10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

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

For the Quarterly Period Ended March 31, 2018

OR

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

For the transition period fromto

ARMOUR RESIDENTIAL REIT, INC.

(Exact name of registrant as specified in its charter)

Maryland	001-34766	26-1908763
(State or other jurisdiction of incorporation or organization)	(Commission File Number)	(I.R.S. Employer Identification No.)

3001 Ocean Drive, Suite 201, Vero Beach, FL  32963

(Address of principal executive offices)(zip code)

(772) 617-4340

(Registrant’s telephone number, including area code)

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

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

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

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

Smaller reporting company o Emerging growth company o

If an emerging growth company, indicate by a check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). YES o NO x

The number of outstanding shares of the Registrant’s common stock as of April 24, 2018 was 41,902,723.

ARMOUR Residential REIT, Inc.

TABLE OF CONTENTS

PART I. Financial Information	3
Item 1. Financial Statements	3
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations	35
Item 3. Quantitative and Qualitative Disclosures about Market Risk	65
Item 4. Controls and Procedures	69
PART II. Other Information	70
Item 1. Legal Proceedings	70
Item IA. Risk Factors	71
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	71
Item 3. Defaults Upon Senior Securities	71
Item 4. Mine Safety Disclosures	71
Item 5. Other Information	71
Item 6. Exhibits	71

3

PART I. FINANCIAL INFORMATION

Item 1. Financial Statements

ARMOUR Residential REIT, Inc.

CONSOLIDATED BALANCE SHEETS (UNAUDITED)

(in thousands, except per share)

	March 31, 2018			December 31, 2017
Assets
Cash	$	216,497		$	265,232
Cash collateral posted to counterparties	13,150			17,162
Investments in securities, at fair value
Agency Securities (including pledged securities of $5,725,997 at March 31, 2018 and $7,094,766 at December 31, 2017)	6,245,432			7,478,966
Credit Risk and Non-Agency Securities (including pledged securities of $884,531 at March 31, 2018 and $974,372 at December 31, 2017)	968,950			975,829
Interest-Only Securities	24,933			25,752
U.S. Treasury Securities - pledged securities	670,696			—
Receivable for unsettled sales (including pledged securities of $63,535 at March 31, 2018)	68,796			—
Derivatives, at fair value	135,703			37,211
Accrued interest receivable	20,492			22,165
Prepaid and other	1,608			1,600
Subordinated loans due from BUCKLER Securities LLC	105,000			105,000
Total Assets	$	8,471,257		$	8,928,917
Liabilities and Stockholders’ Equity
Liabilities:
Repurchase agreements	$	6,853,715		$	7,555,917
Cash collateral posted by counterparties	127,721			29,593
Payable for unsettled purchases	227,409			—
Derivatives, at fair value	6,882			7,948
Accrued interest payable- repurchase agreements	5,274			6,452
Accounts payable and other accrued expenses	5,290			2,956
Total Liabilities	$	7,226,291		$	7,602,866
Commitments and contingencies (Note 11)
Stockholders’ Equity:
Preferred stock, $0.001 par value, 50,000 shares authorized;
8.250% Series A Cumulative Preferred Stock; 2,181 issued and outstanding ($54,514 aggregate liquidation preference)	2			2
7.875% Series B Cumulative Preferred Stock; 6,369 and 6,262 shares issued and outstanding at March 31, 2018 and December 31, 2017 ($159,232 and $156,560 aggregate liquidation preference, respectively)	6			6
Common stock, $0.001 par value, 125,000 shares authorized, 41,902 and 41,877 shares issued and outstanding at March 31, 2018 and December 31, 2017	42			42
Additional paid-in capital	2,712,611			2,709,335
Accumulated deficit	(1,346,867		)	(1,363,223		)
Accumulated other comprehensive loss	(120,828		)	(20,111		)
Total Stockholders’ Equity	$	1,244,966		$	1,326,051
Total Liabilities and Stockholders’ Equity	$	8,471,257		$	8,928,917

See financial statement notes (unaudited).

4

ARMOUR Residential REIT, Inc.

CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)

(in thousands, except per share)

	For the Three Months Ended March 31,
	2018			2017
Interest Income:
Agency Securities, net of amortization of premium and fees	$	52,253		$	44,081
Credit Risk and Non-Agency Securities, including discount accretion	14,006			13,898
Interest-Only Securities	442			603
U.S. Treasury Securities	844			—
BUCKLER Subordinated loans	624			—
Total Interest Income	$	68,169		$	58,582
Interest expense- repurchase agreements	(32,018		)	(18,064		)
Net Interest Income	$	36,151		$	40,518
Other Income (Loss):
Realized loss on sale of Agency Securities (reclassified from Other comprehensive income (loss))	(32,603		)	(11,154		)
Other than temporary impairment of Agency Securities (reclassified from Other comprehensive income)	(12,090		)	—
Gain on Credit Risk and Non-Agency Securities	1,283			24,284
Gain (loss) on Interest-Only Securities	298			(3,743		)
Gain on U.S. Treasury Securities	2,576			—
Subtotal	$	(40,536	)	$	9,387
Realized loss on derivatives (1)	(38,604		)	(12,249		)
Unrealized gain on derivatives	97,201			23,768
Subtotal	$	58,597		$	11,519
Total Other Income	$	18,061		$	20,906
Expenses:
Management fees	6,801			6,521
Professional fees	1,172			880
Insurance	165			277
Compensation	977			477
Other	350			551
Total Expenses	$	9,465		$	8,706
Net Income	$	44,747		$	52,718
Dividends on preferred stock	(4,253		)	(3,905		)
Net Income available to common stockholders	$	40,494		$	48,813
Net Income per share available to common stockholders (Note 14):
Basic	$	0.97		$	1.33
Diluted	$	0.96		$	1.33
Dividends declared per common share	$	0.57		$	0.57
Weighted average common shares outstanding:
Basic	41,887			36,724
Diluted	42,331			36,748

(1) Interest expense related to our interest rate swap contracts is recorded as realized loss on derivatives on the consolidated statements of operations. For additional information, see financial statement Note 10.

See financial statement notes (unaudited).

5

ARMOUR Residential REIT, Inc.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (UNAUDITED)

(in thousands)

	For the Three Months Ended March 31,
	2018			2017
Net Income	$	44,747		$	52,718
Other comprehensive income (loss):
Reclassification adjustment for realized loss on sale of available for sale Agency Securities	32,603			11,154
Reclassification adjustment for other than temporary impairment of available for sale Agency Securities	12,090			—
Net unrealized gain (loss) on available for sale Agency Securities	(145,410		)	6,114
Other comprehensive income (loss)	$	(100,717	)	$	17,268
Comprehensive Income (Loss)	$	(55,970	)	$	69,986

See financial statement notes (unaudited).

6

ARMOUR Residential REIT, Inc.

CONSOLIDATED STATEMENT OF STOCKHOLDERS’ EQUITY (UNAUDITED)

(in thousands)

	Preferred Stock										Common Stock
	8.250% Series A					7.875% Series B
	Shares	Par Amount		Additional Paid-in Capital		Shares	Par Amount		Additional Paid-in Capital		Shares	Par Amount		Additional Paid-in Capital		Total Additional Paid-in Capital		Accumulated Deficit			Accumulated Other Comprehensive Income (Loss)			Total
Balance, January 1, 2017	2,181	$	2	$	53,172	6,262	$	6	$	151,515	41,877	$	42	$	2,504,648	$	2,709,335	$	(1,363,223	)	$	(20,111	)	$	1,326,051
Series A Preferred dividends	—	—		—		—	—		—		—	—		—		—		(1,124		)	—			(1,124		)
Series B Preferred dividends	—	—		—		—	—		—		—	—		—		—		(3,129		)	—			(3,129		)
Common stock dividends	—	—		—		—	—		—		—	—		—		—		(24,138		)	—			(24,138		)
Issuance of Series B Preferred stock, net	—	—		—		107	—		2,632		—	—		—		2,632		—			—			2,632
Stock based compensation, net of withholding requirements	—	—		—		—	—		—		25	—		644		644		—			—			644
Net Income	—	—		—		—	—		—		—	—		—		—		44,747			—			44,747
Other comprehensive loss	—	—		—		—	—		—		—	—		—		—		—			(100,717		)	(100,717		)
Balance, March 31, 2018	2,181	$	2	$	53,172	6,369	$	6	$	154,147	41,902	$	42	$	2,505,292	$	2,712,611	$	(1,346,867	)	$	(120,828	)	$	1,244,966

See financial statement notes (unaudited).

7

ARMOUR Residential REIT, Inc.

CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

(in thousands)

	For the Three Months Ended March 31,
	2018			2017
Cash Flows From Operating Activities:
Net Income	$	44,747		$	52,718
Adjustments to reconcile net income to net cash used in operating activities:
Net amortization of premium on Agency Securities	9,794			12,633
Accretion of net discount on Credit Risk and Non-Agency Securities	(1,006		)	(848		)
Net amortization of Interest-Only Securities	1,117			1,311
Realized loss on sale of Agency Securities	32,603			11,154
Other than temporary impairment of Agency Securities	12,090			—
Gain on Credit Risk and Non-Agency Securities	(1,283		)	(24,284		)
(Gain) Loss on Interest-Only Securities	(298		)	3,743
Gain on of U.S. Treasury Securities	(2,576		)	—
Stock based compensation	644			200
Changes in operating assets and liabilities:
(Increase) decrease in accrued interest receivable	1,971			(29		)
(Increase) decrease in prepaid and other assets	56			(371		)
Change in derivatives, at fair value	(99,558		)	(57,159		)
Decrease in accrued interest payable- repurchase agreements	(1,178		)	(2,868		)
Increase (decrease) in accounts payable and other accrued expenses	2,270			(1,239		)
Net cash used in operating activities	$	(607	)	$	(5,039	)
Cash Flows From Investing Activities:
Purchases of Agency Securities	—			(1,408,177		)
Purchases of Credit Risk and Non-Agency Securities	—			(8,224		)
Purchases of U.S. Treasury Securities	(668,120		)	—
Principal repayments of Agency Securities	167,649			208,031
Principal repayments of Credit Risk and Non-Agency Securities	9,168			16,088
Proceeds from sales of Agency Securities	1,068,996			1,387,366
Increase in cash collateral	102,140			61,556
Net cash provided by investing activities	$	679,833		$	256,640
Cash Flows From Financing Activities:
Issuance of Series B Preferred stock, net of expenses	2,632			—
Proceeds from repurchase agreements	35,593,550			35,245,549
Principal repayments on repurchase agreements	(36,295,752		)	(35,549,608		)
Series A Preferred stock dividends paid	(1,124		)	(1,124		)
Series B Preferred stock dividends paid	(3,129		)	(2,781		)
Common stock dividends paid	(24,138		)	(20,951		)
Net cash used in financing activities	$	(727,961	)	$	(328,915	)
Net decrease in cash	(48,735		)	(77,314		)
Cash - beginning of period	265,232			271,773
Cash - end of period	$	216,497		$	194,459
Supplemental Disclosure:
Cash paid during the period for interest	$	53,651		$	36,117
Non-Cash Investing Activities:
Receivable for unsettled sales	$	68,796		$	649,323
Payable for unsettled purchases	$	227,409		$	467,562
Net unrealized gain (loss) on available for sale Agency Securities	$	(145,410	)	$	6,114

See financial statement notes (unaudited).

8

ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

Note 1 -Organization and Nature of Business Operations

References to “we,” “us,” “our,” or the “Company” are to ARMOUR Residential REIT, Inc. (“ARMOUR”) and its subsidiaries. References to “ACM” are to ARMOUR Capital Management LP, a Delaware limited partnership.

ARMOUR is an externally managed Maryland corporation incorporated in 2008. The Company is managed by ACM, an investment advisor registered with the Securities and Exchange Commission (the “SEC”), (see Note 11 -Commitments and Contingencies and Note 16 -Related Party Transactions for additional discussion). We have elected to be taxed as a real estate investment trust (“REIT”) under the Internal Revenue Code, as amended (the "Code”). Our qualification as a REIT depends on our ability to meet, on a continuing basis, various complex requirements under the Code relating to, among other things, the sources of our gross income, the composition and values of our assets, our distribution levels and the concentration of ownership of our capital stock. We believe that we are organized in conformity with the requirements for qualification as a REIT under the Code and our manner of operations enables us to meet the requirements for taxation as a REIT for federal income tax purposes. As a REIT, we will generally not be subject to federal income tax on the REIT taxable income that we currently distribute to our stockholders. If we fail to qualify as a REIT in any taxable year and do not qualify for certain statutory relief provisions, we will be subject to federal income tax at regular corporate rates. Even if we qualify as a REIT for federal income tax purposes, we may still be subject to some federal, state and local taxes on our income.

We invest in residential mortgage backed securities issued or guaranteed by a United States (“U.S.”) Government-sponsored entity (“GSE”), such as the Federal National Mortgage Association (Fannie Mae), the Federal Home Loan Mortgage Corporation (Freddie Mac), or a government agency such as Government National Mortgage Administration (Ginnie Mae) (collectively, “Agency Securities”). We also invest in Interest-Only Securities, which are the interest portion of Agency Securities, that is separated and sold individually from the principal portion of the same payment. Other securities backed by residential mortgages in which we invest, for which the payment of principal and interest is not guaranteed by a GSE or government agency (collectively, “Credit Risk and Non-Agency Securities” and together with Agency Securities and Interest-Only Securities, “MBS”), may benefit from credit enhancement derived from structural elements such as subordination, over collateralization or insurance.

Our securities portfolio consists primarily of Agency Securities backed by fixed rate home loans. From time to time, a portion of our assets may be invested in Agency Securities backed by hybrid adjustable rate and adjustable rate home loans as well as unsecured notes and bonds issued by GSEs, U.S. Treasury Securities and money market instruments, subject to certain income tests we must satisfy for our qualification as a REIT.

Note 2 -Basis of Presentation and Consolidation

The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X promulgated by the SEC. Accordingly, the condensed financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2018 are not necessarily indicative of the results that may be expected for the calendar year ending December 31, 2018. These unaudited consolidated financial statements should be read in conjunction with the audited financial statements and notes thereto included in our annual report on Form 10-K for the year ended December 31, 2017.

The unaudited consolidated financial statements include the accounts of ARMOUR Residential REIT, Inc. and its subsidiaries. All intercompany accounts and transactions have been eliminated. The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant estimates affecting the accompanying condensed consolidated financial statements include the valuation of MBS

9

ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

(as defined below), including an assessment of whether other-than-temporary impairment (“OTTI”) exists, and derivative instruments.

Note 3 -Summary of Significant Accounting Policies

Cash

Cash includes cash on deposit with financial institutions. We may maintain deposits in federally insured financial institutions in excess of federally insured limits. However, management believes we are not exposed to significant credit risk due to the financial position and creditworthiness of the depository institutions in which those deposits are held.

Cash Collateral Posted To/By Counterparties

Cash collateral posted to/by counterparties represents cash posted by us to counterparties or posted by counterparties to us as collateral. Cash collateral posted to/by counterparties may include collateral for interest rate swap contracts (including swaptions and basis swap contracts),and repurchase agreements on our MBS and our Agency Securities purchased or sold on a to-be-announced basis (“TBA Agency Securities”).

Investments in Securities, at Fair Value

We generally intend to hold most of our securities for extended periods of time. We may, from time to time, sell any of our securities as part of the overall management of our securities portfolio. Management determines the appropriate classifications of the securities at the time they are acquired and evaluates the appropriateness of such classifications at each balance sheet date. Purchases and sales of our securities are recorded on the trade date.

Agency Securities - At March 31, 2018 and December 31, 2017, all of our Agency Securities were classified as available for sale securities. Agency Securities classified as available for sale are reported at their estimated fair values with unrealized gains and losses excluded from earnings and reported as part of the consolidated statements of comprehensive income (loss).

Credit Risk and Non-Agency Securities- At March 31, 2018 and December 31, 2017, all of our Credit Risk and Non-Agency Securities were classified as trading securities. Credit Risk and Non-Agency Securities classified as trading are reported at their estimated fair values with unrealized gains and losses included in Other Income (Loss) as a component of the consolidated statements of operations.

Interest-Only Securities - At March 31, 2018 and December 31, 2017, all of our Interest-Only Securities were classified as trading securities. Interest-Only Securities represent the right to receive a specified proportion of the contractual interest flows of specific Agency MBS. Interest-Only Securities classified as trading are reported at their estimated fair values with unrealized gains and losses included in Other Income (Loss) as a component of the consolidated statements of operations.

U.S. Treasury Securities - At March 31, 2018, all of our U.S. Treasury Securities were classified as trading securities. U.S. Treasury Securities classified as trading are reported at their estimated fair values with unrealized gains and losses included in Other Income (Loss) as a component of the consolidated statements of operations. We did not have any U.S. Treasury Securities at December 31, 2017.

Receivables and Payables for Unsettled Sales and Purchases

We account for purchases and sales of securities on the trade date, including purchases and sales for forward settlement. Receivables and payables for unsettled trades represent the agreed trade price multiplied by the outstanding balance of the securities at the balance sheet date.

10

ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

Accrued Interest Receivable and Payable

Accrued interest receivable includes interest accrued between payment dates on securities. Accrued interest payable includes interest payable on our repurchase agreements and may, at certain times, contain interest payable on U.S. Treasury Securities sold short.

Repurchase Agreements

We finance the acquisition of our MBS through the use of repurchase agreements. Our repurchase agreements are secured by our MBS and bear interest rates that have historically moved in close relationship to the Federal Funds Rate and the London Interbank Offered Rate (“LIBOR”). Under these repurchase agreements, we sell MBS to a lender and agree to repurchase the same MBS in the future for a price that is higher than the original sales price. The difference between the sales price that we receive and the repurchase price that we pay represents interest paid to the lender. A repurchase agreement operates as a financing arrangement under which we pledge our MBS as collateral to secure a loan which is equal in value to a specified percentage of the estimated fair value of the pledged collateral. We retain beneficial ownership of the pledged collateral. At the maturity of a repurchase agreement, we are required to repay the loan and concurrently receive back our pledged collateral from the lender or, with the consent of the lender, we may renew such agreement at the then prevailing interest rate. The repurchase agreements may require us to pledge additional assets to the lender in the event the estimated fair value of the existing pledged collateral declines.

In addition to the repurchase agreement financing discussed above, at certain times we have entered into reverse repurchase agreements with certain of our repurchase agreement counterparties. Under a typical reverse repurchase agreement, we purchase U.S. Treasury Securities from a borrower in exchange for cash and agree to sell the same securities in the future in exchange for a price that is higher than the original purchase price. The difference between the purchase price originally paid and the sale price represents interest received from the borrower. Reverse repurchase agreement receivables and repurchase agreement liabilities are presented net when they meet certain criteria, including being with the same counterparty, being governed by the same master repurchase agreement (“MRA”), settlement through the same brokerage or clearing account and maturing on the same day. We did not have any reverse repurchase agreements outstanding at March 31, 2018 and December 31, 2017.

Derivatives, at Fair Value

We recognize all derivatives as either assets or liabilities at fair value on our consolidated balance sheets. All changes in the fair values of our derivatives are reflected in our consolidated statements of operations. We designate derivatives as hedges for tax purposes and any unrealized derivative gains or losses would not affect our distributable net taxable income. These transactions include interest rate swap contracts, interest rate swaptions and basis swap contracts. We also may utilize forward contracts for the purchase or sale of TBA Agency Securities. We account for TBA Agency Securities as derivative instruments if it is reasonably possible that we will not take or make physical delivery of the Agency Security upon settlement of the contract. We account for TBA dollar roll transactions as a series of derivative transactions.

We may also purchase and sell TBA Agency Securities as a means of investing in and financing Agency Securities (thereby increasing our “at risk” leverage) or as a means of disposing of or reducing our exposure to Agency Securities (thereby reducing our “at risk” leverage). Pursuant to TBA Agency Securities, we agree to purchase or sell, for future delivery, Agency Securities with certain principal and interest terms and certain types of collateral, but the particular Agency Securities to be delivered are not identified until shortly before the TBA settlement date. We may also choose, prior to settlement, to move the settlement of these securities out to a later date by entering into an offsetting short or long position (referred to as a “pair off”), net settling the paired off positions for cash, and simultaneously purchasing or selling a similar TBA Agency Security for a later settlement date. This transaction is commonly referred to as a “dollar roll.” When it is reasonably possible that we will pair off a TBA Agency Security, we account for that contract as a derivative.

11

ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

Revenue Recognition

Agency Securities - Interest income is earned and recognized on Agency Securities based on their unpaid principal amounts and their contractual terms. Recognition of interest income commences on the settlement date of the purchase transaction and continues through the settlement date of the sale transaction. Premiums and discounts associated with the purchase of Multi-Family MBS, which are generally not subject to prepayment, are amortized or accreted into interest income over the contractual lives of the securities using a level yield method. Premiums and discounts associated with the purchase of other Agency Securities are amortized or accreted into interest income over the actual lives of the securities, reflecting actual prepayments as they occur.

•Fair Value of Agency Securities: We invest in Agency Securities representing interests in or obligations backed by pools of fixed rate, hybrid adjustable rate and adjustable rate mortgage loans. GAAP requires us to classify our investments as either trading, available for sale or held to maturity securities. Management determines the appropriate classifications of the securities at the time they are acquired and evaluates the appropriateness of such classifications at each balance sheet date. We currently classify all of our Agency Securities as available for sale. Agency Securities classified as available for sale are reported at their estimated fair values with unrealized gains and losses excluded from earnings and reported as part of the statements of comprehensive income (loss).

•Agency Security purchase and sale transactions (including purchase of TBA Agency Securities): Purchases and Sales are recorded on the trade date to the extent it is probable that we will take or make timely physical delivery of the related securities. Gains or losses realized from the sale of securities are included in income and are determined using the specific identification method.

•Impairment of Assets: We evaluate Agency Securities for other than temporary impairment at least on a quarterly basis and more frequently when economic or market concerns warrant such evaluation. We consider an impairment to be other than temporary if we (1) have the intent to sell the Agency Securities, (2) believe it is more likely than not that we will be required to sell the securities before recovery (for example, because of liquidity requirements or contractual obligations) or (3) a credit loss exists. Impairment losses recognized establish a new cost basis for the related Agency Securities.

Credit Risk and Non-Agency Securities and Interest-Only Securities - Interest income on Credit Risk and Non-Agency Securities and Interest-Only Securities is recognized using the effective yield method over the life of the securities based on the future cash flows expected to be received. Future cash flow projections and related effective yields are determined for each security and updated quarterly. Other than temporary impairments, which establish a new cost basis in the security for purposes of calculating effective yields, are recognized when the fair value of a security is less than its cost basis and there has been an adverse change in the future cash flows expected to be received. Other changes in future cash flows expected to be received are recognized prospectively over the remaining life of the security.

U.S. Treasury Securities - Interest income on U.S. Treasury Securities is recognized based on their unpaid principal amounts and their contractual terms. Recognition of interest income commences on the settlement date of the purchase transaction and continues through the settlement date of the sale transaction.

Comprehensive Income (Loss)

Comprehensive income (loss) refers to changes in equity during a period from transactions and other events and circumstances from non-owner sources. It includes all changes in equity during a period, except those resulting from investments by owners and distributions to owners.

Note 4 -Recent Accounting Pronouncements

We consider the applicability and impact of all Accounting Standards Updates issued by the Financial Accounting Standards Board. Those not listed below were deemed to be either not applicable, are not expected to have a significant impact

12

ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

on our consolidated financial statements when adopted, or did not have a significant impact on our consolidated financial statements upon adoption.

In August 2017, the Financial Accounting Standards Board issued ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The standard amends the hedge accounting recognition and presentation requirements in ASC 815. The standard is effective for fiscal years beginning after December 15, 2018 and interim periods therein, however, early adoption is permitted upon its issuance. The Company is currently assessing the impact of the standard and whether it may apply hedge accounting in the future.

In July 2016, the Financial Accounting Standards Board issued ASU 2016-13, Financial Instruments–Credit Losses (Topic 326). The standard introduces a new model for recognizing credit losses on financial instruments based on an estimate of current expected credit losses. The standard will apply to (1) loans, accounts receivable, trade receivables, and other financial assets measured at amortized cost, (2) loan commitments and certain other off–balance sheet credit exposures, (3) debt securities and other financial assets measured at fair value through other comprehensive income, and (4) beneficial interests in securitized financial assets. The standard is effective for fiscal years beginning after December 15, 2019. The Company is assessing the impact of this standard but does not expect it to have significant impact on the consolidated financial statements. However, the impact on the consolidated financial statements will depend on the debt securities held by the Company on the date of the adoption.

Note 5 -Fair Value of Financial Instruments

Our valuation techniques for financial instruments use observable and unobservable inputs. Observable inputs reflect readily obtainable data from third party sources, while unobservable inputs reflect management’s market assumptions. The Accounting Standards Codification Topic No. 820, “Fair Value Measurement,” classifies these inputs into the following hierarchy:

Level 1Inputs - Quoted prices for identical instruments in active markets.

Level 2Inputs - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.

Level 3Inputs - Prices determined using significant unobservable inputs. Unobservable inputs may be used in situations where quoted prices or observable inputs are unavailable (for example, when there is little or no market activity for an investment at the end of the period). Unobservable inputs reflect management’s assumptions about the factors that market participants would use in pricing an asset or liability, and would be based on the best information available.

At the beginning of each quarter, we asses the assets and liabilities that are measured at fair value on a recurring basis to determine if any transfers between levels in the fair value hierarchy are needed.

The following describes the valuation methodologies used for our assets and liabilities measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy. Any transfers between levels are assumed to occur at the beginning of the reporting period.

Cash - Cash includes cash on deposit with financial institutions. The carrying amount of cash is deemed to be its fair value and is classified as Level 1. Cash balances posted by us to counterparties or posted by counterparties to us as collateral are classified as Level 2 because they are integrally related to the Company's repurchase financing and interest rate swap agreements, which are classified as Level 2.

Agency Securities - Fair value for the Agency Securities in our securities portfolio is based on obtaining a valuation for each Agency Security from third party pricing services and/or dealer quotes. The third party pricing services use common market pricing methods that may include pricing models that may incorporate such factors as coupons, prepayment speeds, spread to the Treasury curves and interest rate swap curves, duration, periodic and life caps and credit enhancement. If the fair value of an Agency Security is not available from the third party pricing services or such data appears unreliable, we obtain

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ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

pricing indications from up to three dealers who make markets in similar Agency Securities. Management reviews pricing used to ensure that current market conditions are properly reflected. This review includes, but is not limited to, comparisons of similar market transactions or alternative third party pricing services, dealer pricing indications and comparisons to a third party pricing model. Fair values obtained from the third party pricing services for similar instruments are classified as Level 2 securities if the inputs to the pricing models used are consistent with the Level 2 definition. If quoted prices for a security are not reasonably available from the third party pricing service, but dealer pricing indications are, the security will be classified as a Level 2 security. If neither is available, management will determine the fair value based on characteristics of the security that we receive from the issuer and based on available market information and classify it as a Level 3 security. At March 31, 2018 and December 31, 2017, all of our Agency Security fair values are classified as Level 2 based on the inputs used by our third party pricing services and dealer quotes.

Credit Risk and Non-Agency Securities - The fair value for the Credit Risk and Non-Agency Securities in our securities portfolio is based on obtaining a valuation for each Credit Risk and Non-Agency Security from third party pricing services and/or dealer quotes. The third party pricing services incorporate such factors as collateral type, bond structure and priority of payments, coupons, prepayment speeds, defaults, delinquencies and severities. If the fair value of a Credit Risk and Non-Agency Security is not available from the third party pricing services or such data appears unreliable, we obtain pricing indications from up to three dealers who make markets in similar Credit Risk and Non-Agency Securities. Management reviews pricing used to ensure that current market conditions are properly reflected. This review includes, but is not limited to, comparisons of similar market transactions or alternative third party pricing services, dealer pricing indications and comparisons to fair value determined using a third party pricing model. Fair values obtained from the third party pricing services for similar instruments are classified as Level 2 securities if the inputs to the pricing models used are consistent with the Level 2 definition. If quoted prices for a security are not reasonably available from the third party pricing service, but dealer pricing indications are, the security will be classified as a Level 2 security. If neither is available, management will determine the fair value based on characteristics of the security that we receive from the issuer and based on available market information and classify it as a Level 3 security. At March 31, 2018 and December 31, 2017, all of our Credit Risk and Non-Agency Securities are classified as Level 2 based on the inputs used by our third party pricing services and dealer quotes.

Interest-Only Securities - The fair value for the Interest-Only Securities in our securities portfolio is based on obtaining a valuation for each Interest-Only Security from third party pricing services and/or dealer quotes. The third party pricing services use common market pricing methods that may include pricing models consistent with those models used to price Agency Securities underlying the Interest-Only Securities that may incorporate such factors as coupons, prepayment speeds, spread to the Treasury curves and interest rate swap curves, duration, periodic and life caps and credit enhancement. If the fair value of an Interest-Only Security is not available from the third party pricing services or such data appears unreliable, we obtain pricing indications from up to three dealers who make markets in similar Interest-Only Securities. Management reviews pricing used to ensure that current market conditions are properly reflected. This review includes, but is not limited to, comparisons of similar market transactions or alternative third party pricing services, dealer pricing indications and comparisons to a third party pricing model. Fair values obtained from the third party pricing services for similar instruments are classified as Level 2 securities if the inputs to the pricing models used are consistent with the Level 2 definition. If quoted prices for a security are not reasonably available from the third party pricing service, but dealer pricing indications are, the security will be classified as a Level 2 security. If neither is available, management will determine the fair value based on characteristics of the security that we receive from the issuer and based on available market information and classify it as a Level 3 security. At March 31, 2018 and December 31, 2017, all of our Interest-Only Security fair values are classified as Level 2 based on the inputs used by our third party pricing services and dealer quotes.

U.S. Treasury Securities- Fair value for the U.S. Treasury Securities in our securities portfolio is based on obtaining a valuation for each U.S. Treasury Securities from third party pricing services and/or dealer quotes. At March 31, 2018, all of our U.S. Treasury Securities fair values are classified as Level 1, as quoted unadjusted prices are available in active markets for identical assets.

Receivables and Payables for Unsettled Sales and Purchases - The carrying amount is generally deemed to be fair value because of the relatively short time to settlement. Such receivables and payables are classified as Level 2 because they are effectively secured by the related securities and could potentially be subject to counterparty credit considerations.

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ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

Repurchase Agreements - The fair value of repurchase agreements reflects the present value of the contractual cash flows discounted at the estimated LIBOR based market interest rates at the valuation date for repurchase agreements with a term equivalent to the remaining term to interest rate repricing, which may be at maturity, of our repurchase agreements. The fair value of the repurchase agreements approximates their carrying amount due to the short-term nature of these financial instruments. Our repurchase agreements are classified as Level 2.

Derivative Transactions- The fair values of our interest rate swap contracts, interest rate swaptions and basis swaps are valued using information provided by third party pricing services that incorporate common market pricing methods that may include current interest rate curves, forward interest rate curves and market spreads to interest rate curves. We estimate the fair value of TBA Agency Securities based on similar methods used to value our Agency Securities. Management compares the pricing information received to dealer quotes to ensure that the current market conditions are properly reflected. The fair values of our interest rate swap contracts, interest rate swaptions, basis swap contracts and TBA Agency Securities are classified as Level 2.

The following tables provide a summary of our assets and liabilities that are measured at fair value on a recurring basis at March 31, 2018 and December 31, 2017.

	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Balance at March 31, 2018
Assets at Fair Value:
Agency Securities	$	—	$	6,245,432	$	—	$	6,245,432
Credit Risk and Non-Agency Securities	$	—	$	968,950	$	—	$	968,950
Interest-Only Securities	$	—	$	24,933	$	—	$	24,933
U.S. Treasury Securities	$	670,696	$	—	$	—	$	670,696
Derivatives	$	—	$	135,703	$	—	$	135,703
Liabilities at Fair Value:
Derivatives	$	—	$	6,882	$	—	$	6,882

There were no transfers of assets or liabilities between the levels of the fair value hierarchy during the three months ending March 31, 2018.

	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Balance at December 31, 2017
Assets at Fair Value:
Agency Securities	$	—	$	7,478,966	$	—	$	7,478,966
Credit Risk and Non-Agency Securities	$	—	$	975,829	$	—	$	975,829
Interest-Only Securities	$	—	$	25,752	$	—	$	25,752
Derivatives	$	—	$	37,211	$	—	$	37,211
Liabilities at Fair Value:
Derivatives	$	—	$	7,948	$	—	$	7,948

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ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

The following tables provide a summary of the carrying values and fair values of our financial assets and liabilities not carried at fair value but for which fair value is required to be disclosed at March 31, 2018 and December 31, 2017.

March 31, 2018					Fair Value Measurements using:
	Carrying Value		Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial Assets:
Cash	$	216,497	$	216,497	$	216,497	$	—	$	—
Cash collateral posted to counterparties	$	13,150	$	13,150	$	—	$	13,150	$	—
Receivable for unsettled sales	$	68,796	$	68,796	$	—	$	68,796	$	—
Accrued interest receivable	$	20,492	$	20,492	$	—	$	20,492	$	—
Subordinated loans due from BUCKLER Securities LLC	$	105,000	$	105,000	$	—	$	105,000	$	—
Financial Liabilities:
Repurchase agreements	$	6,853,715	$	6,853,715	$	—	$	6,853,715	$	—
Cash collateral posted by counterparties	$	127,721	$	127,721	$	—	$	127,721	$	—
Payable for unsettled purchases	$	227,409	$	227,409	$	—	$	227,409	$	—
Accrued interest payable- repurchase agreements	$	5,274	$	5,274	$	—	$	5,274	$	—

December 31, 2017					Fair Value Measurements using:
	Carrying Value		Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial Assets:
Cash	$	265,232	$	265,232	$	265,232	$	—	$	—
Cash collateral posted to counterparties	$	17,162	$	17,162	$	—	$	17,162	$	—
Accrued interest receivable	$	22,165	$	22,165	$	—	$	22,165	$	—
Subordinated loans due from BUCKLER Securities LLC	$	105,000	105,000		$	—	$	105,000	$	—
Financial Liabilities:
Repurchase agreements	$	7,555,917	$	7,555,917	$	—	$	7,555,917	$	—
Cash collateral posted by counterparties	$	29,593	$	29,593	$	—	$	29,593	$	—
Accrued interest payable- repurchase agreements	$	6,452	$	6,452	$	—	$	6,452	$	—

16

ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

The following table provides a summary of the changes in Level 3 assets measured at fair value on a recurring basis at March 31, 2018 and March 31, 2017.

	For the Three Months Ended March 31,
Credit Risk and Non-Agency Securities	2018		2017
Balance, beginning of period	$	—	$	1,052,170
Purchases of Credit Risk and Non-Agency Securities, at cost	—		8,224
Principal repayments of Credit Risk and Non-Agency Securities	—		(16,088		)
Gain on Credit Risk and Non-Agency Securities	—		24,284
Accretion of net discount on Credit Risk and Non-Agency Securities	—		848
Balance, end of period	$	—	$	1,069,438
Gain on Credit Risk and Non-Agency Securities	$	—	$	24,284

The significant unobservable inputs used in the fair value measurement of our Level 3 Credit Risk and Non-Agency Securities at March 31, 2017, included assumptions for underlying loan collateral, cumulative default rates and loss severities in the event of default, as well as discount rates. At the beginning of the third quarter 2017, we determined that third party pricing services and or/dealer quotes available for Credit Risk and Non-Agency Securities meet the criteria for Level 2 classification. Fair values obtained from third party pricing services for similar instruments are classified as Level 2 securities, if the inputs to the pricing model used is consistent with the Level 2 definition. We transferred the securities to Level 2 from Level 3 at the commencement of the third quarter in 2017.

Note 6 -Agency Securities

At March 31, 2018 and December 31, 2017, investments in Agency Securities accounted for 79.0% and 88.2% of our securities portfolio.

We evaluated our Agency Securities with unrealized losses at March 31, 2018, March 31, 2017 and December 31, 2017, to determine whether there was an other than temporary impairment. All of our Agency Securities are issued and guaranteed by GSEs or Ginnie Mae. The GSEs have a long term credit rating of AA+. At those dates, we also considered whether we intended to sell Agency Securities and whether it was more likely than not that we could meet our liquidity requirements and contractual obligations without selling Agency Securities.

Results of this evaluation for the three months ending March 31, 2018 - At March 31, 2018, we recognized additional losses on Agency Securities, previously identified during 2017, totaling $12,090 for the three months ended March 31, 2018 in our consolidated financial statements of operations. The aggregate fair value of the remaining identified low yielding Agency Securities is $681,827 at March 31, 2018. We determined that there was no other than temporary impairment of our remaining Agency Securities as of March 31, 2018.

