		205.1
Other revenue	11.7		4.2		0.7		2.4		—		0.5		19.5
	$	651.0	$	759.8	$	107.7	$	63.2	$	26.2	$	0.5	$	1,608.4
Timing of revenue recognition
Services transferred at a point in time	$	546.5	$	638.7	$	100.0	$	49.4	$	23.1	$	0.5	$	1,358.2
Services transferred over time	104.5		121.1		7.7		13.8		3.1		—		250.2
	$	651.0	$	759.8	$	107.7	$	63.2	$	26.2	$	0.5	$	1,608.4
Nine months ended September 30, 2016
Transaction fees	$	302.2	$	—	$	76.1	$	—	$	—	$	—	$	378.3
Access fees	38.8		—		0.6		—		—		—		39.4
Exchange services and other fees	28.3		—		5.9		—		—		—		34.2
Market data fees	22.2		—		2.3		—		—		—		24.5
Regulatory fees	27.4		—		—		—		—		—		27.4
Other revenue	7.9		—		0.6		—		—		—		8.5
	$	426.8	$	—	$	85.5	$	—	$	—	$	—	$	512.3

Contract liabilities for the nine months ended September 30, 2017 primarily represent prepayments of transaction fees and certain access and market data fees to the Exchanges. The revenue recognized from contract liabilities and the remaining balance is shown below (in millions):

	January 1, 2017		Cash Additions		Revenue Recognition			September 30, 2017
Liquidity provider sliding scale (1)	$	—	$	12.0	$	(9.0	)	$	3.0
Other, net	3.1		12.9		(7.6		)	8.4
Total deferred revenue	$	3.1	$	24.9	$	(16.6	)	$	11.4

(1)  Liquidity providers are eligible to participate in the sliding scale program, which involves prepayment of transaction fees, and to receive reduced fees based on the achievement of certain volume thresholds within a calendar month. These transaction fees are amortized and recorded ratably as the transactions occur over the period.

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ACQUISITIONS

9 Months Ended

Sep. 30, 2017

Business Combinations [Abstract]

ACQUISITIONS

ACQUISITIONS

Bats Global Markets, Inc.

On February 28, 2017, pursuant to the Agreement and Plan of Merger, dated as of September 25, 2016 (the “Merger Agreement”), by and among Cboe, Bats, CBOE Corporation, a Delaware corporation and a wholly-owned subsidiary of Cboe (“Merger Sub”), and Cboe Bats, LLC (formerly CBOE V, LLC), a Delaware limited liability company and a wholly-owned subsidiary of Cboe (“Merger LLC”), Cboe completed the merger of Merger Sub with and into Bats and the subsequent merger of Bats with and into Merger LLC. As a result of the Merger, Bats became a wholly-owned subsidiary of Cboe.

The acquisition-date fair value of the consideration transferred totaled $4.0 billion, which consisted of the following (in millions):

Cash	$	955.5
Common stock issued	2,387.3
Equity awards issued	37.4
	3,380.2
Debt extinguished	580.0
Total consideration paid	$	3,960.2

As a result of the Merger, each share of voting common stock of Bats, par value of $0.01 per share (“Bats Voting Common Stock”), and each share of non-voting common stock of Bats, par value of $0.01 per share (“Bats Non-Voting Common Stock” and, together with the Bats Voting Common Stock, “Bats Common Stock”), issued and outstanding immediately prior to the effective time of the Merger (the “Effective Time”) (other than shares held by Cboe, Bats or any of their respective subsidiaries, shares held by any holder of Bats Common Stock who was entitled to demand and properly demanded appraisal of such shares under Delaware law and unvested restricted shares of Bats Common Stock granted under any Bats equity incentive plan (all such shares described in this parenthetical, “Excluded Shares”)) was converted into, at the election of the holder of such share, either (i) 0.3201 of a share of common stock, par value of $0.01 per share, of Cboe (“Cboe Common Stock”) and $10.00 in cash (the “Mixed Consideration”), (ii) $14.99 in cash and 0.2577 of a share of Cboe Common Stock (the “Cash Election Consideration”) or (iii) 0.4452 of a share of Cboe Common Stock (the “Stock Election Consideration”). Pursuant to the terms of the Merger Agreement, the Cash Election Consideration and Stock Election Consideration payable in the Merger were calculated based on the volume-weighted average price (rounded to four decimal places) of shares of Cboe Common Stock on The Nasdaq Stock Market LLC for the period of ten consecutive trading days ended on February 24, 2017, which was $79.9289. The Cash Election Consideration and the Stock Election Consideration were subject to automatic adjustment, as described in the Merger Agreement and in the definitive joint proxy statement/prospectus dated December 9, 2016, filed by Cboe with the SEC on December 12, 2016, as amended and supplemented from time to time (the “Prospectus”), to ensure that the total amount of cash paid and the total number of shares of Cboe Common Stock issued in the Merger were the same as what would have been paid and issued if all holders of Bats Common Stock received the Mixed Consideration at the Effective Time.

The amounts in the table below represent the allocation of the purchase price and are subject to revision during the remainder of the measurement period, a period not to exceed twelve months from the acquisition date. Adjustments to the provisional values during the measurement period will be recorded in the reporting period in which the adjustment amounts are determined. The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the acquisition date (in millions):

Cash and cash equivalents	$	130.1
Accounts receivable	117.8
Financial investments	66.0
Property and equipment	21.8
Other assets	32.8
Goodwill	2,651.0
Intangibles	2,000.0
Accounts payable	(33.7		)
Accrued expenses	(26.2		)
Section 31 fees payable	(143.6		)
Income tax payable	(52.9		)
Deferred tax liability	(720.3		)
Other liabilities	(82.6		)
	$	3,960.2

For tax purposes, no tax deductible goodwill was generated as a result of this acquisition. Goodwill was assigned to the Options, U.S. Equities, European Equities, and Global FX segments as further described in Note 9 and is attributable to the expansion of asset classes, broadening of geographic reach, and expected synergies of the combined workforce, products and technologies of the Company and Bats. The intangible assets were assigned to the Options, U.S. Equities, European Equities, and Global FX segments in the following manner and will be amortized over the following useful lives:

			U.S.		European				Useful life
(amounts in millions)	Options		Equities		Equities		Global FX		(years)
Trading registrations and licenses	$	95.5	$	572.7	$	171.8	$	—	indefinite
Customer relationships	37.1		222.9		160.0		140.0		20
Market data customer relationships	53.6		322.0		60.0		64.4		15
Technology	22.5		22.5		22.5		22.5		7
Trademarks and trade names	1.0		6.0		1.8		1.2		2
Goodwill	226.4		1,738.1		419.3		267.2
	$	436.1	$	2,884.2	$	835.4	$	495.3

There were no goodwill or intangible assets assigned to the Futures segment as a result of this transaction as Bats did not operate a Futures business and no synergies are attributable to this segment.

The fair value of accounts receivable acquired was $117.8 million. The gross amount of accounts receivable was $118.0 million of which $0.2 million was deemed uncollectable.

The Company expensed $5.5 million of acquisition-related costs during the three months ended September 30, 2017 that included $3.4 million of compensation-related costs and $2.1 million of professional fees. These expenses are included in acquisition-related costs in the condensed consolidated statements of income.

The Company expensed $75.4 million of acquisition-related costs during the nine months ended September 30, 2017 that included $36.9 million of compensation-related costs, $22.7 million of professional fees, $14.9 million of an impairment of capitalized data processing software, and $0.9 million of facilities expenses. These expenses are included in acquisition-related costs in the condensed consolidated statements of income.

The amounts of revenue, operating income and net income of Bats are included in the Company’s condensed consolidated statements of income from the acquisition date to the three and nine months ended September 30, 2017 and are as follows (in millions):

	Three Months Ended September 30,		Nine Months Ended September 30,
	2017		2017
Revenue	$	411.6	$	1,017.4
Operating income	27.1		53.7
Net income	15.7		33.7

The financial information in the table below summarizes the combined results of operations of the Company and Bats, on a pro forma basis, as though the companies had been combined as of January 1, 2016. The pro forma financial information is presented for informational purposes only and is not indicative of the results of operations that would have been achieved if the acquisition had taken place at the beginning of the period presented. Such pro forma financial information is based on the historical financial statements of the Company and Bats. This pro forma financial information is based on estimates and assumptions that have been made solely for purposes of developing such pro forma information, including, without limitation, preliminary purchase accounting adjustments. The pro forma financial information does not reflect any synergies or operating cost reductions that may be achieved from the combined operations. The pro forma financial information combines the historical results for the Company and Bats for the three months ended September 30, 2016 and nine months ended September 30, 2017 and 2016 in the following table (in millions, except per share amounts): 

	Three Months Ended September 30,		Nine Months Ended September 30,
	2016		2017		2016
Revenue	$	610.3	$	1,881.3	$	1,930.9
Operating income	98.2		354.2		306.1
Net income allocated to common stockholders	52.6		201.3		170.1
Earnings per share:
Basic	$	0.47	$	1.79	$	1.51
Diluted	$	0.47	$	1.79	$	1.51

The supplemental 2017 and 2016 pro forma amounts have been calculated after applying the Company's accounting policies and adjusting the results to reflect the additional amortization that would have been charged assuming the adjusted fair values of acquired intangible assets had been applied on January 1, 2017 and on January 1, 2016. The supplemental 2017 pro forma financial information includes pro forma adjustments of $61.7 million for acquisition-related costs, such as fees to investment bankers, attorneys, accountants and other professional advisors, as well as severance to employees.

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SEVERANCE

9 Months Ended

Sep. 30, 2017

Restructuring and Related Activities [Abstract]

SEVERANCE

SEVERANCE

Subsequent to the Bats acquisition, the Company determined that certain employees' positions were redundant. As such, the Company communicated employee termination benefits to these employees.

The following is a summary of the employee termination benefits recognized within acquisition costs in the Corporate Items and Eliminations unit in the condensed consolidated statements of income (in millions):

	Employee Termination Benefits
Balance at December 31, 2016	$	0.4
Termination benefits accrued	20.7
Termination payments made	(19.7		)
Balance at September 30, 2017	$	1.4

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INVESTMENTS

9 Months Ended

Sep. 30, 2017

Investments, Debt and Equity Securities [Abstract]

INVESTMENTS

INVESTMENTS

As of September 30, 2017 and December 31, 2016, the Company's investments were comprised of the following (in millions):

	September 30, 2017		December 31, 2016
Equity Method:
Investment in Signal Trading Systems, LLC	$	13.4	$	12.4
Investment in EuroCCP	9.2		—
Total equity method investments	22.6		12.4
Cost Method:
Investment in OCC	30.3		30.3
Other cost method investments	30.3		30.2
Total cost method investments	60.6		60.5
Total Investments	$	83.2	$	72.9

Equity Method

Equity method investments include investments in Signal Trading Systems, LLC ("Signal") and EuroCCP, a Dutch domiciled clearing house. EuroCCP is one of three interoperable central counterparties, or CCPs, used to clear trades conducted on Cboe Europe Equities' markets. Cboe Europe Equities owns 20% of EuroCCP and can exercise significant influence over the entity as an equal shareholder with four other investors.

Cost Method

The carrying amount of cost method investments totaled $60.6 million as of September 30, 2017 and $60.5 million as of December 31, 2016, and is included in investments in the condensed consolidated balance sheets. The Company accounts for these investments using the cost-method of accounting primarily as a result of the Company's inability to exercise significant influence as the Company is a smaller shareholder of these investments. As of September 30, 2017, cost method investments primarily reflect a 20% investment in OCC and minority investments in American Financial Exchange, CurveGlobal and Eris Exchange Holdings, LLC.

In December 2014, OCC announced a newly-formed capital plan. The OCC capital plan was designed to strengthen OCC's capital base and facilitate its compliance with proposed SEC regulations for Systemically Important Financial Market Utilities ("SIFMUs") as well as international standards applicable to financial market infrastructures. On February 26, 2015, the SEC issued a notice of no objection to OCC's advance notice filing regarding the capital plan, and OCC and OCC's existing exchange stockholders, which include Cboe Options, subsequently executed agreements effecting the capital plan. Under the plan, each of OCC's existing exchange stockholders agreed to contribute its pro-rata share, based on ownership percentage, of $150 million in equity capital, which would increase OCC's shareholders' equity, and to provide its pro rata share in replenishment capital, up to a maximum of $40 million per exchange stockholder, if certain capital thresholds are breached. OCC also adopted policies under the plan with respect to fees, customer refunds, and stockholder dividends, which envision an annual dividend payment to the exchange stockholders equal to the portion of OCC's after-tax income that exceeds OCC's capital requirements after payment of refunds to OCC's clearing members (with such customer refunds generally to constitute 50% of the portion of OCC's pre-tax income that exceeds OCC's capital requirements). On March 3, 2015, in accordance with the plan, Cboe Options contributed $30 million to OCC. That contribution has been recorded under investments in the condensed consolidated balance sheets as of September 30, 2017.

On March 6, 2015, OCC informed Cboe Options that the SEC, acting though delegated authority, had approved OCC's proposed rule filing for the capital plan. Following petitions to review the approval based on delegated authority, the SEC conducted its own review and then approved the proposed rule change implementing OCC's capital plan. Certain petitioners subsequently appealed the SEC approval order for the OCC capital plan to the U.S. Court of Appeals for the D.C. Circuit and moved to stay the SEC approval order. On February 23, 2016, the Court denied the petitioners' motion to stay. On August 8, 2017, the Court held that the SEC’s approval order lacked reasoned decision-making sufficient to support the SEC’s conclusion that the OCC capital plan complied with applicable statutory requirements. The Court declined to vacate the SEC’s approval order or to require the unwinding of actions taken under the OCC capital plan, but instead remanded the matter to the SEC for further proceedings concerning whether that capital plan complies with those statutory requirements. Petitioners requested a stay of dividend payments to the exchange stockholders until the SEC made a final decision about the OCC capital plan, but the SEC denied that request on September 14, 2017. On that date, the SEC also established a schedule for interested parties to provide information for the SEC’s consideration on the merits of the proposed capital plan, and that schedule presently calls for the last submissions to be made by November 13, 2017.

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FINANCIAL INVESTMENTS

9 Months Ended

Sep. 30, 2017

Investments, Debt and Equity Securities [Abstract]

FINANCIAL INVESTMENTS

FINANCIAL INVESTMENTS

The Company’s financial investments with original or acquired maturities longer than three months, but that mature in less than one year from the condensed consolidated balance sheet date and any money market funds that are considered cash and cash equivalents are classified as current assets and are summarized as follows (in millions):

	September 30, 2017
	Cost basis		Unrealized gains		Unrealized losses		Fair value
Trading securities:
U.S. Treasury securities	$	0.5	$	—	$	—	$	0.5
Other securities	1.9		—		—		1.9
Money market funds	1.5		—		—		1.5
Total	$	3.9	$	—	$	—	$	3.9

	December 31, 2016
	Cost basis		Unrealized gains		Unrealized losses		Fair value
Money market funds	$	67.5	$	—	$	—	$	67.5
Total	$	67.5	$	—	$	—	$	67.5

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PROPERTY AND EQUIPMENT, NET

9 Months Ended

Sep. 30, 2017

Property, Plant and Equipment [Abstract]

PROPERTY AND EQUIPMENT, NET

PROPERTY AND EQUIPMENT, NET

Property and equipment consisted of the following as of September 30, 2017 and December 31, 2016 (in millions):

	September 30,			December 31,
	2017			2016
Construction in progress	$	11.5		$	0.2
Building	77.4			77.0
Furniture and equipment	168.2			138.8
Total property and equipment	257.1			216.0
Less accumulated depreciation	(179.9		)	(160.1		)
Total property and equipment, net	$	77.2		$	55.9

Depreciation expense using the straight-line method was $7.9 million and $6.0 million for the three months ended September 30, 2017 and 2016, respectively, and $23.2 million and $17.9 million for the nine months ended September 30, 2017 and 2016, respectively.

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OTHER ASSETS, NET

9 Months Ended

Sep. 30, 2017

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

OTHER ASSETS, NET

OTHER ASSETS, NET

Other assets, net consisted of the following as of September 30, 2017 and December 31, 2016 (in millions):

	September 30,			December 31,
	2017			2016
Software development work in progress	$	5.9		$	12.3
Data processing software	217.0			222.6
Less accumulated depreciation	(184.9		)	(172.0		)
Data processing software, net	38.0			62.9
Other assets (1)	14.0			9.8
Data processing software and other assets, net	$	52.0		$	72.7

(1) At December 31, 2016, other assets included $6.2 million of deferred financing costs and $3.5 million of deferred tax assets. The deferred financing costs were reclassified in 2017 and recorded as a reduction of long-term debt. At September 30, 2017, the majority of the balance included long-term prepaid assets and notes receivable.

Amortization expense related to data processing software was $4.9 million and $3.7 million for the three months ended September 30, 2017 and 2016, respectively, and $13.2 million and $15.1 million for the nine months ended September 30, 2017 and 2016, respectively.

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GOODWILL AND INTANGIBLE ASSETS, NET

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

GOODWILL AND INTANGIBLE ASSETS, NET

GOODWILL AND INTANGIBLE ASSETS, NET

The following table presents the details of goodwill by segment (in millions): 

				U.S.		European		Global		Corporate Items
	Options			Equities		Equities		FX		and Eliminations		Total
Balance as of December 31, 2016	$	7.7		$	—	$	—	$	—	$	18.8	$	26.5
Additions	226.4			1,738.1		419.3		267.2		—		2,651.0
Dispositions	(1.4		)	—		—		—		—		(1.4		)
Changes in foreign currency exchange rates	—			—		20.2		—		—		20.2
Balance as of September 30, 2017	$	232.7		$	1,738.1	$	439.5	$	267.2	$	18.8	$	2,696.3

Goodwill has been allocated to specific reporting units for purposes of impairment testing - Options, U.S. Equities, European Equities and Global FX. No goodwill has been allocated to Futures. Goodwill impairment testing is performed annually in the fiscal fourth quarter or more frequently if conditions exist that indicate that the asset may be impaired. The allocation of the new goodwill did not impact the existing goodwill assignment to reporting units and there are no aggregate impairments of goodwill.

The following table presents the details of the intangible assets (in millions):

				U.S.			European			Global			Corporate Items
	Options			Equities			Equities			FX			and Eliminations			Total
Balance as of December 31, 2016	$	2.0		$	—		$	—		$	—		$	6.7		$	8.7
Additions	209.7			1,146.1			416.1			228.1			—			2,000.0
Dispositions	(0.2		)	—			—			—			—			(0.2		)
Amortization	(10.5		)	(52.0		)	(16.5		)	(20.0		)	(0.9		)	(99.9		)
Changes in foreign currency exchange rates	—			—			31.6			—			—			31.6
Balance as of September 30, 2017	$	201.0		$	1,094.1		$	431.2		$	208.1		$	5.8		$	1,940.2

For the three months ended September 30, 2017 and 2016, amortization expense was $42.8 million and $0.4 million, respectively.  For the nine months ended September 30, 2017 and 2016, amortization expense was $99.9 million and $1.3 million, respectively.  The estimated future amortization expense is $42.4 million for the remainder of 2017, $158.1 million for 2018, $137.2 million for 2019, $120.8 million for 2020, $105.6 million for 2021 and $93.4 million for 2022.

The amounts in the table below represent the preliminary allocation of the purchase price and are subject to revision during the remainder of the measurement period, a period not to exceed 12 months from the acquisition date. Adjustments to the provisional values during the measurement period will be recorded in the reporting period in which the adjustment amounts are determined.

The following tables present the categories of intangible assets as of September 30, 2017 and December 31, 2016 (in millions):

																Remaining
	September 30, 2017															Weighted Average
				U.S.			European						Corporate Items			Amortization
	Options			Equities			Equities			Global FX			and Eliminations			Period (in years)
Trading registrations and licenses	$	95.5		$	572.7		$	185.1		$	—		$	—		Indefinite
Customer relationships	37.9			222.9			172.4			140.0			3.0			19
Market data customer relationships	53.6			322.0			64.6			64.4			—			14
Technology	23.4			22.5			24.2			22.5			4.0			6
Trademarks and tradenames	1.4			6.0			1.9			1.2			1.0			2
Other	0.2			—			—			—			—			2
Accumulated amortization	(11.0		)	(52.0		)	(17.0		)	(20.0		)	(2.2		)
	$	201.0		$	1,094.1		$	431.2		$	208.1		$	5.8

													Remaining
	December 31, 2016												Weighted Average
				U.S.		European				Corporate			Amortization
	Options			Equities		Equities		Global FX		and Other			Period (in years)
Trading registrations and licenses	$	—		$	—	$	—	$	—	$	—		—
Customer relationships	0.9			—		—		—		3.0			9
Market data customer relationships	—			—		—		—		—			—
Technology	1.1			—		—		—		4.0			4
Trademarks and tradenames	0.4			—		—		—		1.0			6
Other	0.2			—		—		—		—			2
Accumulated amortization	(0.6		)	—		—		—		(1.3		)
	$	2.0		$	—	$	—	$	—	$	6.7

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ACCOUNTS PAYABLE AND ACCRUED LIABILITIES

9 Months Ended

Sep. 30, 2017

Payables and Accruals [Abstract]

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES

Accounts payable and accrued liabilities consisted of the following as of September 30, 2017 and December 31, 2016 (in millions):

	September 30, 2017		December 31, 2016
Compensation and benefit-related liabilities	$	13.9	$	25.1
Termination benefits	1.4		0.4
Royalties	19.7		17.8
Accrued liabilities	58.4		25.4
Marketing fee payable	8.1		7.2
Accounts payable	38.9		6.5
Total accounts payable and accrued liabilities	$	140.4	$	82.4

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DEBT

9 Months Ended

Sep. 30, 2017

Debt Disclosure [Abstract]

DEBT

DEBT

The Company's long-term debt consisted of the following as of September 30, 2017 and December 31, 2016 (in millions):

	September 30,		December 31,
	2017		2016
Term Loan Agreement	$	369.6	$	—
3.650% Senior Notes	643.8		—
1.950% Senior Notes	299.0		—
Revolving Credit Agreement	—		—
Total long-term debt	$	1,312.4	$	—

In connection with the Merger, on December 15, 2016, the Company entered into the Term Loan Agreement (as defined below) providing for a $1.0 billion senior unsecured delayed draw term loan facility and on January 12, 2017, the Company issued $650 million aggregate principal amount of 3.650% Senior Notes due 2027 ("3.650% Senior Notes"). The proceeds from this delayed draw term loan facility and issuance of our senior notes, in addition to using cash on hand at Cboe and Bats, were used to finance a portion of the cash component of the Merger consideration, to refinance existing indebtedness of Bats and its subsidiaries and to pay related fees and expenses. In addition, on December 15, 2016, the Company entered into a $150 million revolving credit facility to be used for working capital and other general corporate purposes.

On June 29, 2017, Cboe refinanced approximately $300 million of the amounts outstanding under the Term Loan Agreement through the issuance of $300 million in aggregate principal amount of 1.950% Senior Notes due 2019 ("1.950% Senior Notes" and, together with the 3.650% Senior Notes, the "Notes").

Term Loan Agreement

On December 15, 2016, the Company, as borrower, entered into a Term Loan Credit Agreement (the “Term Loan Agreement”) with Bank of America, N.A., as administrative agent, certain lenders named therein (the “Term Lenders”), Merrill Lynch, Pierce, Fenner & Smith Incorporated, as sole lead arranger and sole bookrunner, Morgan Stanley MUFG Loan Partners, LLC, as syndication agent, and Citibank, N.A., PNC Bank, National Association and JPMorgan Chase Bank, N.A., as co-documentation agents. The Term Loan Agreement provided for a senior unsecured delayed draw term loan facility (the “Term Loan Facility”) in an aggregate principal amount of $1.0 billion.

Loans under the Term Loan Agreement bear interest, at our option, at either (i) the London Interbank Offered Rate (“LIBOR”) periodically fixed for an interest period (as selected by us) of one, two, three or six months plus a margin (based on our public debt ratings) ranging from 1.00 percent per annum to 1.75 percent per annum or (ii) a daily floating rate based on the agent’s prime rate (subject to certain minimums based upon the federal funds effective rate or LIBOR) plus a margin (based on our public debt ratings) ranging from zero percent per annum to 0.75 percent per annum. The Company was required to pay a ticking fee to the agent for the account of the Term Lenders which initially accrued at a rate (based on our public debt ratings) ranging from 0.10 percent per annum to 0.30 percent per annum multiplied by the undrawn aggregate commitments of the Term Lenders in respect of the Term Loan Facility, accruing during the period commencing on December 15, 2016 and ending on the earlier of the date on which the loans are drawn.

The Term Loan Agreement contains customary representations, warranties and affirmative and negative covenants for facilities of its type, including financial covenants, events of default and indemnification provisions in favor of the Term Lenders. The negative covenants include restrictions regarding the incurrence of liens, the incurrence of indebtedness by our subsidiaries and fundamental changes, subject to certain exceptions in each case. The financial covenants require us to meet a quarterly financial test with respect to a minimum consolidated interest coverage ratio of not less than 4.00 to 1.00 and a maximum consolidated leverage ratio of not greater than 3.50 to 1.00. At September 30, 2017, the Company was in compliance with these covenants.

On February 28, 2017, Cboe made a draw under the Term Loan Agreement in the amount of $1.0 billion. Cboe used the proceeds to finance a portion of the cash component of the aggregate consideration for the Merger, repaid certain existing indebtedness of Bats, paid fees and expenses incurred in connection with the transactions contemplated by the Merger Agreement, funded working capital needs, and for other general corporate purposes. Loans under the Term Loan Agreement mature five years following the closing date of the Merger.

On June 29, 2017, Cboe refinanced approximately $300 million of the amounts outstanding under the Term Loan Agreement through the issuance of $300 million in aggregate principal amount of 1.950% Senior Notes.

1.950% Senior Notes due 2019

On June 29, 2017, the Company issued $300 million aggregate principal amount of 1.950% Senior Notes. The form and terms of the 1.950% Senior Notes were established pursuant to an Officer’s Certificate, dated as of June 29, 2017, supplementing the Indenture (as defined below). Underwriter fees of $0.8 million were also capitalized and netted against long-term debt in the consolidated balance sheet, while other issuance fees of $0.9 million were expensed and are included in debt issuance costs on the consolidated statement of income for the nine months ended September 30, 2017.

The Company used the net proceeds from the 1.950% Senior Notes to repay amounts under the Term Loan Agreement. The 1.950% Senior Notes mature on June 28, 2019 and bear interest at the rate of 1.950% per annum, payable semi-annually in arrears on June 28 and December 28 of each year, commencing December 28, 2017. The 1.950% Senior Notes are unsecured obligations of the Company and rank equally with all of the Company’s other existing and future unsecured, senior indebtedness, but are effectively junior to the Company’s secured indebtedness, to the extent of the value of the assets securing such indebtedness, and will be structurally subordinated to the secured and unsecured indebtedness of the Company’s subsidiaries.

The Company has the option to redeem some or all of the 1.950% Senior Notes, at any time in whole or from time to time in part, at the redemption prices set forth in the Officer’s Certificate. The Company may also be required to offer to repurchase the 1.950% Senior Notes upon the occurrence of a Change of Control Triggering Event (as such term is defined in the Officer’s Certificate) at a repurchase price equal to 101% of the aggregate principal amount of 1.950% Senior Notes to be repurchased.

3.650% Senior Notes due 2027

On January 12, 2017, the Company entered into an indenture (the “Indenture”), by and between the Company and Wells Fargo Bank, National Association, as trustee, in connection with the issuance of $650 million aggregate principal amount of the Company’s 3.650% Senior Notes. The form and terms of the 3.650% Senior Notes were established pursuant to an Officer’s Certificate, dated as of January 12, 2017, supplementing the Indenture.

The Company used a portion of the net proceeds from the 3.650% Senior Notes to fund, in part, the Merger, including the payment of related fees and expenses and the repayment of Bats’ existing indebtedness, and the remainder for general corporate purposes. The 3.650% Senior Notes mature on January 12, 2027 and bear interest at the rate of 3.650% per annum, payable semi-annually in arrears on January 12 and July 12 of each year, commencing July 12, 2017. The 3.650% Senior Notes are unsecured obligations of the Company and rank equally with all of the Company’s other existing and future unsecured, senior indebtedness, but are effectively junior to the Company’s secured indebtedness, to the extent of the value of the assets securing such indebtedness, and will be structurally subordinated to the secured and unsecured indebtedness of the Company’s subsidiaries.

The Company has the option to redeem some or all of the 3.650% Senior Notes, at any time in whole or from time to time in part, at the redemption prices set forth in the Officer’s Certificate. The Company may also be required to offer to repurchase the 3.650% Senior Notes upon the occurrence of a Change of Control Triggering Event (as such term is defined in the Officer’s Certificate) at a repurchase price equal to 101% of the aggregate principal amount of 3.650% Senior Notes to be repurchased.

Indenture

Under the Indenture, the Company may issue debt securities, which includes the Notes, at any time and from time to time, in one or more series without limitation on the aggregate principal amount. The Indenture governing the Notes contains customary restrictions, including a limitation that restricts our ability and the ability of certain of our subsidiaries to create or incur secured debt. Such Indenture also limits certain sale and leaseback transactions and contains customary events of default. At September 30, 2017, the Company was in compliance with these covenants.

Revolving Credit Agreement

On December 15, 2016, the Company, as borrower, entered into a Credit Agreement (the “Revolving Credit Agreement”) with Bank of America, N.A., as administrative agent and as swing line lender, certain lenders named therein (the “Revolving Lenders”), Merrill Lynch, Pierce, Fenner & Smith Incorporated, as sole lead arranger and sole bookrunner, Morgan Stanley MUFG Loan Partners, LLC, as syndication agent, and Citibank, N.A., PNC Bank, National Association and JPMorgan Chase Bank, N.A., as co-documentation agents.

The Revolving Credit Agreement provides for a senior unsecured $150 millionfive-year revolving credit facility (the “Revolving Credit Facility”) that includes a $25 million swing line sub-facility. The Company may also, subject to the agreement of the applicable lenders, increase the commitments under the Revolving Credit Facility by up to $100 million, for a total of $250 million. Subject to specified conditions, the Company may designate one or more of its subsidiaries as additional borrowers under the Revolving Credit Agreement provided that it guarantees all borrowings and other obligations of any such subsidiaries. As of September 30, 2017, no subsidiaries were designated as additional borrowers.

Funds borrowed under the Revolving Credit Agreement may be used to fund working capital and for other general corporate purposes. As of September 30, 2017, no borrowings were outstanding under the Revolving Credit Agreement. Accordingly, at September 30, 2017, $150 million of borrowing capacity was available for the purposes permitted by the Revolving Credit Agreement.

Loans under the Revolving Credit Agreement will bear interest, at our option, at either (i) LIBOR periodically fixed for an interest period (as selected by us) of one, two, three or six months plus a margin (based on our public debt ratings) ranging from 1.00 percent per annum to 1.75 percent per annum or (ii) a daily floating rate based on our prime rate (subject to certain minimums based upon the federal funds effective rate or LIBOR) plus a margin (based on our public debt ratings) ranging from zero percent per annum to 0.75 percent per annum.

Subject to certain conditions stated in the Revolving Credit Agreement, the Company may borrow, prepay and reborrow amounts under the Revolving Credit Facility at any time during the term of the Revolving Credit Agreement. The Revolving Credit Agreement will terminate and all amounts owing thereunder will be due and payable on December 15, 2021, unless the commitments are terminated earlier, either at our request or, if an event of default occurs, by the Revolving Lenders (or automatically in the case of certain bankruptcy-related events). The Revolving Credit Agreement contains customary representations, warranties and affirmative and negative covenants for facilities of its type, including financial covenants, events of default and indemnification provisions in favor of the Revolving Lenders. The negative covenants include restrictions regarding the incurrence of liens, the incurrence of indebtedness by our subsidiaries and fundamental changes, subject to certain exceptions in each case. The financial covenants require us to meet a quarterly financial test with respect to a minimum consolidated interest coverage ratio of not less than 4.00 to 1.00 and a maximum consolidated leverage ratio of not greater than 3.50 to 1.00. At September 30, 2017, the Company was in compliance with these covenants.

Bridge Facility

In connection with entering into the Merger Agreement, the Company entered into a commitment letter with Bank of America, N.A. and Merrill Lynch, Pierce, Fenner & Smith Incorporated (or any of its designated affiliates) (Bank of America, N.A., and other such financial institutions that accede as lender to such debt commitment letter in accordance with its terms are referred to herein as the “Lenders”), which provides that, subject to the satisfaction and waiver of certain conditions which are usual and customary for financing of this type, the Lenders are committed to provide debt financing for the purposes of funding (i) the cash consideration to be paid in the transactions contemplated by the Merger Agreement, (ii) the refinancing of certain existing indebtedness of Bats and its subsidiaries and (iii) related fees and expenses, which debt financing consists of a senior unsecured 364-day bridge loan facility in an aggregate principal amount of up to $1.65 billion to the extent the Company fails to generate gross cash proceeds in an aggregate principal amount of up to $1.65 billion from permanent financing including in the form of a senior unsecured term loan facility and the issuance of senior unsecured notes on or prior to the consummation of the transaction contemplated by the Merger Agreement.  The Company paid commitment and structuring fees of $6.0 million. Through September 30, 2017, the Company has amortized $6.0 million of these fees as a result of the Company entering into more permanent debt arrangements. The Company entered into a term loan agreement and completed a notes offering, as described below, securing $1.65 billion to finance the cash portion of its acquisition of Bats as well as the repayment of Bats' existing indebtedness. As a result of securing the financing discussed above, the bridge facility was terminated.

Loan and Notes Payments and Contractual Interest

The future expected loan repayments related to the Term Loan Agreement and the Notes as of September 30, 2017 is as follows (in millions):

2017	$	—
2018	—
2019	300.0
2020	—
2021	—
Thereafter	1,025.0
Principal amounts repayable	1,325.0
Debt issuance cost	(7.1		)
Unamortized discount on Notes	(5.5		)
Total debt outstanding	$	1,312.4

Interest expense recognized on the Term Loan Agreement and the Notes is included in interest expense, net in the condensed consolidated statements of income, for the three and nine months ended September 30, 2017 and 2016 is as follows (in millions):

	Three Months Ended September 30,					Nine Months Ended September 30,
	2017			2016		2017			2016
Components of interest expense:
Contractual interest	$	10.5		$	0.2	$	29.0		$	0.2
Amortization of debt discount	0.3			—		0.6			—
Amortization of debt issuance cost	0.2			—		2.5			—
Interest expense	11.0			0.2		32.1			0.2
Interest income	(0.5		)	—		(1.2		)	—
Interest expense, net	$	10.5		$	0.2	$	30.9		$	0.2

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ACCUMULATED OTHER COMPREHENSIVE INCOME, NET

9 Months Ended

Sep. 30, 2017

Equity [Abstract]

ACCUMULATED OTHER COMPREHENSIVE INCOME, NET

ACCUMULATED OTHER COMPREHENSIVE INCOME, NET

The following represents the changes in accumulated other comprehensive income by component (in millions):

	Foreign		Unrealized					Total Other
	Currency		Investment		Post-Retirement			Comprehensive
	Translation		Gain/Loss		Benefits			Income
Balance at December 31, 2016	$	—	$	—	$	(0.8	)	$	(0.8	)
Other comprehensive income	50.7		0.1		—			50.8
Balance at September 30, 2017	$	50.7	$	0.1	$	(0.8	)	$	50.0

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FAIR VALUE MEASUREMENTS

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASURMENTS

Fair value is the price that would be received upon the sale of an asset or paid upon the transfer of a liability in an orderly transaction between market participants at the measurement date and in the principal or most advantageous market for that asset or liability. The fair value should be calculated based on assumptions that market participants would use in pricing the asset or liability, not on assumptions specific to the entity. In addition, the fair value of liabilities should include consideration of non-performance risk, including the Company’s own credit risk.

The Company applied Financial Accounting Standards Board ASC 820, Fair Value Measurement and Disclosure, which provides guidance for using fair value to measure assets and liabilities by defining fair value and establishing the framework for measuring fair value. ASC 820 applies to financial and nonfinancial instruments that are measured and reported on a fair value basis. The three-level hierarchy of fair value measurements is based on whether the inputs to those measurements are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company’s market assumptions. The fair-value hierarchy requires the use of observable market data when available and consists of the following levels:

• Level 1—Unadjusted inputs based on quoted markets for identical assets or liabilities.

• Level 2—Observable inputs, either direct or indirect, not including Level 1, corroborated by market data or based upon quoted prices in non-active markets.

• Level 3—Unobservable inputs that reflect management’s best assumptions of what market participants would use in valuing the asset or liability.

The Company has included a tabular disclosure for financial assets and liabilities that are measured at fair value on a recurring basis in the condensed consolidated balance sheet as of September 30, 2017 and December 31, 2016.

Instruments Measured at Fair Value on a Recurring Basis

The following tables presents the Company’s fair value hierarchy for those assets measured at fair value on a recurring basis as of September 30, 2017 and December 31, 2016 (in millions):

	September 30, 2017
	Total		Level 1		Level 2		Level 3
Assets:
Trading securities:
U.S. Treasury securities	$	0.5	$	0.5	$	—	$	—
Other securities	1.9		1.9		—		—
Money market funds	1.5		1.5		—		—
Total assets	$	3.9	$	3.9	$	—	$	—
Liabilities:
Contingent consideration liability	$	56.6	$	—	$	—	$	56.6
Total liabilities	$	56.6	$	—	$	—	$	56.6

	December 31, 2016
	Total		Level 1		Level 2		Level 3
Assets:
Money market funds	$	67.5	$	67.5	$	—	$	—
Total assets	$	67.5	$	67.5	$	—	$	—

The following is a description of the Company’s valuation methodologies used for instruments measured at fair value on a recurring basis:

Available-for-sale and trading securities

Financial investments classified as trading and available‑for‑sale consist of highly liquid U.S. Treasury securities. These securities are valued by obtaining feeds from a number of live data sources, including active market makers and inter‑dealer brokers and therefore categorized as Level 1.