Results of this evaluation for the period ending March 31, 2017 - No other than temporary impairment was recognized for the three months ended March 31, 2017 because we determined that we 1) did not have the intent to sell the Agency Securities in an unrealized loss position, 2) did not believe it more likely than not that we were required to sell the securities before recovery (for example, because of liquidity requirements or contractual obligations), and/or 3) determined that a credit loss did not exist.

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ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

Results of this evaluation for the year ended December 31, 2017 - During the second quarter of 2017, we identified certain low yielding Agency Securities that we replaced with securities having more attractive returns as market conditions permit. Accordingly, we recognized losses totaling $13,707 in our consolidated statements of operations for the year ended December 31, 2017, thereby establishing a new cost basis for those Agency Securities with an aggregate fair value of $795,724 as of December 31, 2017. We determined that there was no other than temporary impairment of our remaining Agency Securities as of December 31, 2017.

At March 31, 2018, we had the following Agency Securities in an unrealized gain or loss position as presented below. The components of the carrying value of our Agency Securities at March 31, 2018 are also presented below. Our Agency Securities had a weighted average coupon of 3.71% at March 31, 2018.

March 31, 2018	Amortized Cost		Gross Unrealized Loss			Gross Unrealized Gain		Fair Value		Percent of Total
Fannie Mae
ARMs & Hybrids	$	26,277	$	(304	)	$	74	$	26,047	0.42	%
Multi-Family MBS	1,482,115		(19,283		)	1,235		1,464,067		23.44
10 Year Fixed	28,927		(403		)	90		28,614		0.46
15 Year Fixed	939,147		(11,784		)	—		927,363		14.85
20 Year Fixed	28,155		(1,016		)	—		27,139		0.43
25 Year Fixed	25,185		(669		)	—		24,516		0.39
30 Year Fixed	2,429,537		(59,659		)	281		2,370,159		37.95
Total Fannie Mae	$	4,959,343	$	(93,118	)	$	1,680	$	4,867,905	77.94	%
Freddie Mac
10 Year Fixed	32,886		(262		)	168		32,792		0.53
15 Year Fixed	337,047		(1,391		)	13		335,669		5.37
25 Year Fixed	40,390		(1,770		)	—		38,620		0.62
30 Year Fixed	960,577		(25,613		)	—		934,964		14.97
Total Freddie Mac	$	1,370,900	$	(29,036	)	$	181	$	1,342,045	21.49	%
Ginnie Mae
ARMs & Hybrids	35,762		(538		)	1		35,225		0.57
10 Year Fixed	255		—			2		257		0.00
Total Ginnie Mae	$	36,017	$	(538	)	$	3	$	35,482	0.57	%
Total Agency Securities	$	6,366,260	$	(122,692	)	$	1,864	$	6,245,432	100.00	%

18

ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

At December 31, 2017, we had the following securities in an unrealized gain or loss position as presented below. The components of the carrying value of our Agency Securities at December 31, 2017 are also presented below. Our Agency Securities had a weighted average coupon of 3.68% at December 31, 2017.

December 31, 2017	Amortized Cost		Gross Unrealized Loss			Gross Unrealized Gain		Fair Value		Percent of Total
Fannie Mae
ARMs & Hybrids	$	28,199	$	(229	)	$	112	$	28,082	0.38	%
Multi-Family MBS	1,799,737		(5,132		)	16,950		1,811,555		24.22
10 Year Fixed	60,634		(347		)	137		60,424		0.81
15 Year Fixed	1,028,797		(4,955		)	625		1,024,467		13.70
20 Year Fixed	29,832		(621		)	—		29,211		0.39
25 Year Fixed	9,367		(140		)	—		9,227		0.12
30 Year Fixed	2,938,655		(18,910		)	431		2,920,176		39.05
Total Fannie Mae	$	5,895,221	$	(30,334	)	$	18,255	$	5,883,142	78.67	%
Freddie Mac
10 Year Fixed	37,254		(158		)	228		37,324		0.50
15 Year Fixed	354,878		(211		)	787		355,454		4.75
25 Year Fixed	41,383		(857		)	—		40,526		0.54
30 Year Fixed	1,131,584		(7,300		)	—		1,124,284		15.03
Total Freddie Mac	$	1,565,099	$	(8,526	)	$	1,015	$	1,557,588	20.82	%
Ginnie Mae
ARMs & Hybrids	38,494		(532		)	4		37,966		0.51
10 Year Fixed	263		—			7		270		0.00
Total Ginnie Mae	$	38,757	$	(532	)	$	11	$	38,236	0.51	%
Total Agency Securities	$	7,499,077	$	(39,392	)	$	19,281	$	7,478,966	100.00	%

Recognition of interest income commences on the settlement date of the purchase transaction and continues through the settlement date of the sale transaction. At March 31, 2018, we had investment related receivables of $68,796 with respect to unsettled sales and investment related payables of $227,409 with respect to unsettled purchases. At December 31, 2017 we did not have any investment related receivables or payables with respect to unsettled sales and purchases of our Agency Securities.

Actual maturities of Agency Securities are generally shorter than stated contractual maturities because actual maturities of Agency Securities are affected by the contractual lives of the underlying mortgages, periodic payments of principal and prepayments of principal.

19

ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

The following table summarizes the weighted average lives of our Agency Securities at March 31, 2018 and December 31, 2017.

	March 31, 2018				December 31, 2017
Weighted Average Life of all Agency Securities	Fair Value		Amortized Cost		Fair Value		Amortized Cost
Less than one year	$	—	$	—	$	—	$	—
Greater than or equal to one year and less than three years	41,918		41,986		29,126		29,269
Greater than or equal to three years and less than five years	1,133,824		1,144,807		1,353,036		1,353,998
Greater than or equal to five years	5,069,690		5,179,467		6,096,804		6,115,810
Total Agency Securities	$	6,245,432	$	6,366,260	$	7,478,966	$	7,499,077

We use a third party model to calculate the weighted average lives of our Agency Securities. Weighted average life is calculated based on expectations for estimated prepayments for the underlying mortgage loans of our Agency Securities. These estimated prepayments are based on assumptions such as interest rates, current and future home prices, housing policy and borrower incentives. The weighted average lives of our Agency Securities at March 31, 2018 and December 31, 2017 in the table above are based upon market factors, assumptions, models and estimates from the third party model and also incorporate management’s judgment and experience. The actual weighted average lives of our Agency Securities could be longer or shorter than estimated.

The following table presents the unrealized losses and estimated fair value of our Agency Securities by length of time that such securities have been in a continuous unrealized loss position at March 31, 2018 and December 31, 2017.

	Unrealized Loss Position For:
	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
March 31, 2018	$	4,208,407	$	(93,373	)	$	932,085	$	(29,319	)	$	5,140,492	$	(122,692	)
December 31, 2017	$	4,355,924	$	(28,906	)	$	733,637	$	(10,486	)	$	5,089,561	$	(39,392	)

During the three months ended March 31, 2018, we sold $1,137,792 (inclusive of $68,796 receivable for unsettled sales) of Agency Securities, which resulted in a realized loss of $(32,603). During the three months ended March 31, 2017, we sold $1,387,366 of Agency Securities, which resulted in a realized loss of $(11,154). Sales of Agency Securities are done to reposition our securities portfolio and to reach our target level of liquidity.

Note 7 -Credit Risk and Non-Agency Securities

At March 31, 2018 and December 31, 2017, investments in Credit Risk and Non-Agency Securities accounted for 12.2% and 11.5% of our securities portfolio.

20

ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

The components of the carrying value of our Credit Risk and Non-Agency Securities at March 31, 2018 are presented in the table below. 

	Credit Risk and Non-Agency Securities
March 31, 2018	Fair Value		Amortized  Cost		Principal Amount		Weighted Average Coupon
Credit Risk Transfer	$	866,736	$	748,078	$	758,090	6.37%
Legacy Prime Fixed	16,267		14,766		18,585		6.03%
Legacy ALT-A Fixed	53,401		47,129		64,175		5.58%
Legacy Prime Hybrid	9,874		9,006		10,821		3.27%
Legacy ALT-A Hybrid	4,476		3,763		4,708		3.55%
New Issue Prime Fixed	18,196		17,689		18,716		3.69%
Total Credit Risk and Non-Agency Securities	$	968,950	$	840,431	$	875,095	6.22%

The components of the carrying value of our Credit Risk and Non-Agency Securities at December 31, 2017 are presented in the table below. 

	Credit Risk and Non-Agency Securities
December 31, 2017	Fair Value		Amortized  Cost		Principal Amount		Weighted Average Coupon
Credit Risk Transfer	$	870,494	$	753,422	$	764,172	6.05%
Legacy Prime Fixed	16,778		15,287		19,237		6.03%
Legacy ALT-A Fixed	54,727		48,516		65,920		5.85%
Legacy Prime Hybrid	10,469		9,517		11,452		3.17%
Legacy ALT-A Hybrid	4,660		3,895		4,901		3.47%
New Issue Prime Fixed	18,701		17,957		19,025		3.69%
Total Credit Risk and Non-Agency Securities	$	975,829	$	848,594	$	884,707	5.95%

Our Credit Risk Transfer securities are collaterized by residential mortgage loans meeting agency criteria. However, our securities principal and interest are not guaranteed by the agencies. Credit Risk Transfer securities include tranches issued since 2014. Our Legacy and New Issue Prime Fixed securities are collaterized by residential mortgage loans not guaranteed by any agency. Legacy Prime Fixed, Legacy Alt-A Fixed securities include tranches issued between 2005-2007. New Issue Prime Fixed securities include tranches issued in 2013.

The following table summarizes the weighted average lives of our Credit Risk and Non-Agency Securities at March 31, 2018 and December 31, 2017.

	March 31, 2018				December 31, 2017
Weighted Average Life of all Credit Risk and Non-Agency Securities	Fair Value		Amortized Cost		Fair Value		Amortized Cost
Less than one year	$	—	$	—	$	—	$	—
Greater than or equal to one year and less than three years	—		—		—		—
Greater than or equal to three years and less than five years	152,518		134,877		169,189		149,436
Greater than or equal to five years	816,432		705,554		806,640		699,158
Total Credit Risk and Non-Agency Securities	$	968,950	$	840,431	$	975,829	$	848,594

21

ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

We use a third party model to calculate the weighted average lives of our Credit Risk and Non-Agency Securities. Weighted average life is calculated based on expectations for estimated prepayments for the underlying mortgage loans of our Credit Risk and Non-Agency Securities. These estimated prepayments are based on assumptions such as interest rates, current and future home prices, housing policy and borrower incentives. The weighted average lives of our Credit Risk and Non-Agency Securities at March 31, 2018 and December 31, 2017, in the tables above are based upon market factors, assumptions, models and estimates from the third party model and also incorporate management’s judgment and experience. The actual weighted average lives of our Credit Risk and Non-Agency Securities could be longer or shorter than estimated.

Note 8 -U.S. Treasury Securities

At March 31, 2018, investments in U.S. Treasury Securities accounted for 8.5% of our securities portfolio. We did not have any U.S. Treasury Securities at December 31, 2017.

At March 31, 2018, we had the following U.S. Treasury Securities in an unrealized gain or loss position as presented below. The components of the carrying value of our U.S. Treasury Securities at March 31, 2018 are also presented below.

	Amortized Cost	Gross Unrealized Loss		Gross Unrealized Gain	Fair Value
U.S. Treasury Securities	668,120	(281	)	2,857	670,696

The following table presents the unrealized losses and estimated fair value of our U.S. Treasury Securities by length of time that such securities have been in a continuous unrealized loss position at March 31, 2018.

	Unrealized Loss Position For:
	Less than 12 Months					12 Months or More				Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
March 31, 2018	$	99,180	$	(281	)	$	—	$	—	$	99,180	$	(281	)

Note 9 -Repurchase Agreements

At March 31, 2018, we had MRAs with 46 counterparties and had $6,853,715 in outstanding borrowings with 27 of those counterparties. At December 31, 2017, we had MRAs with 46 counterparties and had $7,555,917 in outstanding borrowings with 32 of those counterparties.

The following table represents the contractual repricing regarding our repurchase agreements to finance our MBS purchases at March 31, 2018 and December 31, 2017. No amounts below are subject to offsetting.

March 31, 2018	Repurchase Agreements		Weighted Average Contractual Rate		Weighted Average Maturity in days	Haircut for Repurchase Agreements (1)
Agency Securities	$	5,481,911	1.92	%	25	4.18	%
Credit Risk and Non-Agency Securities	708,650		2.85	%	14	20.39	%
U.S. Treasury Securities	663,154		1.79	%	1	0.69	%
Total or Weighted Average	$	6,853,715	2.00	%	22	5.84	%

(1) The Haircut represents the weighted average margin requirement, or the percentage amount by which the collateral value must exceed the loan amount.

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ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

December 31, 2017	Repurchase Agreements		Weighted Average Contractual Rate		Weighted Average Maturity in days	Haircut for Repurchase Agreements (1)
Agency Securities	$	6,793,481	1.60	%	55	4.29	%
Credit Risk and Non-Agency Securities	762,436		2.67	%	15	21.68	%
Total or Weighted Average	$	7,555,917	1.71	%	51	6.39	%

(1) The Haircut represents the weighted average margin requirement, or the percentage amount by which the collateral value must exceed the loan amount.

Our repurchase agreements require that we maintain adequate pledged collateral. A decline in the value of the MBS pledged as collateral for borrowings under repurchase agreements could result in the counterparties demanding additional collateral pledges or liquidation of some of the existing collateral to reduce borrowing levels. We manage this risk by maintaining an adequate balance of available cash and unpledged securities. An event of default or termination event under the standard MRA would give our counterparty the option to terminate all repurchase transactions existing with us and require any amount due to be payable immediately. In addition, certain of our MRAs contain a restriction that prohibits our leverage from exceeding twelve times our stockholders’ equity as well as termination events in the case of significant reductions in equity capital. We also may receive cash or securities as collateral from our derivative counterparties which we may use as additional collateral for repurchase agreements. Certain interest rate swap contracts provide for cross collateralization and cross default with repurchase agreements and other contracts with the same counterparty.

	March 31, 2018				December 31, 2017
Maturing or Repricing	Repurchase Agreements		Weighted Average Contractual Rate		Repurchase Agreements		Weighted Average Contractual Rate
Within 30 days	$	4,883,094	2.05	%	$	1,738,768	2.08	%
31 days to 60 days	1,213,295		1.90	%	2,394,450		1.59	%
61 days to 90 days	757,326		1.90	%	3,422,699		1.61	%
Total or Weighted Average	$	6,853,715	2.00	%	$	7,555,917	1.71	%

At March 31, 2018 and December 31, 2017, Buckler Securities LLC, (See Note 16 -Related Party Transactions) accounted for 53.9% and 38.4% of our aggregate borrowings and had an amount at risk of 11.0% and 9.0%, respectively, of our total stockholders' equity with a weighted average maturity of 20 days and 70 days, respectively, on repurchase agreements.

In addition, at March 31, 2018 and December 31, 2017, we had 1 repurchase agreement counterparty individually accounted for between 5% and 10% of our aggregate borrowings. In total, this counterparty accounted for approximately 5.4% and 5.1% of our repurchase agreement borrowings outstanding at March 31, 2018 and December 31, 2017, respectively.

Note 10 -Derivatives

We enter into derivative transactions to manage our interest rate risk exposure. These transactions may include entering into interest rate swap contracts, swaptions and basis swaps. These transactions are designed to lock in funding costs for repurchase agreements associated with our assets in such a way to help assure the realization of net interest margins. Such transactions are based on assumptions about prepayments which, if not realized, will cause transaction results to differ from expectations. Basis swap contracts allow us to exchange one floating interest rate basis for another, for example, 3 month LIBOR and Fed Funds Rates, thereby allowing us to diversify our floating rate basis exposures. We also utilize forward contracts for the purchase or sale of TBA Agency Securities.

We have agreements with our derivative counterparties that provide for the posting of collateral based on the fair values of our interest rate swap contracts, swaptions, basis swap contracts and TBA Agency Securities. Through this margin

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ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

process, either we or our swap counterparty may be required to pledge cash or Agency Securities as collateral. Collateral requirements vary by counterparty and change over time based on the fair value, notional amount and remaining term of the contracts. Certain interest rate swap contracts provide for cross collateralization and cross default with repurchase agreements and other contracts with the same counterparty.

Interest rate swaptions generally provide us the option to enter into an interest rate swap agreement at a certain point of time in the future with a predetermined notional amount, stated term and stated rate of interest in the fixed leg and interest rate index on the floating leg.

TBA Agency Securities are forward contracts for the purchase (“long position”) or sale (“short position”) of Agency Securities at a predetermined price, face amount, issuer, coupon and stated maturity on an agreed-upon future date. The specific Agency Securities delivered into the contract upon the settlement date, published each month by the Securities Industry and Financial Markets Association, are not known at the time of the transaction. We may enter into TBA Agency Securities as a means of hedging against short-term changes in interest rates. We may also enter into TBA Agency Securities as a means of acquiring or disposing of Agency Securities and we may from time to time utilize TBA dollar roll transactions to finance Agency Security purchases. We estimate the fair value of TBA Agency Securities based on similar methods used to value our Agency Securities.

The following tables present information about our derivatives at March 31, 2018 and December 31, 2017.

March 31, 2018

Derivative Type	Remaining / Underlying Term	Weighted Average Remaining Swap/Option Term (Months)	Weighted Average Rate		Notional Amount (3)		Asset Fair Value (1)		Liability Fair Value (1)
Interest rate swap contracts	0-12 Months	2	0.92	%	$	50,000	$	203	$	—
Interest rate swap contracts	13-24 Months	20	1.21	%	550,000		8,658		—
Interest rate swap contracts	25-36 Months	32	1.83	%	1,675,000		16,255		—
Interest rate swap contracts	73-84 Months	68	1.98	%	2,650,000		64,861		(142		)
Interest rate swap contracts	85-96 Months	96	1.95	%	50,000		1,493		—
Interest rate swap contracts	97-108 Months	104	1.95	%	1,200,000		37,399		—
Interest rate swap contracts	109-120 Months	118	2.33	%	625,000		3,175		(2,455		)
TBA Agency Securities (2)	n/a	n/a	n/a		4,300,000		3,659		(4,285		)
Total or Weighted Average					$	11,100,000	$	135,703	$	(6,882	)

(1) See Note 5, “Fair Value of Financial Instruments” for additional discussion.

(2) Implied cost basis of $4,425,348 and implied market value of $4,424,721. Includes $1,750,000 notional amount of forward settling TBA Agency Securities.

(3) Includes $500,000 notional of forward settling swap contracts that settle within 6 months.

24

ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

December 31, 2017

Derivative Type	Remaining / Underlying Term	Weighted Average Remaining Swap / Option Term (Months)	Weighted Average Rate		Notional Amount		Asset Fair Value (1)		Liability Fair Value (1)
Interest rate swap contracts	0-12 Months	5	0.92	%	$	50,000	$	191	$	—
Interest rate swap contracts	13-24 Months	23	1.21	%	550,000		6,398		—
Interest rate swap contracts	25-36 Months	30	1.48	%	675,000		5,495		—
Interest rate swap contracts	61-72 Months	65	1.97	%	1,975,000		11,624		(250		)
Interest rate swap contracts	73-84 Months	79	1.89	%	575,000		3,306		(1,885		)
Interest rate swap contracts	97-108 Months	107	1.93	%	1,050,000		9,263		(10		)
Interest rate swap contracts	109-120 Months	114	2.10	%	375,000		—		(3,545		)
TBA Agency Securities (2)	0-60 Months	n/a	n/a		1,600,000		934		(2,258		)
Total or Weighted Average					$	6,850,000	$	37,211	$	(7,948	)

(1) See Note 5, “Fair Value of Financial Instruments” for additional discussion.

(2) Implied cost basis of $1,674,438 and implied market value of $1,673,113.

We have netting arrangements in place with all derivative counterparties pursuant to standard documentation developed by the International Swap and Derivatives Association. We are also required to post or hold cash collateral based upon the net underlying market value of our open positions with the counterparty.

The following tables present information about the potential effects of netting if we were to offset the assets and liabilities of these financial instruments on the accompanying consolidated balance sheets. Currently, we present these financial instruments at their gross amounts and they are included in derivatives, at fair value on the accompanying consolidated balance sheet at March 31, 2018.

March 31, 2018			Gross Amounts Not Offset in the consolidated Balance Sheet
Assets	Gross and Net Amounts of Assets Presented in the consolidated Balance Sheet		Financial Instruments			Cash Collateral			Net Amount
Interest rate swap contracts	$	132,044	$	(2,597	)	$	(120,317	)	$	9,130
TBA Agency Securities	3,659		(4,285		)	5,583			4,957
Totals	$	135,703	$	(6,882	)	$	(114,734	)	$	14,087

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ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

March 31, 2018				Gross Amounts Not Offset in the consolidated Balance Sheet
Liabilities	Gross and Net Amounts of Liabilities Presented in the consolidated Balance Sheet			Financial Instruments		Cash Collateral		Net Amount
Interest rate swap contracts	$	(2,597	)	$	2,597	$	—	$	—
Agency Securities TBA	(4,285		)	4,285		—		—
Totals	$	(6,882	)	$	6,882	$	—	$	—

The following tables present information about the potential effects of netting if we were to offset the assets and liabilities of these financial instruments on the accompanying consolidated balance sheets. Currently, we present these financial instruments at their gross amounts and they are included in derivatives, at fair value on the accompanying consolidated balance sheet at December 31, 2017.

December 31, 2017			Gross Amounts Not Offset in the consolidated Balance Sheet
Assets	Gross and Net Amounts of Assets Presented in the consolidated Balance Sheet		Financial Instruments			Cash Collateral			Net Amount
Interest rate swap contracts	$	36,277	$	(5,690	)	$	(22,689	)	$	7,898
Agency Securities TBA	934		(2,258		)	8,068			6,744
Totals	$	37,211	$	(7,948	)	$	(14,621	)	$	14,642

December 31, 2017				Gross Amounts Not Offset in the consolidated Balance Sheet
Liabilities	Gross and Net Amounts of Liabilities Presented in the consolidated Balance Sheet			Financial Instruments		Cash Collateral		Net Amount
Interest rate swap contracts	$	(5,690	)	$	5,690	$	—	$	—
Agency Securities TBA	(2,258		)	2,258		—		—
Totals	$	(7,948	)	$	7,948	$	—	$	—

26

ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

The following table represents the location and information regarding our derivatives which are included in Other Income in the accompanying consolidated statements of operations for the three months ended March 31, 2018 and March 31, 2017.

		Income (Loss) Recognized
			For the Three Months Ended March 31,
Derivatives	Location on consolidated statements of operations		2018			2017
Interest rate swap contracts:
Realized gain	Realized loss on derivatives		$	2,655		$	—
Interest income	Realized loss on derivatives		22,169			8,374
Interest expense	Realized loss on derivatives		(27,848		)	(19,008		)
Changes in fair value	Unrealized gain on derivatives		92,329			17,814
			$	89,305		$	7,180
TBA Agency Securities:
Realized loss	Realized loss on derivatives		(35,580		)	(1,615		)
Changes in fair value	Unrealized gain on derivatives		4,872			5,954
			$	(30,708	)	$	4,339
Totals			$	58,597		$	11,519

Note 11 -Commitments and Contingencies

Management Agreements with ACM

The Company is managed by ACM, pursuant to management agreements with ARMOUR and JAVELIN (see also Note 16, “Related Party Transactions”). The management agreements entitle ACM to receive management fees payable monthly in arrears. Currently, the monthly ARMOUR management fee is 1/12th of the sum of (a) 1.5% of gross equity raised up to $1.0 billion plus (b) 0.75% of gross equity raised in excess of $1.0 billion. The cost of repurchased stock and any dividend representing a return of capital for tax purposes will reduce the amount of gross equity raised used to calculate the monthly management fee. At March 31, 2018, the effective ARMOUR management fee was 1.04% based on gross equity raised of $2,620,693. At March 31, 2017, the effective ARMOUR management fee was 1.05% based on gross equity raised of $2,469,368. The ACM monthly management fees are not calculated based on the performance of our assets. Accordingly, the payment of our monthly management fees may not decline in the event of a decline in our earnings and may cause us to incur losses. We are also responsible for any costs and expenses that ACM incurred solely on behalf of ARMOUR or JAVELIN other than the various overhead expenses specified in the terms of the management agreements. ACM is further entitled to receive termination fees from ARMOUR and JAVELIN under certain circumstances.

Indemnifications and Litigation

We enter into certain contracts that contain a variety of indemnifications, principally with ACM and underwriters, against third party claims for errors and omissions in connection with their services to us. We have not incurred any costs to defend lawsuits or settle claims related to these indemnification agreements. As a result, the estimated fair value of these agreements, as well as the maximum amount attributable to past events, is not material. Accordingly, we have no liabilities recorded for these agreements at March 31, 2018 and December 31, 2017.

Nine putative class action lawsuits have been filed in connection with the tender offer (the “Tender Offer”) and merger (the “Merger”) for JAVELIN. The Tender Offer and Merger are collectively defined herein as the “Transactions.” All nine suits name ARMOUR, the previous members of JAVELIN’s board of directors prior to the Merger (of which eight are current members of ARMOUR’s board of directors) (the “Individual Defendants”) and JMI Acquisition Corporation (“Acquisition”) as defendants. Certain cases also name ACM and JAVELIN as additional defendants. The lawsuits were brought by purported holders of JAVELIN’s

27

ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

common stock, both individually and on behalf of a putative class of JAVELIN’s stockholders, alleging that the Individual Defendants breached their fiduciary duties owed to the plaintiffs and the putative class of JAVELIN stockholders, including claims that the Individual Defendants failed to properly value JAVELIN; failed to take steps to maximize the value of JAVELIN to its stockholders; ignored or failed to protect against conflicts of interest; failed to disclose material information about the Transactions; took steps to avoid competitive bidding and to give ARMOUR an unfair advantage by failing to adequately solicit other potential acquirors or alternative transactions; and erected unreasonable barriers to other third-party bidders. The suits also allege that ARMOUR, JAVELIN, ACM and Acquisition aided and abetted the alleged breaches of fiduciary duties by the Individual Defendants. The lawsuits seek equitable relief, including, among other relief, to enjoin consummation of the Transactions, or rescind or unwind the Transactions if already consummated, and award costs and disbursements, including reasonable attorneys’ fees and expenses. The sole Florida lawsuit was never served on the defendants, and that case was voluntarily dismissed and closed on January 20, 2017. On April 25, 2016, the Maryland court issued an order consolidating the eight Maryland cases into one action, captioned In re JAVELIN Mortgage Investment Corp. Shareholder Litigation (Case No. 24-C-16-001542), and designated counsel for one of the Maryland cases as interim lead co-counsel. On May 26, 2016, interim lead counsel filed the Consolidated Amended Class Action Complaint for Breach of Fiduciary Duty asserting consolidated claims of breach of fiduciary duty, aiding and abetting the breaches of fiduciary duty, and waste. On June 27, 2016, defendants filed a Motion to Dismiss the Consolidated Amended Class Action Complaint for failing to state a claim upon which relief can be granted. A hearing was held on the Motion to Dismiss on March 3, 2017, and the Court reserved ruling. To date, the Court has not issued an order on the Motion to Dismiss.

Each of ARMOUR, JAVELIN, ACM and the Individual Defendants intends to defend the claims made in these lawsuits vigorously; however, there can be no assurance that any of ARMOUR, JAVELIN, ACM or the Individual Defendants will prevail in its defense of any of these lawsuits to which it is a party. An unfavorable resolution of any such litigation surrounding the Transactions may result in monetary damages being awarded to the plaintiffs and the putative class of former stockholders of JAVELIN and the cost of defending the litigation, even if resolved favorably, could be substantial. Due to the preliminary nature all of these suits, ARMOUR is not able at this time to estimate their outcome.

Note 12 -Stock Based Compensation

We adopted the 2009 Stock Incentive Plan as amended (the “Plan”) to attract, retain and reward directors and other persons who provide services to us in the course of operations. The Plan authorizes the Board to grant awards including common stock, restricted shares of common stock (“RSUs”), stock options, performance shares, performance units, stock appreciation rights and other equity and cash-based awards (collectively, “Awards”), subject to terms as provided in the Plan. At March 31, 2018, there were 1,875 shares of common stock issuable under the Plan, of which 1,137 remain available for future issuance.

Transactions related to awards for the three months ended March 31, 2018 are summarized below:

	March 31, 2018
	Number of Awards		Weighted Average Grant Date Fair Value per Award
Unvested RSU Awards Outstanding beginning of period	472		$	24.82
Vested	(28	)	$	22.53
Unvested RSU Awards Outstanding end of period	444		$	23.55

At March 31, 2018, there was approximately $10,457 of unvested stock based compensation related to the Awards (based on a stock price of $23.55 per share), that we expect to recognize as an expense over the remaining average service period of 3.4 years. Our policy is to account for forfeitures as they occur. We also pay each of our non-executive Board members quarterly fees of $33, which is payable in cash, common stock, or a combination of common stock and cash at the option of the director.

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ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

Note 13 -Stockholders' Equity

Preferred Stock

At March 31, 2018 and December 31, 2017, we were authorized to issue up to 50,000 shares of preferred stock, par value $0.001 per share, with such designations, voting and other rights and preferences as may be determined from time to time by our Board of Directors (“Board”) or a committee thereof. We have designated 9,610 shares as 8.250% Series A Preferred Stock and 7,650 shares as 7.875% Series B Preferred Stock. At March 31, 2018, a total of 32,740 shares of our authorized preferred stock remain available for designation as future series.

Series A Cumulative Preferred Shares (“Series A Preferred Stock”)

At March 31, 2018 and December 31, 2017, we had 2,181 shares of Series A Preferred Stock issued and outstanding with a par value of $0.001 per share and a liquidation preference of $25.00 per share, or $54,514 in the aggregate. Shares designated as Series A Preferred Stock but unissued totaled 7,429 at March 31, 2018. At March 31, 2018 and December 31, 2017, there were no accrued or unpaid dividends on the Series A Preferred Stock. The Series A Preferred Stock is entitled to a dividend at a rate of 8.250% per year based on the $25.00 per share liquidation preference before the common stock is entitled to receive any dividends. Commencing on June 7, 2017, the Series A Preferred Stock is redeemable at $25.00 per share plus accrued and unpaid dividends exclusively at our option (subject to our right under limited circumstances to redeem the Series A Preferred Stock earlier in order to preserve our qualification as a REIT). The Series A Preferred Stock is senior to our common stock and therefore in the event of liquidation, dissolution or winding up, the Series A Preferred Stock will receive a liquidation preference of $25.00 per share plus accumulated and unpaid dividends before distributions are paid to holders of our common stock, with no right or claim to any of our remaining assets thereafter. The Series A Preferred Stock generally does not have voting rights, except if we fail to pay dividends on the Series A Preferred Stock for eighteen months, whether or not consecutive. Under such circumstances, the Series A Preferred Stock will be entitled to vote to elect two additional directors to the Board, until all unpaid dividends have been paid or declared and set aside for payment. The Series A Preferred Stock has no stated maturity, is not subject to any sinking fund or mandatory redemption and will remain outstanding indefinitely unless repurchased or redeemed by us or converted into our common stock in connection with a change of control by the holders of Series A Preferred Stock.

Series B Cumulative Preferred Shares (“Series B Preferred Stock”)

At March 31, 2018 and December 31, 2017, we had 6,369 and 6,262 shares of Series B Preferred Stock, respectively, issued and outstanding with a par value of $0.001 per share and a liquidation preference of $25.00 per share, or $159,232 and $156,560, respectively, in the aggregate at March 31, 2018 and December 31, 2017. Shares designated as Series B Preferred Stock but unissued totaled 1,281 at March 31, 2018. At March 31, 2018 and December 31, 2017, there were no accrued or unpaid dividends on the Series B Preferred Stock. The Series B Preferred Stock is entitled to a dividend at a rate of 7.875% per year based on the $25.00 per share liquidation preference before the common stock is entitled to receive any dividends. The Series B Preferred Stock is redeemable at $25.00 per share plus accrued and unpaid dividends exclusively at our option commencing on February 12, 2018 (subject to our right under limited circumstances to redeem the Series A Preferred Stock earlier in order to preserve our qualification as a REIT). The Series B Preferred Stock is senior to our common stock and rank on parity with the Series A Preferred Stock. In the event of liquidation, dissolution or winding up, the Series B Preferred Stock will receive a liquidation preference of $25.00 per share plus accumulated and unpaid dividends before distributions are paid to holders of our common stock, with no right or claim to any of our remaining assets thereafter. The Series B Preferred Stock generally does not have voting rights, except if we fail to pay dividends on the Series B Preferred Stock for eighteen months, whether or not consecutive. Under such circumstances, the Series B Preferred Stock will be entitled to vote to elect two additional directors to the Board, until all unpaid dividends have been paid or declared and set aside for payment. The Series B Preferred Stock has no stated maturity, is not subject to any sinking fund or mandatory redemption and will remain outstanding indefinitely unless repurchased or redeemed by us or converted into our common stock in connection with a change of control by the holders of Series B Preferred Stock.

On August 30, 2017, the Company entered into an ATM Equity Offering Sales Agreement (the “Preferred B ATM Sales Agreement”) relating to an "at-the-market" offering program for our Series B Preferred Stock. In accordance with the terms of

29

ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

the Preferred B ATM Sales Agreement, we may offer and sell over a period of time and from time to time, up to 2,000 shares of our Series B Preferred Stock. For the three months ended March 31, 2018, we sold 107 shares under this agreement. Proceeds from the sale of the 107 shares were $2,632, net of issuance costs of approximately $42.

Common Stock

At March 31, 2018 and December 31, 2017, we were authorized to issue up to 125,000 shares of common stock, par value $0.001 per share, with such designations, voting and other rights and preferences as may be determined from time to time by our Board. We had 41,902 shares of common stock issued and outstanding at March 31, 2018 and 41,877 shares of common stock issued and outstanding at December 31, 2017.

On May 26, 2017, the Company entered into an ATM Equity Offering Sales Agreement (the “Common stock ATM Sales Agreement”) relating to the shares of our common stock. In accordance with the terms of the Common stock ATM Sales Agreement, we may offer and sell over a period of time and from time to time, up to 5,000 shares of our common stock par value $0.001 per share. The Common stock ATM Sales Agreement relates to a proposed "at-the-market" offering program. On October 2, 2017, the Sales Agreement was amended. As of March 31, 2018, we have not sold any shares under this agreement.

Common Stock Repurchased

At March 31, 2018 and December 31, 2017, there were 1,874 authorized shares remaining under our common stock repurchase program (the “Repurchase Program”). During the three months ended March 31, 2018, we did not repurchase any common shares under the Repurchase Program. Under the Repurchase Program, shares may be purchased in the open market, including block trades, through privately negotiated transactions, or pursuant to a trading plan separately adopted in the future. The timing, manner, price and amount of any repurchases will be at our discretion, subject to the requirements of the Securities Exchange Act of 1934, as amended, and related rules. We are not required to repurchase any shares under the Repurchase Program and it may be modified, suspended or terminated at any time for any reason. We do not intend to purchase shares from our Board or other affiliates. Under Maryland law, such repurchased shares are treated as authorized but unissued.

Dividends

The following table presents our common stock dividend transactions for the three months ended March 31, 2018.

Record Date	Payment Date	Rate per common share		Aggregate amount paid to holders of record
January 16, 2018	January 29, 2018	$	0.19	$	8,046
February 15, 2018	February 27, 2018	$	0.19	8,046
March 15, 2018	March 28, 2018	$	0.19	8,046
Total dividends paid				$	24,138

The following table presents our Series A Preferred Stock dividend transactions for the three months ended March 31, 2018.

Record Date	Payment Date	Rate per Series A Preferred Share		Aggregate amount paid to holders of record
January 15, 2018	January 29, 2018	$	0.17	$	374.8
February 15, 2018	February 27, 2018	$	0.17	374.8
March 15, 2018	March 27, 2018	$	0.17	374.8
Total dividends paid				$	1,124

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ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

The following table presents our Series B Preferred Stock dividend transactions for the three months ended March 31, 2018.

Record Date	Payment Date	Rate per Series B Preferred Share		Aggregate amount paid to holders of record
January 15, 2018	January 29, 2018	$	0.16	$	1,039
February 15, 2018	February 27, 2018	$	0.16	1,045
March 15, 2018	March 27, 2018	$	0.16	1,045
Total dividends paid				$	3,129

Equity Capital Raising Activities

The following table presents our equity transactions for the three months ended March 31, 2018.