Contingent consideration liability

In connection with the acquisition of Bats, the Company acquired a contingent consideration arrangement with the former owners of Cboe FX. The fair value of this liability at September 30, 2017 was $56.6 million.  That value is based on estimates of discounted future cash payments, a significant unobservable input, and is considered a Level 3 measurement.

Fair Value of Financial Instruments

The following table presents the Company’s fair value hierarchy for those financial instruments held by the Company as of September 30, 2017 and December 31, 2016 (in millions):

	September 30, 2017
	Total		Level 1		Level 2		Level 3
Assets:
Cash and cash equivalents	$	124.8	$	124.8	$	—	$	—
Trading investments	2.4		2.4		—		—
Available-for-sale investments	—		—		—		—
Accounts receivable	195.8		195.8		—		—
Income tax receivable	35.2		35.2		—		—
Total assets	$	358.2	$	358.2	$	—	$	—
Liabilities:
Accounts payable	$	38.9	$	—	$	38.9	$	—
Section 31 fees payable	25.4		—		25.4		—
Contingent consideration liability	56.6		—		—		56.6
Long-term debt	1,312.4		—		1,312.4		—
Total liabilities	$	1,433.3	$	—	$	1,376.7	$	56.6

	December 31, 2016
	Total		Level 1		Level 2		Level 3
Assets:
Cash and cash equivalents	$	97.3	$	97.3	$	—	$	—
Accounts receivable	76.7		76.7		—		—
Income tax receivable	53.7		53.7		—		—
Total assets	$	227.7	$	227.7	$	—	$	—
Liabilities:
Accounts payable	$	6.5	$	—	$	6.5	$	—
Total liabilities	$	6.5	$	—	$	6.5	$	—

The carrying amounts of cash and cash equivalents, accounts receivable, income tax receivable, accounts payable and Section 31 fees payable approximate fair value due to their liquid or short-term nature.

Long-term debt

The carrying amount of long-term debt approximates its fair value based on quoted LIBOR at September 30, 2017 and is considered a Level 2 measurement.

Information on Level 3 Financial Liabilities

The following table sets forth a summary of changes in the fair value of the Company’s Level 3 financial liabilities during the nine months ended September 30, 2017.

	Level 3 Financial Liabilities for the Nine Months Ended September 30, 2017
	Balance at Beginning of Period		Acquired During Period		Settlements		Balances at end of period
Liabilities
Contingent consideration liability	$	—	$	56.6	$	—	$	56.6
Total Liabilities	$	—	$	56.6	$	—	$	56.6

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REDEEMABLE NONCONTROLLING INTEREST

9 Months Ended

Sep. 30, 2017

Temporary Equity Disclosure [Abstract]

REDEEMABLE NONCONTROLLING INTEREST

REDEEMABLE NONCONTROLLING INTEREST

Redeemable noncontrolling interest are reported on the consolidated balance sheets in mezzanine equity in Redeemable Noncontrolling Interest. The Company recognizes changes to the redemption value of redeemable noncontrolling interest as they occur and adjust the carrying value to equal the redemption value at the end of each reporting period. The resulting increases or decreases in the estimated redemption amount are affected by corresponding charges or credits against retained earnings, or in the absence of retained earnings, additional paid in capital. The redemption amounts have been estimated based on the fair value of the majority-owned subsidiary, determined based on a weighting of the discounted cash flow and other economic factors.

For the nine months endedSeptember 30, 2017, the following reflects changes in our redeemable noncontrolling interest (in millions):

	Redeemable Noncontrolling Interest
Balance as at December 31, 2016	$	12.6
Decrease due to acquiring additional equity in Vest	(3.2		)
Net loss attributable to redeemable noncontrolling interest	(0.8		)
Redemption value adjustment	0.8
Balance as at September 30, 2017	$	9.4

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SEGMENT REPORTING

9 Months Ended

Sep. 30, 2017

Segment Reporting [Abstract]

SEGMENT REPORTING

SEGMENT REPORTING

The Company previously operated as a single reportable business segment as of December 31, 2016. As a result of the Bats acquisition, beginning in 2017, the Company is reporting five segments: Options, U.S. Equities, Futures, European Equities, and Global FX, which is reflective of how the Company's chief operating decision-maker reviews and operates the business (Note 1). This change has been reflected in all periods presented. Segment performance is primarily based on operating income (loss). The Company has aggregated all of its corporate costs, acquisition-related costs, as well as other business ventures, within the Corporate Items and Eliminations unit based on the decision that those activities should not be used to evaluate the segment's operating performance; however, operating expenses that relate to activities of a specific segment have been allocated to that segment. 

The Options segment includes our options exchange business, which lists for trading options on market indexes (index options), mostly on an exclusive basis, as well as on non-exclusive "multiply-listed" options, such as options on the stocks of individual corporations (equity options) and options on other exchange-traded products (ETP options), such as exchange-traded funds (ETF options) and exchange-traded notes (ETN options) that occur on Cboe Options, C2, BZX and EDGX. It also includes the listed equity options routed transaction services that occur on Trading.

The U.S. Equities segment includes listed cash equities and ETP transaction services that occur on BZX, BYX, EDGX and EDGA. It also includes market data fees generated from the U.S. tape plans as well as fees generated from the sale of proprietary market data of these exchanges. It also includes the listed cash equities and ETPs routed transaction services, the listings business where ETPs are listed on BZX, and advertising activity from ETF.com.

The Futures segment includes the business of our futures exchange, CFE, which includes offering for trading futures on the VIX Index and other futures products.

The European Equities segment includes the pan‑European listed cash equities transaction services, ETPs, exchange‑traded commodities, and international depository receipts that occur on the Recognised Investment Exchange, operated by Cboe Europe Equities. It also includes the listed cash equities and ETPs routed transaction services that occur on Cboe Chi-X Europe, as well as the listings business where ETPs can be listed on Cboe Europe Equities.

The Global FX segment includes institutional FX trading services that occur on the Cboe FX platform, as well as non-deliverable forward FX transactions executed on Cboe SEF.

Summarized financial data of reportable segments was as follows (in millions):

												Corporate
			U.S.				European					items and
	Options		Equities		Futures		Equities		Global FX			eliminations			Total
Three months ended September 30, 2017
Revenues	$	224.8	$	308.5	$	40.3	$	26.3	$	11.3		$	0.2		$	611.4
Operating income (loss)	64.3		29.9		35.4		2.7		(3.5		)	(9.5		)	119.3
Three months ended September 30, 2016
Revenues	$	139.2	$	—	$	29.5	$	—	$	—		$	—		$	168.7
Operating income (loss)	42.6		—		25.5		—		—			(2.3		)	65.8

												Corporate
			U.S.				European					items and
	Options		Equities		Futures		Equities		Global FX			eliminations			Total
Nine Months Ended September 30, 2017
Revenues	$	651.0	$	759.8	$	107.7	$	63.2	$	26.2		$	0.5		$	1,608.4
Operating income (loss)	190.5		75.4		94.7		7.8		(8.8		)	(96.4		)	263.2
Nine Months Ended September 30, 2016
Revenues	$	426.8	$	—	$	85.5	$	—	$	—		$	—		$	512.3
Operating income (loss)	158.5		—		72.2		—		—			(7.4		)	223.3

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EMPLOYEE BENEFITS

9 Months Ended

Sep. 30, 2017

Compensation and Retirement Disclosure [Abstract]

EMPLOYEE BENEFITS

EMPLOYEE BENEFITS

Legacy Cboe and new employees are eligible to participate in the Cboe Options SMART Plan (“SMART Plan”). The SMART Plan is a defined contribution plan, which is qualified under Internal Revenue Code Section 401(k). In addition, eligible employees may participate in the Supplemental Employee Retirement Plan, Executive Retirement Plan and Deferred Compensation Plan. Effective January 1, 2017, the Executive Retirement Plan is closed to new executive officers and employees. Each plan is a defined contribution plan that is non-qualified under Internal Revenue Code. The Company contributed $1.3 million and $1.5 million million to the defined contribution plans for the three months ended September 30, 2017 and 2016, respectively, and $5.1 million and $4.2 million, respectively, to the defined contribution plans for the nine months ended September 30, 2017 and 2016, respectively. For the nine months ended September 30, 2017, $1.2 million of this expense was related to the acquisition of Bats and is included in acquisition-related costs in the condensed consolidated statements of income. The remaining expense is included in compensation and benefits in the condensed consolidated statements of income.

Upon completion of the Merger, the Company assumed Bats' defined contribution plan that offers a 401(k) retirement plan eligible to legacy Bats U.S. employees. Under the plan, the Company matches participating employee contributions dollar for dollar of up to five percent of salary.  The Company’s contribution amounted to $0.6 million and $1.1 million for the three and nine months ended September 30, 2017, respectively. This expense is included in compensation and benefits in the condensed consolidated statements of income.

The Company also assumed the Cboe Europe Equities employee‑selected stakeholder contribution plan upon completion of the Merger. The Company matches participating employee contributions of up to five percent of salary. Employees of Cboe Europe Equities are eligible to participate. The Company’s contribution amounted to $0.1 million and $0.3 million for the three and nine months ended September 30, 2017, respectively. This expense is included in compensation and benefits in the condensed consolidated statements of income.

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REGULATORY CAPITAL

9 Months Ended

Sep. 30, 2017

Brokers and Dealers [Abstract]

REGULATORY CAPITAL

REGULATORY CAPITAL

As a  broker‑dealer registered with the SEC, Trading is subject to the SEC’s Uniform Net Capital Rule (Rule 15c3‑1), which requires the maintenance of minimum net capital, as defined therein. The SEC’s requirement also provides that equity capital may not be withdrawn or a cash dividend paid if certain minimum net capital requirements are not met. Trading computes the net capital requirements under the basic method provided for in Rule 15c3‑1.

As of September 30, 2017, Trading is required to maintain net capital equal to the greater of 6.67% of aggregate indebtedness items, as defined, or $0.1 million. At September 30, 2017, Trading had net capital of $11.9 million, which was $11.5 million in excess of its required net capital of $0.4 million.

As entities regulated by the FCA, Cboe Europe Equities is subject to the Financial Resource Requirement ("FRR") and Cboe Chi-X Europe is subject to the Capital Resources Requirement ("CRR"). As a RIE, Cboe Europe Equities computes its FRR in accordance with its Financial Risk Assessment, as agreed by the FCA. This FRR was $20.1 million at September 30, 2017. At September 30, 2017, Cboe Europe Equities had capital in excess of its required FRR of $23.9 million.

As a Banks, Investment firms, PRUdential (BIPRU) 50k firm, as defined by the Markets in Financial Instruments Directive of the FCA, Cboe Chi‑X Europe computes its CRR as the greater of the base requirement of $0.1 million at September 30, 2017, or the summation of the credit risk, market risk and fixed overheads requirements, as defined. At September 30, 2017, Cboe Chi‑X Europe had capital in excess of its required CRR of $0.4 million.

As a swap execution facility regulated by the CFTC, Cboe SEF is required to meet two capital adequacy tests: (i) its financial resources must be equal to at least twelve months of its projected operating costs and (ii) its unencumbered, liquid financial assets must be equal to at least six months of its projected operating costs. As of September 30, 2017, Cboe SEF had annual operating expenses of $1.4 million and had financial resources that exceeded this amount. Additionally, as of September 30, 2017, Cboe SEF had projected operating expenses from six months of $0.7 million and had unencumbered, liquid financial assets that exceeded this amount.

As a designated contract market regulated by the CFTC, CFE is required to meet two capital adequacy tests: (i) its financial resources must be equal to at least twelve months of its projected operating costs and (ii) its unencumbered, liquid financial assets must be equal to at least six months of its projected operating costs. As of September 30, 2017, CFE had annual projected operating expenses of $19.2 million and had financial resources that exceeded this amount. Additionally, as of September 30, 2017, CFE had projected operating expenses for six months of $9.6 million and had unencumbered, liquid financial assets that exceeded this amount.

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STOCK-BASED COMPENSATION

9 Months Ended

Sep. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

STOCK-BASED COMPENSATION

STOCK-BASED COMPENSATION

Stock-based compensation is based on the fair value of the award on the date of grant, which is recognized over the related service period, net of actual forfeitures. The service period is the period over which the related service is performed, which is generally the same as the vesting period. In the first quarter of 2017, the Company adopted ASU 2016-09, Compensation — Stock Compensation. This ASU simplifies several aspects of the accounting for stock-based payment transactions (See Note 1).

On February 19, 2017, the Company granted 251,273 restricted stock units ("RSUs"), each of which entitles the holder to one share of common stock upon vesting, to certain officers and employees at a fair value of $80.40 per share. The RSUs vest ratably over three years, with one-third vesting on each anniversary of the grant date, and vesting accelerates upon the occurrence of a change in control. Unvested RSUs will be forfeited if the officer or employee leaves the Company prior to the applicable vesting date, except in limited circumstances. The RSUs have no voting rights but entitle the holder to receive dividend equivalents.

On February 28, 2017, the Company granted 68,254 RSUs, each of which entitles the holder to one share of common stock upon vesting, to certain officers and employees at a fair value of $78.05 per share. The RSUs vest ratably over three years, with one-third vesting on each anniversary of the grant date, and vesting accelerates upon the occurrence of a change in control. Unvested RSUs will be forfeited if the officer or employee leaves the Company prior to the applicable vesting date, except in limited circumstances. The RSUs have no voting rights but entitle the holder to receive dividend equivalents.

On February 28, 2017, the Company granted 49,703 RSUs, each of which entitles the holder to one share of common stock upon vesting, to certain officers and employees at a fair value of $78.05 per share. The RSUs vest on the third anniversary of the grant date, and vesting accelerates upon the occurrence of a change in control. Unvested RSUs will be forfeited if the officer or employee leaves the Company prior to the applicable vesting date, except in limited circumstances. The RSUs have no voting rights but entitle the holder to receive dividend equivalents.

The Merger Agreement provided that the number of shares of Cboe common stock into which each such award of Cboe Restricted Shares is converted will be equal to the number of shares of Bats common stock subject to the corresponding Bats Restricted Share award multiplied by the exchange ratio, which is the sum of (a) 0.3201 of a share of Cboe common stock and (b) the quotient obtained by dividing $10.00 by the volume-weighted average price, rounded to four decimal places, of shares of Cboe common stock on NASDAQ for the ten consecutive trading day period ending on the second full trading day prior to the effective time of the merger. The remaining service period will be completed post-merger and future vesting and expense will be recognized accordingly. Pursuant to the Merger Agreement, each award of restricted Bats common stock (“Bats restricted shares”) granted under any of the Bats Plans that was unvested immediately prior to the Effective Time was assumed by the Registrant and converted into awards of restricted shares totaling 622,527 of Common Stock at a fair value of $78.05 per share.

In addition, on February 19, 2017 and February 28, 2017, the Company granted 41,481 and 19,255 RSUs, respectively, contingent on the achievement of performance conditions at a fair value of $111.00 and $102.00, respectively, per RSU, related to total shareholder return during the performance period. The Company used the Monte Carlo valuation model method to estimate the fair value of the total shareholder return RSUs which incorporated the following assumptions: risk-free interest rate (0.90)%, three-year volatility (21.1)% and three year correlation with S&P 500 Index (0.41). Each of these performance shares has a performance condition under which the number of units ultimately awarded will vary from 0% to 200% of the original grant, with each unit representing the contingent right to receive one share of our common stock. The vesting period for the RSUs contingent on the achievement of performance is three years. For each of the performance awards, the RSUs will be settled in shares of our common stock following vesting of the RSU assuming that the participant has been continuously employed during the vesting period, subject to acceleration in the event of a change in control of the Company or in the event of a participant’s earlier death or disability. Participants have no voting rights with respect to the RSUs until the issuance of the shares of stock. Dividends are accrued by the Company and will be paid once the RSUs contingent on the achievement of performance conditions vest.

On May 18, 2017, the Company granted 15,405 shares of stock, at a fair value of $84.41 per share, to non employee

members of the board of directors. The shares have a one-year vesting period and vesting accelerates upon the occurrence of a

change in control of the Company. Unvested portions of the stock will be forfeited if the director leaves the Company prior to

the applicable vesting date.

On May 15, 2017, the Company granted 2,655 RSUs, each of which entitles the holder to one share of common stock upon vesting, to certain officers and employees at a fair value $85.00 per share. On August 15, 2017, the Company granted 1,612 RSUs at a fair value of $97.54 per share. The RSUs vest ratably over three-years , with one-third vesting on each anniversary of the grant date, and vesting accelerates upon the occurrence of a change in control. Unvested RSUs will be forfeited if the officer or employee leaves the Company prior to the applicable vesting date, except in limited circumstances. The RSUs have no voting rights but entitle the holder to receive dividend equivalents.

The Company recognized stock-based compensation expense of $9.1 million and $3.8 million for the three months ended September 30, 2017 and 2016, respectively, and $39.1 million and $10.9 million for the nine months ended September 30, 2017 and 2016. Stock-based compensation expense includes $9.1 million of accelerated expense recorded in the first quarter for certain officers and employees as a result of attaining certain age and service based requirements in our long-term incentive plan and award agreements. Stock-based compensation expense is included in compensation and benefits and acquisition-related costs in the condensed consolidated statements of income.

Pursuant to the Merger Agreement, each outstanding option to purchase Bats common stock (each, a “Bats stock option”) granted under any of the Bats Global Markets, Inc. 2009 Stock Option Plan, the Bats Global Markets, Inc. Third Amended and Restated 2012 Equity Incentive Plan and the Bats Global Markets, Inc. 2016 Omnibus Incentive Plan (collectively, the “Bats Plans”) that was outstanding immediately prior to the effective time of the Merger (the “Effective Time”) was converted into an option to purchase Common Stock, on the same terms and conditions (including vesting schedule) as were applicable to such Bats stock option (but taking into account any changes, including any acceleration of vesting of such Bats stock option occurring by reason of the transactions contemplated by the Merger Agreement). The number of shares of Common Stock subject to each such converted stock option equals the number of shares of Bats common stock subject to the corresponding Bats stock option immediately prior to the Effective Time, multiplied by the exchange ratio (as defined below) (subject to certain adjustments and rounding). The exercise price per share for each such converted stock option equals the per share exercise price specified in the corresponding Bats stock option divided by the exchange ratio (rounded up to the nearest cent). The “exchange ratio” is equal to 0.4452, which equals the sum of 0.3201 plus the fraction obtained by dividing $10.00 by the volume-weighted average price, rounded to four decimal points, of a share of Common Stock on NASDAQ for the ten consecutive trading days ended February 24, 2017.

Pursuant to the Merger Agreement, each award of restricted Bats common stock (“Bats restricted shares”) granted under any of the Bats Plans that was unvested immediately prior to the Effective Time was assumed by the Company and converted into an award of restricted shares of Common Stock, subject to the same terms and conditions (including vesting schedule) that applied to the applicable Bats restricted shares immediately prior to the Effective Time (but taking into account any changes, including any acceleration of vesting of such Bats restricted shares, occurring by reason provided for in the Merger Agreement). The number of shares of Common Stock subject to each such converted award of Bats restricted shares equals the number of shares of Bats common stock subject to the corresponding Bats restricted share award multiplied by the exchange ratio (as defined above).