Transaction Type	Completion Date	Number of Shares	Per Share price (1)		Net Proceeds
Series B Preferred equity distribution agreement	January 2, 2018-January 26, 2018	107	$	24.62	$	2,632

(1) Weighted average price.

Note 14 -Net Income per Common Share

The following table presents a reconciliation of net income and the shares used in calculating weighted average basic and diluted earnings per common share for the three months ended March 31, 2018, and March 31, 2017.

	For the Three Months Ended March 31,
	2018			2017
Net Income	$	44,747		$	52,718
Less: Preferred dividends	(4,253		)	(3,905		)
Net Income available to common stockholders	$	40,494		$	48,813
Weighted average common shares outstanding – basic	41,887			36,724
Add: Effect of dilutive non-vested awards, assumed vested	444			24
Weighted average common shares outstanding – diluted	42,331			36,748

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ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

Note 15 -Income Taxes

The following table reconciles our GAAP net income to estimated REIT taxable income for the three months ended March 31, 2018 and March 31, 2017. 

	For the Three Months Ended March 31,
	2018			2017
GAAP net income	$	44,747		$	52,718
Book to tax differences:
TRS income	(168		)	—
Premium amortization expense	(435		)	(90		)
Credit Risk and Non-Agency Securities	(1,196		)	(24,942		)
Interest-Only Securities	(407		)	3,141
U.S. Treasury Securities	(2,576		)	—
Changes in interest rate contracts	(64,276		)	(22,153		)
Other than temporary loss on Agency Securities	12,090			—
Losses on Security Sales	32,603			11,154
Amortization of deferred hedging costs	(14,584		)	(14,904		)
Other	2			4
Estimated REIT taxable income	$	5,800		$	4,928

Interest rate contracts are treated as hedging transactions for tax purposes. Unrealized gains and losses on open interest rate contracts are not included in the determination of REIT taxable income. Realized gains and losses on interest rate contracts terminated before their maturity are deferred and amortized over the remainder of the original term of the contract for REIT taxable income.

Net capital losses realized	Amount		Available to offset capital gains though
2013	(579,322	)	2018
2014	(341,850	)	2019
2015	(5,182	)	2020
2016	(31,204	)	2021
2017	(7,375	)	2022

The Company's subsidiary, ARMOUR TRS, Inc. has made an election as a taxable REIT subsidiary (“TRS”). As such, the TRS is taxable as a domestic C corporation and subject to federal, state and local income taxes based upon its taxable income. The Company's TRS is subject to federal, state and local taxes. During the three months ended March 31, 2018, we recorded $25 of income tax expense attributable to our TRS.

The aggregate tax basis of our assets and liabilities was greaterthan our total Stockholders’ Equity at March 31, 2018 by approximately $95,148, or approximately $2.27 per common share (based on the 41,902 common shares then outstanding).

We are required and intend to timely distribute substantially all of our REIT taxable income in order to maintain our REIT status under the Code. Total dividend payments to stockholders were $28,391 for the three months ended March 31, 2018 and $24,856 for the three months ended March 31, 2017, respectively. Our estimated REIT taxable income available for distribution as dividends was $5,800 for the three months ended March 31, 2018 and $4,928 for the three months ended March 31, 2017, respectively. Our REIT taxable income and dividend requirements to maintain our REIT status are determined

32

ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

on an annual basis. Dividends paid in excess of current tax earnings and profits for the year will generally not be taxable to common stockholders.

Our management is responsible for determining whether tax positions taken by us are more likely than not to be sustained on their merits. We have no material unrecognized tax benefits or material uncertain tax positions.

Note 16 -Related Party Transactions

ACM

The Company is managed by ACM, pursuant to management agreements with ARMOUR and JAVELIN. All of our executive officers are also employees of ACM. ACM manages our day-to-day operations, subject to the direction and oversight of the Board. The ARMOUR management agreement runs through June 18, 2024 and is thereafter automatically renewed for an additional five-year terms unless terminated under certain circumstances. The JAVELIN Management Agreement renewed on October 5, 2017, for a one-year period, with the base management fee thereunder reduced to one dollar for the entirety of the renewal term. It will be automatically renewed annually for successive one- year terms unless terminated under certain circumstances. Either party must provide 180 days prior written notice of any such termination.

Under the terms of the management agreements, ACM is responsible for costs incident to the performance of its duties, such as compensation of its employees and various overhead expenses. ACM is responsible for the following primary roles:

• Advising us with respect to, arranging for and managing the acquisition, financing, management and disposition of, elements of our investment portfolio;

• Evaluating the duration risk and prepayment risk within the investment portfolio and arranging borrowing and hedging strategies;

• Coordinating capital raising activities;

• Advising us on the formulation and implementation of operating strategies and policies, arranging for the acquisition of assets, monitoring the performance of those assets  and providing administrative and managerial services in connection with our day-to-day operations; and

• Providing executive and administrative personnel, office space and other appropriate services required in rendering management services to us.

In accordance with management agreements, we incurred $6,801 in management fees for the three months ended March 31, 2018. For the three months ended March 31, 2017, we incurred $6,521 in management fees. In accordance with the JAVELIN management agreement, we paid management fees of $565 for the three months ended March 31, 2017.

We are required to take actions as may be reasonably required to permit and enable ACM to carry out its duties and obligations. We are also responsible for any costs and expenses that ACM incurred solely on our behalf other than the various overhead expenses specified in the terms of the management agreements. For the three months ended March 31, 2018, we reimbursed ACM $47 for other expenses incurred on our behalf. For the three months ended March 31, 2017, we reimbursed ACM $355 for other expenses incurred on our behalf. In consideration of our 2012 results, in 2013, we also elected to make a restricted stock award to our executive officers and other ACM employees through ACM. The award fully vested in December 2017 and resulted in our recognizing stock based compensation expense of $83 for the three months ended March 31, 2017. In November 2017, we elected to make restricted stock unit awards to ACM and to the Board. These awards began vesting in February 2018, causing us to recognize stock based compensation expense of $108 for the three months ended March 31, 2018.

BUCKLER

In March 2017, we contributed $352 for a 10% ownership interest in BUCKLER Securities, LLC, (“BUCKLER”) a Delaware limited liability company and a FINRA-regulated broker-dealer, controlled by ACM and certain executive officers of ARMOUR. The investment was included in prepaid and other assets in our consolidated balance sheet and is accounted for using the

33

ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

equity method as BUCKLER maintains specific ownership accounts. The value of the investment was $39 at March 31, 2018 reflecting our initial investment less our share of BUCKLER’s startup costs, in accordance with the terms of the operating agreement of BUCKLER that our independent directors negotiated. The intended purpose of the investment in BUCKLER is to facilitate access to repurchase financing for the Company, on potentially more attractive terms (based upon the combination of rate, term, size, haircut, stability and reliability generally available in the market for comparable securities transactions) than are available through third party brokers and dealers in the repurchase financing market, or from other suitable counterparties.

Our operating agreement with BUCKLER contains certain provisions to benefit and protect the Company, including (1) sharing in any (a) defined profits realized by BUCKLER from the anticipated financing spreads resulting from repurchase financing facilitated by BUCKLER, and (b) distributions from BUCKLER to its members of net cash receipts, and (2) the realization of anticipated savings from reduced clearing, brokerage, trading and administrative fees. In addition, the independent directors of the Company, must approve in their sole discretion, any third-party business engaged by BUCKLER and may cause BUCKLER to wind up and dissolve and promptly return certain subordinated loans we provide to BUCKLER as regulatory capital (as described more below) if the independent directors reasonably determine that BUCKLER’s ability to provide attractive securities transactions for the Company is materially adversely affected. BUCKLER began trading operations on October 25, 2017.

The Company has entered three subordinated loan agreements with BUCKLER, totaling $105.0 million. The loans have a stated interest rate of zero, plus additional interest payable to us in an amount equal to the amount of interest earned by BUCKLER on the investment of the loan proceeds, generally in government securities funds. In the first quarter of 2018, BUCKLER has paid the Company $280 of interest on these loans, and accrued another $344, which it received in April 2018. The loans are repayable as follows:

• $25.0 million due April 25, 2020. BUCKLER may at its option after obtaining the approval of the Financial Industry Regulatory Authority repay all or a portion of the principal amount of the loan any time after April 21, 2018.

• $15.0 million due August 31, 2020. BUCKLER may at its option after obtaining the approval of the Financial Industry Regulatory Authority repay all or a portion of the principal amount of the loan any time after August 29, 2018.

• $65.0 million due August 31, 2019. BUCKLER may at its option after obtaining the approval of the Financial Industry Regulatory Authority repay all or a portion of the principal amount of the loan any time after August 29, 2018.

The Company had outstanding borrowings under repurchase agreements with BUCKLER totaling $3,697,089 and $2,903,769 at March 31, 2018 and December 31, 2017, respectively. See also Note 9, “Repurchase Agreements” for transactions with BUCKLER.

Note 17 -Interest Rate Risk

Our primary market risk is interest rate risk. Interest rates are highly sensitive to many factors, including governmental monetary and tax policies, domestic and international economic and political considerations and other factors beyond our control. Changes in the general level of interest rates can affect net interest income, which is the difference between the interest income earned and the interest expense incurred in connection with the liabilities, by affecting the spread between the interest-earning assets and interest-bearing liabilities. Changes in the level of interest rates also can affect the value of MBS and our ability to realize gains from the sale of these assets. A decline in the value of the MBS pledged as collateral for borrowings under repurchase agreements could result in the counterparties demanding additional collateral pledges or liquidation of some of the existing collateral to reduce borrowing levels.

Note 18 -Subsequent Events

A cash dividend of $0.17 per outstanding share of Series A Preferred Stock, or $375 in the aggregate, and $0.16 per outstanding share of Series B Preferred Stock, or $1,045 in the aggregate, is payable on April 27, 2018 to holders of record on April 15, 2018. We have also declared cash dividends of $0.17 and $0.16 per outstanding share of Series A Preferred Stock and Series B Preferred Stock, respectively, payable May 29, 2018 to holders of record on May 15, 2018 and payable June 27, 2018 to holders of record on June 15, 2018.

34

ARMOUR Residential REIT, Inc.

FINANCIAL STATEMENT NOTES (UNAUDITED)

(in thousands, except per share)

A cash dividend of $0.19 per outstanding common share, or $8,045 in the aggregate, is payable on April 27, 2018 to holders of record on April 13, 2018. We have also declared a cash dividend of $0.19 per outstanding common share payable May 30, 2018 to holders of record on May 15, 2018.

35

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

ARMOUR Residential REIT, Inc.

The following discussion of our financial condition and results of operations should be read in conjunction with our consolidated financial statements and related notes included elsewhere in this report.

References to “we,” “us,” “our,” or the “Company” are to ARMOUR Residential REIT, Inc. (“ARMOUR”) and its subsidiaries. References to “ACM” are to ARMOUR Capital Management LP, a Delaware limited partnership. Refer to the Glossary of Terms for definitions of capitalized terms and abbreviations used in this report.

U.S. dollar amounts are presented in thousands, except per share data or as otherwise noted.

Overview

ARMOUR is a Maryland corporation formed to invest in and manage a leveraged portfolio of MBS and mortgage loans. We invest in residential mortgage backed securities issued or guaranteed by a U.S. GSE, such as Fannie Mae, Freddie Mac, or a government agency such as Ginnie Mae (collectively, Agency Securities). Interest-Only Securities are the interest portion of Agency Securities, which is separated and sold individually from the principal portion of the same payment. Other securities backed by residential mortgages in which we invest, for which the payment of principal and interest is not guaranteed by a GSE or government agency (collectively, Credit Risk and Non-Agency Securities and together with Agency Securities and Interest-Only Securities, MBS), may benefit from credit enhancement derived from structural elements such as subordination, over collateralization or insurance. The Company is managed by ACM, an investment advisor registered with the SEC. See Note 11 and Note 16 to the consolidated financial statements for further details.

We seek to create shareholder value through thoughtful investment and risk management that produces current yield and superior risk adjusted returns over the long term. Our focus on residential real estate finance supports home ownership for a broad and diverse spectrum of Americans by bringing private capital into the mortgage markets.

We earn returns on the spread between the yield on our assets and our costs, including the interest cost of the funds we borrow, after giving effect to our hedges. We identify and acquire MBS, finance our acquisitions with borrowings under a series of short-term repurchase agreements at the most competitive interest rates available to us and then cost-effectively hedge our interest rate and other risks based on our entire portfolio of assets, liabilities and derivatives and our management’s view of the market. Successful implementation of this approach requires us to address interest rate risk, maintain adequate liquidity and effectively hedge interest rate risks. We believe that the residential mortgage market will undergo significant changes in the coming years as the role of GSEs, such as Fannie Mae and Freddie Mac, is diminished, which we expect will create attractive investment opportunities for us. We execute our business plan in a manner consistent with our intention of qualifying as a REIT under the Code and avoiding regulation as an investment company under the 1940 Act.

We have elected to be taxed as a REIT under the Code. We will generally not be subject to federal income tax to the extent that we distribute our taxable income to our stockholders and as long as we satisfy the ongoing REIT requirements under the Code including meeting certain asset, income and stock ownership tests.

Factors that Affect our Results of Operations and Financial Condition

Our results of operations and financial condition are affected by various factors, many of which are beyond our control, including, among other things, our net interest income, the market value of our assets and the supply of and demand for such assets. Recent events, such as those discussed below, can affect our business in ways that are difficult to predict and may produce results outside of typical operating variances. Our net interest income varies primarily as a result of changes in interest rates, borrowing costs and prepayment speeds, the behavior of which involves various risks and uncertainties. We look to invest across the spectrum of mortgage investments, from Agency Securities, for which the principal and interest payments are guaranteed by a GSE, to Credit Risk and Non-Agency Securities, non-prime mortgage loans and unrated equity tranches of CMBS. As such, we expect our investments to be subject to risks arising from delinquencies and foreclosures, thereby exposing our investment portfolio to potential losses. We are exposed to changing credit spreads, which could result in declines in the fair value of our investments. We believe ACM’s in-depth investment expertise across multiple sectors of the mortgage market, prudent asset selection and our hedging strategy enable us to minimize our credit losses, our market value losses and financing costs. Prepayment rates, as reflected by the rate of principal pay downs and interest rates vary according to the type of

36

ARMOUR Residential REIT, Inc.

Management’s Discussion and Analysis (continued)

investment, conditions in financial markets, government actions, competition and other factors, none of which can be predicted with any certainty. In general, as prepayment rates on our assets that are purchased at a premium increase, related purchase premium amortization increases, thereby reducing the net yield on such assets. Because changes in interest rates may significantly affect our activities, our operating results depend, in large part, upon our ability to manage interest rate risks and prepayment risks effectively while maintaining our status as a REIT.

For any period during which changes in the interest rates earned on our assets do not coincide with interest rate changes on our borrowings, such assets will tend to reprice more slowly than the corresponding liabilities. Consequently, changes in interest rates, particularly short-term interest rates, may significantly influence our net interest income. With the maturities of our assets generally of a longer term than those of our liabilities, interest rate increases will tend to decrease our net interest income and the market value of our assets (and therefore our book value). Such rate increases could possibly result in operating losses or adversely affect our ability to make distributions to our stockholders.

Prepayments on MBS and the underlying mortgage loans may be influenced by changes in market interest rates and a variety of economic and geographic factors, policy decisions by regulators, as well as other factors beyond our control. To the extent we hold MBS acquired at a premium or discount to par, or face value, changes in prepayment rates may impact our anticipated yield. In periods of declining interest rates, prepayments on our MBS will likely increase. If we are unable to reinvest the proceeds of such prepayments at comparable yields, our net interest income may decline. The climate of government intervention in the mortgage markets significantly increases the risk associated with prepayments.

While we use strategies to economically hedge some of our interest rate risk, we do not hedge all of our exposure to changes in interest rates and prepayment rates, as there are practical limitations on our ability to insulate our securities portfolio from all potential negative consequences associated with changes in short-term interest rates in a manner that will allow us to seek attractive net spreads on our securities portfolio. Also, since we have not elected to use cash flow hedge accounting, earnings reported in accordance with GAAP will fluctuate even in situations where our derivatives are operating as intended. As a result of this mark-to-market accounting treatment, our results of operations are likely to fluctuate far more than if we were to designate our derivative activities as cash flow hedges. Comparisons with companies that use cash flow hedge accounting for all or part of their derivative activities may not be meaningful. For these and other reasons more fully described under the section captioned “Derivative Instruments” below, no assurance can be given that our derivatives will have the desired beneficial impact on our results of operations or financial condition.

In addition to the use of derivatives to hedge interest rate risk, a variety of other factors relating to our business may also impact our financial condition and operating performance; these factors include

• our degree of leverage;

• our access to funding and borrowing capacity;

• the REIT requirements under the Code; and

• the requirements to qualify for an exclusion under the 1940 Act and other regulatory and accounting policies related to our business.

Our Manager

See Note 11 and Note 16 to the consolidated financial statements.

Market and Interest Rate Trends and the Effect on our securities portfolio

Developments at Fannie Mae and Freddie Mac

The payments we receive on the Agency Securities in which we invest depend upon a steady stream of payments by borrowers on the underlying mortgages and the fulfillment of guarantees by GSEs. There can be no assurance that the U.S. Government's intervention in Fannie Mae and Freddie Mac will continue to be adequate or assured for the longer-term viability of these GSEs. These uncertainties may lead to concerns about the availability of and trading market for Agency Securities in

37

ARMOUR Residential REIT, Inc.

Management’s Discussion and Analysis (continued)

the long term. Accordingly, if the GSEs defaulted on their guaranteed obligations, suffered losses or ceased to exist, the value of our Agency Securities and our business, operations and financial condition could be materially and adversely affected.

The passage of any new federal legislation affecting Fannie Mae and Freddie Mac may create market uncertainty and reduce the actual or perceived credit quality of securities issued or guaranteed by them. If Fannie Mae and Freddie Mac were reformed or wound down, it is unclear what effect, if any, this would have on the value of the existing Fannie Mae and Freddie Mac Agency Securities. The foregoing could materially adversely affect the pricing, supply, liquidity and value of the Agency Securities in which we invest and otherwise materially adversely affect our business, operations and financial condition.

On June 3, 2019, Fannie Mae and Freddie Mac are scheduled to start issuing a new common security, the Uniform MBS, in place of their current offerings of MBS. The new Uniform MBS will be issued using a new Common Securitization Platform ("CSP"). The Uniform MBS will more closely resemble current Fannie Mae MBS than current Freddie Mac MBS and will become the basis for the TBA MBS market place. Existing Freddie Mac MBS will be eligible for exchange into new Uniform MBS. We are unable to predict what impact the introduction of the new Uniform MBS and CSP will have on our existing MBS or the MBS market in the future.

Short-term Interest Rates and Funding Costs

On January 31, 2018, the Fed raised its target range for the Federal Funds Rate to between 1.25% and 1.50%. At its March 2018 meeting, the Fed again raised its target range to between 1.50% and 1.75%. Changes in Fed policy affect our financial results, since our cost of funds is largely dependent on short-term rates. An increase in our cost of funds without a corresponding increase in interest income earned on our MBS would cause our net income to decline.

Historically, 30-day LIBOR has closely tracked movements in the Federal Funds Rate and the Effective Federal Funds Rate. The Effective Federal Funds Rate can differ from the Federal Funds Rate in that the Effective Federal Funds Rate represents the volume weighted average of interest rates at which depository institutions lend balances at the Fed to other depository institutions overnight (actual transactions, rather than target rate).

Our borrowings in the repurchase market have also historically closely tracked the Federal Funds Rate and LIBOR. Traditionally, a lower Federal Funds Rate has indicated a time of increased net interest margin and higher asset values. The difference between 30-day LIBOR and the Effective Federal Funds Rate can be quite volatile, with the spread alternately returning to more normal levels and then widening out again. Volatility in these rates and divergence from the historical relationship among these rates could negatively impact our ability to manage our securities portfolio. If rates were to increase as a result, our net interest margin and the value of our securities portfolio might suffer as a result.

38

ARMOUR Residential REIT, Inc.

Management’s Discussion and Analysis (continued)

The following graph shows 30-day LIBOR as compared to the Effective Federal Funds Rate on a monthly basis from March 31, 2016 to March 31, 2018.

Long-term Interest Rates and Mortgage Spreads

Our Agency Securities are valued at an interest rate spread versus long-term interest rates (mortgage spread). This mortgage spread varies over time and can be above or below long-term averages, depending upon market participants' current desire to own Agency Securities over other investment alternatives. When the mortgage spread gets smaller (or negative) versus long-term interest rates, our book value will be positively affected. When this spread gets larger (or positive), our book value will be negatively affected.

Mortgage spreads can vary due to movements in Agency Securities valuations, movements in long-term interest rates or a combination of both. Since 2015, the interest rate swap spread has been negative to U.S. Treasury interest rates for certain longer tenors, an inversion of longstanding market norms. We mainly use interest rate swap contracts (including swaptions) to economically hedge against changes in the valuation of our MBS. We do not use such hedging contracts for speculative purposes. As of March 31, 2018 and December 31, 2017, we have not entered into any contract or purchased any asset specifically designed to offset the impact of mortgage spreads on our book value.

39

ARMOUR Residential REIT, Inc.

Management’s Discussion and Analysis (continued)

Results of Operations

Net Income Summary

The following is a summary of our consolidated results of operations for the periods presented:

Interest income for the three months ended March 31, 2018, increased due to a larger average securities portfolio and an increase in asset yields compared to the three months ended March 31, 2017. This increase in our securities portfolio, was not enough to offset the increase in interest expense on our repurchase agreements, which led to the decrease in net interest income for the three months ended March 31, 2018 compared to the three months ended March 31, 2017.

40

ARMOUR Residential REIT, Inc.

Management’s Discussion and Analysis (continued)

Net Interest Income

Net interest income is a function of both our securities portfolio size and net interest rate spread.

2018 vs. 2017

• Our average securities portfolio (including TBA Agency Securities) increased by 12.7% from $9,148,699 for the three months ended March 31, 2017 to $10,309,102 for the three months ended March 31, 2018.

• Our asset yields increased by 0.12% and our interest expense on our repurchase agreements increased by 0.7% for the three months ended March 31, 2018, compared to the three months ended March 31, 2017. The asset yield increase was mainly due to the change in the composition of our securities portfolio and slower prepayment speeds. The change in interest expense on our repurchase agreements was due to a larger average securities portfolio and an increase in short-term rates by the Fed.

• Our net interest rate spread decreased by 0.09% basis points from 1.61% for the three months ended March 31, 2017 to 1.52% for the three months ended March 31, 2018.

At March 31, 2018 and December 31, 2017, our Agency Securities in our securities portfolio were carried at a net premium to par value with a weighted average amortized cost of 104.1% and 104.4%, respectively, due to the average interest rates on these securities being higher than prevailing market rates.

41

ARMOUR Residential REIT, Inc.

Management’s Discussion and Analysis (continued)

The following table presents the components of the yield earned on our securities portfolio (including TBA Agency Securities) for the quarterly periods ended on the dates shown below:

42

ARMOUR Residential REIT, Inc.

Management’s Discussion and Analysis (continued)

The yield on our assets is most significantly affected by the rate of repayments on our Agency Securities. The following graph shows the annualized CPR on a monthly basis for the quarterly periods ended on the dates shown below.

43

ARMOUR Residential REIT, Inc.

Management’s Discussion and Analysis (continued)

Other Income

44

ARMOUR Residential REIT, Inc.

Management’s Discussion and Analysis (continued)

2018 vs. 2017

• Losses on Agency Securities resulted from the sales of Agency Securities during the three months ended March 31, 2018 of $1,137,792, including $68,796 of forward settling sales, and sales of $1,387,366 during the three months ended March 31, 2017. At March 31, 2018 and March 31, 2017, we also considered whether we intended to sell Agency Securities and whether it was more likely than not that we could meet our liquidity requirements and contractual obligations without selling Agency Securities. During 2017, we identified certain low yielding Agency Securities that we plan to replace with securities having more attractive returns as market conditions permit. For those securities that were previously identified, we recognized additional losses totaling $12,090 for the three months ended March 31, 2018 in our consolidated financial statements of operations. The aggregate fair value of the remaining identified low yielding Agency Securities is $681,827 at March 31, 2018. We determined that there was no other than temporary impairment of our remaining Agency Securities as of March 31, 2018

• No other than temporary impairment was recognized for the three months ended March 31, 2017, because we determined that we 1) did not have the intent to sell the Agency Securities in an unrealized loss position, 2) did not believe it more likely than not that we were required to sell the securities before recovery (for example, because of liquidity requirements or contractual obligations), and/or 3) determined that a credit loss did not exist.

• Gain on Credit Risk and Non-Agency Securities resulted mainly from the change in fair value of the securities.

• The loss on Interest-Only Securities resulted from a decrease in the fair value of these securities.

• Gains (losses) on Derivatives resulted from a combination of the following:

◦ Changes in interest rates and TBA prices.

◦ The increase in our total interest rate swap contracts aggregate notional balance from $4,225,000 at March 31, 2017 to $6,800,000 at March 31, 2018.

◦ The increase in our total TBA Agency Securities aggregate notional balance from $1,250,000 at March 31, 2017 to $4,300,000 at March 31, 2018.

45

ARMOUR Residential REIT, Inc.

Management’s Discussion and Analysis (continued)

Expenses

The Company is managed by ACM, pursuant to management agreements with ARMOUR and JAVELIN. The ARMOUR management fees are determined based on gross equity raised. Therefore, management fees increase when we raise capital and decline when we repurchase previously issued stock and liquidate distributions as approved and so designated by a majority of the Board. However, because the ARMOUR management fee rate decreased to 0.75% per annum for gross equity raised in excess of $1.0 billion pursuant to the ARMOUR management agreement, the effective average management fee rate declines as equity is raised. Gross equity raised was $2,620,693 at March 31, 2018 and $2,469,368 at March 31, 2017, respectively.

46

ARMOUR Residential REIT, Inc.

Management’s Discussion and Analysis (continued)

Professional fees include securities clearing, legal, audit and consulting costs and are generally driven by the size and complexity of our securities portfolio, the volume of transactions we execute and the extent of research and due diligence activities we undertake on potential transactions.

Insurance includes premiums for both general business and directors and officers liability coverage. The fluctuation from year to year is due to changes in premiums.

Compensation includes both non-executive director compensation as well as the restricted stock units awarded to our executive officers and other ACM employees through ACM. The fluctuation from year to year is due to a combination of the change in our stock price and the number of awards vesting to our executive officers and other ACM employees.

Other expenses include fees for market and pricing data, analytics and risk management systems and portfolio related data processing costs as well as stock exchange listing fees and similar stockholder related expenses.

Taxable Income

As a REIT that regularly distributes all of its taxable income, we are generally not required to pay federal income tax. See Note 15 to the consolidated financial statements.

Other Comprehensive Income (Loss)

Comprehensive income (loss) includes all changes in equity during a period, except those resulting from investments by owners and distributions to owners. For the three months ended March 31, 2018 and March 31, 2017, other comprehensive (loss) income totaled $(100,717) and $17,268, respectively, reflecting net unrealized gain (loss) on available for sale Agency Securities net of amounts reclassified upon sale.

Financial Condition

Our securities portfolio consists primarily of Agency Securities backed by fixed rate home loans. From time to time, a portion of our Agency Securities may be backed by hybrid adjustable rate and adjustable rate home loans as well as unsecured notes and bonds issued by GSEs, U.S. Treasury Securities and money market instruments, subject to certain income tests we must satisfy for our qualification as a REIT. Our charter permits us to invest in these asset classes.

47

ARMOUR Residential REIT, Inc.

Management’s Discussion and Analysis (continued)

The charts below present the breakout by percentage of our securities portfolio, at fair value as of the dates indicated.

Agency Securities, Interest-Only Securities and TBA Agency Securities

Security purchase and sale transactions, including purchases and sales for forward settlement, are recorded on the trade date to the extent it is probable that we will take or make timely physical delivery of the related securities. Gains or losses realized from the sale of securities are included in income and are determined using the specific identification method. We typically purchase Agency Securities at premium prices. The premium price paid over par value on those assets is expensed as the underlying mortgages experience repayment or prepayment. The lower the constant prepayment rate, the lower the amount of amortization expense for a particular period. Accordingly, the yield on an asset and earnings are higher. If prepayment rates increase, the amount of amortization expense for a particular period will go up. These increased prepayment rates would act to decrease the yield on an asset and would decrease earnings.

We account for TBA Agency Securities as derivative instruments if it is reasonably possible that we will not take or make physical delivery of the Agency Security upon settlement of the contract. TBA Agency Securities are forward contracts for the purchase (“long position”) or sale (“short position”) of Agency Securities at a predetermined price, face amount, issuer, coupon and stated maturity on an agreed-upon future date. The specific Agency Securities delivered pursuant to the contract upon the settlement date, published each month by the Securities Industry and Financial Markets Association, are not known at the time of the transaction. We estimate the fair value of TBA Agency Securities based on similar methods used to value our Agency Securities. TBA Agency Securities are included in the table below on a gross basis as they can be used to establish and finance portfolio positions in Agency Securities.

48

ARMOUR Residential REIT, Inc.

Management’s Discussion and Analysis (continued)

The tables below summarize certain characteristics of our Agency Securities, Interest-Only Securities and TBA Agency Securities at March 31, 2018 and December 31, 2017.

March 31, 2018

Asset Type	Principal Amount		Fair Value		Weighted Average Coupon		CPR (1)		Weighted Average Month to Reset or Maturity
ARMs & Hybrids	$	59,222	$	61,272	3.08	%	13.68	%	10
Multi-Family MBS	1,455,141		1,464,067		3.19	%	0.00	%	84
10 Year Fixed	59,780		61,663		4.01	%	7.99	%	90
15 Year Fixed	1,224,013		1,263,031		3.80	%	8.98	%	159
20 Year Fixed	25,864		27,139		4.42	%	14.01	%	199
25 Year Fixed	61,895		63,137		3.76	%	7.36	%	283
30 Year Fixed	3,229,571		3,305,123		3.90	%	6.83	%	345
Total or Weighted Average	$	6,115,486	$	6,245,432	3.71	%	5.75	%	239
TBA Agency Securities 15 Year (2)	2,500,000		2,543,388		3.50	%	0.00	%	180
TBA Agency Securities 30 Year (2)	1,800,000		1,881,334		4.50	%	0.00	%	360
Total or Weighted Average	10,415,486		10,670,154
Interest-Only Securities (3)	125,971		24,933		4.85	%	13.17	%	273
Total or Weighted Average			$	10,695,087

(1) Weighted average for all prepayments during the three months ended March 31, 2018, including prepayments related to Agency Securities purchased during the quarter.

(2) Our TBA Agency Securities are recorded as derivative instruments in our accompanying consolidated financial statements. As of March 31, 2018, our TBA Agency Securities had a net carrying value of $3,659, reported as a derivative asset and $(4,285), reported as a derivative liability on our accompanying consolidated balance sheets. The net carrying value represents the difference between the fair value of the underlying Agency Security in the TBA Agency Security and the cost basis or the forward price to be paid or received for the underlying Agency Security. The weighted average months to maturity represents the maximum maturity acceptable within the delivery standards. Securities actually delivered may have shorter maturities.

(3) Interest-Only Securities principal amount represents the outstanding balance of the underlying Agency Securities from which the Interest-Only Security is derived. We are not entitled to receive any of those principal amounts.

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Management’s Discussion and Analysis (continued)

December 31, 2017

Asset Type	Principal Amount		Fair Value		Weighted Average Coupon		CPR (1)		Weighted Average Month to Reset or Maturity
ARMs & Hybrids	$	63,675	$	66,048	2.87	%	11.40	%	9
Multi-Family MBS	1,764,840		1,811,555		3.15	%	0.00	%	88
10 Year Fixed	94,262		98,018		4.00	%	9.44	%	93
15 Year Fixed	1,315,191		1,379,921		3.80	%	10.87	%	161
20 Year Fixed	27,405		29,211		4.42	%	17.10	%	202
25 Year Fixed	47,875		49,753		3.69	%	5.49	%	281
30 Year Fixed	3,872,423		4,044,460		3.88	%	6.56	%	349
Total or Weighted Average	$	7,185,671	$	7,478,966	3.68	%	5.58	%	244
TBA Agency Securities 15 Year (2)	500,000		509,278		3.00	%	0.00	%	180
TBA Agency Securities 30 Year (2)	1,100,000		1,163,836		4.37	%	0.00	%	360
Total or Weighted Average	$	8,785,671	$	9,152,080
Interest-Only Securities (3)	132,029		25,752		4.84	%	13.28	%	276
Total or Weighted Average			$	9,177,832

(1) Weighted average for all prepayments during the year ended December 31, 2017, including prepayments related to Agency Securities purchased during the quarter.

(2) Our TBA Agency Securities are recorded as derivative instruments in our accompanying consolidated financial statements. As of December 31, 2017, our TBA Agency Securities had a carrying value of $934, reported as derivative assets and a carrying amount of $(2,258), reported as a derivative liability on our accompanying consolidated balance sheets. The net carrying value represents the difference between the fair value of the underlying Agency Security in the TBA Agency Security and the cost basis or the forward price to be paid or received for the underlying Agency Security. The weighted average months to maturity represents the maximum maturity acceptable within the delivery standards. Securities actually delivered may have shorter maturities.

(3) Interest-Only Securities principal amount represents the outstanding balance of the underlying Agency Securities from which the Interest-Only Security is derived. We are not entitled to receive any of those principal amounts.

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Management’s Discussion and Analysis (continued)

The charts below present the percentage of our Agency Securities, Interest-only Securities and TBA Agency Securities by type each at fair value as of the dates indicated.

Recognition of interest income commences on the settlement date of the purchase transaction and continues through the settlement date of the sale transaction. At March 31, 2018, we had investment related receivables of $68,796 with respect to unsettled sales and investment related payables of $227,409 with respect to unsettled purchases. At December 31, 2017 we did not have any investment related receivables or payables with respect to unsettled sales and purchases of our Agency Securities.

Our net interest income is primarily a function of the difference between the yield on our assets and the financing (borrowing and hedging) cost of owning those assets. Since we tend to purchase Agency Securities at a premium to par, the main item that can affect the yield on our Agency Securities after they are purchased is the rate at which the mortgage borrowers repay the loan. While the scheduled repayments, which are the principal portion of the homeowners’ regular monthly payments,

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Management’s Discussion and Analysis (continued)

are fairly predictable, the unscheduled repayments, which are generally refinancing of the mortgage but can also result from repurchases of delinquent, defaulted, or modified loans, are less so. Being able to accurately estimate and manage these repayment rates is a critical portion of the management of our securities portfolio, not only for estimating current yield but also for considering the rate of reinvestment of those proceeds into new securities, the yields which those new securities may add to our securities portfolio and our hedging strategy.

At March 31, 2018 and December 31, 2017, the adjustable and hybrid adjustable rate mortgage loans underlying our Agency Securities have fixed-interest rates for an average period of approximately 10 months and 9 months, respectively, after which time the interest rates reset and become adjustable. After a reset date, interest rates on our adjustable and hybrid adjustable Agency Securities float based on spreads over various indices, typically LIBOR or the one-year constant maturity treasury rate. These interest rates are subject to caps that limit the amount the applicable interest rate can increase during any year, known as an annual cap and through the maturity of the security, known as a lifetime cap.

Credit Risk and Non-Agency Securities

We purchase Credit Risk and Non-Agency Securities at prices which incorporate our expectations for prepayment speeds, defaults, delinquencies and severities. These expectations determine the yields we receive on our assets. If actual prepayment speeds, defaults, delinquencies and severities are different from our expectations, our actual yields could be higher or lower.

The table below summarizes certain characteristics of our Credit Risk and Non-Agency Securities at March 31, 2018.

Asset Type	Principal Amount		Fair Value		Weighted Average Coupon		Weighted Average Month to Maturity
Credit Risk Transfer	$	758,090	$	866,736	6.37	%	110
Legacy Prime Fixed	18,585		16,267		6.03	%	227
Legacy ALTA Fixed	64,175		53,401		5.58	%	234
Legacy Prime Hybrid	10,821		9,874		3.27	%	226
Legacy ALTA Hybrid	4,708		4,476		3.55	%	214
New Issue Prime Fixed	18,716		18,196		3.69	%	314
Total or Weighted Average	$	875,095	$	968,950	6.22	%	124

The table below summarizes certain characteristics of our Credit Risk and Non-Agency Securities at December 31, 2017.    

Asset Type	Principal Amount		Fair Value		Weighted Average Coupon		Weighted Average Month to Maturity
Credit Risk Transfer	$	764,172	$	870,494	6.05	%	112
Legacy Prime Fixed	19,237		16,778		6.03	%	230
Legacy ALTA Fixed	65,920		54,727		5.85	%	237
Legacy Prime Hybrid	11,452		10,469		3.17	%	229
Legacy ALTA Hybrid	4,901		4,660		3.47	%	217
New Issue Prime Fixed	19,025		18,701		3.69	%	317
Total or Weighted Average	$	884,707	$	975,829	5.95	%	127

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Management’s Discussion and Analysis (continued)

Our Credit Risk and Non-Agency Securities are subject to risk of loss with regard to principal and interest payments and at March 31, 2018 and December 31, 2017, have generally either been assigned below investment grade ratings by rating agencies, or have not been rated. We evaluate each investment based on the characteristics of the underlying collateral and securitization structure, rather than relying on the ratings assigned by rating agencies. The table below summarizes the credit ratings of our Credit Risk and Non-Agency Securities.

	Investment Grade		Non-Investment Grade		Non-Rated		Total
March 31, 2018	$	141,378	$	776,661	$	50,911	$	968,950
December 31, 2017	$	21,452	$	931,327	$	23,050	$	975,829

Recognition of interest income commences on the settlement date of the purchase transaction and continues through the settlement date of the sale transaction. We did not have any investment related receivables or payables on Credit Risk and Non-Agency Securities at March 31, 2018 or December 31, 2017.

The charts below present the percentage of our Credit Risk and Non-Agency Securities, at fair value, by type at March 31, 2018 and at December 31, 2017.

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Management’s Discussion and Analysis (continued)

U.S. Treasury Securities

We purchase U.S. Treasury Securities to tailor the overall risk characteristics of our investment securities portfolio. While U.S. Treasury Securities provide overall interest rate exposure, they are generally not sensitive to the other risks inherent in MBS.

The table below summarizes certain characteristics of our U.S. Treasury Securities at March 31, 2018.

Asset Type	Principal Amount		Fair Value		Weighted Average Coupon		Weighted Average Month to Maturity
U.S. Treasury Securities	$	670,000	$	670,696	2.66	%	67

Repurchase Agreements

We have entered into repurchase agreements to finance most of our Agency Securities. Our repurchase agreements are secured by our Agency Securities and bear interest at rates that have historically moved in close relationship to the Federal Funds Rate and LIBOR. We have established borrowing relationships with numerous investment banking firms and other lenders, 27 and 32 of which had open repurchase agreements with us at March 31, 2018 and December 31, 2017, respectively. We had outstanding balances under our repurchase agreements at March 31, 2018 and December 31, 2017 of $6,853,715 and $7,555,917, respectively, consistent with the decrease in our Agency Securities in our securities portfolio.

Our repurchase agreements require excess collateral, known as a “haircut.” At March 31, 2018, the average haircut percentage was 5.84% compared to 6.39% at December 31, 2017. The change in the average haircut percentage reflects the financing of our Credit Risk and Non-Agency Securities. At March 31, 2018 and December 31, 2017, Buckler Securities LLC had an amount at risk that was 11.0% and 9.0%, respectively, of our total stockholders' equity and had a weighted average maturity of repurchase agreements of 20 days and 70 days, respectively.

Derivative Instruments

We use various interest rate contracts to manage our interest rate risk as we deem prudent in light of market conditions and the associated costs with counterparties that have a high quality credit rating and with futures exchanges. We generally pay a fixed rate and receive a floating rate with the objective of fixing a portion of our borrowing costs and hedging the change in our book value to some degree. The floating rate we receive is generally the Federal Funds Rate or LIBOR. Our policies do not contain specific requirements as to the percentages or amount of interest rate risk that we are required to hedge. At March 31, 2018 and December 31, 2017, the notional value of our interest rate swap contracts was 110.0% and 70.8%, respectively, of the fair market value of our Agency Securities non-adjustable rate mortgages. For interest rate risk mitigation purposes, we consider Agency Securities to be ARMs if their interest rate is either currently subject to adjustment according to prevailing rates or if they are within 18 months of the period where such adjustments will occur. No assurance can be given that our derivatives will have the desired beneficial impact on our results of operations or financial condition. We have not elected cash flow hedge accounting treatment as allowed by GAAP. Since we do not designate our derivative activities as cash flow hedges, realized as well as unrealized gains/losses from these transactions will impact our GAAP earnings.

Use of derivative instruments may fail to protect or could adversely affect us because, among other things:

• available derivatives may not correspond directly with the interest rate risk for which protection is sought (e.g., the difference in interest rate movements for long-term U.S. Treasury Securities compared to Agency Securities);

• the duration of the derivatives may not match the duration of the related liability;

• the counterparty to a derivative agreement with us may default on its obligation to pay or not perform under the terms of the agreement and the collateral posted may not be sufficient to protect against any consequent loss;

• we may lose collateral we have pledged to secure our obligations under a derivative agreement if the associated counterparty becomes insolvent or files for bankruptcy;

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Management’s Discussion and Analysis (continued)

• we may experience a termination event under one or more of our derivative agreements related to our REIT status, equity levels and performance, which could result in a payout to the associated counterparty and a taxable loss to us;

• the credit-quality of the party owing money on the derivatives may be downgraded to such an extent that it impairs our ability to sell or assign our side of the hedging transaction; and

• the value of derivatives may be adjusted from time to time in accordance with GAAP to reflect changes in fair value; downward adjustments, or “mark-to-market losses,” would reduce our net income or increase any net loss.

The following graphs present the notional and weighted average interest rate of our hedging portfolio by year of maturity.

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Management’s Discussion and Analysis (continued)

At March 31, 2018 and December 31, 2017, we had derivatives with a net fair value of $128,821 and $29,263, respectively. At March 31, 2018 and December 31, 2017, we had interest rate swap contracts with an aggregate notional balance of $6,800,000 and $5,250,000. We also had TBA Agency Securities with an aggregate notional balance of $4,300,000 and $1,600,000 at March 31, 2018 and December 31, 2017, respectively. Counterparty risk of interest rate swap contracts and interest rate swaptions are limited to some degree because of daily mark-to-market and collateral requirements. These derivative transactions are designed to lock in a portion of funding costs for financing activities associated with our assets in such a way as to help assure the realization of attractive net interest margins and to vary inversely in value with our Agency Securities. Such contracts are based on assumptions about prepayments which, if not realized, will cause results to differ from expectations.

Although we attempt to structure our derivatives to offset the changes in asset prices, the complexity of the actual and expected pre-payment characteristics of the underlying mortgages as well as the volatility in mortgage interest rates relative to U.S. Treasury and interest rate swap contract rates makes achieving high levels of off-set difficult. We recognized net gains of $58,597 and $11,519, related to our derivatives for the three months ended March 31, 2018 and March 31, 2017, respectively. For the three months ended March 31, 2018, the net unrealized gain (loss) of our Agency Securities decreased by $(145,410). For the three months ended March 31, 2017, the net unrealized gain (loss) of our Agency Securities increased by $6,114. The net unrealized gain (loss) on Agency Securities is due to market price fluctuations.

As required by the Dodd-Frank Act, the Commodity Futures Trading Commission has adopted rules requiring certain interest rate swap contracts to be cleared through a derivatives clearing organization. We are required to clear certain new interest rate swap contracts. Cleared interest rate swaps may have higher margin requirements than un-cleared interest rate swaps we previously had. We have established an account with a futures commission merchant for this purpose. To date, we have not entered into any cleared interest rate swap contracts.

We are required to account for our TBA Agency Securities as derivatives when it is reasonably possible that we will not take or make timely physical delivery of the related securities. However, from time to time, we use TBA Agency Securities

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Management’s Discussion and Analysis (continued)

primarily to effectively establish and finance portfolio positions. See the section, Agency Securities, Interest-Only Securities and TBA Agency Securities above.

Contractual Obligations and Commitments

We had the following contractual obligations at March 31, 2018:

	Payments Due By Period
Obligations	Total		Less Than 1 Year		2-3 Years		4-5 Years		Greater Than 5 Years
Repurchase agreements	$	6,853,715	$	6,853,715	$	—	$	—	$	—
Interest expense on repurchase agreements	12,781		12,781		—		—		—
Related Party Fees (1)	190,085		27,155		54,310		54,310		54,310
Board of Directors fees (2)	8,288		1,184		2,368		2,368		2,368
Total	$	7,064,869	$	6,894,835	$	56,678	$	56,678	$	56,678

(1) Represents fees to be paid to ACM under the terms of the Management Agreements (Refer to Note 11 and Note 16 to the consolidated financial statements).

(2) Represents compensation to be paid to the Board in the form of cash and common equity.

We had contractual commitments under derivatives at March 31, 2018. We had interest rate swap contracts with an aggregate notional balance of $6,800,000, a weighted average swap rate of 1.90% and a weighted average term of 66 months at March 31, 2018.

Liquidity and Capital Resources

Net cash used in operating activities was $(607) and $(5,039), respectively, for the three months ended March 31, 2018 and March 31, 2017. Our average securities portfolio was $9,316,539 and $9,148,699, respectively, for the three months ended March 31, 2018 and March 31, 2017, respectively.

At March 31, 2018, we financed our securities portfolio with $6,853,715 of borrowings under repurchase agreements. Our leverage ratio at March 31, 2018, was 5.51:1. At March 31, 2018, we had a leverage ratio of 7.61:1 including TBA Agency Securities purchased forward and excluding debt related to forward settling sales. At March 31, 2018, our liquidity totaled $686,688, consisting of $216,497 of cash plus $470,191 of unpledged Agency Securities (including securities received as collateral). Our primary sources of funds are borrowings under repurchase arrangements, monthly principal and interest payments on our Agency Securities and cash generated from our operating results. Other sources of funds may include proceeds from equity and debt offerings and asset sales. We generally maintain liquidity to pay down borrowings under repurchase arrangements to reduce borrowing costs and otherwise efficiently manage our long-term investment capital. Because the level of our borrowings can be adjusted on a daily basis, the level of cash carried on our consolidated balance sheet is significantly less important than our potential liquidity available under our borrowing arrangements.

In addition to the repurchase agreement financing discussed above, from time to time we have entered into reverse repurchase agreements with certain of our repurchase agreement counterparties. Under a typical reverse repurchase agreement, we purchase U.S. Treasury Securities from a borrower in exchange for cash and agree to sell the same securities back in the future. We then sell such U.S. Treasury Securities to third parties and recognize a liability to return the securities to the original borrower. Reverse repurchase agreement receivables and repurchase agreement liabilities are presented net when they meet certain criteria, including being with the same counterparty, being governed by the same MRA, settlement through the same brokerage or clearing account and maturing on the same day. The practical effect of these transactions is to replace a portion of our repurchase agreement financing of our Agency Securities in our securities portfolio with short positions in U.S. Treasury Securities. We believe that this helps to reduce interest rate risk, and therefore counterparty credit and liquidity risk. We did not have any reverse repurchase agreements outstanding at March 31, 2018 and December 31, 2017.

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Management’s Discussion and Analysis (continued)

Both parties to the repurchase and reverse repurchase transactions have the right to make daily margin calls based on changes in the value of the collateral obtained and/or pledged.

We currently believe that we have sufficient liquidity and capital resources available for the acquisition of additional investments, repayments on repurchase borrowings, reacquisition of securities to be returned to borrowers and the payment of cash dividends as required for continued qualification as a REIT.

Our primary uses of cash are to purchase MBS, pay interest and principal on our borrowings, fund our operations and pay dividends. From time to time, we purchase or sell assets for forward settlement up to 90 days in the future to lock in purchase prices or sales proceeds.

During the three months ended March 31, 2018, we purchased $895,529 of securities using proceeds from repurchase agreements and principal repayments. During the three months ended March 31, 2018, we received cash of $176,817 from prepayments and scheduled principal payments on our securities. We had a net cash decrease from our repurchase agreements of $702,202 for the three months ended March 31, 2018 and made cash interest payments of approximately $53,651 on our liabilities for the three months ended March 31, 2018. Part of funding our operations includes providing margin cash to offset liability balances on our derivatives. We recovered $4,012 of cash collateral posted to counterparties at March 31, 2018 and decreased our liability by $98,128 for cash collateral posted by counterparties at March 31, 2018.

During the three months ended March 31, 2017, we purchased $1,883,963 of securities using proceeds from repurchase agreements and principal repayments. During the three months ended March 31, 2017, we received cash of $224,119 from prepayments and scheduled principal payments on our securities. We had a net cash increase from our repurchase agreements of $304,059 for the three months ended March 31, 2017 and made cash interest payments of approximately $36,117 on our liabilities for the three months ended March 31, 2017. Part of funding our operations includes providing margin cash to offset liability balances on our derivatives. We recovered $54,770 of cash collateral posted to counterparties at March 31, 2017 and increased our liability by $6,786 for cash collateral posted by counterparties at March 31, 2017.

We have continued to pursue additional lending counterparties in order to help increase our financial flexibility and ability to withstand periods of contracting liquidity in the credit markets.

Repurchase Agreements

Declines in the value of our Agency securities portfolio can trigger margin calls by our lenders under our repurchase agreements. An event of default or termination event under the standard MRA would give our counterparty the option to terminate all repurchase transactions existing with us and require any amount due to be payable immediately.

Changing capital or other financial market regulatory requirements may cause our lenders to exit the repurchase market, increase financing rates, tighten lending standards or increase the amount of required equity capital or haircut we post, any of which could make it more difficult or costly for us to obtain financing.

Financial sector volatility can also lead to increased demand and prices for high quality debt securities, including Agency Securities. While increased prices may increase the value of our Agency Securities, higher values may also reduce the return on reinvestment of capital, thereby lowering our future profitability.

The following graph represents the outstanding balances of our repurchase agreements (before the effect of netting reverse repurchase agreements), which finance most of our Agency Securities. Our repurchase agreements balance will fluctuate based on our change in capital, leverage targets and the market prices of our assets. The balance of repurchase agreements outstanding will fluctuate within any given month based on changes in the market value of the particular Agency Security pledged as collateral (including the effects of principal paydowns) and the level and timing of investment and reinvestment activity.

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Management’s Discussion and Analysis (continued)

See Note 9 to the consolidated financial statements for more information.

Effects of Margin Requirements, Leverage and Credit Spreads

Our MBS have values that fluctuate according to market conditions and, as discussed above, the market value of our MBS will decrease as prevailing interest rates or credit spreads increase. When the value of the securities pledged to secure a repurchase agreement decreases to the point where the positive difference between the collateral value and the loan amount is less than the haircut, our lenders may issue a margin call, which means that the lender will require us to pay the margin call in cash or pledge additional collateral to meet that margin call. Under our repurchase facilities, our lenders have full discretion to determine the value of the MBS we pledge to them. Most of our lenders will value securities based on recent trades in the market. Lenders also issue margin calls as the published current principal balance factors change on the pool of mortgages underlying the securities pledged as collateral when scheduled and unscheduled principal repayments are announced monthly.

We experience margin calls in the ordinary course of our business and under certain conditions, such as during a period of declining market value for MBS and we may experience margin calls as frequently as daily. In seeking to effectively manage the margin requirements established by our lenders, we maintain a position of cash and unpledged securities. We refer to this position as our liquidity. The level of liquidity we have available to meet margin calls is directly affected by our leverage levels, our haircuts and the price changes on our securities. If interest rates increase as a result of a yield curve shift or for another reason or if credit spreads widen, the prices of our collateral (and our unpledged assets that constitute our liquidity) will decline and we may experience margin calls. We will use our liquidity to meet such margin calls. There can be no assurance that we will maintain sufficient levels of liquidity to meet any margin calls. If our haircuts increase, our liquidity will proportionately decrease. If we increase our borrowings, our liquidity will decrease by the amount of additional haircut on the increased level of indebtedness. In addition, certain of our MRAs contain a restriction that prohibits our leverage from exceeding twelve times our stockholders’ equity as well as termination events in the case of significant reductions in equity capital.

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Management’s Discussion and Analysis (continued)

We intend to maintain a level of liquidity in relation to our assets that enables us to meet reasonably anticipated margin calls but that also allows us to be substantially invested in MBS. We may misjudge the appropriate amount of our liquidity by maintaining excessive liquidity, which would lower our investment returns, or by maintaining insufficient liquidity, which would force us to involuntarily liquidate assets into unfavorable market conditions and harm our results of operations and financial condition.

We generally seek to borrow (on a recourse basis) between six and ten times the amount of our total stockholders’ equity. At March 31, 2018 and December 31, 2017, our total borrowings were $6,853,715 and $7,555,917 (excluding accrued interest), respectively. At March 31, 2018 and December 31, 2017, we had a leverage ratio of approximately 5.51:1 and 5.70:1, respectively. At March 31, 2018, we had a leverage ratio of 7.61:1 including TBA Agency Securities purchased forward and excluding debt related to forward settling sales. At December 31, 2017, we had a leverage ratio of 6.96:1 including TBA Agency Securities purchased forward and excluding debt related to forward settling sales.

Forward-Looking Statements Regarding Liquidity

Based on our current portfolio, leverage rate and available borrowing arrangements, we believe that our cash flow from operations and our ability to make timely portfolio adjustments, will be sufficient to enable us to meet anticipated short-term (one year or less) liquidity requirements such as to fund our investment activities, meet our financing obligations, pay fees under the management agreements and fund our distributions to stockholders and pay general corporate expenses.

We may increase our capital resources by obtaining long-term credit facilities or making public or private offerings of equity or debt securities, including classes of preferred stock, common stock and senior or subordinated notes to meet our long-term (greater than one year) liquidity. Such financing will depend on market conditions for capital raises and for the investment of any proceeds and there can be no assurances that we will successfully obtain any such financing.

Stockholders’ Equity

See Note 13 to the consolidated financial statements.

Off-Balance Sheet Arrangements

At March 31, 2018 and December 31, 2017, we had not maintained any relationships with unconsolidated entities or financial partnerships, such as entities often referred to as structured finance, or special purpose or variable interest entities, established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes. Furthermore, at March 31, 2018 and December 31, 2017, we had not guaranteed any obligations of any unconsolidated entities or entered into any commitment or intent to provide funding to any such entities.

Critical Accounting Policies

See Note 3 to the consolidated financial statements for our significant accounting policies.

Valuation of Investments in Securities

 We carry our MBS and derivatives at fair value. Our Agency Securities are classified as available for sale, and therefore unrealized changes in fair value are reflected directly in total stockholders' equity as accumulated other comprehensive income or loss. Our Credit Risk and Non-Agency Securities and Interest-Only Securities are classified as trading securities, and therefore changes in fair value are reported in the consolidated statements of operations as income or loss. We do not use hedge accounting for our derivatives for financial reporting purposes and therefore changes in fair value are reflected in net income as other gain or loss. To the extent that fair value changes on derivatives offset fair value changes in our MBS, the fluctuation in our stockholders’ equity will be lower. For example, rising interest rates may tend to result in an overall increase in our reported net income even while our total stockholders’ equity declines.

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Management’s Discussion and Analysis (continued)

Fair value for the Agency Securities and Interest-Only Securities in our securities portfolio is based on obtaining a valuation for each Agency Security from third party pricing services and/or dealer quotes. The third party pricing services use common market pricing methods that may include pricing models that may incorporate such factors as coupons, prepayment speeds, spread to the Treasury curves and interest rate swap curves, duration, periodic and life caps and credit enhancement. If the fair value of an Agency Security is not available from the third party pricing services or such data appears unreliable, we obtain pricing indications from up to three dealers who make markets in similar Agency Securities. Management reviews pricing used to ensure that current market conditions are properly reflected. This review includes, but is not limited to, comparisons of similar market transactions or alternative third party pricing services, dealer pricing indications and comparisons to a third party pricing model.

The fair values of our derivatives are valued using information provided by third party pricing services that incorporate common market pricing methods that may include current interest rate curves, forward interest rate curves and market spreads to interest rate curves. Management compares pricing information received to dealer quotes to ensure that the current market conditions are properly reflected.

Fair value for the Credit Risk and Non-Agency Securities in our securities portfolio is based on obtaining a valuation for each Credit Risk and Non-Agency Security from third party pricing services and/or dealer quotes. The third party pricing services incorporate such factors as collateral type, bond structure and priority of payments, coupons, prepayment speeds, defaults, delinquencies and severities. If the fair value of a Credit Risk and Non-Agency Security is not available from the third party pricing services or such data appears unreliable, we obtain pricing indications from up to three dealers who make markets in similar Credit Risk and Non-Agency Securities. Management reviews pricing used to ensure that current market conditions are properly reflected. This review includes, but is not limited to, comparisons of similar market transactions or alternative third party pricing services, dealer pricing indications and comparisons to a third party pricing model.

Fair value for the U.S. Treasury Securities in our securities portfolio is based on obtaining a valuation for each U.S. Treasury Securities from third party pricing services and/or dealer quotes.

Realized Gains and Losses on Agency Securities

Security purchase and sale transactions, including purchases and sales for forward settlement, are recorded on the trade date to the extent it is probable that we will take or make timely physical delivery of the related securities. Gains or losses realized from the sale of securities are included in income and are determined using the specific identification method. We realize gains and losses on our Agency Securities upon their sale. At that time, previously unrealized amounts included in accumulated other comprehensive income are reclassified and reported in net income as other gain or loss. To the extent that we sell Agency Securities in later periods after changes in the fair value of those Agency Securities have occurred, we may report significant net income or net loss without a corresponding change in our total stockholders' equity.

Declines in the fair values of our Agency Securities that represent other than temporary impairments are also treated as realized losses and reported in net income as other loss. We evaluate Agency Securities for other than temporary impairment at least on a quarterly basis and more frequently when economic or market concerns warrant such evaluation. We consider an impairment to be other than temporary if we (1) have the intent to sell the Agency Securities, (2) believe it is more likely than not that we will be required to sell the securities before recovery (for example, because of liquidity requirements or contractual obligations), or (3) a credit loss exists. Impairment losses recognized establish a new cost basis for the related Agency Securities. Gains or losses on subsequent sales are determined by reference to such new cost basis.

Gains and Losses on Credit Risk and Non-Agency Securities and Interest-Only Securities

We carry our Credit Risk and Non-Agency Securities and Interest-Only Securities at fair value and reflect changes in those fair values in net income as other gains and losses.

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Management’s Discussion and Analysis (continued)

Gains and Losses on U.S. Treasury Securities

We carry our U.S. Treasury Securities at fair value and reflect changes in those fair values in net income as other gains and losses.

Inflation

Virtually all of our assets and liabilities are interest rate-sensitive in nature. As a result, interest rates and other factors influence our performance far more than inflation. Changes in interest rates do not necessarily correlate with inflation rates or changes in inflation rates. Our financial statements are prepared in accordance with GAAP and any distributions we may make will be determined by our Board based in part on our REIT taxable income as calculated according to the requirements of the Code; in each case, our activities and balance sheet are measured with reference to fair value without considering inflation.

Subsequent Events

See Note 18 to the consolidated financial statements.

Cautionary Note Regarding Forward-Looking Statements

This report contains various “forward-looking statements.” Forward-looking statements relate to expectations, beliefs, projections, future plans and strategies, anticipated events or trends and similar expressions concerning matters that are not historical facts. In some cases, you can identify forward-looking statements by the use of forward-looking terminology such as “believes,” “expects,” “may,” “will,” “would,” “could,” “should,” “seeks,” “approximately,” “intends,” “plans,” “projects,” “estimates” or “anticipates” or the negative of these words and phrases or similar words or phrases. All forward-looking statements may be impacted by a number of risks and uncertainties, including statements regarding the following subjects:

• our business and investment strategy;

• our anticipated results of operations;

• statements about future dividends;

• our ability to obtain financing arrangements;

• our understanding of our competition and ability to compete effectively;

• market, industry and economic trends; and

• interest rates.

The forward-looking statements in this report are based on our beliefs, assumptions and expectations of our future performance, taking into account all information currently available to us. These beliefs, assumptions and expectations are subject to risks and uncertainties and can change as a result of many possible events or factors, not all of which are known to us. If a change occurs, our business, financial condition, liquidity and results of operations may vary materially from those expressed in our forward-looking statements. You should carefully consider these risks before you make an investment decision with respect to our stock, along with the following factors that could cause actual results to vary from our forward-looking statements:

• the impact of the federal conservatorship of Fannie Mae and Freddie Mac and related efforts, along with any changes in laws and regulations affecting the relationship between Fannie Mae and Freddie Mac and the federal government and the Fed system;

• the possible material adverse effect on our business if the U.S. Congress passed legislation reforming or winding down Fannie Mae or Freddie Mac;

• mortgage loan modification programs and future legislative action;

• actions by the Fed which could cause a flattening of the yield curve, which could materially adversely affect our business, financial condition and results of operations and our ability to pay distributions to our stockholders;

• the impact of a delay or failure of the U.S. Government in reaching an agreement on the national debt ceiling;

• availability, terms and deployment of capital;

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ARMOUR Residential REIT, Inc.

Management’s Discussion and Analysis (continued)

• changes in economic conditions generally;

• changes in interest rates, interest rate spreads and the yield curve or prepayment rates;

• general volatility of the financial markets, including markets for mortgage securities;

• the downgrade of the U.S. Government's or certain European countries' credit ratings and future downgrades of the U.S. Government's or certain European countries' credit ratings may materially adversely affect our business, financial condition and results of operations;

• inflation or deflation;

• availability of suitable investment opportunities;

• the degree and nature of our competition, including competition for MBS;

• changes in our business and investment strategy;

• our failure to maintain an exemption from being regulated as a commodity pool operator;

• our dependence on ACM and ability to find a suitable replacement if ACM was to terminate its management relationship with us;

• the existence of conflicts of interest in our relationship with ACM, certain of our directors and our officers, which could result in decisions that are not in the best interest of our stockholders;

• our management's competing duties to other affiliated entities, which could result in decisions that are not in the best interest of our stockholders;

• changes in personnel at ACM or the availability of qualified personnel at ACM;

• limitations imposed on our business by our status as a REIT under the Code;

• the potential burdens on our business of maintaining our exclusion from the 1940 Act and possible consequences of losing that exemption;

• changes in GAAP, including interpretations thereof; and

• changes in applicable laws and regulations.

We cannot guarantee future results, levels of activity, performance or achievements. You should not place undue reliance on forward-looking statements, which apply only as of the date of this report. We do not intend and disclaim any duty or obligation to update or revise any industry information or forward-looking statements set forth in this report to reflect new information, future events or otherwise, except as required by law.

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ARMOUR Residential REIT, Inc.

Management’s Discussion and Analysis (continued)

Glossary of Terms:

“Agency Securities” means securities issued or guaranteed by a GSE, such as Fannie Mae, Freddie Mac or a government agency such as Ginnie Mae

“ARMs” means Adjustable Rate Mortgage backed securities.

“Basis swap contracts” means derivative contracts that allow us to exchange one floating interest rate basis for another, for example, 3 month LIBOR and Fed Funds Rates, thereby allowing us to diversify our floating rate basis exposures.

“Board” means ARMOUR’s Board of Directors.

“BUCKLER” means BUCKLER Securities, LLC, a Delaware limited liability company, and a FINRA-regulated broker-dealer. The intended purpose of BUCKLER is to facilitate access to repurchase financing for the Company, on potentially more attractive terms (based upon the combination of rate, term, size, haircut, stability and reliability generally available in the market for comparable securities transactions) than are available through third party brokers and dealers in the repurchase financing market, or from other suitable counterparties.

“CMBS” means commercial mortgage backed securities.

“Code” means the Internal Revenue Code of 1986.    

“Common stock DRIP” means the Company's dividend reinvestment and stock purchase plan

“CPR” means constant prepayment rate.

“Dodd-Frank Act” means the Dodd-Frank Wall Street Reform and Consumer Protection Act.

“Exchange Act” means the Securities Exchange Act of 1934.

“Fannie Mae” means the Federal National Mortgage Association.

“Fed” means the U.S. Federal Reserve.

“FINRA” means the Financial Industry Regulatory Authority

“Freddie Mac” means the Federal Home Loan Mortgage Corporation.

“GAAP” means accounting principles generally accepted in the United States of America.

“Ginnie Mae” means the Government National Mortgage Administration.

“GSE” means U.S. Government Sponsored Entity. Obligations of agencies originally established or chartered by the U.S. government to serve public purposes as specified by the U.S. Congress; these obligations are not explicitly guaranteed as to the timely payment of principal and interest by the full faith and credit of the U.S. government.

“Haircut” means the weighted average margin requirement, or the percentage amount by which the collateral value must exceed the loan amount. Among other things, it is a measure of our unsecured credit risk to our lenders.

“Hybrid” means a mortgage that has a fixed rate for an initial term after which the rate becomes adjustable according to a specific schedule.

“Interest-Only Securities” means the interest portion of Agency Securities, which is separated and sold individually from the principal portion of the same payment.

“JAVELIN” means JAVELIN Mortgage Investment Corp., formerly a publicly-traded REIT. Since its acquisition on April 6, 2016, JAVELIN became a wholly-owned, qualified REIT subsidiary of ARMOUR and continues to be managed by ACM pursuant to the pre-existing management agreement between JAVELIN and ACM.

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ARMOUR Residential REIT, Inc.

Management’s Discussion and Analysis (continued)

“LIBOR” means the London Interbank Offered Rate.

“MBS” means mortgage backed securities, a security representing a direct interest in a pool of mortgage loans. The pass-through issuer or servicer collects the payments on the loans in the pool and “passes through” the principal and interest to the security holders on a pro rata basis.

“Merger” means the merger of JMI Acquisition Corporation, a wholly-owned subsidiary that was formed for the purpose of acquiring JAVELIN.

“MRA” means master repurchase agreement. A document that outlines standard terms between the Company and counterparties for repurchase agreement transactions.

“Multi-Family MBS” means MBS issued under Fannie Mae's Delegated Underwriting System (DUS) program.

“Credit Risk and Non-Agency Securities” means securities backed by residential mortgages in which we may invest, for which are not guaranteed by Fannie Mae, Freddie Mac or Ginnie Mae.

“REIT” means Real Estate Investment Trust. A special purpose investment vehicle that provides investors with the ability to participate directly in the ownership or financing of real-estate related assets by pooling their capital to purchase and manage mortgage loans and/or income property.

“Repurchase Program” means the Company's common stock repurchase program authorized by our Board.

“SEC” means the Securities and Exchange Commission.

“TBA Agency Securities” means forward contracts for the purchase (“long position”) or sale (“short position”) of Agency Securities at a predetermined price, face amount, issuer, coupon and stated maturity on an agreed-upon future date.

“Tender Offer” means the tender offer by Acquisition to purchase all of the outstanding common stock of JAVELIN.

“U.S.” means United States.

“1940 Act” means the Investment Company Act of 1940.

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Item 3. Quantitative and Qualitative Disclosures about Market Risk

ARMOUR Residential REIT, Inc.

We seek to manage our risks related to the credit-quality of our assets, interest rates, liquidity, prepayment speeds and market value while, at the same time, seeking to provide an opportunity to stockholders to realize attractive risk adjusted returns through ownership of our capital stock. While we do not seek to avoid risk completely, we believe the risk can be quantified from historical experience and seek to actively manage that risk, to earn sufficient compensation to justify taking those risks and to maintain capital levels consistent with the risks we undertake.

Interest Rate, Cap and Mismatch Risk

A portion of our securities portfolio consists of hybrid adjustable rate and adjustable rate MBS. Hybrid mortgages are ARMs that have a fixed-interest rate for an initial period of time (typically three years or greater) and then convert to an adjustable rate for the remaining loan term. Our debt obligations are generally repurchase agreements of limited duration that are periodically refinanced at current market rates.

ARMs are typically subject to periodic and lifetime interest rate caps that limit the amount the interest rate can change during any given period. ARMs are also typically subject to a minimum interest rate payable. Our borrowings are not subject to similar restrictions. Hence, in a period of increasing interest rates, interest rates on our borrowings could increase without limitation, while the interest rates on our mortgage related assets could be limited. This exposure would be magnified to the extent we acquire fixed rate MBS or ARMs that are not fully indexed. Furthermore, some ARMs may be subject to periodic payment caps that result in some portion of the interest being deferred and added to the principal outstanding. These factors could lower our net interest income or cause a net loss during periods of rising interest rates, which would negatively impact our liquidity, net income and our ability to make distributions to stockholders.

We fund the purchase of a substantial portion of our ARMs with borrowings that have interest rates based on indices and repricing terms similar to, but of shorter maturities than, the interest rate indices and repricing terms of our mortgage assets. Thus, we anticipate that in most cases the interest rate indices and repricing terms of our mortgage assets and our funding sources will not be identical, thereby creating an interest rate mismatch between assets and liabilities. During periods of changing interest rates, such interest rate mismatches could negatively impact our net interest income, dividend yield and the market price of our stock. Most of our adjustable rate assets are based on the one-year constant maturity treasury rate and the one-year LIBOR rate and our debt obligations are generally based on LIBOR. These indices generally move in the same direction, but there can be no assurance that this will continue to occur.

Our ARMs and borrowings reset at various different dates for the specific asset or obligation. In general, the repricing of our debt obligations occurs more quickly than on our assets. Therefore, on average, our cost of funds may rise or fall more quickly than our earnings rate on our assets.

Furthermore, our net income may vary somewhat as the spread between one-month interest rates, the typical term for our repurchase agreements and six-month and twelve-month interest rates, the typical reset term of ARMs, varies.

Prepayment Risk

As we receive repayments of principal on our Agency Securities from prepayments and scheduled payments, premiums paid on such securities are amortized against interest income and discounts are accreted to interest income as realized. Premiums arise when we acquire Agency Securities at prices in excess of the principal balance of the mortgage loans underlying such Agency Securities. Conversely, discounts arise when we acquire Agency Securities at prices below the principal balance of the mortgage loans underlying such Agency Securities. Volatility in actual prepayment speeds will create volatility in the amount of premium amortization we recognize. Higher speeds will reduce our interest income and lower speeds will increase our interest income.

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ARMOUR Residential REIT, Inc.

Market Risk Disclosures (continued)

Credit Risk for Credit Risk and Non-Agency Securities

We purchase Credit Risk and Non-Agency Securities at prices which incorporate our expectations for prepayment speeds, defaults, delinquencies and severities. These expectations determine the yields we receive on our assets. If actual prepayment speeds, defaults, delinquencies and severities are different from our expectations, our actual yields could be higher or lower.

Our Credit Risk and Non-Agency Securities are subject to risk of loss with regard to principal and interest payments and at March 31, 2018 and December 31, 2017, have generally either been assigned below investment grade ratings by rating agencies, or have not been rated. We evaluate each investment based on the characteristics of the underlying collateral and securitization structure, rather than relying on the ratings assigned by rating agencies.

Interest Rate Risk and Effect on Market Value Risk

Another component of interest rate risk is the effect changes in interest rates will have on the market value of our MBS. We face the risk that the market value of our MBS will increase or decrease at different rates than that of our liabilities, including our derivative instruments.

We primarily assess our interest rate risk by estimating the effective duration of our assets and the effective duration of our liabilities and by estimating the time difference between the interest rate adjustment of our assets and the interest rate adjustment of our liabilities. Effective duration essentially measures the market price volatility of financial instruments as interest rates change. We generally estimate effective duration using various financial models and empirical data. Different models and methodologies can produce different effective duration estimates for the same securities.

The sensitivity analysis tables presented below reflect the estimated impact of an instantaneous parallel shift in the yield curve, up and down 50 and 100 basis points, on the market value of our interest rate-sensitive investments and net interest income, at March 31, 2018 and December 31, 2017. It assumes that the spread between the interest rates on Agency Securities and long term U.S. Treasury Securities remains constant. Actual interest rate movements over time will likely be different, and such differences may be material. When evaluating the impact of changes in interest rates, prepayment assumptions and principal reinvestment rates are adjusted based on ACM’s expectations. The analysis presented utilized assumptions, models and estimates of ACM based on ACM's judgment and experience.

March 31, 2018

	Percentage Change in Projected
Change in Interest Rates	Net Interest Income	Portfolio Value  Including Derivatives	Shareholder's Equity Including Hedges
1.00%	10.95%	(0.95)%	(8.22)%
0.50%	5.59%	(0.40)%	(3.47)%
(0.50)%	(6.20)%	0.11%	0.93%
(1.00)%	(13.03)%	(0.17)%	(1.48)%

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ARMOUR Residential REIT, Inc.