The activity in the Company's stock options, restricted stock and restricted stock units for the nine months ended September 30, 2017 was as follows:

Stock Options

Summary stock option activity is presented below:

	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (years)	Aggregate Intrinsic Value (in millions)
Outstanding, December 31, 2016					—
Granted	683,390		$	22.45	4.8 years	$	40.1
Exercised	(231,003	)	$	18.50
Outstanding and expected to vest at September 30, 2017	452,387		$	25.13	5.4 years	$	37.3
Exercisable at September 30, 2017	371,318		$	24.48	5.0 years	$	31.8

The Company estimated the grant date fair value of options awarded during 2017 using the Black-Scholes valuation

model with the following assumptions:

	2017
Expected term (in years)	4.2
Expected volatility	19.8%
Expected dividend yield	1.3%
Risk-free rate	1.78%
Forfeiture rate	—%

Summary of the status of nonvested options is presented below:

Nonvested Options	Options	Weighted Average Grant-Date Fair Value
January 1, 2017 - Nonvested	—	$	—
Vested	—	—
Granted	81,068	49.17
Forfeited	—	—
September 30, 2017 - Nonvested	81,068	$	49.17

In the nine months ended September 30, 2017, to satisfy employee's tax obligations and cash exercise payment due upon the election to exercise 231,003 stock options, the Company purchased 65,302 shares at a cost of $6.0 million.

As of September 30, 2017, there were $2.3 million in total unrecognized compensation costs related to stock options. These costs are expected to be recognized over a weighted average period of 1.2 years as the stock options vest.

Restricted Stock and Restricted Stock Units

Summary restricted stock activity is presented below:

	Number of Shares		Weighted Average Grant Date Fair Value
Nonvested stock at December 31, 2016	480,595		$	63.64
Granted	1,091,843		78.94
Vested	(386,717	)	64.88
Forfeited	(5,442	)	73.43
Nonvested stock at September 30, 2017	1,180,279		$	77.26

In the nine months ended September 30, 2017, to satisfy employees' tax obligations upon the vesting of restricted stock, the Company purchased 144,807 shares totaling $12.0 million as the result of the vesting of 386,717 shares of restricted stock.

As of September 30, 2017, there were $55.6 million in total unrecognized compensation costs related to restricted stock and restricted stock units. These costs are expected to be recognized over a weighted average period of 2.0 years.

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INCOME TAXES

9 Months Ended

Sep. 30, 2017

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXES

The Company records income tax expense during interim periods based on the best estimate of the full year’s tax rate as adjusted for discrete items, if any, that are taken into account in the relevant interim period.  Each quarter, the Company updates its estimate of the annual effective tax rate and any change in the estimated rate is recorded on a cumulative basis.  

The effective tax rate from continuing operations was 43.1% and 39.9% for the three months ended September 30, 2017 and 2016, respectively. The increase in the effective tax rate for the three months ended September 30, 2017 against the comparable period in the prior year was primarily due to a re-measurement of our deferred tax assets and liabilities as a result of a 1.75% corporate income tax rate increase in Illinois enacted on July 6, 2017.

The effective tax rate from continuing operations was 37.7% and 39.3% for the nine months ended September 30, 2017 and 2016, respectively. The decrease in the effective tax rate for the nine months ended September 30, 2017 against the comparable period in the prior year was primarily due to discrete events during the nine-month period, mainly the re-measurement of tax reserves and excess tax benefits associated with the exercise and vesting of stock-based compensation.

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NET INCOME PER COMMON SHARE

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

NET INCOME PER COMMON SHARE

NET INCOME PER COMMON SHARE

The computation of basic net income allocated to common stockholders is calculated by reducing net income for the period by dividends paid or declared and undistributed net income for the period that are allocated to participating securities to arrive at net income allocated to common stockholders. Net income allocated to common stockholders is divided by the weighted average number of common shares outstanding during the period to determine net income per share allocated to common stockholders.

The computation of diluted earnings per share is calculated by dividing net income allocated to common stockholders by the sum of the weighted average number of common shares outstanding plus all additional common shares that would have been outstanding if the potentially dilutive common shares had been issued. The dilutive effect is calculated using the more dilutive of the two-class or treasury stock method.

Additionally, the change in the redemption value for the noncontrolling interest reduces net income allocated to common shareholders.

The following table reconciles net income allocated to common stockholders and the number of shares used to calculate the basic and diluted net income per common share for the three and nine months ended September 30, 2017 and 2016:

	Three Months Ended September 30,						Nine Months Ended September 30,
(in millions, except per share amounts)	2017			2016			2017			2016
Basic EPS Numerator:
Net Income	$	60.3		$	40.5		$	143.5		$	140.6
Loss attributable to noncontrolling interest	0.2			0.3			0.8			0.8
Net Income Excluding Noncontrolling Interest	60.5			40.8			144.3			141.4
Change in redemption value of noncontrolling interest	(0.2		)	(0.3		)	(0.8		)	(0.8		)
Earnings allocated to participating securities	(0.6		)	(0.2		)	(1.4		)	(0.6		)
Net Income Allocated to Common Stockholders	$	59.7		$	40.3		$	142.1		$	140.0
Basic EPS Denominator:
Weighted average shares outstanding	112.3			81.3			105.5			81.5
Basic Net Income Per Common Share	$	0.53		$	0.50		$	1.35		$	1.72
Diluted EPS Numerator:
Net Income	$	60.3		$	40.5		$	143.5		$	140.6
Loss attributable to noncontrolling interest	0.2			0.3			0.8			0.8
Net Income Excluding Noncontrolling Interest	60.5			40.8			144.3			141.4
Change in redemption value of noncontrolling interest	(0.2		)	(0.3		)	(0.8		)	(0.8		)
Earnings allocated to participating securities	(0.6		)	(0.2		)	(1.4		)	(0.6		)
Net Income Allocated to Common Stockholders	$	59.7		$	40.3		$	142.1		$	140.0
Diluted EPS Denominator:
Weighted average shares outstanding	112.3			81.3			105.5			81.5
Dilutive common shares issued under stock program	0.3			—			0.3			—
Total Dilutive Weighted Average Shares	112.6			81.3			105.8			$	81.5
Diluted Net Income Per Common Share	$	0.53		$	0.50		$	1.34		$	1.72

For the periods presented, the Company did not have shares of stock-based compensation that would have an anti-dilutive effect on the computation of diluted net income per common share.

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COMMITMENTS AND CONTINGENCIES

9 Months Ended

Sep. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES

Legal Proceedings

As of September 30, 2017, the Company was subject to the various legal proceedings and claims discussed below, as well as certain other legal proceedings and claims that have not been fully resolved and that have arisen in the ordinary course of business.

The Company reviews its legal proceedings and claims, regulatory reviews and inspections and other legal proceedings on an ongoing basis and follows appropriate accounting guidance when making accrual and disclosure decisions. The Company establishes accruals for those contingencies where the incurrence of a loss is probable and can be reasonably estimated, and the Company discloses the amount accrued and the amount of a reasonably possible loss in excess of the amount accrued, if such disclosure is necessary for our financial statements to not be misleading. The Company does not record liabilities when the likelihood that the liability has been incurred is probable, but the amount cannot be reasonably estimated, or when the liability is believed to be only reasonably possible or remote. The Company's assessment of whether a loss is reasonably possible or probable is based on its assessment of the ultimate outcome of the matter following all appeals.

As of September 30, 2017, the Company does not believe that there is a reasonable possibility that any material loss exceeding the amounts already recognized for these reviews, inspections or other legal proceedings, if any, has been incurred. While the consequences of certain unresolved proceedings are not presently determinable, the outcome of any litigation is inherently uncertain and an adverse outcome from certain matters could have a material effect on our earnings in any given reporting period. However, in the opinion of management, the ultimate liability is not expected to have a material effect on our financial position, liquidity or capital resources.

There have been no material changes during the period covered by this Form 10-Q from the legal proceedings disclosures in our Annual Report on Form 10-K for the year ended December 31, 2016.

Contractual Obligations

The Company currently leases office space, data centers and remote network operations centers, with lease terms remaining ranging from three months to one hundred months as of September 30, 2017. Total rent expense related to these lease obligations, reflected in technology support services and facilities costs line items on the condensed consolidated statements of income, for the three months ended September 30, 2017 and 2016 were $2.2 million and $0.4 million, respectively, and $5.7 million and $1.0 million, for the nine months ended September 30, 2017 and 2016, respectively.

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SUBSEQUENT EVENTS

9 Months Ended

Sep. 30, 2017

Subsequent Events [Abstract]

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS

On October 27, 2017, the Company announced that its board of directors declared a quarterly cash dividend of $0.27 per share. The dividend is payable December 15, 2017 to stockholders of record at the close of business on December 1, 2017.

There have been no additional subsequent events that would require disclosure in, or adjustment to, the condensed consolidated financial statements as of and for the nine months ended September 30, 2017.

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ORGANIZATION AND BASIS OF PRESENTATION (Policies)

9 Months Ended

Sep. 30, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

These interim unaudited condensed consolidated financial statements have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016.

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities, valuation of redeemable noncontrolling interests and reported amounts of revenues and expenses. On an ongoing basis, management evaluates its estimates based upon historical experience, observance of trends, information available from outside sources and various other assumptions that management believes to be reasonable under the circumstances. Actual results may differ from these estimates under different conditions or assumptions.

In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of financial position, results of operations and cash flows at the dates and for the periods presented have been included.

The results of operations for interim periods are not necessarily indicative of the results of operations for the full year.

For those consolidated subsidiaries in which the Company's ownership is less than 100% and for which the Company has control over the assets and liabilities and the management of the entity, the outside stockholders' interest are shown as non-controlling interests.

In 2017, the Company changed the presentation of liquidity payments to be a cost of revenues, which historically had been netted against transaction fees. The Company also changed the presentation of royalty fees to be a cost of revenues. The presentation of routing fees and costs were also changed. Routing fees were presented in transaction fees in total revenues and routing and clearing costs in total cost of revenues. These fees were previously presented as a net operating expense. These changes were made to conform to current presentation and the changes have been reflected in all periods presented.

Segment information

Segment information

The Company previously operated as a single reportable business segment. As a result of the Bats acquisition on February 28, 2017 (Note 3), the Company is reporting five business segments: Options, U.S. Equities, Futures, European Equities, and Global FX, which is reflective of how the Company's chief operating decision-maker reviews and operates the business (Note 15). This change has been reflected in all periods presented.

Recent Adopted Accounting Pronouncements

Recent Accounting Pronouncements - Adopted

In the first quarter of 2017, the Company adopted Accounting Standards Update (ASU) 2014-09, Revenue from Contracts with Customers (Topic 606). Under the ASU, revenue is recognized when a customer obtains control of promised goods or services in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services. In addition, the standard requires disclosure of the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The Company applied the five-step method outlined in the ASU to all revenue streams and elected the full retrospective implementation method. The additional disclosures required by the ASU have been included in Note 2.

In the first quarter of 2017, the Company adopted ASU 2016-09, Compensation — Stock Compensation. This ASU simplifies several aspects of the accounting for stock-based payment transactions, including the recognition of excess tax benefits and deficiencies, the classification of those excess tax benefits on the statement of cash flows, an accounting policy election for forfeitures, the amount an employer can withhold to cover income taxes and still qualify for equity classification and the classification of those taxes paid on the statement of cash flows. The Company has chosen to use the actual forfeiture rate and applied the prospective transition method for excess tax benefits and employees taxes paid. As of the adoption date,the Company did not have any awards classified as a liability under the previous guidance.

In the first quarter of 2017, the Company adopted ASU 2016-16, Accounting for Income Taxes:Intra-Entity Transfers of Assets other than Inventory. The ASU requires that the income tax impact of intra-entity sales and transfers of property, except for inventory, be recognized when the transfer occurs. The Company applied the full retrospective application which did not result in any impact to the financial statements.

Recent Accounting Pronouncements - Issued, not yet Adopted

In May 2017, the FASB issued ASU 2017-09, Compensation - Stock Compensation (Topic 718) that provides additional guidance around which changes to a share-based payment award requires an entity to apply modification accounting. Specifically, an entity is to account for the effects of a modification, unless all of the following are satisfied: (1) the fair value (or calculated value or intrinsic value, if such an alternative measurement method is used) of the modified award is the same as the fair value (or calculated value or intrinsic value, if such an alternative measurement method is used) of the original award immediately before the original award is modified; (2) the vesting conditions of the modified award are the same as the vesting conditions of the original award immediately before the original award is modified; and (3) the classification of the modified award as an equity instrument or as a liability instrument is the same as the classification of the original award immediately before the original award is modified. For public entities, the update is effective beginning after December 15, 2017. Early adoption is permitted. The Company is in the process of evaluating this guidance and assessing the impact the ASU could have on the consolidated financial statements.

In March 2017, the FASB issued ASU 2017-07, Compensation - Retirement Benefits (Topic 715). This ASU requires an employer to report the service cost component in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations. For public entities, the update is effective beginning after December 15, 2017. Early adoption is permitted. The Company is in the process of evaluating this guidance and assessing the impact the ASU could have on the consolidated financial statements.

In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805)-Clarifying the Definition of a Business. ASU No. 2017-01 clarifies the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. There are three elements of a business: inputs, processes, and outputs. While an integrated set of assets and activities (collectively, a “set”) that is a business usually has outputs, outputs are not required to be present. Additionally, all of the inputs and processes that a seller uses in operating a set are not required if market participants can acquire the set and continue to produce outputs. ASU No. 2017-01 provides a screen to determine when a set is not a business. The screen requires that when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. This screen reduces the number of transactions that need to be further evaluated. If, however, the screen is not met, then the amendments in this ASU (1) require that to be considered a business, a set must include, at a minimum, an input and a substantive process that together significantly contribute to the ability to create output and (2) remove the evaluation of whether a market participant could replace missing elements. Finally, the amendments in this ASU narrow the definition of the term “output” so that it is consistent with the manner in which outputs are described in Topic 606 - Revenue from Contracts with Customers. For public entities, the update is effective for annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2018. Early adoption is permitted under certain circumstances. The Company is in the process of evaluating this guidance and assessing the impact the ASU could have on the consolidated financial statements.

In January 2017, the FASB issued ASU 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This ASU simplifies the manner in which an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. Step 2 measures a goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount of that goodwill. In computing the implied fair value of goodwill under Step 2, an entity, prior to the amendments in ASU No. 2017-04, had to perform procedures to determine the fair value at the impairment testing date of its assets and liabilities, including unrecognized assets and liabilities, in accordance with the procedure that would be required in determining the fair value of assets acquired and liabilities assumed in a business combination. However, under this ASU, an entity should (1) perform its annual or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount, and (2) recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value, with the understanding that the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. Additionally, ASU No. 2017-04 removes the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails such qualitative test, to perform Step 2 of the goodwill impairment test. For public entities, the update is effective for annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company is in the process of evaluating this guidance and assessing the impact the ASU could have on the consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02, Leases. This update requires a lessee to recognize on the balance sheet a liability to make lease payments and a corresponding right-of-use asset. The guidance also requires certain qualitative and quantitative disclosures about the amount, timing and uncertainty of cash flows arising from leases. This update is effective for annual and interim periods beginning after December 15, 2018. Early adoption is permitted. The Company is in the process of evaluating this guidance and assessing the impact the ASU could have on the consolidated financial statements.

In September 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230) — Classification of Certain Cash Receipts and Cash Payments (a consensus of the FASB Emerging Issues Task Force). ASU No. 2016-15 addresses eight specific cash flow issues in an effort to reduce diversity in practice: (1) debt prepayment or debt extinguishment costs; (2) settlement of zero-coupon bonds; (3) contingent consideration payments made after a business combination; (4) proceeds from the settlement of insurance claims; (5) proceeds from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies; (6) distributions received from equity method investees; (7) beneficial interests in securitization transactions; and (8) separately identifiable cash flows and application of the predominance principle. The ASU is effective for the Company for fiscal years beginning after December 15, 2017, and for the interim periods within that fiscal year. Early adoption is permitted, including adoption during an interim period. The Company is in the process of evaluating this guidance and assessing the impact the ASU could have on the consolidated financial statements.

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REVENUE RECOGNITION (Tables)

9 Months Ended

Sep. 30, 2017

Deferred Revenue Disclosure [Abstract]

Schedule of Revenue by Product Line and Segment

All revenue recognized in the income statement is considered to be revenue from contracts with customers. The following table depicts the disaggregation of revenue according to product line and segment (in millions):

											Corporate
			U.S.				European		Global		Items and
	Options		Equities		Futures		Equities		FX		Eliminations		Total
Three months ended September 30, 2017
Transaction fees	$	172.3	$	185.5	$	36.6	$	19.0	$	9.9	$	—	$	423.3
Access fees	14.4		12.5		0.4		2.0		0.8		—		30.1
Exchange services and other fees	10.0		5.7		2.5		1.3		0.5		—		20.0
Market data fees	10.0		33.1		0.8		2.8		0.1		—		46.8
Regulatory fees	13.7		69.8		—		—		—		—		83.5
Other revenue	4.4		1.9		—		1.2		—		0.2		7.7
	$	224.8	$	308.5	$	40.3	$	26.3	$	11.3	$	0.2	$	611.4
Timing of revenue recognition
Services transferred at a point in time	$	190.4	$	257.2	$	36.6	$	20.2	$	9.9	$	0.2	$	514.5
Services transferred over time	34.4		51.3		3.7		6.1		1.4		—		96.9
	$	224.8	$	308.5	$	40.3	$	26.3	$	11.3	$	0.2	$	611.4
Three months ended September 30, 2016
Transaction fees	$	97.9	$	—	$	26.6	$	—	$	—	$	—	$	124.5
Access fees	12.8		—		0.2		—		—		—		13.0
Exchange services and other fees	9.4		—		2.0		—		—		—		11.4
Market data fees	7.6		—		0.7		—		—		—		8.3
Regulatory fees	9.1		—		—		—		—		—		9.1
Other revenue	2.4		—		—		—		—		—		2.4
	$	139.2	$	—	$	29.5	$	—	$	—	$	—	$	168.7

											Corporate
			U.S.				European		Global		Items and
	Options		Equities		Futures		Equities		FX		Eliminations		Total
Nine months ended September 30, 2017
Transaction fees	$	493.7	$	470.5	$	99.3	$	47.0	$	23.1	$	—	$	1,133.6
Access fees	40.6		29.4		1.4		4.4		1.8		—		77.6
Exchange services and other fees	33.0		13.6		4.7		2.9		1.1		—		55.3
Market data fees	30.9		78.1		1.6		6.5		0.2		—		117.3
Regulatory fees	41.1		164.0		—		—		—		—		205.1
Other revenue	11.7		4.2		0.7		2.4		—		0.5		19.5
	$	651.0	$	759.8	$	107.7	$	63.2	$	26.2	$	0.5	$	1,608.4
Timing of revenue recognition
Services transferred at a point in time	$	546.5	$	638.7	$	100.0	$	49.4	$	23.1	$	0.5	$	1,358.2
Services transferred over time	104.5		121.1		7.7		13.8		3.1		—		250.2
	$	651.0	$	759.8	$	107.7	$	63.2	$	26.2	$	0.5	$	1,608.4
Nine months ended September 30, 2016
Transaction fees	$	302.2	$	—	$	76.1	$	—	$	—	$	—	$	378.3
Access fees	38.8		—		0.6		—		—		—		39.4
Exchange services and other fees	28.3		—		5.9		—		—		—		34.2
Market data fees	22.2		—		2.3		—		—		—		24.5
Regulatory fees	27.4		—		—		—		—		—		27.4
Other revenue	7.9		—		0.6		—		—		—		8.5
	$	426.8	$	—	$	85.5	$	—	$	—	$	—	$	512.3

Schedule of Contract Liabilities

The revenue recognized from contract liabilities and the remaining balance is shown below (in millions):

	January 1, 2017		Cash Additions		Revenue Recognition			September 30, 2017
Liquidity provider sliding scale (1)	$	—	$	12.0	$	(9.0	)	$	3.0
Other, net	3.1		12.9		(7.6		)	8.4
Total deferred revenue	$	3.1	$	24.9	$	(16.6	)	$	11.4

(1)  Liquidity providers are eligible to participate in the sliding scale program, which involves prepayment of transaction fees, and to receive reduced fees based on the achievement of certain volume thresholds within a calendar month. These transaction fees are amortized and recorded ratably as the transactions occur over the period.