Market Risk Disclosures (continued)

December 31, 2017

	Percentage Change in Projected
Change in Interest Rates	Net Interest Income	Portfolio Value Including Derivatives	Shareholder's Equity Including Hedges
1.00%	13.20%	(1.33)%	(10.39)%
0.50%	7.13%	(0.54)%	(4.17)%
(0.50)%	(5.97)%	0.20%	1.58%
(1.00)%	(13.11)%	0.08%	0.59%

While the tables above reflect the estimated immediate impact of interest rate increases and decreases on a static securities portfolio, we rebalance our securities portfolio from time to time either to seek to take advantage of or reduce the impact of changes in interest rates. It is important to note that the impact of changing interest rates on market value and net interest income can change significantly when interest rates change beyond 100 basis points from current levels. Therefore, the volatility in the market value of our assets could increase significantly when interest rates change beyond amounts shown in the tables above. In addition, other factors impact the market value of and net interest income from our interest rate-sensitive investments and derivative instruments, such as the shape of the yield curve, market expectations as to future interest rate changes and other market conditions. Accordingly, interest income would likely differ from that shown above and such difference might be material and adverse to our stockholders.

The above tables quantify the potential changes in net interest income and securities portfolio value, which includes the value of our derivatives, should interest rates immediately change. Given the low level of interest rates at March 31, 2018 and December 31, 2017, we applied a floor of 0% for all anticipated interest rates included in our assumptions. Due to the presence of this floor, it is anticipated that any hypothetical interest rate decrease would have a limited positive impact on our funding costs beyond a certain level; however, because prepayments speeds are unaffected by this floor, it is expected that any increase in our prepayment speeds (occurring as a result of any interest rate decrease or otherwise) could result in an acceleration of our premium amortization and the reinvestment of such prepaid principal in lower yielding assets. As a result, the presence of this floor limits the positive impact of any interest rate decrease on our funding costs. Therefore, at some point, hypothetical interest rate decreases could cause the fair value of our financial instruments and our net interest income to decline.

Market Value Risk

All of our Agency Securities are classified as available for sale securities. As such, they are reflected at fair value with the periodic adjustment to fair value (that is not considered to be an other than temporary impairment) reported as part of the separate consolidated statement of comprehensive income (loss).

All of our Credit Risk and Non-Agency Securities, Interest-Only Securities and U.S. Treasury Securities are classified as trading securities. As such, they are reflected at fair value with the periodic adjustment to fair value reflected as part of “Other Income (Loss)” reported as part of the consolidated statements of operations.

The market value of our MBS can fluctuate due to changes in interest rates and other factors. Weakness in the mortgage market may adversely affect the performance and market value of our investments. This could negatively impact our book value. Furthermore, if our lenders are unwilling or unable to provide additional financing, we could be forced to sell our MBS at an inopportune time when prices are depressed. The principal and interest payments on our Agency Securities may be guaranteed by Fannie Mae, Freddie Mac, or Ginnie Mae.

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ARMOUR Residential REIT, Inc.

Market Risk Disclosures (continued)

March 31, 2018

	Percentage Change in Projected
Change in MBS spread	Portfolio Market Value	Portfolio Book Value
+25 BPS	(1.16)%	(9.78)%
+10 BPS	(0.46)%	(3.91)%
-10 BPS	0.46%	3.91%
-25 BPS	1.16%	9.78%

December 31, 2017

	Percentage Change in Projected
Change in MBS spread	Portfolio Market Value	Portfolio Book Value
+25 BPS	(1.32)%	(10.08)%
+10 BPS	(0.53)%	(4.03)%
-10 BPS	0.53%	4.03%
-25 BPS	1.32%	10.08%

The above tables quantify the estimated changes in the fair value of our securities portfolio and in our portfolio book value as of March 31, 2018 and December 31, 2017. Should spreads widen or tighten by 10 and 25 basis points (BPS), the estimated impact of changes in spreads is in addition to our interest rate sensitivity presented above. Our securities portfolio's sensitivity of mortgage spread changes will vary with changes in interest rates and in the size and composition of our securities portfolio. Therefore, actual results could differ materially from our estimates.

Credit Risk

We have limited our exposure to credit losses on our securities portfolio of Agency Securities. The payment of principal and interest on the Freddie Mac and Fannie Mae Agency Securities are guaranteed by those respective agencies and the payment of principal and interest on the Agency Securities guaranteed by Ginnie Mae are backed by the full faith and credit of the U.S. Government.

Fannie Mae and Freddie Mac remain in conservatorship of the U.S. Government. There can be no assurances as to how or when the U.S. Government will end these conservatorships or how the future profitability of Fannie Mae and Freddie Mac and any future credit rating actions may impact the credit risk associated with Agency Securities and, therefore, the value of the Agency Securities in our securities portfolio.

We purchase Credit Risk and Non-Agency Securities at prices which incorporate our expectations for prepayment speeds, defaults, delinquencies and severities. These expectations determine the yields we receive on our assets. If actual prepayment speeds, defaults, delinquencies and severities are different from our expectations, our actual yields could be higher or lower.

Liquidity Risk

Our primary liquidity risk arises from financing long-maturity MBS with short-term debt. The interest rates on our borrowings generally adjust more frequently than the interest rates on our ARMs. Accordingly, in a period of rising interest rates, our borrowing costs will usually increase faster than our interest earnings from MBS.

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Item 4. Controls and Procedures

ARMOUR Residential REIT, Inc.

Evaluation of Disclosure Controls and Procedures

Our Co-Chief Executive Officers (“Co-CEOs”) and Chief Financial Officer (“CFO”) participated in an evaluation by our management of the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) as of the end of our fiscal quarter that ended on March 31, 2018. Based on their participation in that evaluation, our Co-CEOs and CFO concluded that our disclosure controls and procedures were effective as of March 31, 2018 to ensure that information required to be disclosed in our reports filed or submitted under the Exchange Act, is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and to ensure that information required to be disclosed in our reports filed or furnished under the Exchange Act, is accumulated and communicated to our management, including our Co-CEOs and CFO, as appropriate, to allow timely decisions regarding required disclosures.

Internal Control Over Financial Reporting

Our Co-CEOs and CFO also participated in an evaluation by our management of any changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) that occurred during the three months ended March 31, 2018. That evaluation did not identify any changes that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II. OTHER INFORMATION

Item 1. Legal Proceedings

ARMOUR Residential REIT, Inc.

Nine putative class action lawsuits have been filed in connection with the Tender Offer and Merger (collectively, the “Transactions”): (1) Stourbridge Investments Ltd. v. ARMOUR Residential REIT, Inc., et al. (Case No. 24-C-16-001542), filed March 8, 2016 in the Circuit Court for Baltimore City, Maryland; (2) Timothy Lenell v. ARMOUR Residential REIT, Inc., et al., (Case No. 2016 CA 000164), filed March 8, 2016 in the Circuit Court for the Nineteenth Judicial Circuit for Indian River County, Florida; (3) Alexander Vartanov v. ARMOUR Residential REIT, Inc., et al. (Case No. 24-C-16-001593), filed March 10, 2016, in the Circuit Court for Baltimore City, Maryland; (4) Robert Curley v. ARMOUR Residential REIT, Inc., et al. (Case No. 24-C-16-001659, filed March 14, 2016 in the Circuit Court for Baltimore City, Maryland; (5) Antonio Rado and Craig and Amanda Hosler v. ARMOUR Residential REIT, Inc., et al. (Case No. 24-C-16-001684), filed March 15, 2016 in the Circuit Court for Baltimore City, Maryland; (6) Curtis Heid v. ARMOUR Residential REIT, Inc., et al. (Case No. 24-C-16-001706), filed March 16, 2016 in the Circuit Court for Baltimore City, Maryland; (7) Robert Aivasian v. ARMOUR Residential REIT, Inc., et. al. (Case No. 24-C-16-001808), filed March 22, 2016 in the Circuit Court for Baltimore City, Maryland; (8) Neil Harmon v. ARMOUR Residential REIT, Inc., et al. (Case No. 24-C-16-001812), filed March 22, 2016 in the Circuit Court for Baltimore City, Maryland; and (9) Benjamin C. Washington, et al. v. ARMOUR Residential REIT, Inc., et al. (Case No. 24-C-16-001829), filed March 23, 2016 in the Circuit Court for Baltimore City, Maryland.

All nine suits name ARMOUR, the previous members of JAVELIN’s board of directors prior to the Merger (of which eight are current members of ARMOUR’s board of directors) (the “Individual Defendants”) and JMI Acquisition Corporation (“Acquisition”) as defendants. The Lenell, Curley, Heid and Harmon suits also name ACM as an additional defendant. All suits except for the Harmon suit also name JAVELIN as an additional defendant. The lawsuits were brought by purported holders of JAVELIN’s common stock, both individually and on behalf of a putative class of JAVELIN’s stockholders, alleging that the Individual Defendants breached their fiduciary duties owed to the plaintiffs and the putative class of JAVELIN stockholders, including claims that the Individual Defendants failed to properly value JAVELIN; failed to take steps to maximize the value of JAVELIN to its stockholders; ignored or failed to protect against conflicts of interest; failed to disclose material information about the Transactions; took steps to avoid competitive bidding and to give ARMOUR an unfair advantage by failing to adequately solicit other potential acquirors or alternative transactions; and erected unreasonable barriers to other third-party bidders. The suits also allege that ARMOUR, JAVELIN, ACM and Acquisition aided and abetted the alleged breaches of fiduciary duties by the Individual Defendants. The lawsuits seek equitable relief, including, among other relief, to enjoin consummation of the Transactions, or rescind or unwind the Transactions if already consummated, and award costs and disbursements, including reasonable attorneys’ fees and expenses. The Florida action was never served on the defendants, and that case was voluntarily dismissed and closed on January 20, 2017. On April 25, 2016, the Maryland court issued an order consolidating the 8 Maryland cases into 1 action, captioned In re JAVELIN Mortgage Investment Corp. Shareholder Litigation (Case No. 24-C-16-001542), and designated counsel for one of the Maryland cases as interim lead co-counsel. On May 26, 2016, interim lead counsel filed the Consolidated Amended Class Action Complaint for Breach of Fiduciary Duty asserting consolidated claims of breach of fiduciary duty, aiding and abetting the breaches of fiduciary duty, and waste. On June 27, 2016, defendants filed a Motion to Dismiss the Consolidated Amended Class Action Complaint for failing to state a claim upon which relief can be granted. A hearing was held on the Motion to Dismiss on March 3, 2017, and the Court reserved ruling. To date, the Court has not issued an order on the Motion to Dismiss.

Each of ARMOUR, JAVELIN, ACM and the Individual Defendants intends to defend the claims made in these lawsuits vigorously; however, there can be no assurance that any of ARMOUR, JAVELIN, ACM or the Individual Defendants will prevail in its defense of any of these lawsuits to which it is a party. An unfavorable resolution of any such litigation surrounding the Transactions may result in monetary damages being awarded to the plaintiffs and the putative class of former stockholders of JAVELIN, and the cost of defending the litigation, even if resolved favorably, could be substantial. Such litigation could also substantially divert the attention of the Individual Defendants and ARMOUR’s, JAVELIN’s and ACM’s management and their resources in general. Due to the preliminary nature of all nine suits, ARMOUR is not able at this time to estimate their outcome.

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ARMOUR Residential REIT, Inc.

Item 1A. Risk Factors

There have been no material changes to the risk factors disclosed in our Annual Report on Form 10-K for the year ended December 31, 2017, filed with the SEC on February 15, 2018.

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

None.

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

On April 24, 2018, our Board of Directors amended our bylaws, effective immediately. The amended Article XIV now permits stockholders, subject to the satisfaction of certain procedural requirements, to amend our bylaws by the affirmative vote of the holders of a majority of our outstanding Common Shares entitled to be cast thereon pursuant to a binding proposal submitted for approval at a duly called annual meeting or special meeting of stockholders. A stockholder proposal submitted under the amended Article XIV may not alter or repeal (i) Article XII of the bylaws, which provides for indemnification of our directors and officers, or (ii) Article XIV of the bylaws, which addresses procedures for amendment of the bylaws, without the approval of the Board of Directors.

The foregoing description of the amended bylaws is qualified in its entirety by reference to a copy of the First Amendment to Amended and Restated Bylaws filed as Exhibit 3.1 to this Form 10-Q, which is incorporated by reference herein.

Item 6. Exhibits

EXHIBIT INDEX
Exhibit Number	Description
3.1	First Amendment to Amended and Restated Bylaws of ARMOUR (2)
31.1	Certification of Chief Executive Officer Pursuant to SEC Rule 13a-14(a)/15d-14(a) (1)
31.2	Certification of Chief Executive Officer Pursuant to SEC Rule 13a-14(a)/15d-14(a) (1)
31.3	Certification of Chief Financial Officer Pursuant to SEC Rule 13a14(a)/15d-14(a) (1)
32.1	Certification of Chief Executive Officer Pursuant to 18 U.S.C. §1350 (2)
32.2	Certification of Chief Executive Officer Pursuant to 18 U.S.C. §1350 (2)
32.3	Certification of Chief Financial Officer Pursuant to 18 U.S.C. §1350 (2)
101.INS	XBRL Instance Document (1)
101.SCH	XBRL Taxonomy Extension Schema Document (1)
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document (1)
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document (1)
101.LAB	XBRL Taxonomy Extension Label Linkbase Document (1)
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document (1)

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ARMOUR Residential REIT, Inc.

(1)	Filed herewith.
(2)	Furnished herewith.

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

April 25, 2018	ARMOUR RESIDENTIAL REIT, INC.
	/s/ James R. Mountain
	James R. Mountain
	Chief Financial Officer, Duly Authorized Officer and Principal Financial Officer

EX-3.1

EXHIBIT 3.1

ARMOUR RESIDENTIAL REIT, INC.

FIRST AMENDMENT

TO AMENDED AND RESTATED BYLAWS

The Amended and Restated Bylaws (the “Bylaws”) of ARMOUR Residential REIT, Inc., a Maryland corporation (the “Corporation”), are hereby amended by deleting therefrom Article XIV in its entirety and inserting in lieu thereof a new Article XIV as follows:

ARTICLE XIV

AMENDMENT OF BYLAWS

The Board of Directors shall have the power to adopt, alter or repeal any provision of these Bylaws and to make new Bylaws. In addition, except as provided below, stockholders may alter, amend or repeal any provision of these Bylaws and adopt new Bylaws at an annual meeting of stockholders or special meeting of stockholders called for such purpose, in each case with the approval of a majority of the votes entitled to be cast thereon. A stockholders proposal submitted under this Article XIV may not alter or repeal (i) Article XII of the Bylaws, which provides for indemnification of the Corporation’s directors or officers, or (ii) Article XIV of the Bylaws, which addresses procedures for amendment of the Bylaws, without the approval of the Board of Directors.

EX-31.1

EXHIBIT 31.1

Certification Pursuant to 18 U.S.C Section 1350, Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Scott J. Ulm of ARMOUR Residential REIT, Inc., certify that:

1. I have reviewed this quarterly report on Form 10-Q for the period ended March 31, 2018 of ARMOUR Residential REIT, Inc. (the “registrant”);

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 officers 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 officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

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

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

Date: April 25, 2018
	ARMOUR RESIDENTIAL REIT, INC.
		By:	/s/ Scott J. Ulm
			Scott J. Ulm
			Co-Chief Executive Officer

EX-31.2

EXHIBIT 31.2

Certification Pursuant to 18 U.S.C Section 1350, Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Jeffrey J. Zimmer of ARMOUR Residential REIT, Inc., certify that:

1. I have reviewed this quarterly report on Form 10-Q for the period ended March 31, 2018 of ARMOUR Residential REIT, Inc. (the “registrant”);

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 officers 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 officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

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

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

Date: April 25, 2018
	ARMOUR RESIDENTIAL REIT, INC.
		By:	/s/ Jeffrey J. Zimmer
			Jeffrey J. Zimmer
			Co-Chief Executive Officer

EX-31.3

EXHIBIT 31.3

Certification Pursuant to 18 U.S.C Section 1350, Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, James R. Mountain of ARMOUR Residential REIT, Inc., certify that:

1. I have reviewed this quarterly report on Form 10-Q for the period ended March 31, 2018 of ARMOUR Residential REIT, Inc. (the “registrant”);

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 officers 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 officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

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

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

Date: April 25, 2018
	ARMOUR RESIDENTIAL REIT, INC.
		By:	/s/ James R. Mountain
			James R. Mountain
			Chief Financial Officer

EX-32.1

EXHIBIT 32.1

Certification Pursuant To

18 U.S.C. Section 1350,

as Adopted Pursuant to

Section 906 of The Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report of ARMOUR Residential REIT, Inc. (the “Company”) on Form 10-Q for the period ended March 31, 2018 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Scott J. Ulm, Co-Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) the Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

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

Date: April 25, 2018
	ARMOUR RESIDENTIAL REIT, INC.
		By:	/s/ Scott J. Ulm
			Scott J. Ulm
			Co-Chief Executive Officer

EX-32.2

EXHIBIT 32.2

Certification Pursuant To

18 U.S.C. Section 1350,

as Adopted Pursuant to

Section 906 of The Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report of ARMOUR Residential REIT, Inc. (the “Company”) on Form 10-Q for the period ended March 31, 2018 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Jeffrey J. Zimmer, Co-Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) the Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

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

Date: April 25, 2018
	ARMOUR RESIDENTIAL REIT, INC.
		By:	/s/ Jeffrey J. Zimmer
			Jeffrey J. Zimmer
			Co-Chief Executive Officer

EX-32.3

EXHIBIT 32.3

Certification Pursuant To

18 U.S.C. Section 1350,

as Adopted Pursuant to

Section 906 of The Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report of ARMOUR Residential REIT, Inc. (the “Company”) on Form 10-Q for the period ended March 31, 2018 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, James R. Mountain, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) the Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

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

Date: April 25, 2018
	ARMOUR RESIDENTIAL REIT, INC.
		By:	/s/ James R. Mountain
			James R. Mountain
			Chief Financial Officer

XML

Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2018	Apr. 24, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	Armour Residential REIT, Inc.
Entity Central Index Key	0001428205
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Well-known Seasoned Issuer	Yes
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		41,902,723

XML

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Assets
Cash	$ 216,497	$ 265,232
Cash collateral posted to counterparties	13,150	17,162
Agency Securities (including pledged securities of $5,725,997 at March 31, 2018 and $7,094,766 at December 31, 2017)	6,245,432	7,478,966
Receivable for unsettled sales - pledged securities	68,796	0
Derivatives, at fair value	135,703	37,211
Accrued interest receivable	20,492	22,165
Prepaid and other	1,608	1,600
Subordinated loans due from BUCKLER Securities LLC	105,000	105,000
Total Assets	8,471,257	8,928,917
Liabilities:
Repurchase agreements	6,853,715	7,555,917
Cash collateral posted by counterparties	127,721	29,593
Payable for unsettled purchases	227,409	0
Derivatives, at fair value	6,882	7,948
Accrued interest payable- repurchase agreements	5,274	6,452
Accounts payable and other accrued expenses	5,290	2,956
Total Liabilities	7,226,291	7,602,866
Commitments and contingencies
Preferred stock, $0.001 par value, 50,000 shares authorized;
Common stock, $0.001 par value, 125,000 shares authorized, 41,902 and 41,877 shares issued and outstanding at March 31, 2018 and December 31, 2017	42	42
Additional paid-in capital	2,712,611	2,709,335
Accumulated deficit	(1,346,867)	(1,363,223)
Accumulated other comprehensive loss	(120,828)	(20,111)
Total Stockholders’ Equity	1,244,966	1,326,051
Total Liabilities and Stockholders’ Equity	8,471,257	8,928,917
Series A Preferred Stock
Preferred stock, $0.001 par value, 50,000 shares authorized;
Preferred stock: 8.250% Series A Cumulative Preferred Stock; 2,181 issued and outstanding ($54,514 aggregate liquidation preference); 7.875% Series B Cumulative Preferred Stock; 6,369 and 6,262 shares issued and outstanding at March 31, 2018 and December 31, 2017 ($159,232 and $156,560 aggregate liquidation preference, respectively)	2	2
Series B Preferred Stock
Preferred stock, $0.001 par value, 50,000 shares authorized;
Preferred stock: 8.250% Series A Cumulative Preferred Stock; 2,181 issued and outstanding ($54,514 aggregate liquidation preference); 7.875% Series B Cumulative Preferred Stock; 6,369 and 6,262 shares issued and outstanding at March 31, 2018 and December 31, 2017 ($159,232 and $156,560 aggregate liquidation preference, respectively)	6	6
Credit Risk and Non-Agency Securities
Assets
Securities, trading, at fair value	968,950	975,829
Interest-Only Securities
Assets
Securities, trading, at fair value	24,933	25,752
US Treasury Securities
Assets
Securities, trading, at fair value	$ 670,696	$ 0

XML

Condensed Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Agency securities pledged	$ 5,725,997	$ 7,094,766
Receivables for unsettled sales, pledged securities	$ 63,535
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	125,000,000	125,000,000
Common stock, shares issued (in shares)	41,902,000	41,877,000
Common stock, shares outstanding (in shares)	41,902,000	41,877,000
Series A Preferred Stock
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	9,610,000
Preferred stock, dividend rate	8.25%	8.25%
Preferred stock, shares issued (in shares)	2,181,000	2,181,000
Preferred stock, shares outstanding (in shares)	2,181,000	2,181,000
Preferred stock, aggregate liquidation preference	$ 54,514	$ 54,514
Series B Preferred Stock
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	7,650,000
Preferred stock, dividend rate	7.875%	7.875%
Preferred stock, shares issued (in shares)	6,369,000	6,262,000
Preferred stock, shares outstanding (in shares)	6,369,000	6,262,000
Preferred stock, aggregate liquidation preference	$ 159,232	$ 156,560
Credit Risk and Non-Agency Securities
Trading securities pledged	$ 884,531	$ 974,372

XML

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Interest Income:
Agency Securities, net of amortization of premium and fees		$ 52,253	$ 44,081
Total Interest Income		68,169	58,582
Interest expense- repurchase agreements		(32,018)	(18,064)
Net Interest Income		36,151	40,518
Other Income (Loss):
Realized loss on sale of Agency Securities (reclassified from Other comprehensive income (loss))		(32,603)	(11,154)
Other than temporary impairment of Agency Securities (reclassified from Other comprehensive income)		(12,090)	0
Subtotal		(40,536)	9,387
Realized loss on derivatives	[1]	(38,604)	(12,249)
Unrealized gain on derivatives		97,201	23,768
Subtotal		58,597	11,519
Total Other Income		18,061	20,906
Expenses:
Management fees		6,801	6,521
Professional fees		1,172	880
Insurance		165	277
Compensation		977	477
Other		350	551
Total Expenses		9,465	8,706
Net Income		44,747	52,718
Dividends on preferred stock		(4,253)	(3,905)
Net Income available to common stockholders		$ 40,494	$ 48,813
Net income (loss) related to common stockholders
Basic (in dollars per share)		$ 0.97	$ 1.33
Diluted (in dollars per share)		0.96	1.33
Dividends declared per common share (in dollars per share)		$ 0.57	$ 0.57
Weighted average common shares outstanding:
Basic (in shares)		41,887	36,724
Diluted (in shares)		42,331	36,748
Credit Risk and Non-Agency Securities
Interest Income:
Trading securities, interest income		$ 14,006	$ 13,898
Other Income (Loss):
Gain (loss) on securities		1,283	24,284
Interest-Only Securities
Interest Income:
Trading securities, interest income		442	603
Other Income (Loss):
Gain (loss) on securities		298	(3,743)
US Treasury Securities
Interest Income:
Trading securities, interest income		844	0
Other Income (Loss):
Gain (loss) on securities		2,576	0
Subordinated Loans
Interest Income:
Trading securities, interest income		$ 624	$ 0

[1] Interest expense related to our interest rate swap contracts is recorded as realized loss on derivatives on the consolidated statements of operations. For additional information, see financial statement Note 10.

XML

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net Income	$ 44,747	$ 52,718
Other comprehensive income (loss):
Reclassification adjustment for realized loss on sale of available for sale Agency Securities	32,603	11,154
Reclassification adjustment for other than temporary impairment of available for sale Agency Securities	12,090	0
Net unrealized gain (loss) on available for sale Agency Securities	(145,410)	6,114
Other comprehensive income (loss)	(100,717)	17,268
Comprehensive Income (Loss)	$ (55,970)	$ 69,986

XML

Condensed Consolidated Statement of Stockholders' Equity - 3 months ended Mar. 31, 2018 - USD ($) shares in Thousands, $ in Thousands	Total	Series A Preferred Stock	Series B Preferred Stock	Preferred Stock Series A Preferred Stock	Preferred Stock Series B Preferred Stock	Additional Paid-in Capital	Additional Paid-in Capital Series A Preferred Stock	Additional Paid-in Capital Series B Preferred Stock	Additional Paid-in Capital Common Stock	Common Stock	Accumulated Deficit	Accumulated Deficit Series A Preferred Stock	Accumulated Deficit Series B Preferred Stock	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2017				2,181	6,262					41,877
Beginning balance at Dec. 31, 2017	$ 1,326,051			$ 2	$ 6	$ 2,709,335	$ 53,172	$ 151,515	$ 2,504,648	$ 42	$ (1,363,223)			$ (20,111)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Preferred dividends		$ (1,124)	$ (3,129)									$ (1,124)	$ (3,129)
Common stock dividends	(24,138)										(24,138)
Preferred stock issued (in shares)					107
Preferred stock issued	2,632					2,632		2,632
Stock based compensation, net of withholding requirements (in shares)										25
Stock based compensation, net of withholding requirements	644					644			644
Net Income	44,747										44,747
Other comprehensive loss	(100,717)													(100,717)
Ending balance (in shares) at Mar. 31, 2018				2,181	6,369					41,902
Ending balance at Mar. 31, 2018	$ 1,244,966			$ 2	$ 6	$ 2,712,611	$ 53,172	$ 154,147	$ 2,505,292	$ 42	$ (1,346,867)			$ (120,828)

XML

Condensed Consolidated Statement of Stockholders' Equity (Parenthetical)	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Series A Preferred Stock
Preferred stock, dividend rate	8.25%	8.25%
Series B Preferred Stock
Preferred stock, dividend rate	7.875%	7.875%

XML

Condensed Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash Flows From Operating Activities:
Net Income	$ 44,747,000	$ 52,718,000
Adjustments to reconcile net income to net cash used in operating activities:
Net amortization of premiums on investments	9,794,000	12,633,000
Accretion of net discount on Credit Risk and Non-Agency Securities	(1,006,000)	(848,000)
Realized loss on sale of Agency Securities	32,603,000	11,154,000
Other than temporary impairment of Agency Securities	12,090,000	0
Stock based compensation	644,000	200,000
Changes in operating assets and liabilities:
(Increase) decrease in accrued interest receivable	1,971,000	(29,000)
(Increase) decrease in prepaid and other assets	56,000	(371,000)
Change in derivatives, at fair value	(99,558,000)	(57,159,000)
Decrease in accrued interest payable- repurchase agreements	(1,178,000)	(2,868,000)
Increase (decrease) in accounts payable and other accrued expenses	2,270,000	(1,239,000)
Net cash used in operating activities	(607,000)	(5,039,000)
Cash Flows From Investing Activities:
Purchases of Agency Securities	0	(1,408,177,000)
Principal repayments of Agency Securities	167,649,000	208,031,000
Principal repayments of Credit Risk and Non-Agency Securities	9,168,000	16,088,000
Proceeds from sales of Agency Securities	1,068,996,000	1,387,366,000
Increase in cash collateral	102,140,000	61,556,000
Net cash provided by investing activities	679,833,000	256,640,000
Cash Flows From Financing Activities:
Proceeds from repurchase agreements	35,593,550,000	35,245,549,000
Principal repayments on repurchase agreements	(36,295,752,000)	(35,549,608,000)
Common stock dividends paid	(24,138,000)	(20,951,000)
Net cash used in financing activities	(727,961,000)	(328,915,000)
Net decrease in cash	(48,735,000)	(77,314,000)
Cash - beginning of period	265,232,000	271,773,000
Cash - end of period	216,497,000	194,459,000
Supplemental Disclosure:
Cash paid during the period for interest	53,651,000	36,117,000
Non-Cash Investing Activities:
Receivable for unsettled sales	68,796,000	649,323,000
Payable for unsettled purchases	227,409,000	467,562,000
Net unrealized gain (loss) on available for sale Agency Securities	(145,410,000)	6,114,000
Series B Preferred Stock
Cash Flows From Financing Activities:
Issuance of Preferred stock, net of expenses	2,632,000	0
Preferred stock dividends paid	(3,129,000)	(2,781,000)
Series A Preferred Stock
Cash Flows From Financing Activities:
Preferred stock dividends paid	(1,124,000)	(1,124,000)
Interest-Only Securities
Adjustments to reconcile net income to net cash used in operating activities:
Net amortization of premiums on investments	1,117,000	1,311,000
Gain (loss) on securities	(298,000)	3,743,000
Credit Risk and Non-Agency Securities
Adjustments to reconcile net income to net cash used in operating activities:
Gain (loss) on securities	(1,283,000)	(24,284,000)
Cash Flows From Investing Activities:
Purchases of Securities	0	(8,224,000)
US Treasury Securities
Adjustments to reconcile net income to net cash used in operating activities:
Gain (loss) on securities	(2,576,000)	0
Cash Flows From Investing Activities:
Purchases of Securities	$ (668,120,000)	$ 0

XML

Organization and Nature of Business Operations

3 Months Ended

Mar. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Nature of Business Operations

Note 1 -Organization and Nature of Business Operations

References to “we,” “us,” “our,” or the “Company” are to ARMOUR Residential REIT, Inc. (“ARMOUR”) and its subsidiaries. References to “ACM” are to ARMOUR Capital Management LP, a Delaware limited partnership.

ARMOUR is an externally managed Maryland corporation incorporated in 2008. The Company is managed by ACM, an investment advisor registered with the Securities and Exchange Commission (the “SEC”), (see Note 11 -Commitments and Contingencies and Note 16 -Related Party Transactions for additional discussion). We have elected to be taxed as a real estate investment trust (“REIT”) under the Internal Revenue Code, as amended (the "Code”). Our qualification as a REIT depends on our ability to meet, on a continuing basis, various complex requirements under the Code relating to, among other things, the sources of our gross income, the composition and values of our assets, our distribution levels and the concentration of ownership of our capital stock. We believe that we are organized in conformity with the requirements for qualification as a REIT under the Code and our manner of operations enables us to meet the requirements for taxation as a REIT for federal income tax purposes. As a REIT, we will generally not be subject to federal income tax on the REIT taxable income that we currently distribute to our stockholders. If we fail to qualify as a REIT in any taxable year and do not qualify for certain statutory relief provisions, we will be subject to federal income tax at regular corporate rates. Even if we qualify as a REIT for federal income tax purposes, we may still be subject to some federal, state and local taxes on our income.

We invest in residential mortgage backed securities issued or guaranteed by a United States (“U.S.”) Government-sponsored entity (“GSE”), such as the Federal National Mortgage Association (Fannie Mae), the Federal Home Loan Mortgage Corporation (Freddie Mac), or a government agency such as Government National Mortgage Administration (Ginnie Mae) (collectively, “Agency Securities”). We also invest in Interest-Only Securities, which are the interest portion of Agency Securities, that is separated and sold individually from the principal portion of the same payment. Other securities backed by residential mortgages in which we invest, for which the payment of principal and interest is not guaranteed by a GSE or government agency (collectively, “Credit Risk and Non-Agency Securities” and together with Agency Securities and Interest-Only Securities, “MBS”), may benefit from credit enhancement derived from structural elements such as subordination, over collateralization or insurance.

Our securities portfolio consists primarily of Agency Securities backed by fixed rate home loans. From time to time, a portion of our assets may be invested in Agency Securities backed by hybrid adjustable rate and adjustable rate home loans as well as unsecured notes and bonds issued by GSEs, U.S. Treasury Securities and money market instruments, subject to certain income tests we must satisfy for our qualification as a REIT.

XML

Basis of Presentation

3 Months Ended

Mar. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Note 2 -Basis of Presentation and Consolidation

The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X promulgated by the SEC. Accordingly, the condensed financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2018 are not necessarily indicative of the results that may be expected for the calendar year ending December 31, 2018. These unaudited consolidated financial statements should be read in conjunction with the audited financial statements and notes thereto included in our annual report on Form 10-K for the year ended December 31, 2017.

The unaudited consolidated financial statements include the accounts of ARMOUR Residential REIT, Inc. and its subsidiaries. All intercompany accounts and transactions have been eliminated. The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant estimates affecting the accompanying condensed consolidated financial statements include the valuation of MBS (as defined below), including an assessment of whether other-than-temporary impairment (“OTTI”) exists, and derivative instruments.

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Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2018

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Note 3 -Summary of Significant Accounting Policies

Cash

Cash includes cash on deposit with financial institutions. We may maintain deposits in federally insured financial institutions in excess of federally insured limits. However, management believes we are not exposed to significant credit risk due to the financial position and creditworthiness of the depository institutions in which those deposits are held.

Cash Collateral Posted To/By Counterparties

Cash collateral posted to/by counterparties represents cash posted by us to counterparties or posted by counterparties to us as collateral. Cash collateral posted to/by counterparties may include collateral for interest rate swap contracts (including swaptions and basis swap contracts),and repurchase agreements on our MBS and our Agency Securities purchased or sold on a to-be-announced basis (“TBA Agency Securities”).

Investments in Securities, at Fair Value

We generally intend to hold most of our securities for extended periods of time. We may, from time to time, sell any of our securities as part of the overall management of our securities portfolio. Management determines the appropriate classifications of the securities at the time they are acquired and evaluates the appropriateness of such classifications at each balance sheet date. Purchases and sales of our securities are recorded on the trade date.

Agency Securities - At March 31, 2018 and December 31, 2017, all of our Agency Securities were classified as available for sale securities. Agency Securities classified as available for sale are reported at their estimated fair values with unrealized gains and losses excluded from earnings and reported as part of the consolidated statements of comprehensive income (loss).

Credit Risk and Non-AgencySecurities- At March 31, 2018 and December 31, 2017, all of our Credit Risk and Non-Agency Securities were classified as trading securities. Credit Risk and Non-Agency Securities classified as trading are reported at their estimated fair values with unrealized gains and losses included in Other Income (Loss) as a component of the consolidated statements of operations.

Interest-Only Securities - At March 31, 2018 and December 31, 2017, all of our Interest-Only Securities were classified as trading securities. Interest-Only Securities represent the right to receive a specified proportion of the contractual interest flows of specific Agency MBS. Interest-Only Securities classified as trading are reported at their estimated fair values with unrealized gains and losses included in Other Income (Loss) as a component of the consolidated statements of operations.

U.S. Treasury Securities - At March 31, 2018, all of our U.S. Treasury Securities were classified as trading securities. U.S. Treasury Securities classified as trading are reported at their estimated fair values with unrealized gains and losses included in Other Income (Loss) as a component of the consolidated statements of operations. We did not have any U.S. Treasury Securities at December 31, 2017.

Receivables and Payables for Unsettled Sales and Purchases

We account for purchases and sales of securities on the trade date, including purchases and sales for forward settlement. Receivables and payables for unsettled trades represent the agreed trade price multiplied by the outstanding balance of the securities at the balance sheet date.

Accrued Interest Receivable and Payable

Accrued interest receivable includes interest accrued between payment dates on securities. Accrued interest payable includes interest payable on our repurchase agreements and may, at certain times, contain interest payable on U.S. Treasury Securities sold short.

Repurchase Agreements

We finance the acquisition of our MBS through the use of repurchase agreements. Our repurchase agreements are secured by our MBS and bear interest rates that have historically moved in close relationship to the Federal Funds Rate and the London Interbank Offered Rate (“LIBOR”). Under these repurchase agreements, we sell MBS to a lender and agree to repurchase the same MBS in the future for a price that is higher than the original sales price. The difference between the sales price that we receive and the repurchase price that we pay represents interest paid to the lender. A repurchase agreement operates as a financing arrangement under which we pledge our MBS as collateral to secure a loan which is equal in value to a specified percentage of the estimated fair value of the pledged collateral. We retain beneficial ownership of the pledged collateral. At the maturity of a repurchase agreement, we are required to repay the loan and concurrently receive back our pledged collateral from the lender or, with the consent of the lender, we may renew such agreement at the then prevailing interest rate. The repurchase agreements may require us to pledge additional assets to the lender in the event the estimated fair value of the existing pledged collateral declines.

In addition to the repurchase agreement financing discussed above, at certain times we have entered into reverse repurchase agreements with certain of our repurchase agreement counterparties. Under a typical reverse repurchase agreement, we purchase U.S. Treasury Securities from a borrower in exchange for cash and agree to sell the same securities in the future in exchange for a price that is higher than the original purchase price. The difference between the purchase price originally paid and the sale price represents interest received from the borrower. Reverse repurchase agreement receivables and repurchase agreement liabilities are presented net when they meet certain criteria, including being with the same counterparty, being governed by the same master repurchase agreement (“MRA”), settlement through the same brokerage or clearing account and maturing on the same day. We did not have any reverse repurchase agreements outstanding at March 31, 2018 and December 31, 2017.

Derivatives, at Fair Value

We recognize all derivatives as either assets or liabilities at fair value on our consolidated balance sheets. All changes in the fair values of our derivatives are reflected in our consolidated statements of operations. We designate derivatives as hedges for tax purposes and any unrealized derivative gains or losses would not affect our distributable net taxable income. These transactions include interest rate swap contracts, interest rate swaptions and basis swap contracts. We also may utilize forward contracts for the purchase or sale of TBA Agency Securities. We account for TBA Agency Securities as derivative instruments if it is reasonably possible that we will not take or make physical delivery of the Agency Security upon settlement of the contract. We account for TBA dollar roll transactions as a series of derivative transactions.

We may also purchase and sell TBA Agency Securities as a means of investing in and financing Agency Securities (thereby increasing our “at risk” leverage) or as a means of disposing of or reducing our exposure to Agency Securities (thereby reducing our “at risk” leverage). Pursuant to TBA Agency Securities, we agree to purchase or sell, for future delivery, Agency Securities with certain principal and interest terms and certain types of collateral, but the particular Agency Securities to be delivered are not identified until shortly before the TBA settlement date. We may also choose, prior to settlement, to move the settlement of these securities out to a later date by entering into an offsetting short or long position (referred to as a “pair off”), net settling the paired off positions for cash, and simultaneously purchasing or selling a similar TBA Agency Security for a later settlement date. This transaction is commonly referred to as a “dollar roll.” When it is reasonably possible that we will pair off a TBA Agency Security, we account for that contract as a derivative.

Revenue Recognition

Agency Securities - Interest income is earned and recognized on Agency Securities based on their unpaid principal amounts and their contractual terms. Recognition of interest income commences on the settlement date of the purchase transaction and continues through the settlement date of the sale transaction. Premiums and discounts associated with the purchase of Multi-Family MBS, which are generally not subject to prepayment, are amortized or accreted into interest income over the contractual lives of the securities using a level yield method. Premiums and discounts associated with the purchase of other Agency Securities are amortized or accreted into interest income over the actual lives of the securities, reflecting actual prepayments as they occur.

•Fair Value of Agency Securities: We invest in Agency Securities representing interests in or obligations backed by pools of fixed rate, hybrid adjustable rate and adjustable rate mortgage loans. GAAP requires us to classify our investments as either trading, available for sale or held to maturity securities. Management determines the appropriate classifications of the securities at the time they are acquired and evaluates the appropriateness of such classifications at each balance sheet date. We currently classify all of our Agency Securities as available for sale. Agency Securities classified as available for sale are reported at their estimated fair values with unrealized gains and losses excluded from earnings and reported as part of the statements of comprehensive income (loss).

•Agency Security purchase and sale transactions (including purchase of TBA Agency Securities): Purchases and Sales are recorded on the trade date to the extent it is probable that we will take or make timely physical delivery of the related securities. Gains or losses realized from the sale of securities are included in income and are determined using the specific identification method.

•Impairment of Assets: We evaluate Agency Securities for other than temporary impairment at least on a quarterly basis and more frequently when economic or market concerns warrant such evaluation. We consider an impairment to be other than temporary if we (1) have the intent to sell the Agency Securities, (2) believe it is more likely than not that we will be required to sell the securities before recovery (for example, because of liquidity requirements or contractual obligations) or (3) a credit loss exists. Impairment losses recognized establish a new cost basis for the related Agency Securities.

Credit Risk and Non-Agency Securities and Interest-Only Securities - Interest income on Credit Risk and Non-Agency Securities and Interest-Only Securities is recognized using the effective yield method over the life of the securities based on the future cash flows expected to be received. Future cash flow projections and related effective yields are determined for each security and updated quarterly. Other than temporary impairments, which establish a new cost basis in the security for purposes of calculating effective yields, are recognized when the fair value of a security is less than its cost basis and there has been an adverse change in the future cash flows expected to be received. Other changes in future cash flows expected to be received are recognized prospectively over the remaining life of the security.

U.S. Treasury Securities - Interest income on U.S. Treasury Securities is recognized based on their unpaid principal amounts and their contractual terms. Recognition of interest income commences on the settlement date of the purchase transaction and continues through the settlement date of the sale transaction.

Comprehensive Income (Loss)

Comprehensive income (loss) refers to changes in equity during a period from transactions and other events and circumstances from non-owner sources. It includes all changes in equity during a period, except those resulting from investments by owners and distributions to owners.

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Recent Accounting Pronouncements

3 Months Ended

Mar. 31, 2018

Accounting Changes and Error Corrections [Abstract]

Recent Accounting Pronouncements

Note 4 -Recent Accounting Pronouncements

We consider the applicability and impact of all Accounting Standards Updates issued by the Financial Accounting Standards Board. Those not listed below were deemed to be either not applicable, are not expected to have a significant impact on our consolidated financial statements when adopted, or did not have a significant impact on our consolidated financial statements upon adoption.

In August 2017, the Financial Accounting Standards Board issued ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The standard amends the hedge accounting recognition and presentation requirements in ASC 815. The standard is effective for fiscal years beginning after December 15, 2018 and interim periods therein, however, early adoption is permitted upon its issuance. The Company is currently assessing the impact of the standard and whether it may apply hedge accounting in the future.

In July 2016, the Financial Accounting Standards Board issued ASU 2016-13, Financial Instruments–Credit Losses (Topic 326). The standard introduces a new model for recognizing credit losses on financial instruments based on an estimate of current expected credit losses. The standard will apply to (1) loans, accounts receivable, trade receivables, and other financial assets measured at amortized cost, (2) loan commitments and certain other off–balance sheet credit exposures, (3) debt securities and other financial assets measured at fair value through other comprehensive income, and (4) beneficial interests in securitized financial assets. The standard is effective for fiscal years beginning after December 15, 2019. The Company is assessing the impact of this standard but does not expect it to have significant impact on the consolidated financial statements. However, the impact on the consolidated financial statements will depend on the debt securities held by the Company on the date of the adoption.

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Fair Value of Financial Instruments

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

Note 5 -Fair Value of Financial Instruments

Our valuation techniques for financial instruments use observable and unobservable inputs. Observable inputs reflect readily obtainable data from third party sources, while unobservable inputs reflect management’s market assumptions. The Accounting Standards Codification Topic No. 820, “Fair Value Measurement,” classifies these inputs into the following hierarchy:

Level 1Inputs - Quoted prices for identical instruments in active markets.

Level 2Inputs - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.

Level 3Inputs - Prices determined using significant unobservable inputs. Unobservable inputs may be used in situations where quoted prices or observable inputs are unavailable (for example, when there is little or no market activity for an investment at the end of the period). Unobservable inputs reflect management’s assumptions about the factors that market participants would use in pricing an asset or liability, and would be based on the best information available.

At the beginning of each quarter, we asses the assets and liabilities that are measured at fair value on a recurring basis to determine if any transfers between levels in the fair value hierarchy are needed.

The following describes the valuation methodologies used for our assets and liabilities measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy. Any transfers between levels are assumed to occur at the beginning of the reporting period.

Cash - Cash includes cash on deposit with financial institutions. The carrying amount of cash is deemed to be its fair value and is classified as Level 1. Cash balances posted by us to counterparties or posted by counterparties to us as collateral are classified as Level 2 because they are integrally related to the Company's repurchase financing and interest rate swap agreements, which are classified as Level 2.

Agency Securities - Fair value for the Agency Securities in our securities portfolio is based on obtaining a valuation for each Agency Security from third party pricing services and/or dealer quotes. The third party pricing services use common market pricing methods that may include pricing models that may incorporate such factors as coupons, prepayment speeds, spread to the Treasury curves and interest rate swap curves, duration, periodic and life caps and credit enhancement. If the fair value of an Agency Security is not available from the third party pricing services or such data appears unreliable, we obtain pricing indications from up to three dealers who make markets in similar Agency Securities. Management reviews pricing used to ensure that current market conditions are properly reflected. This review includes, but is not limited to, comparisons of similar market transactions or alternative third party pricing services, dealer pricing indications and comparisons to a third party pricing model. Fair values obtained from the third party pricing services for similar instruments are classified as Level 2 securities if the inputs to the pricing models used are consistent with the Level 2 definition. If quoted prices for a security are not reasonably available from the third party pricing service, but dealer pricing indications are, the security will be classified as a Level 2 security. If neither is available, management will determine the fair value based on characteristics of the security that we receive from the issuer and based on available market information and classify it as a Level 3 security. At March 31, 2018 and December 31, 2017, all of our Agency Security fair values are classified as Level 2 based on the inputs used by our third party pricing services and dealer quotes.

Credit Risk and Non-Agency Securities - The fair value for the Credit Risk and Non-Agency Securities in our securities portfolio is based on obtaining a valuation for each Credit Risk and Non-Agency Security from third party pricing services and/or dealer quotes. The third party pricing services incorporate such factors as collateral type, bond structure and priority of payments, coupons, prepayment speeds, defaults, delinquencies and severities. If the fair value of a Credit Risk and Non-Agency Security is not available from the third party pricing services or such data appears unreliable, we obtain pricing indications from up to three dealers who make markets in similar Credit Risk and Non-Agency Securities. Management reviews pricing used to ensure that current market conditions are properly reflected. This review includes, but is not limited to, comparisons of similar market transactions or alternative third party pricing services, dealer pricing indications and comparisons to fair value determined using a third party pricing model. Fair values obtained from the third party pricing services for similar instruments are classified as Level 2 securities if the inputs to the pricing models used are consistent with the Level 2 definition. If quoted prices for a security are not reasonably available from the third party pricing service, but dealer pricing indications are, the security will be classified as a Level 2 security. If neither is available, management will determine the fair value based on characteristics of the security that we receive from the issuer and based on available market information and classify it as a Level 3 security. At March 31, 2018 and December 31, 2017, all of our Credit Risk and Non-Agency Securities are classified as Level 2 based on the inputs used by our third party pricing services and dealer quotes.

Interest-Only Securities - The fair value for the Interest-Only Securities in our securities portfolio is based on obtaining a valuation for each Interest-Only Security from third party pricing services and/or dealer quotes. The third party pricing services use common market pricing methods that may include pricing models consistent with those models used to price Agency Securities underlying the Interest-Only Securities that may incorporate such factors as coupons, prepayment speeds, spread to the Treasury curves and interest rate swap curves, duration, periodic and life caps and credit enhancement. If the fair value of an Interest-Only Security is not available from the third party pricing services or such data appears unreliable, we obtain pricing indications from up to three dealers who make markets in similar Interest-Only Securities. Management reviews pricing used to ensure that current market conditions are properly reflected. This review includes, but is not limited to, comparisons of similar market transactions or alternative third party pricing services, dealer pricing indications and comparisons to a third party pricing model. Fair values obtained from the third party pricing services for similar instruments are classified as Level 2 securities if the inputs to the pricing models used are consistent with the Level 2 definition. If quoted prices for a security are not reasonably available from the third party pricing service, but dealer pricing indications are, the security will be classified as a Level 2 security. If neither is available, management will determine the fair value based on characteristics of the security that we receive from the issuer and based on available market information and classify it as a Level 3 security. At March 31, 2018 and December 31, 2017, all of our Interest-Only Security fair values are classified as Level 2 based on the inputs used by our third party pricing services and dealer quotes.

U.S. Treasury Securities- Fair value for the U.S. Treasury Securities in our securities portfolio is based on obtaining a valuation for each U.S. Treasury Securities from third party pricing services and/or dealer quotes. At March 31, 2018, all of our U.S. Treasury Securities fair values are classified as Level 1, as quoted unadjusted prices are available in active markets for identical assets.

Receivables and Payables for Unsettled Sales and Purchases - The carrying amount is generally deemed to be fair value because of the relatively short time to settlement. Such receivables and payables are classified as Level 2 because they are effectively secured by the related securities and could potentially be subject to counterparty credit considerations.

Repurchase Agreements - The fair value of repurchase agreements reflects the present value of the contractual cash flows discounted at the estimated LIBOR based market interest rates at the valuation date for repurchase agreements with a term equivalent to the remaining term to interest rate repricing, which may be at maturity, of our repurchase agreements. The fair value of the repurchase agreements approximates their carrying amount due to the short-term nature of these financial instruments. Our repurchase agreements are classified as Level 2.

Derivative Transactions- The fair values of our interest rate swap contracts, interest rate swaptions and basis swaps are valued using information provided by third party pricing services that incorporate common market pricing methods that may include current interest rate curves, forward interest rate curves and market spreads to interest rate curves. We estimate the fair value of TBA Agency Securities based on similar methods used to value our Agency Securities. Management compares the pricing information received to dealer quotes to ensure that the current market conditions are properly reflected. The fair values of our interest rate swap contracts, interest rate swaptions, basis swap contracts and TBA Agency Securities are classified as Level 2.

The following tables provide a summary of our assets and liabilities that are measured at fair value on a recurring basis at March 31, 2018 and December 31, 2017.

	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Balance at March 31, 2018
Assets at Fair Value:
Agency Securities	$	—	$	6,245,432	$	—	$	6,245,432
Credit Risk and Non-Agency Securities	$	—	$	968,950	$	—	$	968,950
Interest-Only Securities	$	—	$	24,933	$	—	$	24,933
U.S. Treasury Securities	$	670,696	$	—	$	—	$	670,696
Derivatives	$	—	$	135,703	$	—	$	135,703
Liabilities at Fair Value:
Derivatives	$	—	$	6,882	$	—	$	6,882

There were no transfers of assets or liabilities between the levels of the fair value hierarchy during the three months ending March 31, 2018.

	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Balance at December 31, 2017
Assets at Fair Value:
Agency Securities	$	—	$	7,478,966	$	—	$	7,478,966
Credit Risk and Non-Agency Securities	$	—	$	975,829	$	—	$	975,829
Interest-Only Securities	$	—	$	25,752	$	—	$	25,752
Derivatives	$	—	$	37,211	$	—	$	37,211
Liabilities at Fair Value:
Derivatives	$	—	$	7,948	$	—	$	7,948

The following tables provide a summary of the carrying values and fair values of our financial assets and liabilities not carried at fair value but for which fair value is required to be disclosed at March 31, 2018 and December 31, 2017.

March 31, 2018					Fair Value Measurements using:
	Carrying Value		Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial Assets:
Cash	$	216,497	$	216,497	$	216,497	$	—	$	—
Cash collateral posted to counterparties	$	13,150	$	13,150	$	—	$	13,150	$	—
Receivable for unsettled sales	$	68,796	$	68,796	$	—	$	68,796	$	—
Accrued interest receivable	$	20,492	$	20,492	$	—	$	20,492	$	—
Subordinated loans due from BUCKLER Securities LLC	$	105,000	$	105,000	$	—	$	105,000	$	—
Financial Liabilities:
Repurchase agreements	$	6,853,715	$	6,853,715	$	—	$	6,853,715	$	—
Cash collateral posted by counterparties	$	127,721	$	127,721	$	—	$	127,721	$	—
Payable for unsettled purchases	$	227,409	$	227,409	$	—	$	227,409	$	—
Accrued interest payable- repurchase agreements	$	5,274	$	5,274	$	—	$	5,274	$	—

December 31, 2017					Fair Value Measurements using:
	Carrying Value		Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial Assets:
Cash	$	265,232	$	265,232	$	265,232	$	—	$	—
Cash collateral posted to counterparties	$	17,162	$	17,162	$	—	$	17,162	$	—
Accrued interest receivable	$	22,165	$	22,165	$	—	$	22,165	$	—
Subordinated loans due from BUCKLER Securities LLC	$	105,000	105,000		$	—	$	105,000	$	—
Financial Liabilities:
Repurchase agreements	$	7,555,917	$	7,555,917	$	—	$	7,555,917	$	—
Cash collateral posted by counterparties	$	29,593	$	29,593	$	—	$	29,593	$	—
Accrued interest payable- repurchase agreements	$	6,452	$	6,452	$	—	$	6,452	$	—

The following table provides a summary of the changes in Level 3 assets measured at fair value on a recurring basis at March 31, 2018 and March 31, 2017.

	For the Three Months Ended March 31,
Credit Risk and Non-Agency Securities	2018		2017
Balance, beginning of period	$	—	$	1,052,170
Purchases of Credit Risk and Non-Agency Securities, at cost	—		8,224
Principal repayments of Credit Risk and Non-Agency Securities	—		(16,088		)
Gain on Credit Risk and Non-Agency Securities	—		24,284
Accretion of net discount on Credit Risk and Non-Agency Securities	—		848
Balance, end of period	$	—	$	1,069,438
Gain on Credit Risk and Non-Agency Securities	$	—	$	24,284

The significant unobservable inputs used in the fair value measurement of our Level 3 Credit Risk and Non-Agency Securities at March 31, 2017, included assumptions for underlying loan collateral, cumulative default rates and loss severities in the event of default, as well as discount rates. At the beginning of the third quarter 2017, we determined that third party pricing services and or/dealer quotes available for Credit Risk and Non-Agency Securities meet the criteria for Level 2 classification. Fair values obtained from third party pricing services for similar instruments are classified as Level 2 securities, if the inputs to the pricing model used is consistent with the Level 2 definition. We transferred the securities to Level 2 from Level 3 at the commencement of the third quarter in 2017.

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Agency Securities

3 Months Ended

Mar. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Agency Securities

Note 6 -Agency Securities

At March 31, 2018 and December 31, 2017, investments in Agency Securities accounted for 79.0% and 88.2% of our securities portfolio.

We evaluated our Agency Securities with unrealized losses at March 31, 2018, March 31, 2017 and December 31, 2017, to determine whether there was an other than temporary impairment. All of our Agency Securities are issued and guaranteed by GSEs or Ginnie Mae. The GSEs have a long term credit rating of AA+. At those dates, we also considered whether we intended to sell Agency Securities and whether it was more likely than not that we could meet our liquidity requirements and contractual obligations without selling Agency Securities.

Results of this evaluation for the three months ending March 31, 2018 - At March 31, 2018, we recognized additional losses on Agency Securities, previously identified during 2017, totaling $12,090 for the three months ended March 31, 2018 in our consolidated financial statements of operations. The aggregate fair value of the remaining identified low yielding Agency Securities is $681,827 at March 31, 2018. We determined that there was no other than temporary impairment of our remaining Agency Securities as of March 31, 2018.

Results of this evaluation for the period ending March 31, 2017 - No other than temporary impairment was recognized for the three months ended March 31, 2017 because we determined that we 1) did not have the intent to sell the Agency Securities in an unrealized loss position, 2) did not believe it more likely than not that we were required to sell the securities before recovery (for example, because of liquidity requirements or contractual obligations), and/or 3) determined that a credit loss did not exist.

Results of this evaluation for the year ended December 31, 2017 - During the second quarter of 2017, we identified certain low yielding Agency Securities that we replaced with securities having more attractive returns as market conditions permit. Accordingly, we recognized losses totaling $13,707 in our consolidated statements of operations for the year ended December 31, 2017, thereby establishing a new cost basis for those Agency Securities with an aggregate fair value of $795,724 as of December 31, 2017. We determined that there was no other than temporary impairment of our remaining Agency Securities as of December 31, 2017.

At March 31, 2018, we had the following Agency Securities in an unrealized gain or loss position as presented below. The components of the carrying value of our Agency Securities at March 31, 2018 are also presented below. Our Agency Securities had a weighted average coupon of 3.71% at March 31, 2018.

March 31, 2018	Amortized Cost		Gross Unrealized Loss			Gross Unrealized Gain		Fair Value		Percent of Total
Fannie Mae
ARMs & Hybrids	$	26,277	$	(304	)	$	74	$	26,047	0.42	%
Multi-Family MBS	1,482,115		(19,283		)	1,235		1,464,067		23.44
10 Year Fixed	28,927		(403		)	90		28,614		0.46
15 Year Fixed	939,147		(11,784		)	—		927,363		14.85
20 Year Fixed	28,155		(1,016		)	—		27,139		0.43
25 Year Fixed	25,185		(669		)	—		24,516		0.39
30 Year Fixed	2,429,537		(59,659		)	281		2,370,159		37.95
Total Fannie Mae	$	4,959,343	$	(93,118	)	$	1,680	$	4,867,905	77.94	%
Freddie Mac
10 Year Fixed	32,886		(262		)	168		32,792		0.53
15 Year Fixed	337,047		(1,391		)	13		335,669		5.37
25 Year Fixed	40,390		(1,770		)	—		38,620		0.62
30 Year Fixed	960,577		(25,613		)	—		934,964		14.97
Total Freddie Mac	$	1,370,900	$	(29,036	)	$	181	$	1,342,045	21.49	%
Ginnie Mae
ARMs & Hybrids	35,762		(538		)	1		35,225		0.57
10 Year Fixed	255		—			2		257		0.00
Total Ginnie Mae	$	36,017	$	(538	)	$	3	$	35,482	0.57	%
Total Agency Securities	$	6,366,260	$	(122,692	)	$	1,864	$	6,245,432	100.00	%

At December 31, 2017, we had the following securities in an unrealized gain or loss position as presented below. The components of the carrying value of our Agency Securities at December 31, 2017 are also presented below. Our Agency Securities had a weighted average coupon of 3.68% at December 31, 2017.

December 31, 2017	Amortized Cost		Gross Unrealized Loss			Gross Unrealized Gain		Fair Value		Percent of Total
Fannie Mae
ARMs & Hybrids	$	28,199	$	(229	)	$	112	$	28,082	0.38	%
Multi-Family MBS	1,799,737		(5,132		)	16,950		1,811,555		24.22
10 Year Fixed	60,634		(347		)	137		60,424		0.81
15 Year Fixed	1,028,797		(4,955		)	625		1,024,467		13.70
20 Year Fixed	29,832		(621		)	—		29,211		0.39
25 Year Fixed	9,367		(140		)	—		9,227		0.12
30 Year Fixed	2,938,655		(18,910		)	431		2,920,176		39.05
Total Fannie Mae	$	5,895,221	$	(30,334	)	$	18,255	$	5,883,142	78.67	%
Freddie Mac
10 Year Fixed	37,254		(158		)	228		37,324		0.50
15 Year Fixed	354,878		(211		)	787		355,454		4.75
25 Year Fixed	41,383		(857		)	—		40,526		0.54
30 Year Fixed	1,131,584		(7,300		)	—		1,124,284		15.03
Total Freddie Mac	$	1,565,099	$	(8,526	)	$	1,015	$	1,557,588	20.82	%
Ginnie Mae
ARMs & Hybrids	38,494		(532		)	4		37,966		0.51
10 Year Fixed	263		—			7		270		0.00
Total Ginnie Mae	$	38,757	$	(532	)	$	11	$	38,236	0.51	%
Total Agency Securities	$	7,499,077	$	(39,392	)	$	19,281	$	7,478,966	100.00	%

Recognition of interest income commences on the settlement date of the purchase transaction and continues through the settlement date of the sale transaction. At March 31, 2018, we had investment related receivables of $68,796 with respect to unsettled sales and investment related payables of $227,409 with respect to unsettled purchases. At December 31, 2017 we did not have any investment related receivables or payables with respect to unsettled sales and purchases of our Agency Securities.

Actual maturities of Agency Securities are generally shorter than stated contractual maturities because actual maturities of Agency Securities are affected by the contractual lives of the underlying mortgages, periodic payments of principal and prepayments of principal.

The following table summarizes the weighted average lives of our Agency Securities at March 31, 2018 and December 31, 2017.

	March 31, 2018				December 31, 2017
Weighted Average Life of all Agency Securities	Fair Value		Amortized Cost		Fair Value		Amortized Cost
Less than one year	$	—	$	—	$	—	$	—
Greater than or equal to one year and less than three years	41,918		41,986		29,126		29,269
Greater than or equal to three years and less than five years	1,133,824		1,144,807		1,353,036		1,353,998
Greater than or equal to five years	5,069,690		5,179,467		6,096,804		6,115,810
Total Agency Securities	$	6,245,432	$	6,366,260	$	7,478,966	$	7,499,077

We use a third party model to calculate the weighted average lives of our Agency Securities. Weighted average life is calculated based on expectations for estimated prepayments for the underlying mortgage loans of our Agency Securities. These estimated prepayments are based on assumptions such as interest rates, current and future home prices, housing policy and borrower incentives. The weighted average lives of our Agency Securities at March 31, 2018 and December 31, 2017 in the table above are based upon market factors, assumptions, models and estimates from the third party model and also incorporate management’s judgment and experience. The actual weighted average lives of our Agency Securities could be longer or shorter than estimated.

The following table presents the unrealized losses and estimated fair value of our Agency Securities by length of time that such securities have been in a continuous unrealized loss position at March 31, 2018 and December 31, 2017.

	Unrealized Loss Position For:
	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
March 31, 2018	$	4,208,407	$	(93,373	)	$	932,085	$	(29,319	)	$	5,140,492	$	(122,692	)
December 31, 2017	$	4,355,924	$	(28,906	)	$	733,637	$	(10,486	)	$	5,089,561	$	(39,392	)

During the three months ended March 31, 2018, we sold $1,137,792 (inclusive of $68,796 receivable for unsettled sales) of Agency Securities, which resulted in a realized loss of $(32,603). During the three months ended March 31, 2017, we sold $1,387,366 of Agency Securities, which resulted in a realized loss of $(11,154). Sales of Agency Securities are done to reposition our securities portfolio and to reach our target level of liquidity.

Note 7 -Credit Risk and Non-Agency Securities

At March 31, 2018 and December 31, 2017, investments in Credit Risk and Non-Agency Securities accounted for 12.2% and 11.5% of our securities portfolio.

The components of the carrying value of our Credit Risk and Non-Agency Securities at March 31, 2018 are presented in the table below. 

	Credit Risk and Non-Agency Securities
March 31, 2018	Fair Value		Amortized  Cost		Principal Amount		Weighted Average Coupon
Credit Risk Transfer	$	866,736	$	748,078	$	758,090	6.37%
Legacy Prime Fixed	16,267		14,766		18,585		6.03%
Legacy ALT-A Fixed	53,401		47,129		64,175		5.58%
Legacy Prime Hybrid	9,874		9,006		10,821		3.27%
Legacy ALT-A Hybrid	4,476		3,763		4,708		3.55%
New Issue Prime Fixed	18,196		17,689		18,716		3.69%
Total Credit Risk and Non-Agency Securities	$	968,950	$	840,431	$	875,095	6.22%

The components of the carrying value of our Credit Risk and Non-Agency Securities at December 31, 2017 are presented in the table below. 

	Credit Risk and Non-Agency Securities
December 31, 2017	Fair Value		Amortized  Cost		Principal Amount		Weighted Average Coupon
Credit Risk Transfer	$	870,494	$	753,422	$	764,172	6.05%
Legacy Prime Fixed	16,778		15,287		19,237		6.03%
Legacy ALT-A Fixed	54,727		48,516		65,920		5.85%
Legacy Prime Hybrid	10,469		9,517		11,452		3.17%
Legacy ALT-A Hybrid	4,660		3,895		4,901		3.47%
New Issue Prime Fixed	18,701		17,957		19,025		3.69%
Total Credit Risk and Non-Agency Securities	$	975,829	$	848,594	$	884,707	5.95%

Our Credit Risk Transfer securities are collaterized by residential mortgage loans meeting agency criteria. However, our securities principal and interest are not guaranteed by the agencies. Credit Risk Transfer securities include tranches issued since 2014. Our Legacy and New Issue Prime Fixed securities are collaterized by residential mortgage loans not guaranteed by any agency. Legacy Prime Fixed, Legacy Alt-A Fixed securities include tranches issued between 2005-2007. New Issue Prime Fixed securities include tranches issued in 2013.

The following table summarizes the weighted average lives of our Credit Risk and Non-Agency Securities at March 31, 2018 and December 31, 2017.

	March 31, 2018				December 31, 2017
Weighted Average Life of all Credit Risk and Non-Agency Securities	Fair Value		Amortized Cost		Fair Value		Amortized Cost
Less than one year	$	—	$	—	$	—	$	—
Greater than or equal to one year and less than three years	—		—		—		—
Greater than or equal to three years and less than five years	152,518		134,877		169,189		149,436
Greater than or equal to five years	816,432		705,554		806,640		699,158
Total Credit Risk and Non-Agency Securities	$	968,950	$	840,431	$	975,829	$	848,594

We use a third party model to calculate the weighted average lives of our Credit Risk and Non-Agency Securities. Weighted average life is calculated based on expectations for estimated prepayments for the underlying mortgage loans of our Credit Risk and Non-Agency Securities. These estimated prepayments are based on assumptions such as interest rates, current and future home prices, housing policy and borrower incentives. The weighted average lives of our Credit Risk and Non-Agency Securities at March 31, 2018 and December 31, 2017, in the tables above are based upon market factors, assumptions, models and estimates from the third party model and also incorporate management’s judgment and experience. The actual weighted average lives of our Credit Risk and Non-Agency Securities could be longer or shorter than estimated.

Note 8 -U.S. Treasury Securities

At March 31, 2018, investments in U.S. Treasury Securities accounted for 8.5% of our securities portfolio. We did not have any U.S. Treasury Securities at December 31, 2017.

At March 31, 2018, we had the following U.S. Treasury Securities in an unrealized gain or loss position as presented below. The components of the carrying value of our U.S. Treasury Securities at March 31, 2018 are also presented below.

	Amortized Cost	Gross Unrealized Loss		Gross Unrealized Gain	Fair Value
U.S. Treasury Securities	668,120	(281	)	2,857	670,696

The following table presents the unrealized losses and estimated fair value of our U.S. Treasury Securities by length of time that such securities have been in a continuous unrealized loss position at March 31, 2018.

	Unrealized Loss Position For:
	Less than 12 Months					12 Months or More				Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
March 31, 2018	$	99,180	$	(281	)	$	—	$	—	$	99,180	$	(281	)

XML

Credit Risk and Non-Agency Securities

3 Months Ended

Mar. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Credit Risk and Non-Agency Securities

Note 6 -Agency Securities

At March 31, 2018 and December 31, 2017, investments in Agency Securities accounted for 79.0% and 88.2% of our securities portfolio.

We evaluated our Agency Securities with unrealized losses at March 31, 2018, March 31, 2017 and December 31, 2017, to determine whether there was an other than temporary impairment. All of our Agency Securities are issued and guaranteed by GSEs or Ginnie Mae. The GSEs have a long term credit rating of AA+. At those dates, we also considered whether we intended to sell Agency Securities and whether it was more likely than not that we could meet our liquidity requirements and contractual obligations without selling Agency Securities.

Results of this evaluation for the three months ending March 31, 2018 - At March 31, 2018, we recognized additional losses on Agency Securities, previously identified during 2017, totaling $12,090 for the three months ended March 31, 2018 in our consolidated financial statements of operations. The aggregate fair value of the remaining identified low yielding Agency Securities is $681,827 at March 31, 2018. We determined that there was no other than temporary impairment of our remaining Agency Securities as of March 31, 2018.

Results of this evaluation for the period ending March 31, 2017 - No other than temporary impairment was recognized for the three months ended March 31, 2017 because we determined that we 1) did not have the intent to sell the Agency Securities in an unrealized loss position, 2) did not believe it more likely than not that we were required to sell the securities before recovery (for example, because of liquidity requirements or contractual obligations), and/or 3) determined that a credit loss did not exist.

Results of this evaluation for the year ended December 31, 2017 - During the second quarter of 2017, we identified certain low yielding Agency Securities that we replaced with securities having more attractive returns as market conditions permit. Accordingly, we recognized losses totaling $13,707 in our consolidated statements of operations for the year ended December 31, 2017, thereby establishing a new cost basis for those Agency Securities with an aggregate fair value of $795,724 as of December 31, 2017. We determined that there was no other than temporary impairment of our remaining Agency Securities as of December 31, 2017.

At March 31, 2018, we had the following Agency Securities in an unrealized gain or loss position as presented below. The components of the carrying value of our Agency Securities at March 31, 2018 are also presented below. Our Agency Securities had a weighted average coupon of 3.71% at March 31, 2018.

March 31, 2018	Amortized Cost		Gross Unrealized Loss			Gross Unrealized Gain		Fair Value		Percent of Total
Fannie Mae
ARMs & Hybrids	$	26,277	$	(304	)	$	74	$	26,047	0.42	%
Multi-Family MBS	1,482,115		(19,283		)	1,235		1,464,067		23.44
10 Year Fixed	28,927		(403		)	90		28,614		0.46
15 Year Fixed	939,147		(11,784		)	—		927,363		14.85
20 Year Fixed	28,155		(1,016		)	—		27,139		0.43
25 Year Fixed	25,185		(669		)	—		24,516		0.39
30 Year Fixed	2,429,537		(59,659		)	281		2,370,159		37.95
Total Fannie Mae	$	4,959,343	$	(93,118	)	$	1,680	$	4,867,905	77.94	%
Freddie Mac
10 Year Fixed	32,886		(262		)	168		32,792		0.53
15 Year Fixed	337,047		(1,391		)	13		335,669		5.37
25 Year Fixed	40,390		(1,770		)	—		38,620		0.62
30 Year Fixed	960,577		(25,613		)	—		934,964		14.97
Total Freddie Mac	$	1,370,900	$	(29,036	)	$	181	$	1,342,045	21.49	%
Ginnie Mae
ARMs & Hybrids	35,762		(538		)	1		35,225		0.57
10 Year Fixed	255		—			2		257		0.00
Total Ginnie Mae	$	36,017	$	(538	)	$	3	$	35,482	0.57	%
Total Agency Securities	$	6,366,260	$	(122,692	)	$	1,864	$	6,245,432	100.00	%

At December 31, 2017, we had the following securities in an unrealized gain or loss position as presented below. The components of the carrying value of our Agency Securities at December 31, 2017 are also presented below. Our Agency Securities had a weighted average coupon of 3.68% at December 31, 2017.

December 31, 2017	Amortized Cost		Gross Unrealized Loss			Gross Unrealized Gain		Fair Value		Percent of Total
Fannie Mae
ARMs & Hybrids	$	28,199	$	(229	)	$	112	$	28,082	0.38	%
Multi-Family MBS	1,799,737		(5,132		)	16,950		1,811,555		24.22
10 Year Fixed	60,634		(347		)	137		60,424		0.81
15 Year Fixed	1,028,797		(4,955		)	625		1,024,467		13.70
20 Year Fixed	29,832		(621		)	—		29,211		0.39
25 Year Fixed	9,367		(140		)	—		9,227		0.12
30 Year Fixed	2,938,655		(18,910		)	431		2,920,176		39.05
Total Fannie Mae	$	5,895,221	$	(30,334	)	$	18,255	$	5,883,142	78.67	%
Freddie Mac
10 Year Fixed	37,254		(158		)	228		37,324		0.50
15 Year Fixed	354,878		(211		)	787		355,454		4.75
25 Year Fixed	41,383		(857		)	—		40,526		0.54
30 Year Fixed	1,131,584		(7,300		)	—		1,124,284		15.03
Total Freddie Mac	$	1,565,099	$	(8,526	)	$	1,015	$	1,557,588	20.82	%
Ginnie Mae
ARMs & Hybrids	38,494		(532		)	4		37,966		0.51
10 Year Fixed	263		—			7		270		0.00
Total Ginnie Mae	$	38,757	$	(532	)	$	11	$	38,236	0.51	%
Total Agency Securities	$	7,499,077	$	(39,392	)	$	19,281	$	7,478,966	100.00	%

Recognition of interest income commences on the settlement date of the purchase transaction and continues through the settlement date of the sale transaction. At March 31, 2018, we had investment related receivables of $68,796 with respect to unsettled sales and investment related payables of $227,409 with respect to unsettled purchases. At December 31, 2017 we did not have any investment related receivables or payables with respect to unsettled sales and purchases of our Agency Securities.

Actual maturities of Agency Securities are generally shorter than stated contractual maturities because actual maturities of Agency Securities are affected by the contractual lives of the underlying mortgages, periodic payments of principal and prepayments of principal.

The following table summarizes the weighted average lives of our Agency Securities at March 31, 2018 and December 31, 2017.

	March 31, 2018				December 31, 2017
Weighted Average Life of all Agency Securities	Fair Value		Amortized Cost		Fair Value		Amortized Cost
Less than one year	$	—	$	—	$	—	$	—
Greater than or equal to one year and less than three years	41,918		41,986		29,126		29,269
Greater than or equal to three years and less than five years	1,133,824		1,144,807		1,353,036		1,353,998
Greater than or equal to five years	5,069,690		5,179,467		6,096,804		6,115,810
Total Agency Securities	$	6,245,432	$	6,366,260	$	7,478,966	$	7,499,077

We use a third party model to calculate the weighted average lives of our Agency Securities. Weighted average life is calculated based on expectations for estimated prepayments for the underlying mortgage loans of our Agency Securities. These estimated prepayments are based on assumptions such as interest rates, current and future home prices, housing policy and borrower incentives. The weighted average lives of our Agency Securities at March 31, 2018 and December 31, 2017 in the table above are based upon market factors, assumptions, models and estimates from the third party model and also incorporate management’s judgment and experience. The actual weighted average lives of our Agency Securities could be longer or shorter than estimated.