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ACQUISITIONS (Tables)

9 Months Ended

Sep. 30, 2017

Business Combinations [Abstract]

Schedule of Fair Value of Consideration Transferred

The acquisition-date fair value of the consideration transferred totaled $4.0 billion, which consisted of the following (in millions):

Cash	$	955.5
Common stock issued	2,387.3
Equity awards issued	37.4
	3,380.2
Debt extinguished	580.0
Total consideration paid	$	3,960.2

Schedule of Estimated Fair Values of Assets Acquired and Liabilities Assumed

The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the acquisition date (in millions):

Cash and cash equivalents	$	130.1
Accounts receivable	117.8
Financial investments	66.0
Property and equipment	21.8
Other assets	32.8
Goodwill	2,651.0
Intangibles	2,000.0
Accounts payable	(33.7		)
Accrued expenses	(26.2		)
Section 31 fees payable	(143.6		)
Income tax payable	(52.9		)
Deferred tax liability	(720.3		)
Other liabilities	(82.6		)
	$	3,960.2

Schedule of Finite-Lived and Indefinite-Lived Intangible Assets Acquired

The intangible assets were assigned to the Options, U.S. Equities, European Equities, and Global FX segments in the following manner and will be amortized over the following useful lives:

			U.S.		European				Useful life
(amounts in millions)	Options		Equities		Equities		Global FX		(years)
Trading registrations and licenses	$	95.5	$	572.7	$	171.8	$	—	indefinite
Customer relationships	37.1		222.9		160.0		140.0		20
Market data customer relationships	53.6		322.0		60.0		64.4		15
Technology	22.5		22.5		22.5		22.5		7
Trademarks and trade names	1.0		6.0		1.8		1.2		2
Goodwill	226.4		1,738.1		419.3		267.2
	$	436.1	$	2,884.2	$	835.4	$	495.3

Schedule of Pro Forma Information

The financial information in the table below summarizes the combined results of operations of the Company and Bats, on a pro forma basis, as though the companies had been combined as of January 1, 2016. The pro forma financial information is presented for informational purposes only and is not indicative of the results of operations that would have been achieved if the acquisition had taken place at the beginning of the period presented. Such pro forma financial information is based on the historical financial statements of the Company and Bats. This pro forma financial information is based on estimates and assumptions that have been made solely for purposes of developing such pro forma information, including, without limitation, preliminary purchase accounting adjustments. The pro forma financial information does not reflect any synergies or operating cost reductions that may be achieved from the combined operations. The pro forma financial information combines the historical results for the Company and Bats for the three months ended September 30, 2016 and nine months ended September 30, 2017 and 2016 in the following table (in millions, except per share amounts): 

	Three Months Ended September 30,		Nine Months Ended September 30,
	2016		2017		2016
Revenue	$	610.3	$	1,881.3	$	1,930.9
Operating income	98.2		354.2		306.1
Net income allocated to common stockholders	52.6		201.3		170.1
Earnings per share:
Basic	$	0.47	$	1.79	$	1.51
Diluted	$	0.47	$	1.79	$	1.51

The amounts of revenue, operating income and net income of Bats are included in the Company’s condensed consolidated statements of income from the acquisition date to the three and nine months ended September 30, 2017 and are as follows (in millions):

	Three Months Ended September 30,		Nine Months Ended September 30,
	2017		2017
Revenue	$	411.6	$	1,017.4
Operating income	27.1		53.7
Net income	15.7		33.7

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SEVERANCE (Tables)

9 Months Ended

Sep. 30, 2017

Restructuring and Related Activities [Abstract]

Summary of Employee Termination Benefits

The following is a summary of the employee termination benefits recognized within acquisition costs in the Corporate Items and Eliminations unit in the condensed consolidated statements of income (in millions):

	Employee Termination Benefits
Balance at December 31, 2016	$	0.4
Termination benefits accrued	20.7
Termination payments made	(19.7		)
Balance at September 30, 2017	$	1.4

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INVESTMENTS (Tables)

9 Months Ended

Sep. 30, 2017

Investments, Debt and Equity Securities [Abstract]

Schedule of Equity Method Investments

As of September 30, 2017 and December 31, 2016, the Company's investments were comprised of the following (in millions):

	September 30, 2017		December 31, 2016
Equity Method:
Investment in Signal Trading Systems, LLC	$	13.4	$	12.4
Investment in EuroCCP	9.2		—
Total equity method investments	22.6		12.4
Cost Method:
Investment in OCC	30.3		30.3
Other cost method investments	30.3		30.2
Total cost method investments	60.6		60.5
Total Investments	$	83.2	$	72.9

Schedule of Cost Method Investments

As of September 30, 2017 and December 31, 2016, the Company's investments were comprised of the following (in millions):

	September 30, 2017		December 31, 2016
Equity Method:
Investment in Signal Trading Systems, LLC	$	13.4	$	12.4
Investment in EuroCCP	9.2		—
Total equity method investments	22.6		12.4
Cost Method:
Investment in OCC	30.3		30.3
Other cost method investments	30.3		30.2
Total cost method investments	60.6		60.5
Total Investments	$	83.2	$	72.9

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FINANCIAL INVESTMENTS (Tables)

9 Months Ended

Sep. 30, 2017

Investments, Debt and Equity Securities [Abstract]

Schedule of Financial Investments

The Company’s financial investments with original or acquired maturities longer than three months, but that mature in less than one year from the condensed consolidated balance sheet date and any money market funds that are considered cash and cash equivalents are classified as current assets and are summarized as follows (in millions):

	September 30, 2017
	Cost basis		Unrealized gains		Unrealized losses		Fair value
Trading securities:
U.S. Treasury securities	$	0.5	$	—	$	—	$	0.5
Other securities	1.9		—		—		1.9
Money market funds	1.5		—		—		1.5
Total	$	3.9	$	—	$	—	$	3.9

	December 31, 2016
	Cost basis		Unrealized gains		Unrealized losses		Fair value
Money market funds	$	67.5	$	—	$	—	$	67.5
Total	$	67.5	$	—	$	—	$	67.5

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PROPERTY AND EQUIPMENT, NET (Tables)

9 Months Ended

Sep. 30, 2017

Property, Plant and Equipment [Abstract]

Schedule of Property and Equipment, Net

Property and equipment consisted of the following as of September 30, 2017 and December 31, 2016 (in millions):

	September 30,			December 31,
	2017			2016
Construction in progress	$	11.5		$	0.2
Building	77.4			77.0
Furniture and equipment	168.2			138.8
Total property and equipment	257.1			216.0
Less accumulated depreciation	(179.9		)	(160.1		)
Total property and equipment, net	$	77.2		$	55.9

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OTHER ASSETS, NET (Tables)

9 Months Ended

Sep. 30, 2017

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of Other Assets, Net

Other assets, net consisted of the following as of September 30, 2017 and December 31, 2016 (in millions):

	September 30,			December 31,
	2017			2016
Software development work in progress	$	5.9		$	12.3
Data processing software	217.0			222.6
Less accumulated depreciation	(184.9		)	(172.0		)
Data processing software, net	38.0			62.9
Other assets (1)	14.0			9.8
Data processing software and other assets, net	$	52.0		$	72.7

(1) At December 31, 2016, other assets included $6.2 million of deferred financing costs and $3.5 million of deferred tax assets. The deferred financing costs were reclassified in 2017 and recorded as a reduction of long-term debt. At September 30, 2017, the majority of the balance included long-term prepaid assets and notes receivable.

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GOODWILL AND INTANGIBLE ASSETS, NET (Tables)

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill Details by Segment

The following table presents the details of goodwill by segment (in millions): 

				U.S.		European		Global		Corporate Items
	Options			Equities		Equities		FX		and Eliminations		Total
Balance as of December 31, 2016	$	7.7		$	—	$	—	$	—	$	18.8	$	26.5
Additions	226.4			1,738.1		419.3		267.2		—		2,651.0
Dispositions	(1.4		)	—		—		—		—		(1.4		)
Changes in foreign currency exchange rates	—			—		20.2		—		—		20.2
Balance as of September 30, 2017	$	232.7		$	1,738.1	$	439.5	$	267.2	$	18.8	$	2,696.3

Schedule of Indefinite-lived Intangible Assets

The following table presents the details of the intangible assets (in millions):

				U.S.			European			Global			Corporate Items
	Options			Equities			Equities			FX			and Eliminations			Total
Balance as of December 31, 2016	$	2.0		$	—		$	—		$	—		$	6.7		$	8.7
Additions	209.7			1,146.1			416.1			228.1			—			2,000.0
Dispositions	(0.2		)	—			—			—			—			(0.2		)
Amortization	(10.5		)	(52.0		)	(16.5		)	(20.0		)	(0.9		)	(99.9		)
Changes in foreign currency exchange rates	—			—			31.6			—			—			31.6
Balance as of September 30, 2017	$	201.0		$	1,094.1		$	431.2		$	208.1		$	5.8		$	1,940.2

The following tables present the categories of intangible assets as of September 30, 2017 and December 31, 2016 (in millions):

																Remaining
	September 30, 2017															Weighted Average
				U.S.			European						Corporate Items			Amortization
	Options			Equities			Equities			Global FX			and Eliminations			Period (in years)
Trading registrations and licenses	$	95.5		$	572.7		$	185.1		$	—		$	—		Indefinite
Customer relationships	37.9			222.9			172.4			140.0			3.0			19
Market data customer relationships	53.6			322.0			64.6			64.4			—			14
Technology	23.4			22.5			24.2			22.5			4.0			6
Trademarks and tradenames	1.4			6.0			1.9			1.2			1.0			2
Other	0.2			—			—			—			—			2
Accumulated amortization	(11.0		)	(52.0		)	(17.0		)	(20.0		)	(2.2		)
	$	201.0		$	1,094.1		$	431.2		$	208.1		$	5.8

													Remaining
	December 31, 2016												Weighted Average
				U.S.		European				Corporate			Amortization
	Options			Equities		Equities		Global FX		and Other			Period (in years)
Trading registrations and licenses	$	—		$	—	$	—	$	—	$	—		—
Customer relationships	0.9			—		—		—		3.0			9
Market data customer relationships	—			—		—		—		—			—
Technology	1.1			—		—		—		4.0			4
Trademarks and tradenames	0.4			—		—		—		1.0			6
Other	0.2			—		—		—		—			2
Accumulated amortization	(0.6		)	—		—		—		(1.3		)
	$	2.0		$	—	$	—	$	—	$	6.7

Schedule of Definite-lived Intangible Assets

The following table presents the details of the intangible assets (in millions):

				U.S.			European			Global			Corporate Items
	Options			Equities			Equities			FX			and Eliminations			Total
Balance as of December 31, 2016	$	2.0		$	—		$	—		$	—		$	6.7		$	8.7
Additions	209.7			1,146.1			416.1			228.1			—			2,000.0
Dispositions	(0.2		)	—			—			—			—			(0.2		)
Amortization	(10.5		)	(52.0		)	(16.5		)	(20.0		)	(0.9		)	(99.9		)
Changes in foreign currency exchange rates	—			—			31.6			—			—			31.6
Balance as of September 30, 2017	$	201.0		$	1,094.1		$	431.2		$	208.1		$	5.8		$	1,940.2

The following tables present the categories of intangible assets as of September 30, 2017 and December 31, 2016 (in millions):

																Remaining
	September 30, 2017															Weighted Average
				U.S.			European						Corporate Items			Amortization
	Options			Equities			Equities			Global FX			and Eliminations			Period (in years)
Trading registrations and licenses	$	95.5		$	572.7		$	185.1		$	—		$	—		Indefinite
Customer relationships	37.9			222.9			172.4			140.0			3.0			19
Market data customer relationships	53.6			322.0			64.6			64.4			—			14
Technology	23.4			22.5			24.2			22.5			4.0			6
Trademarks and tradenames	1.4			6.0			1.9			1.2			1.0			2
Other	0.2			—			—			—			—			2
Accumulated amortization	(11.0		)	(52.0		)	(17.0		)	(20.0		)	(2.2		)
	$	201.0		$	1,094.1		$	431.2		$	208.1		$	5.8

													Remaining
	December 31, 2016												Weighted Average
				U.S.		European				Corporate			Amortization
	Options			Equities		Equities		Global FX		and Other			Period (in years)
Trading registrations and licenses	$	—		$	—	$	—	$	—	$	—		—
Customer relationships	0.9			—		—		—		3.0			9
Market data customer relationships	—			—		—		—		—			—
Technology	1.1			—		—		—		4.0			4
Trademarks and tradenames	0.4			—		—		—		1.0			6
Other	0.2			—		—		—		—			2
Accumulated amortization	(0.6		)	—		—		—		(1.3		)
	$	2.0		$	—	$	—	$	—	$	6.7

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ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Tables)

9 Months Ended

Sep. 30, 2017

Payables and Accruals [Abstract]

Schedule of Accounts Payable and Accrued Liabilities

Accounts payable and accrued liabilities consisted of the following as of September 30, 2017 and December 31, 2016 (in millions):

	September 30, 2017		December 31, 2016
Compensation and benefit-related liabilities	$	13.9	$	25.1
Termination benefits	1.4		0.4
Royalties	19.7		17.8
Accrued liabilities	58.4		25.4
Marketing fee payable	8.1		7.2
Accounts payable	38.9		6.5
Total accounts payable and accrued liabilities	$	140.4	$	82.4

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DEBT (Tables)

9 Months Ended

Sep. 30, 2017

Debt Disclosure [Abstract]

Schedule of Long-term Debt

The Company's long-term debt consisted of the following as of September 30, 2017 and December 31, 2016 (in millions):

	September 30,		December 31,
	2017		2016
Term Loan Agreement	$	369.6	$	—
3.650% Senior Notes	643.8		—
1.950% Senior Notes	299.0		—
Revolving Credit Agreement	—		—
Total long-term debt	$	1,312.4	$	—

Schedule of Maturities of Long-term Debt

The future expected loan repayments related to the Term Loan Agreement and the Notes as of September 30, 2017 is as follows (in millions):

2017	$	—
2018	—
2019	300.0
2020	—
2021	—
Thereafter	1,025.0
Principal amounts repayable	1,325.0
Debt issuance cost	(7.1		)
Unamortized discount on Notes	(5.5		)
Total debt outstanding	$	1,312.4

Schedule of Interest Expense

Interest expense recognized on the Term Loan Agreement and the Notes is included in interest expense, net in the condensed consolidated statements of income, for the three and nine months ended September 30, 2017 and 2016 is as follows (in millions):

	Three Months Ended September 30,					Nine Months Ended September 30,
	2017			2016		2017			2016
Components of interest expense:
Contractual interest	$	10.5		$	0.2	$	29.0		$	0.2
Amortization of debt discount	0.3			—		0.6			—
Amortization of debt issuance cost	0.2			—		2.5			—
Interest expense	11.0			0.2		32.1			0.2
Interest income	(0.5		)	—		(1.2		)	—
Interest expense, net	$	10.5		$	0.2	$	30.9		$	0.2

XML

ACCUMULATED OTHER COMPREHENSIVE INCOME, NET (Tables)

9 Months Ended

Sep. 30, 2017

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income, Net

The following represents the changes in accumulated other comprehensive income by component (in millions):

	Foreign		Unrealized					Total Other
	Currency		Investment		Post-Retirement			Comprehensive
	Translation		Gain/Loss		Benefits			Income
Balance at December 31, 2016	$	—	$	—	$	(0.8	)	$	(0.8	)
Other comprehensive income	50.7		0.1		—			50.8
Balance at September 30, 2017	$	50.7	$	0.1	$	(0.8	)	$	50.0

XML

FAIR VALUE MEASUREMENTS (Tables)

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Schedule of Fair Value Hierarchy for Assets Measured at Fair Value on a Recurring Basis

The following tables presents the Company’s fair value hierarchy for those assets measured at fair value on a recurring basis as of September 30, 2017 and December 31, 2016 (in millions):

	September 30, 2017
	Total		Level 1		Level 2		Level 3
Assets:
Trading securities:
U.S. Treasury securities	$	0.5	$	0.5	$	—	$	—
Other securities	1.9		1.9		—		—
Money market funds	1.5		1.5		—		—
Total assets	$	3.9	$	3.9	$	—	$	—
Liabilities:
Contingent consideration liability	$	56.6	$	—	$	—	$	56.6
Total liabilities	$	56.6	$	—	$	—	$	56.6

	December 31, 2016
	Total		Level 1		Level 2		Level 3
Assets:
Money market funds	$	67.5	$	67.5	$	—	$	—
Total assets	$	67.5	$	67.5	$	—	$	—

Schedule of Fair Value Hierarchy of Financial Instruments Held

The following table presents the Company’s fair value hierarchy for those financial instruments held by the Company as of September 30, 2017 and December 31, 2016 (in millions):

	September 30, 2017
	Total		Level 1		Level 2		Level 3
Assets:
Cash and cash equivalents	$	124.8	$	124.8	$	—	$	—
Trading investments	2.4		2.4		—		—
Available-for-sale investments	—		—		—		—
Accounts receivable	195.8		195.8		—		—
Income tax receivable	35.2		35.2		—		—
Total assets	$	358.2	$	358.2	$	—	$	—
Liabilities:
Accounts payable	$	38.9	$	—	$	38.9	$	—
Section 31 fees payable	25.4		—		25.4		—
Contingent consideration liability	56.6		—		—		56.6
Long-term debt	1,312.4		—		1,312.4		—
Total liabilities	$	1,433.3	$	—	$	1,376.7	$	56.6

	December 31, 2016
	Total		Level 1		Level 2		Level 3
Assets:
Cash and cash equivalents	$	97.3	$	97.3	$	—	$	—
Accounts receivable	76.7		76.7		—		—
Income tax receivable	53.7		53.7		—		—
Total assets	$	227.7	$	227.7	$	—	$	—
Liabilities:
Accounts payable	$	6.5	$	—	$	6.5	$	—
Total liabilities	$	6.5	$	—	$	6.5	$	—

Summary of Changes in the Fair Value of the Company's Level 3 Financial Liabilities

The following table sets forth a summary of changes in the fair value of the Company’s Level 3 financial liabilities during the nine months ended September 30, 2017.