The following table presents the unrealized losses and estimated fair value of our Agency Securities by length of time that such securities have been in a continuous unrealized loss position at March 31, 2018 and December 31, 2017.

	Unrealized Loss Position For:
	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
March 31, 2018	$	4,208,407	$	(93,373	)	$	932,085	$	(29,319	)	$	5,140,492	$	(122,692	)
December 31, 2017	$	4,355,924	$	(28,906	)	$	733,637	$	(10,486	)	$	5,089,561	$	(39,392	)

During the three months ended March 31, 2018, we sold $1,137,792 (inclusive of $68,796 receivable for unsettled sales) of Agency Securities, which resulted in a realized loss of $(32,603). During the three months ended March 31, 2017, we sold $1,387,366 of Agency Securities, which resulted in a realized loss of $(11,154). Sales of Agency Securities are done to reposition our securities portfolio and to reach our target level of liquidity.

Note 7 -Credit Risk and Non-Agency Securities

At March 31, 2018 and December 31, 2017, investments in Credit Risk and Non-Agency Securities accounted for 12.2% and 11.5% of our securities portfolio.

The components of the carrying value of our Credit Risk and Non-Agency Securities at March 31, 2018 are presented in the table below. 

	Credit Risk and Non-Agency Securities
March 31, 2018	Fair Value		Amortized  Cost		Principal Amount		Weighted Average Coupon
Credit Risk Transfer	$	866,736	$	748,078	$	758,090	6.37%
Legacy Prime Fixed	16,267		14,766		18,585		6.03%
Legacy ALT-A Fixed	53,401		47,129		64,175		5.58%
Legacy Prime Hybrid	9,874		9,006		10,821		3.27%
Legacy ALT-A Hybrid	4,476		3,763		4,708		3.55%
New Issue Prime Fixed	18,196		17,689		18,716		3.69%
Total Credit Risk and Non-Agency Securities	$	968,950	$	840,431	$	875,095	6.22%

The components of the carrying value of our Credit Risk and Non-Agency Securities at December 31, 2017 are presented in the table below. 

	Credit Risk and Non-Agency Securities
December 31, 2017	Fair Value		Amortized  Cost		Principal Amount		Weighted Average Coupon
Credit Risk Transfer	$	870,494	$	753,422	$	764,172	6.05%
Legacy Prime Fixed	16,778		15,287		19,237		6.03%
Legacy ALT-A Fixed	54,727		48,516		65,920		5.85%
Legacy Prime Hybrid	10,469		9,517		11,452		3.17%
Legacy ALT-A Hybrid	4,660		3,895		4,901		3.47%
New Issue Prime Fixed	18,701		17,957		19,025		3.69%
Total Credit Risk and Non-Agency Securities	$	975,829	$	848,594	$	884,707	5.95%

Our Credit Risk Transfer securities are collaterized by residential mortgage loans meeting agency criteria. However, our securities principal and interest are not guaranteed by the agencies. Credit Risk Transfer securities include tranches issued since 2014. Our Legacy and New Issue Prime Fixed securities are collaterized by residential mortgage loans not guaranteed by any agency. Legacy Prime Fixed, Legacy Alt-A Fixed securities include tranches issued between 2005-2007. New Issue Prime Fixed securities include tranches issued in 2013.

The following table summarizes the weighted average lives of our Credit Risk and Non-Agency Securities at March 31, 2018 and December 31, 2017.

	March 31, 2018				December 31, 2017
Weighted Average Life of all Credit Risk and Non-Agency Securities	Fair Value		Amortized Cost		Fair Value		Amortized Cost
Less than one year	$	—	$	—	$	—	$	—
Greater than or equal to one year and less than three years	—		—		—		—
Greater than or equal to three years and less than five years	152,518		134,877		169,189		149,436
Greater than or equal to five years	816,432		705,554		806,640		699,158
Total Credit Risk and Non-Agency Securities	$	968,950	$	840,431	$	975,829	$	848,594

We use a third party model to calculate the weighted average lives of our Credit Risk and Non-Agency Securities. Weighted average life is calculated based on expectations for estimated prepayments for the underlying mortgage loans of our Credit Risk and Non-Agency Securities. These estimated prepayments are based on assumptions such as interest rates, current and future home prices, housing policy and borrower incentives. The weighted average lives of our Credit Risk and Non-Agency Securities at March 31, 2018 and December 31, 2017, in the tables above are based upon market factors, assumptions, models and estimates from the third party model and also incorporate management’s judgment and experience. The actual weighted average lives of our Credit Risk and Non-Agency Securities could be longer or shorter than estimated.

Note 8 -U.S. Treasury Securities

At March 31, 2018, investments in U.S. Treasury Securities accounted for 8.5% of our securities portfolio. We did not have any U.S. Treasury Securities at December 31, 2017.

At March 31, 2018, we had the following U.S. Treasury Securities in an unrealized gain or loss position as presented below. The components of the carrying value of our U.S. Treasury Securities at March 31, 2018 are also presented below.

	Amortized Cost	Gross Unrealized Loss		Gross Unrealized Gain	Fair Value
U.S. Treasury Securities	668,120	(281	)	2,857	670,696

The following table presents the unrealized losses and estimated fair value of our U.S. Treasury Securities by length of time that such securities have been in a continuous unrealized loss position at March 31, 2018.

	Unrealized Loss Position For:
	Less than 12 Months					12 Months or More				Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
March 31, 2018	$	99,180	$	(281	)	$	—	$	—	$	99,180	$	(281	)

XML

U.S. Treasury Securities

3 Months Ended

Mar. 31, 2018

Investments, Debt and Equity Securities [Abstract]

U.S. Treasury Securities

Note 6 -Agency Securities

At March 31, 2018 and December 31, 2017, investments in Agency Securities accounted for 79.0% and 88.2% of our securities portfolio.

We evaluated our Agency Securities with unrealized losses at March 31, 2018, March 31, 2017 and December 31, 2017, to determine whether there was an other than temporary impairment. All of our Agency Securities are issued and guaranteed by GSEs or Ginnie Mae. The GSEs have a long term credit rating of AA+. At those dates, we also considered whether we intended to sell Agency Securities and whether it was more likely than not that we could meet our liquidity requirements and contractual obligations without selling Agency Securities.

Results of this evaluation for the three months ending March 31, 2018 - At March 31, 2018, we recognized additional losses on Agency Securities, previously identified during 2017, totaling $12,090 for the three months ended March 31, 2018 in our consolidated financial statements of operations. The aggregate fair value of the remaining identified low yielding Agency Securities is $681,827 at March 31, 2018. We determined that there was no other than temporary impairment of our remaining Agency Securities as of March 31, 2018.

Results of this evaluation for the period ending March 31, 2017 - No other than temporary impairment was recognized for the three months ended March 31, 2017 because we determined that we 1) did not have the intent to sell the Agency Securities in an unrealized loss position, 2) did not believe it more likely than not that we were required to sell the securities before recovery (for example, because of liquidity requirements or contractual obligations), and/or 3) determined that a credit loss did not exist.

Results of this evaluation for the year ended December 31, 2017 - During the second quarter of 2017, we identified certain low yielding Agency Securities that we replaced with securities having more attractive returns as market conditions permit. Accordingly, we recognized losses totaling $13,707 in our consolidated statements of operations for the year ended December 31, 2017, thereby establishing a new cost basis for those Agency Securities with an aggregate fair value of $795,724 as of December 31, 2017. We determined that there was no other than temporary impairment of our remaining Agency Securities as of December 31, 2017.

At March 31, 2018, we had the following Agency Securities in an unrealized gain or loss position as presented below. The components of the carrying value of our Agency Securities at March 31, 2018 are also presented below. Our Agency Securities had a weighted average coupon of 3.71% at March 31, 2018.

March 31, 2018	Amortized Cost		Gross Unrealized Loss			Gross Unrealized Gain		Fair Value		Percent of Total
Fannie Mae
ARMs & Hybrids	$	26,277	$	(304	)	$	74	$	26,047	0.42	%
Multi-Family MBS	1,482,115		(19,283		)	1,235		1,464,067		23.44
10 Year Fixed	28,927		(403		)	90		28,614		0.46
15 Year Fixed	939,147		(11,784		)	—		927,363		14.85
20 Year Fixed	28,155		(1,016		)	—		27,139		0.43
25 Year Fixed	25,185		(669		)	—		24,516		0.39
30 Year Fixed	2,429,537		(59,659		)	281		2,370,159		37.95
Total Fannie Mae	$	4,959,343	$	(93,118	)	$	1,680	$	4,867,905	77.94	%
Freddie Mac
10 Year Fixed	32,886		(262		)	168		32,792		0.53
15 Year Fixed	337,047		(1,391		)	13		335,669		5.37
25 Year Fixed	40,390		(1,770		)	—		38,620		0.62
30 Year Fixed	960,577		(25,613		)	—		934,964		14.97
Total Freddie Mac	$	1,370,900	$	(29,036	)	$	181	$	1,342,045	21.49	%
Ginnie Mae
ARMs & Hybrids	35,762		(538		)	1		35,225		0.57
10 Year Fixed	255		—			2		257		0.00
Total Ginnie Mae	$	36,017	$	(538	)	$	3	$	35,482	0.57	%
Total Agency Securities	$	6,366,260	$	(122,692	)	$	1,864	$	6,245,432	100.00	%

At December 31, 2017, we had the following securities in an unrealized gain or loss position as presented below. The components of the carrying value of our Agency Securities at December 31, 2017 are also presented below. Our Agency Securities had a weighted average coupon of 3.68% at December 31, 2017.

December 31, 2017	Amortized Cost		Gross Unrealized Loss			Gross Unrealized Gain		Fair Value		Percent of Total
Fannie Mae
ARMs & Hybrids	$	28,199	$	(229	)	$	112	$	28,082	0.38	%
Multi-Family MBS	1,799,737		(5,132		)	16,950		1,811,555		24.22
10 Year Fixed	60,634		(347		)	137		60,424		0.81
15 Year Fixed	1,028,797		(4,955		)	625		1,024,467		13.70
20 Year Fixed	29,832		(621		)	—		29,211		0.39
25 Year Fixed	9,367		(140		)	—		9,227		0.12
30 Year Fixed	2,938,655		(18,910		)	431		2,920,176		39.05
Total Fannie Mae	$	5,895,221	$	(30,334	)	$	18,255	$	5,883,142	78.67	%
Freddie Mac
10 Year Fixed	37,254		(158		)	228		37,324		0.50
15 Year Fixed	354,878		(211		)	787		355,454		4.75
25 Year Fixed	41,383		(857		)	—		40,526		0.54
30 Year Fixed	1,131,584		(7,300		)	—		1,124,284		15.03
Total Freddie Mac	$	1,565,099	$	(8,526	)	$	1,015	$	1,557,588	20.82	%
Ginnie Mae
ARMs & Hybrids	38,494		(532		)	4		37,966		0.51
10 Year Fixed	263		—			7		270		0.00
Total Ginnie Mae	$	38,757	$	(532	)	$	11	$	38,236	0.51	%
Total Agency Securities	$	7,499,077	$	(39,392	)	$	19,281	$	7,478,966	100.00	%

Recognition of interest income commences on the settlement date of the purchase transaction and continues through the settlement date of the sale transaction. At March 31, 2018, we had investment related receivables of $68,796 with respect to unsettled sales and investment related payables of $227,409 with respect to unsettled purchases. At December 31, 2017 we did not have any investment related receivables or payables with respect to unsettled sales and purchases of our Agency Securities.

Actual maturities of Agency Securities are generally shorter than stated contractual maturities because actual maturities of Agency Securities are affected by the contractual lives of the underlying mortgages, periodic payments of principal and prepayments of principal.

The following table summarizes the weighted average lives of our Agency Securities at March 31, 2018 and December 31, 2017.

	March 31, 2018				December 31, 2017
Weighted Average Life of all Agency Securities	Fair Value		Amortized Cost		Fair Value		Amortized Cost
Less than one year	$	—	$	—	$	—	$	—
Greater than or equal to one year and less than three years	41,918		41,986		29,126		29,269
Greater than or equal to three years and less than five years	1,133,824		1,144,807		1,353,036		1,353,998
Greater than or equal to five years	5,069,690		5,179,467		6,096,804		6,115,810
Total Agency Securities	$	6,245,432	$	6,366,260	$	7,478,966	$	7,499,077

We use a third party model to calculate the weighted average lives of our Agency Securities. Weighted average life is calculated based on expectations for estimated prepayments for the underlying mortgage loans of our Agency Securities. These estimated prepayments are based on assumptions such as interest rates, current and future home prices, housing policy and borrower incentives. The weighted average lives of our Agency Securities at March 31, 2018 and December 31, 2017 in the table above are based upon market factors, assumptions, models and estimates from the third party model and also incorporate management’s judgment and experience. The actual weighted average lives of our Agency Securities could be longer or shorter than estimated.

The following table presents the unrealized losses and estimated fair value of our Agency Securities by length of time that such securities have been in a continuous unrealized loss position at March 31, 2018 and December 31, 2017.

	Unrealized Loss Position For:
	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
March 31, 2018	$	4,208,407	$	(93,373	)	$	932,085	$	(29,319	)	$	5,140,492	$	(122,692	)
December 31, 2017	$	4,355,924	$	(28,906	)	$	733,637	$	(10,486	)	$	5,089,561	$	(39,392	)

During the three months ended March 31, 2018, we sold $1,137,792 (inclusive of $68,796 receivable for unsettled sales) of Agency Securities, which resulted in a realized loss of $(32,603). During the three months ended March 31, 2017, we sold $1,387,366 of Agency Securities, which resulted in a realized loss of $(11,154). Sales of Agency Securities are done to reposition our securities portfolio and to reach our target level of liquidity.

Note 7 -Credit Risk and Non-Agency Securities

At March 31, 2018 and December 31, 2017, investments in Credit Risk and Non-Agency Securities accounted for 12.2% and 11.5% of our securities portfolio.

The components of the carrying value of our Credit Risk and Non-Agency Securities at March 31, 2018 are presented in the table below. 

	Credit Risk and Non-Agency Securities
March 31, 2018	Fair Value		Amortized  Cost		Principal Amount		Weighted Average Coupon
Credit Risk Transfer	$	866,736	$	748,078	$	758,090	6.37%
Legacy Prime Fixed	16,267		14,766		18,585		6.03%
Legacy ALT-A Fixed	53,401		47,129		64,175		5.58%
Legacy Prime Hybrid	9,874		9,006		10,821		3.27%
Legacy ALT-A Hybrid	4,476		3,763		4,708		3.55%
New Issue Prime Fixed	18,196		17,689		18,716		3.69%
Total Credit Risk and Non-Agency Securities	$	968,950	$	840,431	$	875,095	6.22%

The components of the carrying value of our Credit Risk and Non-Agency Securities at December 31, 2017 are presented in the table below. 

	Credit Risk and Non-Agency Securities
December 31, 2017	Fair Value		Amortized  Cost		Principal Amount		Weighted Average Coupon
Credit Risk Transfer	$	870,494	$	753,422	$	764,172	6.05%
Legacy Prime Fixed	16,778		15,287		19,237		6.03%
Legacy ALT-A Fixed	54,727		48,516		65,920		5.85%
Legacy Prime Hybrid	10,469		9,517		11,452		3.17%
Legacy ALT-A Hybrid	4,660		3,895		4,901		3.47%
New Issue Prime Fixed	18,701		17,957		19,025		3.69%
Total Credit Risk and Non-Agency Securities	$	975,829	$	848,594	$	884,707	5.95%

Our Credit Risk Transfer securities are collaterized by residential mortgage loans meeting agency criteria. However, our securities principal and interest are not guaranteed by the agencies. Credit Risk Transfer securities include tranches issued since 2014. Our Legacy and New Issue Prime Fixed securities are collaterized by residential mortgage loans not guaranteed by any agency. Legacy Prime Fixed, Legacy Alt-A Fixed securities include tranches issued between 2005-2007. New Issue Prime Fixed securities include tranches issued in 2013.

The following table summarizes the weighted average lives of our Credit Risk and Non-Agency Securities at March 31, 2018 and December 31, 2017.

	March 31, 2018				December 31, 2017
Weighted Average Life of all Credit Risk and Non-Agency Securities	Fair Value		Amortized Cost		Fair Value		Amortized Cost
Less than one year	$	—	$	—	$	—	$	—
Greater than or equal to one year and less than three years	—		—		—		—
Greater than or equal to three years and less than five years	152,518		134,877		169,189		149,436
Greater than or equal to five years	816,432		705,554		806,640		699,158
Total Credit Risk and Non-Agency Securities	$	968,950	$	840,431	$	975,829	$	848,594

We use a third party model to calculate the weighted average lives of our Credit Risk and Non-Agency Securities. Weighted average life is calculated based on expectations for estimated prepayments for the underlying mortgage loans of our Credit Risk and Non-Agency Securities. These estimated prepayments are based on assumptions such as interest rates, current and future home prices, housing policy and borrower incentives. The weighted average lives of our Credit Risk and Non-Agency Securities at March 31, 2018 and December 31, 2017, in the tables above are based upon market factors, assumptions, models and estimates from the third party model and also incorporate management’s judgment and experience. The actual weighted average lives of our Credit Risk and Non-Agency Securities could be longer or shorter than estimated.

Note 8 -U.S. Treasury Securities

At March 31, 2018, investments in U.S. Treasury Securities accounted for 8.5% of our securities portfolio. We did not have any U.S. Treasury Securities at December 31, 2017.

At March 31, 2018, we had the following U.S. Treasury Securities in an unrealized gain or loss position as presented below. The components of the carrying value of our U.S. Treasury Securities at March 31, 2018 are also presented below.

	Amortized Cost	Gross Unrealized Loss		Gross Unrealized Gain	Fair Value
U.S. Treasury Securities	668,120	(281	)	2,857	670,696

The following table presents the unrealized losses and estimated fair value of our U.S. Treasury Securities by length of time that such securities have been in a continuous unrealized loss position at March 31, 2018.

	Unrealized Loss Position For:
	Less than 12 Months					12 Months or More				Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
March 31, 2018	$	99,180	$	(281	)	$	—	$	—	$	99,180	$	(281	)

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Repurchase Agreements

3 Months Ended

Mar. 31, 2018

Disclosure of Repurchase Agreements [Abstract]

Repurchase Agreements

Note 9 -Repurchase Agreements

At March 31, 2018, we had MRAs with 46 counterparties and had $6,853,715 in outstanding borrowings with 27 of those counterparties. At December 31, 2017, we had MRAs with 46 counterparties and had $7,555,917 in outstanding borrowings with 32 of those counterparties.

The following table represents the contractual repricing regarding our repurchase agreements to finance our MBS purchases at March 31, 2018 and December 31, 2017. No amounts below are subject to offsetting.

March 31, 2018	Repurchase Agreements		Weighted Average Contractual Rate		Weighted Average Maturity in days	Haircut for Repurchase Agreements (1)
Agency Securities	$	5,481,911	1.92	%	25	4.18	%
Credit Risk and Non-Agency Securities	708,650		2.85	%	14	20.39	%
U.S. Treasury Securities	663,154		1.79	%	1	0.69	%
Total or Weighted Average	$	6,853,715	2.00	%	22	5.84	%

(1) The Haircut represents the weighted average margin requirement, or the percentage amount by which the collateral value must exceed the loan amount.

December 31, 2017	Repurchase Agreements		Weighted Average Contractual Rate		Weighted Average Maturity in days	Haircut for Repurchase Agreements (1)
Agency Securities	$	6,793,481	1.60	%	55	4.29	%
Credit Risk and Non-Agency Securities	762,436		2.67	%	15	21.68	%
Total or Weighted Average	$	7,555,917	1.71	%	51	6.39	%

(1) The Haircut represents the weighted average margin requirement, or the percentage amount by which the collateral value must exceed the loan amount.

Our repurchase agreements require that we maintain adequate pledged collateral. A decline in the value of the MBS pledged as collateral for borrowings under repurchase agreements could result in the counterparties demanding additional collateral pledges or liquidation of some of the existing collateral to reduce borrowing levels. We manage this risk by maintaining an adequate balance of available cash and unpledged securities. An event of default or termination event under the standard MRA would give our counterparty the option to terminate all repurchase transactions existing with us and require any amount due to be payable immediately. In addition, certain of our MRAs contain a restriction that prohibits our leverage from exceeding twelve times our stockholders’ equity as well as termination events in the case of significant reductions in equity capital. We also may receive cash or securities as collateral from our derivative counterparties which we may use as additional collateral for repurchase agreements. Certain interest rate swap contracts provide for cross collateralization and cross default with repurchase agreements and other contracts with the same counterparty.

	March 31, 2018				December 31, 2017
Maturing or Repricing	Repurchase Agreements		Weighted Average Contractual Rate		Repurchase Agreements		Weighted Average Contractual Rate
Within 30 days	$	4,883,094	2.05	%	$	1,738,768	2.08	%
31 days to 60 days	1,213,295		1.90	%	2,394,450		1.59	%
61 days to 90 days	757,326		1.90	%	3,422,699		1.61	%
Total or Weighted Average	$	6,853,715	2.00	%	$	7,555,917	1.71	%

At March 31, 2018 and December 31, 2017, Buckler Securities LLC, (See Note 16 -Related Party Transactions) accounted for 53.9% and 38.4% of our aggregate borrowings and had an amount at risk of 11.0% and 9.0%, respectively, of our total stockholders' equity with a weighted average maturity of 20 days and 70 days, respectively, on repurchase agreements.

In addition, at March 31, 2018 and December 31, 2017, we had 1 repurchase agreement counterparty individually accounted for between 5% and 10% of our aggregate borrowings. In total, this counterparty accounted for approximately 5.4% and 5.1% of our repurchase agreement borrowings outstanding at March 31, 2018 and December 31, 2017, respectively.

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Derivatives

3 Months Ended

Mar. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives

Note 10 -Derivatives

We enter into derivative transactions to manage our interest rate risk exposure. These transactions may include entering into interest rate swap contracts, swaptions and basis swaps. These transactions are designed to lock in funding costs for repurchase agreements associated with our assets in such a way to help assure the realization of net interest margins. Such transactions are based on assumptions about prepayments which, if not realized, will cause transaction results to differ from expectations. Basis swap contracts allow us to exchange one floating interest rate basis for another, for example, 3 month LIBOR and Fed Funds Rates, thereby allowing us to diversify our floating rate basis exposures. We also utilize forward contracts for the purchase or sale of TBA Agency Securities.

We have agreements with our derivative counterparties that provide for the posting of collateral based on the fair values of our interest rate swap contracts, swaptions, basis swap contracts and TBA Agency Securities. Through this margin process, either we or our swap counterparty may be required to pledge cash or Agency Securities as collateral. Collateral requirements vary by counterparty and change over time based on the fair value, notional amount and remaining term of the contracts. Certain interest rate swap contracts provide for cross collateralization and cross default with repurchase agreements and other contracts with the same counterparty.

Interest rate swaptions generally provide us the option to enter into an interest rate swap agreement at a certain point of time in the future with a predetermined notional amount, stated term and stated rate of interest in the fixed leg and interest rate index on the floating leg.

TBA Agency Securities are forward contracts for the purchase (“long position”) or sale (“short position”) of Agency Securities at a predetermined price, face amount, issuer, coupon and stated maturity on an agreed-upon future date. The specific Agency Securities delivered into the contract upon the settlement date, published each month by the Securities Industry and Financial Markets Association, are not known at the time of the transaction. We may enter into TBA Agency Securities as a means of hedging against short-term changes in interest rates. We may also enter into TBA Agency Securities as a means of acquiring or disposing of Agency Securities and we may from time to time utilize TBA dollar roll transactions to finance Agency Security purchases. We estimate the fair value of TBA Agency Securities based on similar methods used to value our Agency Securities.

The following tables present information about our derivatives at March 31, 2018 and December 31, 2017.

March 31, 2018

Derivative Type	Remaining / Underlying Term	Weighted Average Remaining Swap/Option Term (Months)	Weighted Average Rate		Notional Amount (3)		Asset Fair Value (1)		Liability Fair Value (1)
Interest rate swap contracts	0-12 Months	2	0.92	%	$	50,000	$	203	$	—
Interest rate swap contracts	13-24 Months	20	1.21	%	550,000		8,658		—
Interest rate swap contracts	25-36 Months	32	1.83	%	1,675,000		16,255		—
Interest rate swap contracts	73-84 Months	68	1.98	%	2,650,000		64,861		(142		)
Interest rate swap contracts	85-96 Months	96	1.95	%	50,000		1,493		—
Interest rate swap contracts	97-108 Months	104	1.95	%	1,200,000		37,399		—
Interest rate swap contracts	109-120 Months	118	2.33	%	625,000		3,175		(2,455		)
TBA Agency Securities (2)	n/a	n/a	n/a		4,300,000		3,659		(4,285		)
Total or Weighted Average					$	11,100,000	$	135,703	$	(6,882	)

(1) See Note 5, “Fair Value of Financial Instruments” for additional discussion.

(2) Implied cost basis of $4,425,348 and implied market value of $4,424,721. Includes $1,750,000 notional amount of forward settling TBA Agency Securities.

(3) Includes $500,000 notional of forward settling swap contracts that settle within 6 months.

December 31, 2017

Derivative Type	Remaining / Underlying Term	Weighted Average Remaining Swap / Option Term (Months)	Weighted Average Rate		Notional Amount		Asset Fair Value (1)		Liability Fair Value (1)
Interest rate swap contracts	0-12 Months	5	0.92	%	$	50,000	$	191	$	—
Interest rate swap contracts	13-24 Months	23	1.21	%	550,000		6,398		—
Interest rate swap contracts	25-36 Months	30	1.48	%	675,000		5,495		—
Interest rate swap contracts	61-72 Months	65	1.97	%	1,975,000		11,624		(250		)
Interest rate swap contracts	73-84 Months	79	1.89	%	575,000		3,306		(1,885		)
Interest rate swap contracts	97-108 Months	107	1.93	%	1,050,000		9,263		(10		)
Interest rate swap contracts	109-120 Months	114	2.10	%	375,000		—		(3,545		)
TBA Agency Securities (2)	0-60 Months	n/a	n/a		1,600,000		934		(2,258		)
Total or Weighted Average					$	6,850,000	$	37,211	$	(7,948	)

(1) See Note 5, “Fair Value of Financial Instruments” for additional discussion.

(2) Implied cost basis of $1,674,438 and implied market value of $1,673,113.

We have netting arrangements in place with all derivative counterparties pursuant to standard documentation developed by the International Swap and Derivatives Association. We are also required to post or hold cash collateral based upon the net underlying market value of our open positions with the counterparty.

The following tables present information about the potential effects of netting if we were to offset the assets and liabilities of these financial instruments on the accompanying consolidated balance sheets. Currently, we present these financial instruments at their gross amounts and they are included in derivatives, at fair value on the accompanying consolidated balance sheet at March 31, 2018.

March 31, 2018			Gross Amounts Not Offset in the consolidated Balance Sheet
Assets	Gross and Net Amounts of Assets Presented in the consolidated Balance Sheet		Financial Instruments			Cash Collateral			Net Amount
Interest rate swap contracts	$	132,044	$	(2,597	)	$	(120,317	)	$	9,130
TBA Agency Securities	3,659		(4,285		)	5,583			4,957
Totals	$	135,703	$	(6,882	)	$	(114,734	)	$	14,087

March 31, 2018				Gross Amounts Not Offset in the consolidated Balance Sheet
Liabilities	Gross and Net Amounts of Liabilities Presented in the consolidated Balance Sheet			Financial Instruments		Cash Collateral		Net Amount
Interest rate swap contracts	$	(2,597	)	$	2,597	$	—	$	—
Agency Securities TBA	(4,285		)	4,285		—		—
Totals	$	(6,882	)	$	6,882	$	—	$	—

The following tables present information about the potential effects of netting if we were to offset the assets and liabilities of these financial instruments on the accompanying consolidated balance sheets. Currently, we present these financial instruments at their gross amounts and they are included in derivatives, at fair value on the accompanying consolidated balance sheet at December 31, 2017.

December 31, 2017			Gross Amounts Not Offset in the consolidated Balance Sheet
Assets	Gross and Net Amounts of Assets Presented in the consolidated Balance Sheet		Financial Instruments			Cash Collateral			Net Amount
Interest rate swap contracts	$	36,277	$	(5,690	)	$	(22,689	)	$	7,898
Agency Securities TBA	934		(2,258		)	8,068			6,744
Totals	$	37,211	$	(7,948	)	$	(14,621	)	$	14,642

December 31, 2017				Gross Amounts Not Offset in the consolidated Balance Sheet
Liabilities	Gross and Net Amounts of Liabilities Presented in the consolidated Balance Sheet			Financial Instruments		Cash Collateral		Net Amount
Interest rate swap contracts	$	(5,690	)	$	5,690	$	—	$	—
Agency Securities TBA	(2,258		)	2,258		—		—
Totals	$	(7,948	)	$	7,948	$	—	$	—

The following table represents the location and information regarding our derivatives which are included in Other Income in the accompanying consolidated statements of operations for the three months ended March 31, 2018 and March 31, 2017.

		Income (Loss) Recognized
			For the Three Months Ended March 31,
Derivatives	Location on consolidated statements of operations		2018			2017
Interest rate swap contracts:
Realized gain	Realized loss on derivatives		$	2,655		$	—
Interest income	Realized loss on derivatives		22,169			8,374
Interest expense	Realized loss on derivatives		(27,848		)	(19,008		)
Changes in fair value	Unrealized gain on derivatives		92,329			17,814
			$	89,305		$	7,180
TBA Agency Securities:
Realized loss	Realized loss on derivatives		(35,580		)	(1,615		)
Changes in fair value	Unrealized gain on derivatives		4,872			5,954
			$	(30,708	)	$	4,339
Totals			$	58,597		$	11,519

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Note 11 -Commitments and Contingencies

Management Agreements with ACM

The Company is managed by ACM, pursuant to management agreements with ARMOUR and JAVELIN (see also Note 16, “Related Party Transactions”). The management agreements entitle ACM to receive management fees payable monthly in arrears. Currently, the monthly ARMOUR management fee is 1/12th of the sum of (a) 1.5% of gross equity raised up to $1.0 billion plus (b) 0.75% of gross equity raised in excess of $1.0 billion. The cost of repurchased stock and any dividend representing a return of capital for tax purposes will reduce the amount of gross equity raised used to calculate the monthly management fee. At March 31, 2018, the effective ARMOUR management fee was 1.04% based on gross equity raised of $2,620,693. At March 31, 2017, the effective ARMOUR management fee was 1.05% based on gross equity raised of $2,469,368. The ACM monthly management fees are not calculated based on the performance of our assets. Accordingly, the payment of our monthly management fees may not decline in the event of a decline in our earnings and may cause us to incur losses. We are also responsible for any costs and expenses that ACM incurred solely on behalf of ARMOUR or JAVELIN other than the various overhead expenses specified in the terms of the management agreements. ACM is further entitled to receive termination fees from ARMOUR and JAVELIN under certain circumstances.

Indemnifications and Litigation

We enter into certain contracts that contain a variety of indemnifications, principally with ACM and underwriters, against third party claims for errors and omissions in connection with their services to us. We have not incurred any costs to defend lawsuits or settle claims related to these indemnification agreements. As a result, the estimated fair value of these agreements, as well as the maximum amount attributable to past events, is not material. Accordingly, we have no liabilities recorded for these agreements at March 31, 2018 and December 31, 2017.

Nine putative class action lawsuits have been filed in connection with the tender offer (the “Tender Offer”) and merger (the “Merger”) for JAVELIN. The Tender Offer and Merger are collectively defined herein as the “Transactions.” All nine suits name ARMOUR, the previous members of JAVELIN’s board of directors prior to the Merger (of which eight are current members of ARMOUR’s board of directors) (the “Individual Defendants”) and JMI Acquisition Corporation (“Acquisition”) as defendants. Certain cases also name ACM and JAVELIN as additional defendants. The lawsuits were brought by purported holders of JAVELIN’s common stock, both individually and on behalf of a putative class of JAVELIN’s stockholders, alleging that the Individual Defendants breached their fiduciary duties owed to the plaintiffs and the putative class of JAVELIN stockholders, including claims that the Individual Defendants failed to properly value JAVELIN; failed to take steps to maximize the value of JAVELIN to its stockholders; ignored or failed to protect against conflicts of interest; failed to disclose material information about the Transactions; took steps to avoid competitive bidding and to give ARMOUR an unfair advantage by failing to adequately solicit other potential acquirors or alternative transactions; and erected unreasonable barriers to other third-party bidders. The suits also allege that ARMOUR, JAVELIN, ACM and Acquisition aided and abetted the alleged breaches of fiduciary duties by the Individual Defendants. The lawsuits seek equitable relief, including, among other relief, to enjoin consummation of the Transactions, or rescind or unwind the Transactions if already consummated, and award costs and disbursements, including reasonable attorneys’ fees and expenses. The sole Florida lawsuit was never served on the defendants, and that case was voluntarily dismissed and closed on January 20, 2017. On April 25, 2016, the Maryland court issued an order consolidating the eight Maryland cases into one action, captioned In re JAVELIN Mortgage Investment Corp. Shareholder Litigation (Case No. 24-C-16-001542), and designated counsel for one of the Maryland cases as interim lead co-counsel. On May 26, 2016, interim lead counsel filed the Consolidated Amended Class Action Complaint for Breach of Fiduciary Duty asserting consolidated claims of breach of fiduciary duty, aiding and abetting the breaches of fiduciary duty, and waste. On June 27, 2016, defendants filed a Motion to Dismiss the Consolidated Amended Class Action Complaint for failing to state a claim upon which relief can be granted. A hearing was held on the Motion to Dismiss on March 3, 2017, and the Court reserved ruling. To date, the Court has not issued an order on the Motion to Dismiss.

Each of ARMOUR, JAVELIN, ACM and the Individual Defendants intends to defend the claims made in these lawsuits vigorously; however, there can be no assurance that any of ARMOUR, JAVELIN, ACM or the Individual Defendants will prevail in its defense of any of these lawsuits to which it is a party. An unfavorable resolution of any such litigation surrounding the Transactions may result in monetary damages being awarded to the plaintiffs and the putative class of former stockholders of JAVELIN and the cost of defending the litigation, even if resolved favorably, could be substantial. Due to the preliminary nature all of these suits, ARMOUR is not able at this time to estimate their outcome.

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Stock Based Compensation

3 Months Ended

Mar. 31, 2018

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

Stock Based Compensation

Note 12 -Stock Based Compensation

We adopted the 2009 Stock Incentive Plan as amended (the “Plan”) to attract, retain and reward directors and other persons who provide services to us in the course of operations. The Plan authorizes the Board to grant awards including common stock, restricted shares of common stock (“RSUs”), stock options, performance shares, performance units, stock appreciation rights and other equity and cash-based awards (collectively, “Awards”), subject to terms as provided in the Plan. At March 31, 2018, there were 1,875 shares of common stock issuable under the Plan, of which 1,137 remain available for future issuance.

Transactions related to awards for the three months ended March 31, 2018 are summarized below:

	March 31, 2018
	Number of Awards		Weighted Average Grant Date Fair Value per Award
Unvested RSU Awards Outstanding beginning of period	472		$	24.82
Vested	(28	)	$	22.53
Unvested RSU Awards Outstanding end of period	444		$	23.55

At March 31, 2018, there was approximately $10,457 of unvested stock based compensation related to the Awards (based on a stock price of $23.55 per share), that we expect to recognize as an expense over the remaining average service period of 3.4 years. Our policy is to account for forfeitures as they occur. We also pay each of our non-executive Board members quarterly fees of $33, which is payable in cash, common stock, or a combination of common stock and cash at the option of the director.

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Stockholders' Equity

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Stockholders' Equity

Note 13 -Stockholders' Equity

Preferred Stock

At March 31, 2018 and December 31, 2017, we were authorized to issue up to 50,000 shares of preferred stock, par value $0.001 per share, with such designations, voting and other rights and preferences as may be determined from time to time by our Board of Directors (“Board”) or a committee thereof. We have designated 9,610 shares as 8.250% Series A Preferred Stock and 7,650 shares as 7.875% Series B Preferred Stock. At March 31, 2018, a total of 32,740 shares of our authorized preferred stock remain available for designation as future series.