	Level 3 Financial Liabilities for the Nine Months Ended September 30, 2017
	Balance at Beginning of Period		Acquired During Period		Settlements		Balances at end of period
Liabilities
Contingent consideration liability	$	—	$	56.6	$	—	$	56.6
Total Liabilities	$	—	$	56.6	$	—	$	56.6

XML

REDEEMABLE NONCONTROLLING INTEREST (Tables)

9 Months Ended

Sep. 30, 2017

Temporary Equity Disclosure [Abstract]

Schedule of Redeemable Noncontrolling Interest

For the nine months endedSeptember 30, 2017, the following reflects changes in our redeemable noncontrolling interest (in millions):

	Redeemable Noncontrolling Interest
Balance as at December 31, 2016	$	12.6
Decrease due to acquiring additional equity in Vest	(3.2		)
Net loss attributable to redeemable noncontrolling interest	(0.8		)
Redemption value adjustment	0.8
Balance as at September 30, 2017	$	9.4

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SEGMENT REPORTING (Tables)

9 Months Ended

Sep. 30, 2017

Segment Reporting [Abstract]

Summarized Financial Information by Reportable Segment

Summarized financial data of reportable segments was as follows (in millions):

												Corporate
			U.S.				European					items and
	Options		Equities		Futures		Equities		Global FX			eliminations			Total
Three months ended September 30, 2017
Revenues	$	224.8	$	308.5	$	40.3	$	26.3	$	11.3		$	0.2		$	611.4
Operating income (loss)	64.3		29.9		35.4		2.7		(3.5		)	(9.5		)	119.3
Three months ended September 30, 2016
Revenues	$	139.2	$	—	$	29.5	$	—	$	—		$	—		$	168.7
Operating income (loss)	42.6		—		25.5		—		—			(2.3		)	65.8

												Corporate
			U.S.				European					items and
	Options		Equities		Futures		Equities		Global FX			eliminations			Total
Nine Months Ended September 30, 2017
Revenues	$	651.0	$	759.8	$	107.7	$	63.2	$	26.2		$	0.5		$	1,608.4
Operating income (loss)	190.5		75.4		94.7		7.8		(8.8		)	(96.4		)	263.2
Nine Months Ended September 30, 2016
Revenues	$	426.8	$	—	$	85.5	$	—	$	—		$	—		$	512.3
Operating income (loss)	158.5		—		72.2		—		—			(7.4		)	223.3

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STOCK-BASED COMPENSATION (Tables)

9 Months Ended

Sep. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock Option Activity

Summary stock option activity is presented below:

	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (years)	Aggregate Intrinsic Value (in millions)
Outstanding, December 31, 2016					—
Granted	683,390		$	22.45	4.8 years	$	40.1
Exercised	(231,003	)	$	18.50
Outstanding and expected to vest at September 30, 2017	452,387		$	25.13	5.4 years	$	37.3
Exercisable at September 30, 2017	371,318		$	24.48	5.0 years	$	31.8

Fair Value Assumptions

The Company estimated the grant date fair value of options awarded during 2017 using the Black-Scholes valuation

model with the following assumptions:

	2017
Expected term (in years)	4.2
Expected volatility	19.8%
Expected dividend yield	1.3%
Risk-free rate	1.78%
Forfeiture rate	—%

Nonvested Options Activity

Summary of the status of nonvested options is presented below:

Nonvested Options	Options	Weighted Average Grant-Date Fair Value
January 1, 2017 - Nonvested	—	$	—
Vested	—	—
Granted	81,068	49.17
Forfeited	—	—
September 30, 2017 - Nonvested	81,068	$	49.17

Restricted Stock Activity

Summary restricted stock activity is presented below:

	Number of Shares		Weighted Average Grant Date Fair Value
Nonvested stock at December 31, 2016	480,595		$	63.64
Granted	1,091,843		78.94
Vested	(386,717	)	64.88
Forfeited	(5,442	)	73.43
Nonvested stock at September 30, 2017	1,180,279		$	77.26

XML

NET INCOME PER COMMON SHARE (Tables)

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Reconciliation of basic and diluted net income per common share

The following table reconciles net income allocated to common stockholders and the number of shares used to calculate the basic and diluted net income per common share for the three and nine months ended September 30, 2017 and 2016:

	Three Months Ended September 30,						Nine Months Ended September 30,
(in millions, except per share amounts)	2017			2016			2017			2016
Basic EPS Numerator:
Net Income	$	60.3		$	40.5		$	143.5		$	140.6
Loss attributable to noncontrolling interest	0.2			0.3			0.8			0.8
Net Income Excluding Noncontrolling Interest	60.5			40.8			144.3			141.4
Change in redemption value of noncontrolling interest	(0.2		)	(0.3		)	(0.8		)	(0.8		)
Earnings allocated to participating securities	(0.6		)	(0.2		)	(1.4		)	(0.6		)
Net Income Allocated to Common Stockholders	$	59.7		$	40.3		$	142.1		$	140.0
Basic EPS Denominator:
Weighted average shares outstanding	112.3			81.3			105.5			81.5
Basic Net Income Per Common Share	$	0.53		$	0.50		$	1.35		$	1.72
Diluted EPS Numerator:
Net Income	$	60.3		$	40.5		$	143.5		$	140.6
Loss attributable to noncontrolling interest	0.2			0.3			0.8			0.8
Net Income Excluding Noncontrolling Interest	60.5			40.8			144.3			141.4
Change in redemption value of noncontrolling interest	(0.2		)	(0.3		)	(0.8		)	(0.8		)
Earnings allocated to participating securities	(0.6		)	(0.2		)	(1.4		)	(0.6		)
Net Income Allocated to Common Stockholders	$	59.7		$	40.3		$	142.1		$	140.0
Diluted EPS Denominator:
Weighted average shares outstanding	112.3			81.3			105.5			81.5
Dilutive common shares issued under stock program	0.3			—			0.3			—
Total Dilutive Weighted Average Shares	112.6			81.3			105.8			$	81.5
Diluted Net Income Per Common Share	$	0.53		$	0.50		$	1.34		$	1.72

XML

ORGANIZATION AND BASIS OF PRESENTATION - Narrative (Details)	9 Months Ended
	Sep. 30, 2017 segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of reportable segments	5

XML

REVENUE RECOGNITION - Schedule of Revenue by Product Line and Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Segment Reporting Information [Line Items]
Revenues	$ 611.4	$ 168.7	$ 1,608.4	$ 512.3
Services transferred at a point in time
Segment Reporting Information [Line Items]
Revenues	514.5		1,358.2
Services transferred over time
Segment Reporting Information [Line Items]
Revenues	96.9		250.2
Corporate Items and Eliminations
Segment Reporting Information [Line Items]
Revenues	0.2	0.0	0.5	0.0
Corporate Items and Eliminations | Services transferred at a point in time
Segment Reporting Information [Line Items]
Revenues	0.2		0.5
Corporate Items and Eliminations | Services transferred over time
Segment Reporting Information [Line Items]
Revenues	0.0		0.0
Options | Operating Segments
Segment Reporting Information [Line Items]
Revenues	224.8	139.2	651.0	426.8
Options | Operating Segments | Services transferred at a point in time
Segment Reporting Information [Line Items]
Revenues	190.4		546.5
Options | Operating Segments | Services transferred over time
Segment Reporting Information [Line Items]
Revenues	34.4		104.5
U.S. Equities | Operating Segments
Segment Reporting Information [Line Items]
Revenues	308.5	0.0	759.8	0.0
U.S. Equities | Operating Segments | Services transferred at a point in time
Segment Reporting Information [Line Items]
Revenues	257.2		638.7
U.S. Equities | Operating Segments | Services transferred over time
Segment Reporting Information [Line Items]
Revenues	51.3		121.1
Futures | Operating Segments
Segment Reporting Information [Line Items]
Revenues	40.3	29.5	107.7	85.5
Futures | Operating Segments | Services transferred at a point in time
Segment Reporting Information [Line Items]
Revenues	36.6		100.0
Futures | Operating Segments | Services transferred over time
Segment Reporting Information [Line Items]
Revenues	3.7		7.7
European Equities | Operating Segments
Segment Reporting Information [Line Items]
Revenues	26.3	0.0	63.2	0.0
European Equities | Operating Segments | Services transferred at a point in time
Segment Reporting Information [Line Items]
Revenues	20.2		49.4
European Equities | Operating Segments | Services transferred over time
Segment Reporting Information [Line Items]
Revenues	6.1		13.8
Global FX | Operating Segments
Segment Reporting Information [Line Items]
Revenues	11.3	0.0	26.2	0.0
Global FX | Operating Segments | Services transferred at a point in time
Segment Reporting Information [Line Items]
Revenues	9.9		23.1
Global FX | Operating Segments | Services transferred over time
Segment Reporting Information [Line Items]
Revenues	1.4		3.1
Transaction fees
Segment Reporting Information [Line Items]
Revenues	423.3	124.5	1,133.6	378.3
Transaction fees | Corporate Items and Eliminations
Segment Reporting Information [Line Items]
Revenues	0.0	0.0	0.0	0.0
Transaction fees | Options | Operating Segments
Segment Reporting Information [Line Items]
Revenues	172.3	97.9	493.7	302.2
Transaction fees | U.S. Equities | Operating Segments
Segment Reporting Information [Line Items]
Revenues	185.5	0.0	470.5	0.0
Transaction fees | Futures | Operating Segments
Segment Reporting Information [Line Items]
Revenues	36.6	26.6	99.3	76.1
Transaction fees | European Equities | Operating Segments
Segment Reporting Information [Line Items]
Revenues	19.0	0.0	47.0	0.0
Transaction fees | Global FX | Operating Segments
Segment Reporting Information [Line Items]
Revenues	9.9	0.0	23.1	0.0
Access fees
Segment Reporting Information [Line Items]
Revenues	30.1	13.0	77.6	39.4
Access fees | Corporate Items and Eliminations
Segment Reporting Information [Line Items]
Revenues	0.0	0.0	0.0	0.0
Access fees | Options | Operating Segments
Segment Reporting Information [Line Items]
Revenues	14.4	12.8	40.6	38.8
Access fees | U.S. Equities | Operating Segments
Segment Reporting Information [Line Items]
Revenues	12.5	0.0	29.4	0.0
Access fees | Futures | Operating Segments
Segment Reporting Information [Line Items]
Revenues	0.4	0.2	1.4	0.6
Access fees | European Equities | Operating Segments
Segment Reporting Information [Line Items]
Revenues	2.0	0.0	4.4	0.0
Access fees | Global FX | Operating Segments
Segment Reporting Information [Line Items]
Revenues	0.8	0.0	1.8	0.0
Exchange services and other fees
Segment Reporting Information [Line Items]
Revenues	20.0	11.4	55.3	34.2
Exchange services and other fees | Corporate Items and Eliminations
Segment Reporting Information [Line Items]
Revenues	0.0	0.0	0.0	0.0
Exchange services and other fees | Options | Operating Segments
Segment Reporting Information [Line Items]
Revenues	10.0	9.4	33.0	28.3
Exchange services and other fees | U.S. Equities | Operating Segments
Segment Reporting Information [Line Items]
Revenues	5.7	0.0	13.6	0.0
Exchange services and other fees | Futures | Operating Segments
Segment Reporting Information [Line Items]
Revenues	2.5	2.0	4.7	5.9
Exchange services and other fees | European Equities | Operating Segments
Segment Reporting Information [Line Items]
Revenues	1.3	0.0	2.9	0.0
Exchange services and other fees | Global FX | Operating Segments
Segment Reporting Information [Line Items]
Revenues	0.5	0.0	1.1	0.0
Market data fees
Segment Reporting Information [Line Items]
Revenues	46.8	8.3	117.3	24.5
Market data fees | Corporate Items and Eliminations
Segment Reporting Information [Line Items]
Revenues	0.0	0.0	0.0	0.0
Market data fees | Options | Operating Segments
Segment Reporting Information [Line Items]
Revenues	10.0	7.6	30.9	22.2
Market data fees | U.S. Equities | Operating Segments
Segment Reporting Information [Line Items]
Revenues	33.1	0.0	78.1	0.0
Market data fees | Futures | Operating Segments
Segment Reporting Information [Line Items]
Revenues	0.8	0.7	1.6	2.3
Market data fees | European Equities | Operating Segments
Segment Reporting Information [Line Items]
Revenues	2.8	0.0	6.5	0.0
Market data fees | Global FX | Operating Segments
Segment Reporting Information [Line Items]
Revenues	0.1	0.0	0.2	0.0
Regulatory fees
Segment Reporting Information [Line Items]
Revenues	83.5	9.1	205.1	27.4
Regulatory fees | Corporate Items and Eliminations
Segment Reporting Information [Line Items]
Revenues	0.0	0.0	0.0	0.0
Regulatory fees | Options | Operating Segments
Segment Reporting Information [Line Items]
Revenues	13.7	9.1	41.1	27.4
Regulatory fees | U.S. Equities | Operating Segments
Segment Reporting Information [Line Items]
Revenues	69.8	0.0	164.0	0.0
Regulatory fees | Futures | Operating Segments
Segment Reporting Information [Line Items]
Revenues	0.0	0.0	0.0	0.0
Regulatory fees | European Equities | Operating Segments
Segment Reporting Information [Line Items]
Revenues	0.0	0.0	0.0	0.0
Regulatory fees | Global FX | Operating Segments
Segment Reporting Information [Line Items]
Revenues	0.0	0.0	0.0	0.0
Other revenue
Segment Reporting Information [Line Items]
Revenues	7.7	2.4	19.5	8.5
Other revenue | Corporate Items and Eliminations
Segment Reporting Information [Line Items]
Revenues	0.2	0.0	0.5	0.0
Other revenue | Options | Operating Segments
Segment Reporting Information [Line Items]
Revenues	4.4	2.4	11.7	7.9
Other revenue | U.S. Equities | Operating Segments
Segment Reporting Information [Line Items]
Revenues	1.9	0.0	4.2	0.0
Other revenue | Futures | Operating Segments
Segment Reporting Information [Line Items]
Revenues	0.0	0.0	0.7	0.6
Other revenue | European Equities | Operating Segments
Segment Reporting Information [Line Items]
Revenues	1.2	0.0	2.4	0.0
Other revenue | Global FX | Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 0.0	$ 0.0	$ 0.0	$ 0.0

XML

REVENUE RECOGNITION - Rollforward of Contract Liabilities (Details) $ in Millions	9 Months Ended
	Sep. 30, 2017 USD ($)
Movement in Deferred Revenue [Roll Forward]
January 1, 2017	$ 3.1
Cash Additions	24.9
Revenue Recognition	(16.6)
September 30, 2017	11.4
Liquidity provider sliding scale
Movement in Deferred Revenue [Roll Forward]
January 1, 2017	0.0
Cash Additions	12.0
Revenue Recognition	(9.0)
September 30, 2017	3.0
Other, net
Movement in Deferred Revenue [Roll Forward]
January 1, 2017	3.1
Cash Additions	12.9
Revenue Recognition	(7.6)
September 30, 2017	$ 8.4

XML

ACQUISITIONS - Narrative (Details) - USD ($)		3 Months Ended		9 Months Ended
	Feb. 28, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Business Acquisition [Line Items]
Common stock, par value (in USD per share)	$ 0.01	$ 0.01		$ 0.01		$ 0.01
Goodwill				$ 2,651,000,000
Finite-lived and indefinite-lived intangible assets acquired				2,000,000,000
Acquisition-related costs		$ 5,500,000	$ 8,600,000	75,400,000	$ 8,600,000
Compensation and benefits		50,400,000	28,300,000	148,200,000	83,900,000
Professional fees and outside services		17,600,000	12,700,000	48,900,000	41,000,000
Facilities expenses		2,900,000	1,300,000	7,700,000	4,200,000
Impact on net income (loss)		(60,300,000)	$ (40,500,000)	(143,500,000)	$ (140,600,000)
Bats Global Markets, Inc. | Voting Common Stock
Business Acquisition [Line Items]
Common stock, par value (in USD per share)	0.01
Bats Global Markets, Inc. | Non-voting Common Stock
Business Acquisition [Line Items]
Common stock, par value (in USD per share)	$ 0.01
Bats Global Markets, Inc.
Business Acquisition [Line Items]
Consideration transferred	$ 3,960,200,000
Share price, measurement period	10 days
Share price (in USD per share)	$ 79.9289
Goodwill expected to be deductible for tax purposes	$ 0
Fair value of accounts receivable acquired	117,800,000
Gross value of accounts receivable acquired	118,000,000
Allowance for doubtful accounts	200,000
Acquisition-related costs		5,500,000		75,400,000
Bats Global Markets, Inc. | Acquisition-related Costs
Business Acquisition [Line Items]
Impact on net income (loss)				61,700,000
Bats Global Markets, Inc. | Acquisition Related Costs
Business Acquisition [Line Items]
Compensation and benefits		3,400,000		36,900,000
Professional fees and outside services		$ 2,100,000		22,700,000
Impairment of capitalized data processing software				14,900,000
Facilities expenses				$ 900,000
Bats Global Markets, Inc. | Operating Segments | Futures
Business Acquisition [Line Items]
Goodwill	0
Finite-lived and indefinite-lived intangible assets acquired	$ 0
Bats Global Markets, Inc. | Consideration Option One
Business Acquisition [Line Items]
Equity interests issuable per share owned by acquiree (in shares)	0.3201
Cash consideration (in USD per share)	$ 10.00
Bats Global Markets, Inc. | Consideration Option Two
Business Acquisition [Line Items]
Equity interests issuable per share owned by acquiree (in shares)	0.2577
Cash consideration (in USD per share)	$ 14.99
Bats Global Markets, Inc. | Consideration Option Three
Business Acquisition [Line Items]
Equity interests issuable per share owned by acquiree (in shares)	0.4452

XML

ACQUISITIONS - Acquisition Date Fair Value of Consideration Transferred (Details) - USD ($) $ in Millions		9 Months Ended
	Feb. 28, 2017	Sep. 30, 2017	Sep. 30, 2016
Business Acquisition [Line Items]
Cash		$ 1,405.4	$ 14.3
Bats Global Markets, Inc.
Business Acquisition [Line Items]
Cash	$ 955.5
Common stock issued	2,387.3
Equity awards issued	37.4
Total consideration paid, excluding debt extinguished	3,380.2
Debt extinguished	580.0
Total consideration paid	$ 3,960.2

XML

ACQUISITIONS - Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Sep. 30, 2017	Feb. 28, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Goodwill	$ 2,696.3		$ 26.5
Bats Global Markets, Inc.
Business Acquisition [Line Items]
Cash and cash equivalents		$ 130.1
Accounts receivable		117.8
Financial investments		66.0
Property and equipment		21.8
Other assets		32.8
Goodwill		2,651.0
Intangibles		2,000.0
Accounts payable		(33.7)
Accrued expenses		(26.2)
Section 31 fees payable		(143.6)
Income tax payable		(52.9)
Deferred tax liability		(720.3)
Other liabilities		(82.6)
Fair value of assets acquired and liabilities assumed		$ 3,960.2

XML

ACQUISITIONS - Intangible Assets Acquired (Details) - USD ($) $ in Millions		9 Months Ended
	Feb. 28, 2017	Sep. 30, 2017
Business Acquisition [Line Items]
Goodwill		$ 2,651.0
Finite-lived and indefinite-lived intangible assets acquired		$ 2,000.0
Options | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Goodwill	$ 226.4
Finite-lived and indefinite-lived intangible assets acquired	436.1
U.S. Equities | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Goodwill	1,738.1
Finite-lived and indefinite-lived intangible assets acquired	2,884.2
European Equities | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Goodwill	419.3
Finite-lived and indefinite-lived intangible assets acquired	835.4
Global FX | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Goodwill	267.2
Finite-lived and indefinite-lived intangible assets acquired	$ 495.3
Customer relationships | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Useful life	20 years
Customer relationships | Options | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 37.1
Customer relationships | U.S. Equities | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	222.9
Customer relationships | European Equities | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	160.0
Customer relationships | Global FX | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 140.0
Market data customer relationships | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Useful life	15 years
Market data customer relationships | Options | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 53.6
Market data customer relationships | U.S. Equities | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	322.0
Market data customer relationships | European Equities | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	60.0
Market data customer relationships | Global FX | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 64.4
Technology | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Useful life	7 years
Technology | Options | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 22.5
Technology | U.S. Equities | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	22.5
Technology | European Equities | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	22.5
Technology | Global FX | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 22.5
Trademarks and tradenames | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Useful life	2 years
Trademarks and tradenames | Options | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 1.0
Trademarks and tradenames | U.S. Equities | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	6.0
Trademarks and tradenames | European Equities | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	1.8
Trademarks and tradenames | Global FX | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	1.2
Trading registrations and licenses | Options | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Indefinite-lived intangible assets acquired	95.5
Trading registrations and licenses | U.S. Equities | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Indefinite-lived intangible assets acquired	572.7
Trading registrations and licenses | European Equities | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Indefinite-lived intangible assets acquired	171.8
Trading registrations and licenses | Global FX | Bats Global Markets, Inc.
Business Acquisition [Line Items]
Indefinite-lived intangible assets acquired	$ 0.0

XML

ACQUISITIONS - Revenue and Income Since Acquisition Date (Details) - Bats Global Markets, Inc. - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017
Business Acquisition [Line Items]
Revenue	$ 411.6	$ 1,017.4
Operating income	27.1	53.7
Net income	$ 15.7	$ 33.7

XML

ACQUISITIONS - Pro Forma Financial Information (Details) - Bats Global Markets, Inc. - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Business Acquisition [Line Items]
Revenue	$ 610.3	$ 1,881,300,000	$ 1,930,900,000
Operating income	98.2	354,200,000	306,100,000
Net income allocated to common stockholders	$ 52.6	$ 201,300,000	$ 170,100,000
Earnings per share:
Basic (in USD per share)	$ 0.47	$ 1.79	$ 1.51
Diluted (in USD per share)	$ 0.47	$ 1.79	$ 1.51

XML

SEVERANCE (Details) - Severance $ in Millions	9 Months Ended
	Sep. 30, 2017 USD ($)
Restructuring Reserve [Roll Forward]
December 31, 2016	$ 0.4
Termination benefits accrued	20.7
Termination payments made	(19.7)
September 30, 2017	$ 1.4

XML

INVESTMENTS - Schedule of Investments (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Schedule of Cost and Equity Method Investments [Line Items]
Equity Method	$ 22.6	$ 12.4
Cost Method	60.6	60.5
Total Investments	83.2	72.9
Investment in Signal Trading Systems, LLC
Schedule of Cost and Equity Method Investments [Line Items]
Equity Method	13.4	12.4
Investment in EuroCCP
Schedule of Cost and Equity Method Investments [Line Items]
Equity Method	9.2	0.0
Investment in OCC
Schedule of Cost and Equity Method Investments [Line Items]
Cost Method	30.3	30.3
Other cost method investments
Schedule of Cost and Equity Method Investments [Line Items]
Cost Method	$ 30.3	$ 30.2

XML

INVESTMENTS - Equity Method Investments, Narrative (Details)	Sep. 30, 2017 central_counterparty investor
Bats Global Markets, Inc.
Schedule of Equity Method Investments [Line Items]
Number of central counterparties | central_counterparty	3
Investment in EuroCCP | BATS Trading Limited
Schedule of Equity Method Investments [Line Items]
Ownership percentage	20.00%
Number of other investors | investor	4

XML

INVESTMENTS - Cost Method Investments, Narrative (Details) - USD ($)	Mar. 03, 2015	Feb. 26, 2015	Sep. 30, 2017	Dec. 31, 2016
Schedule of Cost-method Investments [Line Items]
Cost method investments			$ 60,600,000	$ 60,500,000
Investment in OCC
Schedule of Cost-method Investments [Line Items]
Cost method investments			$ 30,300,000	$ 30,300,000
Ownership percentage			20.00%
Contribution requirement		$ 150,000,000
Contribution requirement, shareholder cap		$ 40,000,000
Customer refunds, percent of pre-tax income exceeding capital requirements		50.00%
Contributions	$ 30,000,000

XML

FINANCIAL INVESTMENTS - Schedule of Financial Investments (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
Trading securities:
Fair value	$ 2.4
Money market funds
Cost basis	124.8	$ 97.3	$ 72.8	$ 102.3
Money market funds	124.8	97.3
Financial Investments
Cost basis	3.9	67.5
Unrealized gains	0.0	0.0
Unrealized losses	0.0	0.0
Fair Value	3.9	67.5
Money market funds
Money market funds
Cost basis		67.5
Money market funds		$ 67.5
U.S. Treasury securities
Trading securities:
Cost basis	0.5
Fair value	0.5
Other securities
Trading securities:
Cost basis	1.9
Fair value	1.9
Money market funds
Money market funds
Cost basis	1.5
Money market funds	$ 1.5

XML

PROPERTY AND EQUIPMENT, NET - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 257.1		$ 257.1		$ 216.0
Less accumulated depreciation	(179.9)		(179.9)		(160.1)
Total property and equipment, net	77.2		77.2		55.9
Depreciation expense	7.9	$ 6.0	23.2	$ 17.9
Construction in progress
Property, Plant and Equipment [Line Items]
Total property and equipment	11.5		11.5		0.2
Building
Property, Plant and Equipment [Line Items]
Total property and equipment	77.4		77.4		77.0
Furniture and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 168.2		$ 168.2		$ 138.8

XML

OTHER ASSETS, NET - Schedule of Other Assets, Net (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Less accumulated depreciation	$ (184.9)	$ (172.0)
Data processing software, net	38.0	62.9
Other assets	14.0	9.8
Data processing software and other assets, net	52.0	72.7
Deferred financing costs	7.1	6.2
Deferred tax assets		3.5
Software development work in progress
Finite-Lived Intangible Assets [Line Items]
Data processing software, gross	5.9	12.3
Data processing software
Finite-Lived Intangible Assets [Line Items]
Data processing software, gross	$ 217.0	$ 222.6

XML

OTHER ASSETS, NET - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Data processing software
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 4.9	$ 3.7	$ 13.2	$ 15.1

XML

GOODWILL AND INTANGIBLE ASSETS, NET - Goodwill by Segment (Details) $ in Millions	9 Months Ended
	Sep. 30, 2017 USD ($)
Goodwill [Roll Forward]
December 31, 2016	$ 26.5
Additions	2,651.0
Dispositions	(1.4)
Changes in foreign currency exchange rates	20.2
September 30, 2017	2,696.3
Operating Segments | Options
Goodwill [Roll Forward]
December 31, 2016	7.7
Additions	226.4
Dispositions	(1.4)
Changes in foreign currency exchange rates	0.0
September 30, 2017	232.7
Operating Segments | U.S. Equities
Goodwill [Roll Forward]
December 31, 2016	0.0
Additions	1,738.1
Dispositions	0.0
Changes in foreign currency exchange rates	0.0
September 30, 2017	1,738.1
Operating Segments | European Equities
Goodwill [Roll Forward]
December 31, 2016	0.0
Additions	419.3
Dispositions	0.0
Changes in foreign currency exchange rates	20.2
September 30, 2017	439.5
Operating Segments | Global FX
Goodwill [Roll Forward]
December 31, 2016	0.0
Additions	267.2
Dispositions	0.0
Changes in foreign currency exchange rates	0.0
September 30, 2017	267.2
Corporate Items and Eliminations
Goodwill [Roll Forward]
December 31, 2016	18.8
Additions	0.0
Dispositions	0.0
Changes in foreign currency exchange rates	0.0
September 30, 2017	$ 18.8

XML

GOODWILL AND INTANGIBLE ASSETS, NET - Schedule of Intangible Assets by Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Finite-lived Intangible Assets [Roll Forward]
December 31, 2016			$ 8.7
Additions			2,000.0
Dispositions			(0.2)
Amortization	$ (42.8)	$ (0.4)	(99.9)	$ (1.3)
Changes in foreign currency exchange rates			31.6
September 30, 2017	1,940.2		1,940.2
Operating Segments | Options
Finite-lived Intangible Assets [Roll Forward]
December 31, 2016			2.0
Additions			209.7
Dispositions			(0.2)
Amortization			(10.5)
Changes in foreign currency exchange rates			0.0
September 30, 2017	201.0		201.0
Operating Segments | U.S. Equities
Finite-lived Intangible Assets [Roll Forward]
December 31, 2016			0.0
Additions			1,146.1
Dispositions			0.0
Amortization			(52.0)
Changes in foreign currency exchange rates			0.0
September 30, 2017	1,094.1		1,094.1
Operating Segments | European Equities
Finite-lived Intangible Assets [Roll Forward]
December 31, 2016			0.0
Additions			416.1
Dispositions			0.0
Amortization			(16.5)
Changes in foreign currency exchange rates			31.6
September 30, 2017	431.2		431.2
Operating Segments | Global FX
Finite-lived Intangible Assets [Roll Forward]
December 31, 2016			0.0
Additions			228.1
Dispositions			0.0
Amortization			(20.0)
Changes in foreign currency exchange rates			0.0
September 30, 2017	208.1		208.1
Corporate Items and Eliminations
Finite-lived Intangible Assets [Roll Forward]
December 31, 2016			6.7
Additions			0.0
Dispositions			0.0
Amortization			(0.9)
Changes in foreign currency exchange rates			0.0
September 30, 2017	$ 5.8		$ 5.8

XML

GOODWILL AND INTANGIBLE ASSETS, NET - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization	$ 42.8	$ 0.4	$ 99.9	$ 1.3
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Future amortization expense, remainder of 2017	42.4		42.4
Future amortization expense, 2018	158.1		158.1
Future amortization expense, 2019	137.2		137.2
Future amortization expense, 2020	120.8		120.8
Future amortization expense, 2021	105.6		105.6
Future amortization expense, 2022	$ 93.4		$ 93.4

XML

GOODWILL AND INTANGIBLE ASSETS, NET - Schedule of Intangible Assets by Category (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net	$ 1,940.2	$ 8.7
Customer relationships | Weighted Average
Finite-Lived Intangible Assets [Line Items]
Weighted average amortization period (in years)	19 years	9 years
Market data customer relationships | Weighted Average
Finite-Lived Intangible Assets [Line Items]
Weighted average amortization period (in years)	14 years	0 years
Technology | Weighted Average
Finite-Lived Intangible Assets [Line Items]
Weighted average amortization period (in years)	6 years	4 years
Trademarks and tradenames | Weighted Average
Finite-Lived Intangible Assets [Line Items]
Weighted average amortization period (in years)	2 years	6 years
Other | Weighted Average
Finite-Lived Intangible Assets [Line Items]
Weighted average amortization period (in years)	2 years	2 years
Operating Segments | Options
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ (11.0)	$ (0.6)
Intangible assets, net	201.0	2.0
Operating Segments | Options | Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	37.9	0.9
Operating Segments | Options | Market data customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	53.6	0.0
Operating Segments | Options | Technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	23.4	1.1
Operating Segments | Options | Trademarks and tradenames
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	1.4	0.4
Operating Segments | Options | Other
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	0.2	0.2
Operating Segments | Options | Trading registrations and licenses
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross	95.5	0.0
Operating Segments | U.S. Equities
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	(52.0)	0.0
Intangible assets, net	1,094.1	0.0
Operating Segments | U.S. Equities | Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	222.9	0.0
Operating Segments | U.S. Equities | Market data customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	322.0	0.0
Operating Segments | U.S. Equities | Technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	22.5	0.0
Operating Segments | U.S. Equities | Trademarks and tradenames
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	6.0	0.0
Operating Segments | U.S. Equities | Other
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	0.0	0.0
Operating Segments | U.S. Equities | Trading registrations and licenses
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross	572.7	0.0
Operating Segments | European Equities
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	(17.0)	0.0
Intangible assets, net	431.2	0.0
Operating Segments | European Equities | Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	172.4	0.0
Operating Segments | European Equities | Market data customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	64.6	0.0
Operating Segments | European Equities | Technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	24.2	0.0
Operating Segments | European Equities | Trademarks and tradenames
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	1.9	0.0
Operating Segments | European Equities | Other
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	0.0	0.0
Operating Segments | European Equities | Trading registrations and licenses
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross	185.1	0.0
Operating Segments | Global FX
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	(20.0)	0.0
Intangible assets, net	208.1	0.0
Operating Segments | Global FX | Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	140.0	0.0
Operating Segments | Global FX | Market data customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	64.4	0.0
Operating Segments | Global FX | Technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	22.5	0.0
Operating Segments | Global FX | Trademarks and tradenames
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	1.2	0.0
Operating Segments | Global FX | Other
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	0.0	0.0
Operating Segments | Global FX | Trading registrations and licenses
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross	0.0	0.0
Corporate Items and Eliminations
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	(2.2)	(1.3)
Intangible assets, net	5.8	6.7
Corporate Items and Eliminations | Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	3.0	3.0
Corporate Items and Eliminations | Market data customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	0.0	0.0
Corporate Items and Eliminations | Technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	4.0	4.0
Corporate Items and Eliminations | Trademarks and tradenames
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	1.0	1.0
Corporate Items and Eliminations | Other
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	0.0	0.0
Corporate Items and Eliminations | Trading registrations and licenses
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross	$ 0.0	$ 0.0

XML

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES - Schedule of Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Payables and Accruals [Abstract]
Compensation and benefit-related liabilities	$ 13.9	$ 25.1
Termination benefits	1.4	0.4
Royalties	19.7	17.8
Accrued liabilities	58.4	25.4
Marketing fee payable	8.1	7.2
Accounts payable	38.9	6.5
Total accounts payable and accrued liabilities	$ 140.4	$ 82.4

XML

DEBT - Schedule of Long-term Debt (Details) - USD ($) $ in Millions	Sep. 30, 2017	Jun. 29, 2017	Jan. 12, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Total long-term debt	$ 1,312.4			$ 0.0
Term Loan Agreement | Term Loan Agreement
Debt Instrument [Line Items]
Total long-term debt	369.6			0.0
Senior Notes | 3.650% Senior Notes
Debt Instrument [Line Items]
Total long-term debt	$ 643.8			0.0
Interest rate	3.65%		3.65%
Senior Notes | 1.950% Senior Notes
Debt Instrument [Line Items]
Total long-term debt	$ 299.0			0.0
Interest rate		1.95%
Line of Credit | Revolving Credit Agreement
Debt Instrument [Line Items]
Total long-term debt	$ 0.0			$ 0.0

XML

DEBT - Narrative (Details)				9 Months Ended		12 Months Ended
	Feb. 28, 2017 USD ($)	Dec. 15, 2016 USD ($)	Sep. 25, 2016 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($)	Jun. 29, 2017 USD ($)	Jan. 12, 2017 USD ($)	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Proceeds from long-term debt				$ 1,944,200,000	$ 0
Deferred financing costs				7,100,000		$ 7,100,000			$ 6,200,000
Amortization of debt issuance cost				3,100,000	$ 0
Borrowings outstanding				$ 1,312,400,000		1,312,400,000
Bats Global Markets, Inc.
Debt Instrument [Line Items]
Amount secured to finance the cash portion of pending acquisition		$ 1,650,000,000
Bridge Facility | Bridge Facility | Line of Credit
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity			$ 1,650,000,000.00
Term of facility			364 days
Payments of commitment and structuring fees						6,000,000
Amortization of commitment and structuring fees						$ 6,000,000
Term Loan Agreement | Term Loan Agreement
Debt Instrument [Line Items]
Loan agreement, maximum borrowing capacity		1,000,000,000.0
Minimum consolidated interest ratio				4.00
Maximum consolidated leverage ratio				3.50		3.50
Proceeds from long-term debt	$ 1,000,000,000
Term of facility	5 years
Term Loan Agreement | Term Loan Agreement | Minimum
Debt Instrument [Line Items]
Ticking fee				0.10%
Term Loan Agreement | Term Loan Agreement | Maximum
Debt Instrument [Line Items]
Ticking fee				0.30%
Term Loan Agreement | Term Loan Agreement | LIBOR | Minimum
Debt Instrument [Line Items]
Variable interest rate				1.00%
Term Loan Agreement | Term Loan Agreement | LIBOR | Maximum
Debt Instrument [Line Items]
Variable interest rate				1.75%
Term Loan Agreement | Term Loan Agreement | Prime Rate | Minimum
Debt Instrument [Line Items]
Variable interest rate				0.00%
Term Loan Agreement | Term Loan Agreement | Prime Rate | Maximum
Debt Instrument [Line Items]
Variable interest rate				0.75%
Senior Notes | 3.650% Senior Notes
Debt Instrument [Line Items]
Aggregate principal issued							$ 300,000,000	$ 650,000,000
Interest rate				3.65%		3.65%		3.65%
Redemption price				101.00%
Senior Notes | 1.950% Senior Notes
Debt Instrument [Line Items]
Aggregate principal issued							$ 300,000,000
Interest rate							1.95%
Deferred financing costs							$ 800,000
Amortization of debt issuance cost				$ 900,000
Redemption price				101.00%
Line of Credit | Revolving Credit Agreement | Revolving Credit Agreement
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		$ 150,000,000
Minimum consolidated interest ratio				4.00
Maximum consolidated leverage ratio				3.50		3.50
Term of facility		5 years
Maximum borrowing capacity, increase limit		$ 100,000,000
Maximum borrowing capacity, total with increase		250,000,000
Borrowings outstanding				$ 0		$ 0
Borrowing capacity available				$ 150,000,000		$ 150,000,000
Line of Credit | Revolving Credit Agreement | Revolving Credit Agreement | LIBOR | Minimum
Debt Instrument [Line Items]
Variable interest rate				1.00%
Line of Credit | Revolving Credit Agreement | Revolving Credit Agreement | LIBOR | Maximum
Debt Instrument [Line Items]
Variable interest rate				1.75%
Line of Credit | Revolving Credit Agreement | Revolving Credit Agreement | Prime Rate | Minimum
Debt Instrument [Line Items]
Variable interest rate				0.00%
Line of Credit | Revolving Credit Agreement | Revolving Credit Agreement | Prime Rate | Maximum
Debt Instrument [Line Items]
Variable interest rate				0.75%
Line of Credit | Revolving Credit Agreement | Bridge Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		$ 25,000,000

XML

DEBT - Schedule of Debt Repayments (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Long-term Debt
2017	$ 0.0
2018	0.0
2019	300.0
2020	0.0
2021	0.0
Thereafter	1,025.0
Principal amounts repayable	1,325.0
Debt issuance cost	(7.1)	$ (6.2)
Unamortized discount on Notes	(5.5)
Total debt outstanding	$ 1,312.4

XML

DEBT - Schedule of Interest Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Debt Disclosure [Abstract]
Contractual interest	$ 10.5	$ 0.2	$ 29.0	$ 0.2
Amortization of debt discount	0.3	0.0	0.6	0.0
Amortization of debt issuance cost	0.2	0.0	2.5	0.0
Interest expense	11.0	0.2	32.1	0.2
Interest income	(0.5)	0.0	(1.2)	0.0
Interest expense, net	$ 10.5	$ 0.2	$ 30.9	$ 0.2

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ACCUMULATED OTHER COMPREHENSIVE INCOME, NET - Schedule of Accumulated Other Comprehensive Loss, Net (Details) $ in Millions	9 Months Ended
	Sep. 30, 2017 USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
December 31, 2016	$ 317.9
Other comprehensive income	50.8
September 30, 2017	2,877.9
Total Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
December 31, 2016	(0.8)
Other comprehensive income	50.8
September 30, 2017	50.0
Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
December 31, 2016	0.0
Other comprehensive income	50.7
September 30, 2017	50.7
Unrealized Investment Gain/Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
December 31, 2016	0.0
Other comprehensive income	0.1
September 30, 2017	0.1
Post-Retirement Benefits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
December 31, 2016	(0.8)
Other comprehensive income	0.0
September 30, 2017	$ (0.8)

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FAIR VALUE MEASUREMENTS - Schedule of Fair Value Hierarchy for Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Assets:
Trading investments	$ 2.4
Money market funds	124.8	$ 97.3
Total assets	358.2	227.7
Liabilities:
Contingent consideration liability	56.6
Total liabilities	1,433.3	6.5
Money market funds
Assets:
Money market funds		67.5
U.S. Treasury securities
Assets:
Trading investments	0.5
Other securities
Assets:
Trading investments	1.9
Level 1
Assets:
Trading investments	2.4
Money market funds	124.8	97.3
Total assets	358.2	227.7
Liabilities:
Contingent consideration liability	0.0
Total liabilities	0.0	0.0
Level 2
Assets:
Trading investments	0.0
Money market funds	0.0	0.0
Total assets	0.0	0.0
Liabilities:
Contingent consideration liability	0.0
Total liabilities	1,376.7	6.5
Level 3
Assets:
Trading investments	0.0
Money market funds	0.0	0.0
Total assets	0.0	0.0
Liabilities:
Contingent consideration liability	56.6
Total liabilities	56.6	0.0
Recurring
Assets:
Total assets	3.9	67.5
Liabilities:
Contingent consideration liability	56.6
Total liabilities	56.6
Recurring | Money market funds
Assets:
Money market funds	1.5	67.5
Recurring | U.S. Treasury securities
Assets:
Trading investments	0.5
Recurring | Other securities
Assets:
Trading investments	1.9
Recurring | Level 1
Assets:
Total assets	3.9	67.5
Liabilities:
Contingent consideration liability	0.0
Total liabilities	0.0
Recurring | Level 1 | Money market funds
Assets:
Money market funds	1.5	67.5
Recurring | Level 1 | U.S. Treasury securities
Assets:
Trading investments	0.5
Recurring | Level 1 | Other securities
Assets:
Trading investments	1.9
Recurring | Level 2
Assets:
Total assets	0.0	0.0
Liabilities:
Contingent consideration liability	0.0
Total liabilities	0.0
Recurring | Level 2 | Money market funds
Assets:
Money market funds	0.0	0.0
Recurring | Level 2 | U.S. Treasury securities
Assets:
Trading investments	0.0
Recurring | Level 2 | Other securities
Assets:
Trading investments	0.0
Recurring | Level 3
Assets:
Total assets	0.0	0.0
Liabilities:
Contingent consideration liability	56.6
Total liabilities	56.6
Recurring | Level 3 | Money market funds
Assets:
Money market funds	0.0	$ 0.0
Recurring | Level 3 | U.S. Treasury securities
Assets:
Trading investments	0.0
Recurring | Level 3 | Other securities
Assets:
Trading investments	$ 0.0

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FAIR VALUE MEASUREMENTS - Narrative (Details) $ in Millions	Sep. 30, 2017 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration agreement	$ 56.6
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration agreement	56.6
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration agreement	56.6
Level 3 | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration agreement	$ 56.6

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FAIR VALUE MEASUREMENTS - Schedule of Fair Value Hierarchy of Financial Instruments Held (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Assets:
Cash and cash equivalents	$ 124.8	$ 97.3
Trading investments	2.4
Available-for-sale investments	0.0
Accounts receivable	195.8	76.7
Income tax receivable	35.2	53.7
Total assets	358.2	227.7
Liabilities:
Accounts payable	38.9	6.5
Section 31 fees payable	25.4
Contingent consideration liability	56.6
Long-term debt	1,312.4
Total liabilities	1,433.3	6.5
Level 1
Assets:
Cash and cash equivalents	124.8	97.3
Trading investments	2.4
Available-for-sale investments	0.0
Accounts receivable	195.8	76.7
Income tax receivable	35.2	53.7
Total assets	358.2	227.7
Liabilities:
Accounts payable	0.0	0.0
Section 31 fees payable	0.0
Contingent consideration liability	0.0
Long-term debt	0.0
Total liabilities	0.0	0.0
Level 2
Assets:
Cash and cash equivalents	0.0	0.0
Trading investments	0.0
Available-for-sale investments	0.0
Accounts receivable	0.0	0.0
Income tax receivable	0.0	0.0
Total assets	0.0	0.0
Liabilities:
Accounts payable	38.9	6.5
Section 31 fees payable	25.4
Contingent consideration liability	0.0
Long-term debt	1,312.4
Total liabilities	1,376.7	6.5
Level 3
Assets:
Cash and cash equivalents	0.0	0.0
Trading investments	0.0
Available-for-sale investments	0.0
Accounts receivable	0.0	0.0
Income tax receivable	0.0	0.0
Total assets	0.0	0.0
Liabilities:
Accounts payable	0.0	0.0
Section 31 fees payable	0.0
Contingent consideration liability	56.6
Long-term debt	0.0
Total liabilities	$ 56.6	$ 0.0

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FAIR VALUE MEASUREMENTS - Summary of Changes in the Fair Value of the Company's Level 3 Financial Liabilities (Details) $ in Millions	9 Months Ended
	Sep. 30, 2017 USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at the beginning of the period	$ 0.0
Acquired During Period	56.6
Settlements	0.0
Balance at the end of the period	56.6
Contingent consideration liability
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at the beginning of the period	0.0
Acquired During Period	56.6
Settlements	0.0
Balance at the end of the period	$ 56.6

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REDEEMABLE NONCONTROLLING INTEREST - Schedule of Redeemable Noncontrolling Interest (Details) $ in Millions	9 Months Ended
	Sep. 30, 2017 USD ($)
Increase (Decrease) in Temporary Equity [Roll Forward]
December 31, 2016	$ 12.6
Decrease due to acquiring additional equity in Vest	(3.2)
Net loss attributable to redeemable noncontrolling interest	(0.8)
Redemption value adjustment	0.8
September 30, 2017	$ 9.4

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SEGMENT REPORTING - Summarized Financial Information by Reportable Segment (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) segment	Sep. 30, 2016 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment			5
Segment Reporting Information [Line Items]
Revenues	$ 611.4	$ 168.7	$ 1,608.4	$ 512.3
Operating income (loss)	119.3	65.8	263.2	223.3
Operating Segments | Options
Segment Reporting Information [Line Items]
Revenues	224.8	139.2	651.0	426.8
Operating income (loss)	64.3	42.6	190.5	158.5
Operating Segments | U.S. Equities
Segment Reporting Information [Line Items]
Revenues	308.5	0.0	759.8	0.0
Operating income (loss)	29.9	0.0	75.4	0.0
Operating Segments | Futures
Segment Reporting Information [Line Items]
Revenues	40.3	29.5	107.7	85.5
Operating income (loss)	35.4	25.5	94.7	72.2
Operating Segments | European Equities
Segment Reporting Information [Line Items]
Revenues	26.3	0.0	63.2	0.0
Operating income (loss)	2.7	0.0	7.8	0.0
Operating Segments | Global FX
Segment Reporting Information [Line Items]
Revenues	11.3	0.0	26.2	0.0
Operating income (loss)	(3.5)	0.0	(8.8)	0.0
Corporate Items and Eliminations
Segment Reporting Information [Line Items]
Revenues	0.2	0.0	0.5	0.0
Operating income (loss)	$ (9.5)	$ (2.3)	$ (96.4)	$ (7.4)

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EMPLOYEE BENEFITS - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Chicago Board Options Exchange SMART Plan, Supplemental Employee Retirement Plan, Executive Retirement Plan and Deferred Compensation Plan
Defined Contribution Plan Disclosure [Line Items]
Company contribution amount	$ 1.3	$ 1.5	$ 5.1	$ 4.2
Chicago Board Options Exchange SMART Plan, Supplemental Employee Retirement Plan, Executive Retirement Plan and Deferred Compensation Plan | Acquisition Related Costs
Defined Contribution Plan Disclosure [Line Items]
Company contribution amount			1.2
Legacy BATS Employee 401k Plan
Defined Contribution Plan Disclosure [Line Items]
Company contribution amount	0.6		$ 1.1
Company match of employee contributions			5.00%
BATs Stakeholder Contribution Plan
Defined Contribution Plan Disclosure [Line Items]
Company contribution amount	$ 0.1		$ 0.3
Company match of employee contributions			5.00%

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REGULATORY CAPITAL - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 30, 2017 USD ($)
Brokers and Dealers [Abstract]
Net capital	$ 11.9
Excess net capital	11.5
Required net capital	0.4
Financial resources requirement	20.1
Capital in excess of financial resources requirement	23.9
Capital resources requirement	0.1
Capital in excess of capital resources requirement	0.4
Annual operating expenses for swap execution facility capital adequacy tests	1.4
Nine month operating expenses for swap execution facility capital adequacy tests	0.7
Annual operating expenses for registered futures exchange capital adequacy tests	19.2
Nine month operating expenses for registered futures exchange capital adequacy tests	$ 9.6

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STOCK-BASED COMPENSATION - Narrative (Details) $ / shares in Units, $ in Millions							3 Months Ended		9 Months Ended
	Aug. 15, 2017 $ / shares shares	May 18, 2017 $ / shares shares	May 15, 2017 $ / shares shares	Feb. 28, 2017 $ / shares shares	Feb. 28, 2017 $ / shares shares	Feb. 19, 2017 $ / shares shares	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) $ / shares shares	Sep. 30, 2016 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised (in shares)									231,003
Payments for the purchase of shares to satisfy the employee income tax withholdings (in shares) | $									$ 18.0	$ 4.1
Bats Global Markets, Inc.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share price, measurement period					10 days
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments granted (in shares)	1,612	15,405	2,655			251,273
Number of shares of common stock of which unit is convertible (in shares)				1	1	1
Fair value of equity instruments granted (in USD per share) | $ / shares	$ 97.54	$ 84.41	$ 85.00		$ 78.05	$ 80.40
Vesting period		1 year	3 years		3 years	3 years
Restricted Stock Units | Bats Global Markets, Inc.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments granted (in shares)					622,527
Shares used for conversion ratio (in shares)				0.3201	0.3201
Share price used for conversion ratio (in USD per share) | $ / shares				$ 10.00	$ 10.00
Restricted Stock Units | First anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			33.33%		33.33%	33.33%
Restricted Stock Units | Second anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			33.33%		33.33%	33.33%
Restricted Stock Units | Third anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			33.33%		33.33%	33.33%
Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments granted (in shares)					19,255	41,481
Fair value of equity instruments granted (in USD per share) | $ / shares					$ 102.00	$ 111.00
Vesting period				3 years
Risk-free rate				(0.90%)
Expected volatility				(21.10%)
Correlation with S&P index				(0.41)
Performance Based Restricted Stock Units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units ultimately expected to be awarded				0.00%
Performance Based Restricted Stock Units | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units ultimately expected to be awarded				200.00%
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense | $							$ 9.1	$ 3.8	39.1	$ 10.9
Accelerated stock-based compensation expense | $									$ 9.1
Shares purchased to satisfy the employee income tax withholdings (in shares)									144,807
Payments for the purchase of shares to satisfy the employee income tax withholdings (in shares) | $									$ 12.0
Vested (in shares)									386,717
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free rate									(1.78%)
Expected volatility									(19.80%)
Shares purchased to satisfy the employee income tax withholdings (in shares)									65,302
Payments for the purchase of shares to satisfy the employee income tax withholdings (in shares) | $									$ 6.0
Unrecognized compensation expense | $							2.3		$ 2.3
Unrecognized compensation expense, period for recognition									1 year 2 months 24 days
Stock options | Bats Global Markets, Inc.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Acquisition, exchange ratio									0.4452
Acquisition, exchange ratio basis									0.3201
Acquisition, exchange ratio price									10.00
Acquisition, number of consecutive trading days for volume-weighted average price									10 days
Restricted Stock and Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments granted (in shares)									1,091,843
Fair value of equity instruments granted (in USD per share) | $ / shares									$ 78.94
Unrecognized compensation expense | $							$ 55.6		$ 55.6
Unrecognized compensation expense, period for recognition									2 years
Vested (in shares)									386,717
Awards Granted February 28, Grant One | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments granted (in shares)					68,254
Awards Granted February 28, Grant Two | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments granted (in shares)					49,703

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STOCK-BASED COMPENSATION - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Number of Shares
Beginning balance (in shares)
Granted (in shares)	683,390
Exercised (in shares)	(231,003)
Ending balance (in shares)	452,387
Weighted Average Exercise Price
Beginning balance (in USD per share)
Granted (in USD per share)	22.45
Exercised (in USD per share)	18.50
Ending balance (in USD per share)	$ 25.13
Weighted Average Remaining Contractual Term (years)
Granted	4 years 9 months 24 days
Outstanding	5 years 4 months 12 days	0 years
Aggregate Intrinsic Value (in millions)
Beginning balance
Granted	40.1
Ending balance	$ 37.3
Exercisable
Number of shares (in shares)	371,318
Weighted average exercise price (in USD per share)	$ 24.48
Weighted average remaining contractual term (years)	5 years
Aggregate intrinsic value	$ 31.8

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STOCK-BASED COMPENSATION - Fair Value of Assumptions for Options Granted (Details) - Stock options	9 Months Ended
	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	4 years 2 months 12 days
Expected volatility	19.80%
Expected dividend yield	1.30%
Risk-free rate	1.78%
Forfeiture rate	0.00%

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STOCK-BASED COMPENSATION - Nonvested Options Activity (Details)	9 Months Ended
	Sep. 30, 2017 $ / shares shares
Options
Beginning balance (in shares) | shares	0
Vested (in shares) | shares	0
Granted (in shares) | shares	81,068
Forfeited (in shares) | shares	0
Ending balance (in shares) | shares	81,068
Weighted Average Grant-Date Fair Value
Beginning balance (in USD per share) | $ / shares	$ 0.00
Vested (in USD per share) | $ / shares	0.00
Granted (in USD per share) | $ / shares	49.17
Forfeited (in USD per share) | $ / shares	0.00
Ending balance (in USD per share) | $ / shares	$ 49.17

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STOCK-BASED COMPENSATION - Restricted Stock Activity (Details) - Restricted Stock and Restricted Stock Units	9 Months Ended
	Sep. 30, 2017 $ / shares shares
Number of shares
Beginning balance (in shares) | shares	480,595
Granted (in shares) | shares	1,091,843
Vested (in shares) | shares	(386,717)
Forfeited (in shares) | shares	(5,442)
Ending balance (in shares) | shares	1,180,279
Weighted average grant date fair value
Beginning balance (in USD per share) | $ / shares	$ 63.64
Granted (in USD per share) | $ / shares	78.94
Vested (in USD per share) | $ / shares	64.88
Forfeited (in USD per share) | $ / shares	73.43
Ending balance (in USD per share) | $ / shares	$ 77.26

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INCOME TAXES - Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Tax Disclosure [Abstract]
Effective tax rate	43.10%	39.90%	37.70%	39.30%

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NET INCOME PER COMMON SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Basic and Diluted EPS Numerator:
Net Income	$ 60.3	$ 40.5	$ 143.5	$ 140.6
Net loss attributable to redeemable noncontrolling interest	0.2	0.3	0.8	0.8
Net Income Excluding Noncontrolling Interest	60.5	40.8	144.3	141.4
Change in redemption value of noncontrolling interest	(0.2)	(0.3)	(0.8)	(0.8)
Net income allocated to participating securities	(0.6)	(0.2)	(1.4)	(0.6)
Net Income Allocated to Common Stockholders	$ 59.7	$ 40.3	$ 142.1	$ 140.0
Basic EPS Denominator:
Weighted average shares outstanding (in shares)	112,300	81,300	105,500	81,500
Basic Net Income Per Common Share (in dollars per share)	$ 0.53	$ 0.50	$ 1.35	$ 1.72
Diluted EPS Denominator:
Weighted average shares outstanding (in shares)	112,300	81,300	105,500	81,500
Dilutive common shares issued under stock program (in shares)	300	0	300	0
Total Dilutive Weighted Average Shares (in shares)	112,600	81,300	105,800	81,500
Diluted Net Income Per Common Share (in dollars per share)	$ 0.53	$ 0.50	$ 1.34	$ 1.72

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COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Loss Contingencies [Line Items]
Rent expense	$ 2.2	$ 0.4	$ 5.7	$ 1.0
Minimum
Loss Contingencies [Line Items]
Lease terms			3 months
Maximum
Loss Contingencies [Line Items]
Lease terms			100 months

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SUBSEQUENT EVENTS - Narrative (Details) - $ / shares		9 Months Ended
	Oct. 27, 2017	Sep. 30, 2017
Subsequent Event [Line Items]
Dividends (in USD per share)		$ 0.77
Subsequent Event
Subsequent Event [Line Items]
Dividends (in USD per share)	$ 0.27