Series A Cumulative Preferred Shares (“Series A Preferred Stock”)

At March 31, 2018 and December 31, 2017, we had 2,181 shares of Series A Preferred Stock issued and outstanding with a par value of $0.001 per share and a liquidation preference of $25.00 per share, or $54,514 in the aggregate. Shares designated as Series A Preferred Stock but unissued totaled 7,429 at March 31, 2018. At March 31, 2018 and December 31, 2017, there were no accrued or unpaid dividends on the Series A Preferred Stock. The Series A Preferred Stock is entitled to a dividend at a rate of 8.250% per year based on the $25.00 per share liquidation preference before the common stock is entitled to receive any dividends. Commencing on June 7, 2017, the Series A Preferred Stock is redeemable at $25.00 per share plus accrued and unpaid dividends exclusively at our option (subject to our right under limited circumstances to redeem the Series A Preferred Stock earlier in order to preserve our qualification as a REIT). The Series A Preferred Stock is senior to our common stock and therefore in the event of liquidation, dissolution or winding up, the Series A Preferred Stock will receive a liquidation preference of $25.00 per share plus accumulated and unpaid dividends before distributions are paid to holders of our common stock, with no right or claim to any of our remaining assets thereafter. The Series A Preferred Stock generally does not have voting rights, except if we fail to pay dividends on the Series A Preferred Stock for eighteen months, whether or not consecutive. Under such circumstances, the Series A Preferred Stock will be entitled to vote to elect two additional directors to the Board, until all unpaid dividends have been paid or declared and set aside for payment. The Series A Preferred Stock has no stated maturity, is not subject to any sinking fund or mandatory redemption and will remain outstanding indefinitely unless repurchased or redeemed by us or converted into our common stock in connection with a change of control by the holders of Series A Preferred Stock.

Series B Cumulative Preferred Shares (“Series B Preferred Stock”)

At March 31, 2018 and December 31, 2017, we had 6,369 and 6,262 shares of Series B Preferred Stock, respectively, issued and outstanding with a par value of $0.001 per share and a liquidation preference of $25.00 per share, or $159,232 and $156,560, respectively, in the aggregate at March 31, 2018 and December 31, 2017. Shares designated as Series B Preferred Stock but unissued totaled 1,281 at March 31, 2018. At March 31, 2018 and December 31, 2017, there were no accrued or unpaid dividends on the Series B Preferred Stock. The Series B Preferred Stock is entitled to a dividend at a rate of 7.875% per year based on the $25.00 per share liquidation preference before the common stock is entitled to receive any dividends. The Series B Preferred Stock is redeemable at $25.00 per share plus accrued and unpaid dividends exclusively at our option commencing on February 12, 2018 (subject to our right under limited circumstances to redeem the Series A Preferred Stock earlier in order to preserve our qualification as a REIT). The Series B Preferred Stock is senior to our common stock and rank on parity with the Series A Preferred Stock. In the event of liquidation, dissolution or winding up, the Series B Preferred Stock will receive a liquidation preference of $25.00 per share plus accumulated and unpaid dividends before distributions are paid to holders of our common stock, with no right or claim to any of our remaining assets thereafter. The Series B Preferred Stock generally does not have voting rights, except if we fail to pay dividends on the Series B Preferred Stock for eighteen months, whether or not consecutive. Under such circumstances, the Series B Preferred Stock will be entitled to vote to elect two additional directors to the Board, until all unpaid dividends have been paid or declared and set aside for payment. The Series B Preferred Stock has no stated maturity, is not subject to any sinking fund or mandatory redemption and will remain outstanding indefinitely unless repurchased or redeemed by us or converted into our common stock in connection with a change of control by the holders of Series B Preferred Stock.

On August 30, 2017, the Company entered into an ATM Equity Offering Sales Agreement (the “Preferred B ATM Sales Agreement”) relating to an "at-the-market" offering program for our Series B Preferred Stock. In accordance with the terms of the Preferred B ATM Sales Agreement, we may offer and sell over a period of time and from time to time, up to 2,000 shares of our Series B Preferred Stock. For the three months ended March 31, 2018, we sold 107 shares under this agreement. Proceeds from the sale of the 107 shares were $2,632, net of issuance costs of approximately $42.

Common Stock

At March 31, 2018 and December 31, 2017, we were authorized to issue up to 125,000 shares of common stock, par value $0.001 per share, with such designations, voting and other rights and preferences as may be determined from time to time by our Board. We had 41,902 shares of common stock issued and outstanding at March 31, 2018 and 41,877 shares of common stock issued and outstanding at December 31, 2017.

On May 26, 2017, the Company entered into an ATM Equity Offering Sales Agreement (the “Common stock ATM Sales Agreement”) relating to the shares of our common stock. In accordance with the terms of the Common stock ATM Sales Agreement, we may offer and sell over a period of time and from time to time, up to 5,000 shares of our common stock par value $0.001 per share. The Common stock ATM Sales Agreement relates to a proposed "at-the-market" offering program. On October 2, 2017, the Sales Agreement was amended. As of March 31, 2018, we have not sold any shares under this agreement.

Common Stock Repurchased

At March 31, 2018 and December 31, 2017, there were 1,874 authorized shares remaining under our common stock repurchase program (the “Repurchase Program”). During the three months ended March 31, 2018, we did not repurchase any common shares under the Repurchase Program. Under the Repurchase Program, shares may be purchased in the open market, including block trades, through privately negotiated transactions, or pursuant to a trading plan separately adopted in the future. The timing, manner, price and amount of any repurchases will be at our discretion, subject to the requirements of the Securities Exchange Act of 1934, as amended, and related rules. We are not required to repurchase any shares under the Repurchase Program and it may be modified, suspended or terminated at any time for any reason. We do not intend to purchase shares from our Board or other affiliates. Under Maryland law, such repurchased shares are treated as authorized but unissued.

Dividends

The following table presents our common stock dividend transactions for the three months ended March 31, 2018.

Record Date	Payment Date	Rate per common share		Aggregate amount paid to holders of record
January 16, 2018	January 29, 2018	$	0.19	$	8,046
February 15, 2018	February 27, 2018	$	0.19	8,046
March 15, 2018	March 28, 2018	$	0.19	8,046
Total dividends paid				$	24,138

The following table presents our Series A Preferred Stock dividend transactions for the three months ended March 31, 2018.

Record Date	Payment Date	Rate per Series A Preferred Share		Aggregate amount paid to holders of record
January 15, 2018	January 29, 2018	$	0.17	$	374.8
February 15, 2018	February 27, 2018	$	0.17	374.8
March 15, 2018	March 27, 2018	$	0.17	374.8
Total dividends paid				$	1,124

The following table presents our Series B Preferred Stock dividend transactions for the three months ended March 31, 2018.

Record Date	Payment Date	Rate per Series B Preferred Share		Aggregate amount paid to holders of record
January 15, 2018	January 29, 2018	$	0.16	$	1,039
February 15, 2018	February 27, 2018	$	0.16	1,045
March 15, 2018	March 27, 2018	$	0.16	1,045
Total dividends paid				$	3,129

Equity Capital Raising Activities

The following table presents our equity transactions for the three months ended March 31, 2018.

Transaction Type	Completion Date	Number of Shares	Per Share price (1)		Net Proceeds
Series B Preferred equity distribution agreement	January 2, 2018-January 26, 2018	107	$	24.62	$	2,632

(1) Weighted average price.

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Net Income per Common Share

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Net Income per Common Share

Note 14 -Net Income per Common Share

The following table presents a reconciliation of net income and the shares used in calculating weighted average basic and diluted earnings per common share for the three months ended March 31, 2018, and March 31, 2017.

	For the Three Months Ended March 31,
	2018			2017
Net Income	$	44,747		$	52,718
Less: Preferred dividends	(4,253		)	(3,905		)
Net Income available to common stockholders	$	40,494		$	48,813
Weighted average common shares outstanding – basic	41,887			36,724
Add: Effect of dilutive non-vested awards, assumed vested	444			24
Weighted average common shares outstanding – diluted	42,331			36,748

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Income Taxes

3 Months Ended

Mar. 31, 2018

Income Tax Disclosure [Abstract]

Income Taxes

Note 15 -Income Taxes

The following table reconciles our GAAP net income to estimated REIT taxable income for the three months ended March 31, 2018 and March 31, 2017. 

	For the Three Months Ended March 31,
	2018			2017
GAAP net income	$	44,747		$	52,718
Book to tax differences:
TRS income	(168		)	—
Premium amortization expense	(435		)	(90		)
Credit Risk and Non-Agency Securities	(1,196		)	(24,942		)
Interest-Only Securities	(407		)	3,141
U.S. Treasury Securities	(2,576		)	—
Changes in interest rate contracts	(64,276		)	(22,153		)
Other than temporary loss on Agency Securities	12,090			—
Losses on Security Sales	32,603			11,154
Amortization of deferred hedging costs	(14,584		)	(14,904		)
Other	2			4
Estimated REIT taxable income	$	5,800		$	4,928

Interest rate contracts are treated as hedging transactions for tax purposes. Unrealized gains and losses on open interest rate contracts are not included in the determination of REIT taxable income. Realized gains and losses on interest rate contracts terminated before their maturity are deferred and amortized over the remainder of the original term of the contract for REIT taxable income.

Net capital losses realized	Amount		Available to offset capital gains though
2013	(579,322	)	2018
2014	(341,850	)	2019
2015	(5,182	)	2020
2016	(31,204	)	2021
2017	(7,375	)	2022

The Company's subsidiary, ARMOUR TRS, Inc. has made an election as a taxable REIT subsidiary (“TRS”). As such, the TRS is taxable as a domestic C corporation and subject to federal, state and local income taxes based upon its taxable income. The Company's TRS is subject to federal, state and local taxes. During the three months ended March 31, 2018, we recorded $25 of income tax expense attributable to our TRS.

The aggregate tax basis of our assets and liabilities was greaterthan our total Stockholders’ Equity at March 31, 2018 by approximately $95,148, or approximately $2.27 per common share (based on the 41,902 common shares then outstanding).

We are required and intend to timely distribute substantially all of our REIT taxable income in order to maintain our REIT status under the Code. Total dividend payments to stockholders were $28,391 for the three months ended March 31, 2018 and $24,856 for the three months ended March 31, 2017, respectively. Our estimated REIT taxable income available for distribution as dividends was $5,800 for the three months ended March 31, 2018 and $4,928 for the three months ended March 31, 2017, respectively. Our REIT taxable income and dividend requirements to maintain our REIT status are determined on an annual basis. Dividends paid in excess of current tax earnings and profits for the year will generally not be taxable to common stockholders.

Our management is responsible for determining whether tax positions taken by us are more likely than not to be sustained on their merits. We have no material unrecognized tax benefits or material uncertain tax positions.

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Related Party Transactions

3 Months Ended

Mar. 31, 2018

Related Party Transactions [Abstract]

Related Party Transactions

Note 16 -Related Party Transactions

ACM

The Company is managed by ACM, pursuant to management agreements with ARMOUR and JAVELIN. All of our executive officers are also employees of ACM. ACM manages our day-to-day operations, subject to the direction and oversight of the Board. The ARMOUR management agreement runs through June 18, 2024 and is thereafter automatically renewed for an additional five-year terms unless terminated under certain circumstances. The JAVELIN Management Agreement renewed on October 5, 2017, for a one-year period, with the base management fee thereunder reduced to one dollar for the entirety of the renewal term. It will be automatically renewed annually for successive one- year terms unless terminated under certain circumstances. Either party must provide 180 days prior written notice of any such termination.

Under the terms of the management agreements, ACM is responsible for costs incident to the performance of its duties, such as compensation of its employees and various overhead expenses. ACM is responsible for the following primary roles:

• Advising us with respect to, arranging for and managing the acquisition, financing, management and disposition of, elements of our investment portfolio;

• Evaluating the duration risk and prepayment risk within the investment portfolio and arranging borrowing and hedging strategies;

• Coordinating capital raising activities;

• Advising us on the formulation and implementation of operating strategies and policies, arranging for the acquisition of assets, monitoring the performance of those assets  and providing administrative and managerial services in connection with our day-to-day operations; and

• Providing executive and administrative personnel, office space and other appropriate services required in rendering management services to us.

In accordance with management agreements, we incurred $6,801 in management fees for the three months ended March 31, 2018. For the three months ended March 31, 2017, we incurred $6,521 in management fees. In accordance with the JAVELIN management agreement, we paid management fees of $565 for the three months ended March 31, 2017.

We are required to take actions as may be reasonably required to permit and enable ACM to carry out its duties and obligations. We are also responsible for any costs and expenses that ACM incurred solely on our behalf other than the various overhead expenses specified in the terms of the management agreements. For the three months ended March 31, 2018, we reimbursed ACM $47 for other expenses incurred on our behalf. For the three months ended March 31, 2017, we reimbursed ACM $355 for other expenses incurred on our behalf. In consideration of our 2012 results, in 2013, we also elected to make a restricted stock award to our executive officers and other ACM employees through ACM. The award fully vested in December 2017 and resulted in our recognizing stock based compensation expense of $83 for the three months ended March 31, 2017. In November 2017, we elected to make restricted stock unit awards to ACM and to the Board. These awards began vesting in February 2018, causing us to recognize stock based compensation expense of $108 for the three months ended March 31, 2018.

BUCKLER

In March 2017, we contributed $352 for a 10% ownership interest in BUCKLER Securities, LLC, (“BUCKLER”) a Delaware limited liability company and a FINRA-regulated broker-dealer, controlled by ACM and certain executive officers of ARMOUR. The investment was included in prepaid and other assets in our consolidated balance sheet and is accounted for using the equity method as BUCKLER maintains specific ownership accounts. The value of the investment was $39 at March 31, 2018 reflecting our initial investment less our share of BUCKLER’s startup costs, in accordance with the terms of the operating agreement of BUCKLER that our independent directors negotiated. The intended purpose of the investment in BUCKLER is to facilitate access to repurchase financing for the Company, on potentially more attractive terms (based upon the combination of rate, term, size, haircut, stability and reliability generally available in the market for comparable securities transactions) than are available through third party brokers and dealers in the repurchase financing market, or from other suitable counterparties.

Our operating agreement with BUCKLER contains certain provisions to benefit and protect the Company, including (1) sharing in any (a) defined profits realized by BUCKLER from the anticipated financing spreads resulting from repurchase financing facilitated by BUCKLER, and (b) distributions from BUCKLER to its members of net cash receipts, and (2) the realization of anticipated savings from reduced clearing, brokerage, trading and administrative fees. In addition, the independent directors of the Company, must approve in their sole discretion, any third-party business engaged by BUCKLER and may cause BUCKLER to wind up and dissolve and promptly return certain subordinated loans we provide to BUCKLER as regulatory capital (as described more below) if the independent directors reasonably determine that BUCKLER’s ability to provide attractive securities transactions for the Company is materially adversely affected. BUCKLER began trading operations on October 25, 2017.

The Company has entered three subordinated loan agreements with BUCKLER, totaling $105.0 million. The loans have a stated interest rate of zero, plus additional interest payable to us in an amount equal to the amount of interest earned by BUCKLER on the investment of the loan proceeds, generally in government securities funds. In the first quarter of 2018, BUCKLER has paid the Company $280 of interest on these loans, and accrued another $344, which it received in April 2018. The loans are repayable as follows:

• $25.0 million due April 25, 2020. BUCKLER may at its option after obtaining the approval of the Financial Industry Regulatory Authority repay all or a portion of the principal amount of the loan any time after April 21, 2018.

• $15.0 million due August 31, 2020. BUCKLER may at its option after obtaining the approval of the Financial Industry Regulatory Authority repay all or a portion of the principal amount of the loan any time after August 29, 2018.

• $65.0 million due August 31, 2019. BUCKLER may at its option after obtaining the approval of the Financial Industry Regulatory Authority repay all or a portion of the principal amount of the loan any time after August 29, 2018.

The Company had outstanding borrowings under repurchase agreements with BUCKLER totaling $3,697,089 and $2,903,769 at March 31, 2018 and December 31, 2017, respectively. See also Note 9, “Repurchase Agreements” for transactions with BUCKLER.

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Interest Rate Risk

3 Months Ended

Mar. 31, 2018

Interest Rate Risk [Abstract]

Interest Rate Risk

Note 17 -Interest Rate Risk

Our primary market risk is interest rate risk. Interest rates are highly sensitive to many factors, including governmental monetary and tax policies, domestic and international economic and political considerations and other factors beyond our control. Changes in the general level of interest rates can affect net interest income, which is the difference between the interest income earned and the interest expense incurred in connection with the liabilities, by affecting the spread between the interest-earning assets and interest-bearing liabilities. Changes in the level of interest rates also can affect the value of MBS and our ability to realize gains from the sale of these assets. A decline in the value of the MBS pledged as collateral for borrowings under repurchase agreements could result in the counterparties demanding additional collateral pledges or liquidation of some of the existing collateral to reduce borrowing levels.

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Subsequent Events

3 Months Ended

Mar. 31, 2018

Subsequent Events [Abstract]

Subsequent Events

Note 18 -Subsequent Events

A cash dividend of $0.17 per outstanding share of Series A Preferred Stock, or $375 in the aggregate, and $0.16 per outstanding share of Series B Preferred Stock, or $1,045 in the aggregate, is payable on April 27, 2018 to holders of record on April 15, 2018. We have also declared cash dividends of $0.17 and $0.16 per outstanding share of Series A Preferred Stock and Series B Preferred Stock, respectively, payable May 29, 2018 to holders of record on May 15, 2018 and payable June 27, 2018 to holders of record on June 15, 2018.

A cash dividend of $0.19 per outstanding common share, or $8,045 in the aggregate, is payable on April 27, 2018 to holders of record on April 13, 2018. We have also declared a cash dividend of $0.19 per outstanding common share payable May 30, 2018 to holders of record on May 15, 2018.

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Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2018

Accounting Policies [Abstract]

Basis of Presentation

The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X promulgated by the SEC. Accordingly, the condensed financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included.

Cash

Cash

Cash includes cash on deposit with financial institutions. We may maintain deposits in federally insured financial institutions in excess of federally insured limits. However, management believes we are not exposed to significant credit risk due to the financial position and creditworthiness of the depository institutions in which those deposits are held.

Cash Collateral Posted To/By Counterparties

Cash Collateral Posted To/By Counterparties

Cash collateral posted to/by counterparties represents cash posted by us to counterparties or posted by counterparties to us as collateral. Cash collateral posted to/by counterparties may include collateral for interest rate swap contracts (including swaptions and basis swap contracts),and repurchase agreements on our MBS and our Agency Securities purchased or sold on a to-be-announced basis (“TBA Agency Securities”).

MBS, at Fair Value

Investments in Securities, at Fair Value

We generally intend to hold most of our securities for extended periods of time. We may, from time to time, sell any of our securities as part of the overall management of our securities portfolio. Management determines the appropriate classifications of the securities at the time they are acquired and evaluates the appropriateness of such classifications at each balance sheet date. Purchases and sales of our securities are recorded on the trade date.

•Fair Value of Agency Securities: We invest in Agency Securities representing interests in or obligations backed by pools of fixed rate, hybrid adjustable rate and adjustable rate mortgage loans. GAAP requires us to classify our investments as either trading, available for sale or held to maturity securities. Management determines the appropriate classifications of the securities at the time they are acquired and evaluates the appropriateness of such classifications at each balance sheet date. We currently classify all of our Agency Securities as available for sale. Agency Securities classified as available for sale are reported at their estimated fair values with unrealized gains and losses excluded from earnings and reported as part of the statements of comprehensive income (loss).

•Agency Security purchase and sale transactions (including purchase of TBA Agency Securities): Purchases and Sales are recorded on the trade date to the extent it is probable that we will take or make timely physical delivery of the related securities. Gains or losses realized from the sale of securities are included in income and are determined using the specific identification method.

Agency Securities

Agency Securities - At March 31, 2018 and December 31, 2017, all of our Agency Securities were classified as available for sale securities. Agency Securities classified as available for sale are reported at their estimated fair values with unrealized gains and losses excluded from earnings and reported as part of the consolidated statements of comprehensive income (loss).

Trading Securities

Credit Risk and Non-AgencySecurities- At March 31, 2018 and December 31, 2017, all of our Credit Risk and Non-Agency Securities were classified as trading securities. Credit Risk and Non-Agency Securities classified as trading are reported at their estimated fair values with unrealized gains and losses included in Other Income (Loss) as a component of the consolidated statements of operations.

Interest-Only Securities - At March 31, 2018 and December 31, 2017, all of our Interest-Only Securities were classified as trading securities. Interest-Only Securities represent the right to receive a specified proportion of the contractual interest flows of specific Agency MBS. Interest-Only Securities classified as trading are reported at their estimated fair values with unrealized gains and losses included in Other Income (Loss) as a component of the consolidated statements of operations.

U.S. Treasury Securities - At March 31, 2018, all of our U.S. Treasury Securities were classified as trading securities. U.S. Treasury Securities classified as trading are reported at their estimated fair values with unrealized gains and losses included in Other Income (Loss) as a component of the consolidated statements of operations. We did not have any U.S. Treasury Securities at December 31, 2017.

Receivables and Payables for Unsettled Sales and Purchases

Receivables and Payables for Unsettled Sales and Purchases

We account for purchases and sales of securities on the trade date, including purchases and sales for forward settlement. Receivables and payables for unsettled trades represent the agreed trade price multiplied by the outstanding balance of the securities at the balance sheet date.

Accrued Interest Receivable and Payable

Accrued Interest Receivable and Payable

Accrued interest receivable includes interest accrued between payment dates on securities. Accrued interest payable includes interest payable on our repurchase agreements and may, at certain times, contain interest payable on U.S. Treasury Securities sold short.

Repurchase Agreements

Repurchase Agreements

We finance the acquisition of our MBS through the use of repurchase agreements. Our repurchase agreements are secured by our MBS and bear interest rates that have historically moved in close relationship to the Federal Funds Rate and the London Interbank Offered Rate (“LIBOR”). Under these repurchase agreements, we sell MBS to a lender and agree to repurchase the same MBS in the future for a price that is higher than the original sales price. The difference between the sales price that we receive and the repurchase price that we pay represents interest paid to the lender. A repurchase agreement operates as a financing arrangement under which we pledge our MBS as collateral to secure a loan which is equal in value to a specified percentage of the estimated fair value of the pledged collateral. We retain beneficial ownership of the pledged collateral. At the maturity of a repurchase agreement, we are required to repay the loan and concurrently receive back our pledged collateral from the lender or, with the consent of the lender, we may renew such agreement at the then prevailing interest rate. The repurchase agreements may require us to pledge additional assets to the lender in the event the estimated fair value of the existing pledged collateral declines.

In addition to the repurchase agreement financing discussed above, at certain times we have entered into reverse repurchase agreements with certain of our repurchase agreement counterparties. Under a typical reverse repurchase agreement, we purchase U.S. Treasury Securities from a borrower in exchange for cash and agree to sell the same securities in the future in exchange for a price that is higher than the original purchase price. The difference between the purchase price originally paid and the sale price represents interest received from the borrower. Reverse repurchase agreement receivables and repurchase agreement liabilities are presented net when they meet certain criteria, including being with the same counterparty, being governed by the same master repurchase agreement (“MRA”), settlement through the same brokerage or clearing account and maturing on the same day.

Obligations to Return Securities Received as Collateral, at Fair Value

Derivatives, at Fair Value

Derivatives, at Fair Value

We recognize all derivatives as either assets or liabilities at fair value on our consolidated balance sheets. All changes in the fair values of our derivatives are reflected in our consolidated statements of operations. We designate derivatives as hedges for tax purposes and any unrealized derivative gains or losses would not affect our distributable net taxable income. These transactions include interest rate swap contracts, interest rate swaptions and basis swap contracts. We also may utilize forward contracts for the purchase or sale of TBA Agency Securities. We account for TBA Agency Securities as derivative instruments if it is reasonably possible that we will not take or make physical delivery of the Agency Security upon settlement of the contract. We account for TBA dollar roll transactions as a series of derivative transactions.

We may also purchase and sell TBA Agency Securities as a means of investing in and financing Agency Securities (thereby increasing our “at risk” leverage) or as a means of disposing of or reducing our exposure to Agency Securities (thereby reducing our “at risk” leverage). Pursuant to TBA Agency Securities, we agree to purchase or sell, for future delivery, Agency Securities with certain principal and interest terms and certain types of collateral, but the particular Agency Securities to be delivered are not identified until shortly before the TBA settlement date. We may also choose, prior to settlement, to move the settlement of these securities out to a later date by entering into an offsetting short or long position (referred to as a “pair off”), net settling the paired off positions for cash, and simultaneously purchasing or selling a similar TBA Agency Security for a later settlement date. This transaction is commonly referred to as a “dollar roll.” When it is reasonably possible that we will pair off a TBA Agency Security, we account for that contract as a derivative.

Revenue Recognition

Credit Risk and Non-Agency Securities and Interest-Only Securities - Interest income on Credit Risk and Non-Agency Securities and Interest-Only Securities is recognized using the effective yield method over the life of the securities based on the future cash flows expected to be received. Future cash flow projections and related effective yields are determined for each security and updated quarterly. Other than temporary impairments, which establish a new cost basis in the security for purposes of calculating effective yields, are recognized when the fair value of a security is less than its cost basis and there has been an adverse change in the future cash flows expected to be received. Other changes in future cash flows expected to be received are recognized prospectively over the remaining life of the security.

U.S. Treasury Securities - Interest income on U.S. Treasury Securities is recognized based on their unpaid principal amounts and their contractual terms. Recognition of interest income commences on the settlement date of the purchase transaction and continues through the settlement date of the sale transaction.

Revenue Recognition

Agency Securities - Interest income is earned and recognized on Agency Securities based on their unpaid principal amounts and their contractual terms. Recognition of interest income commences on the settlement date of the purchase transaction and continues through the settlement date of the sale transaction. Premiums and discounts associated with the purchase of Multi-Family MBS, which are generally not subject to prepayment, are amortized or accreted into interest income over the contractual lives of the securities using a level yield method. Premiums and discounts associated with the purchase of other Agency Securities are amortized or accreted into interest income over the actual lives of the securities, reflecting actual prepayments as they occur.

Impairment of Assets

Impairment of Assets: We evaluate Agency Securities for other than temporary impairment at least on a quarterly basis and more frequently when economic or market concerns warrant such evaluation. We consider an impairment to be other than temporary if we (1) have the intent to sell the Agency Securities, (2) believe it is more likely than not that we will be required to sell the securities before recovery (for example, because of liquidity requirements or contractual obligations) or (3) a credit loss exists. Impairment losses recognized establish a new cost basis for the related Agency Securities.

Comprehensive Income (Loss)

Comprehensive Income (Loss)

Comprehensive income (loss) refers to changes in equity during a period from transactions and other events and circumstances from non-owner sources. It includes all changes in equity during a period, except those resulting from investments by owners and distributions to owners.

Recent Accounting Pronouncements

We consider the applicability and impact of all Accounting Standards Updates issued by the Financial Accounting Standards Board. Those not listed below were deemed to be either not applicable, are not expected to have a significant impact on our consolidated financial statements when adopted, or did not have a significant impact on our consolidated financial statements upon adoption.

In August 2017, the Financial Accounting Standards Board issued ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The standard amends the hedge accounting recognition and presentation requirements in ASC 815. The standard is effective for fiscal years beginning after December 15, 2018 and interim periods therein, however, early adoption is permitted upon its issuance. The Company is currently assessing the impact of the standard and whether it may apply hedge accounting in the future.

In July 2016, the Financial Accounting Standards Board issued ASU 2016-13, Financial Instruments–Credit Losses (Topic 326). The standard introduces a new model for recognizing credit losses on financial instruments based on an estimate of current expected credit losses. The standard will apply to (1) loans, accounts receivable, trade receivables, and other financial assets measured at amortized cost, (2) loan commitments and certain other off–balance sheet credit exposures, (3) debt securities and other financial assets measured at fair value through other comprehensive income, and (4) beneficial interests in securitized financial assets. The standard is effective for fiscal years beginning after December 15, 2019. The Company is assessing the impact of this standard but does not expect it to have significant impact on the consolidated financial statements. However, the impact on the consolidated financial statements will depend on the debt securities held by the Company on the date of the adoption.

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Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following tables provide a summary of our assets and liabilities that are measured at fair value on a recurring basis at March 31, 2018 and December 31, 2017.

	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Balance at March 31, 2018
Assets at Fair Value:
Agency Securities	$	—	$	6,245,432	$	—	$	6,245,432
Credit Risk and Non-Agency Securities	$	—	$	968,950	$	—	$	968,950
Interest-Only Securities	$	—	$	24,933	$	—	$	24,933
U.S. Treasury Securities	$	670,696	$	—	$	—	$	670,696
Derivatives	$	—	$	135,703	$	—	$	135,703
Liabilities at Fair Value:
Derivatives	$	—	$	6,882	$	—	$	6,882

There were no transfers of assets or liabilities between the levels of the fair value hierarchy during the three months ending March 31, 2018.

	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Balance at December 31, 2017
Assets at Fair Value:
Agency Securities	$	—	$	7,478,966	$	—	$	7,478,966
Credit Risk and Non-Agency Securities	$	—	$	975,829	$	—	$	975,829
Interest-Only Securities	$	—	$	25,752	$	—	$	25,752
Derivatives	$	—	$	37,211	$	—	$	37,211
Liabilities at Fair Value:
Derivatives	$	—	$	7,948	$	—	$	7,948

Carrying Values and Fair Values of Financial Assets and Liabilities

The following tables provide a summary of the carrying values and fair values of our financial assets and liabilities not carried at fair value but for which fair value is required to be disclosed at March 31, 2018 and December 31, 2017.

March 31, 2018					Fair Value Measurements using:
	Carrying Value		Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial Assets:
Cash	$	216,497	$	216,497	$	216,497	$	—	$	—
Cash collateral posted to counterparties	$	13,150	$	13,150	$	—	$	13,150	$	—
Receivable for unsettled sales	$	68,796	$	68,796	$	—	$	68,796	$	—
Accrued interest receivable	$	20,492	$	20,492	$	—	$	20,492	$	—
Subordinated loans due from BUCKLER Securities LLC	$	105,000	$	105,000	$	—	$	105,000	$	—
Financial Liabilities:
Repurchase agreements	$	6,853,715	$	6,853,715	$	—	$	6,853,715	$	—
Cash collateral posted by counterparties	$	127,721	$	127,721	$	—	$	127,721	$	—
Payable for unsettled purchases	$	227,409	$	227,409	$	—	$	227,409	$	—
Accrued interest payable- repurchase agreements	$	5,274	$	5,274	$	—	$	5,274	$	—

December 31, 2017					Fair Value Measurements using:
	Carrying Value		Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial Assets:
Cash	$	265,232	$	265,232	$	265,232	$	—	$	—
Cash collateral posted to counterparties	$	17,162	$	17,162	$	—	$	17,162	$	—
Accrued interest receivable	$	22,165	$	22,165	$	—	$	22,165	$	—
Subordinated loans due from BUCKLER Securities LLC	$	105,000	105,000		$	—	$	105,000	$	—
Financial Liabilities:
Repurchase agreements	$	7,555,917	$	7,555,917	$	—	$	7,555,917	$	—
Cash collateral posted by counterparties	$	29,593	$	29,593	$	—	$	29,593	$	—
Accrued interest payable- repurchase agreements	$	6,452	$	6,452	$	—	$	6,452	$	—

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation

The following table provides a summary of the changes in Level 3 assets measured at fair value on a recurring basis at March 31, 2018 and March 31, 2017.

	For the Three Months Ended March 31,
Credit Risk and Non-Agency Securities	2018		2017
Balance, beginning of period	$	—	$	1,052,170
Purchases of Credit Risk and Non-Agency Securities, at cost	—		8,224
Principal repayments of Credit Risk and Non-Agency Securities	—		(16,088		)
Gain on Credit Risk and Non-Agency Securities	—		24,284
Accretion of net discount on Credit Risk and Non-Agency Securities	—		848
Balance, end of period	$	—	$	1,069,438
Gain on Credit Risk and Non-Agency Securities	$	—	$	24,284

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Agency Securities, Available for Sale (Tables)

3 Months Ended

Mar. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Available-for-sale Securities in an Unrealized Gain or Loss Position

At March 31, 2018, we had the following Agency Securities in an unrealized gain or loss position as presented below. The components of the carrying value of our Agency Securities at March 31, 2018 are also presented below. Our Agency Securities had a weighted average coupon of 3.71% at March 31, 2018.

March 31, 2018	Amortized Cost		Gross Unrealized Loss			Gross Unrealized Gain		Fair Value		Percent of Total
Fannie Mae
ARMs & Hybrids	$	26,277	$	(304	)	$	74	$	26,047	0.42	%
Multi-Family MBS	1,482,115		(19,283		)	1,235		1,464,067		23.44
10 Year Fixed	28,927		(403		)	90		28,614		0.46
15 Year Fixed	939,147		(11,784		)	—		927,363		14.85
20 Year Fixed	28,155		(1,016		)	—		27,139		0.43
25 Year Fixed	25,185		(669		)	—		24,516		0.39
30 Year Fixed	2,429,537		(59,659		)	281		2,370,159		37.95
Total Fannie Mae	$	4,959,343	$	(93,118	)	$	1,680	$	4,867,905	77.94	%
Freddie Mac
10 Year Fixed	32,886		(262		)	168		32,792		0.53
15 Year Fixed	337,047		(1,391		)	13		335,669		5.37
25 Year Fixed	40,390		(1,770		)	—		38,620		0.62
30 Year Fixed	960,577		(25,613		)	—		934,964		14.97
Total Freddie Mac	$	1,370,900	$	(29,036	)	$	181	$	1,342,045	21.49	%
Ginnie Mae
ARMs & Hybrids	35,762		(538		)	1		35,225		0.57
10 Year Fixed	255		—			2		257		0.00
Total Ginnie Mae	$	36,017	$	(538	)	$	3	$	35,482	0.57	%
Total Agency Securities	$	6,366,260	$	(122,692	)	$	1,864	$	6,245,432	100.00	%

At December 31, 2017, we had the following securities in an unrealized gain or loss position as presented below. The components of the carrying value of our Agency Securities at December 31, 2017 are also presented below. Our Agency Securities had a weighted average coupon of 3.68% at December 31, 2017.

December 31, 2017	Amortized Cost		Gross Unrealized Loss			Gross Unrealized Gain		Fair Value		Percent of Total
Fannie Mae
ARMs & Hybrids	$	28,199	$	(229	)	$	112	$	28,082	0.38	%
Multi-Family MBS	1,799,737		(5,132		)	16,950		1,811,555		24.22
10 Year Fixed	60,634		(347		)	137		60,424		0.81
15 Year Fixed	1,028,797		(4,955		)	625		1,024,467		13.70
20 Year Fixed	29,832		(621		)	—		29,211		0.39
25 Year Fixed	9,367		(140		)	—		9,227		0.12
30 Year Fixed	2,938,655		(18,910		)	431		2,920,176		39.05
Total Fannie Mae	$	5,895,221	$	(30,334	)	$	18,255	$	5,883,142	78.67	%
Freddie Mac
10 Year Fixed	37,254		(158		)	228		37,324		0.50
15 Year Fixed	354,878		(211		)	787		355,454		4.75
25 Year Fixed	41,383		(857		)	—		40,526		0.54
30 Year Fixed	1,131,584		(7,300		)	—		1,124,284		15.03
Total Freddie Mac	$	1,565,099	$	(8,526	)	$	1,015	$	1,557,588	20.82	%
Ginnie Mae
ARMs & Hybrids	38,494		(532		)	4		37,966		0.51
10 Year Fixed	263		—			7		270		0.00
Total Ginnie Mae	$	38,757	$	(532	)	$	11	$	38,236	0.51	%
Total Agency Securities	$	7,499,077	$	(39,392	)	$	19,281	$	7,478,966	100.00	%

Summary of Weighted Average Lives of Agency Securities

The following table summarizes the weighted average lives of our Agency Securities at March 31, 2018 and December 31, 2017.

	March 31, 2018				December 31, 2017
Weighted Average Life of all Agency Securities	Fair Value		Amortized Cost		Fair Value		Amortized Cost
Less than one year	$	—	$	—	$	—	$	—
Greater than or equal to one year and less than three years	41,918		41,986		29,126		29,269
Greater than or equal to three years and less than five years	1,133,824		1,144,807		1,353,036		1,353,998
Greater than or equal to five years	5,069,690		5,179,467		6,096,804		6,115,810
Total Agency Securities	$	6,245,432	$	6,366,260	$	7,478,966	$	7,499,077

Unrealized Losses and Estimated Fair Value of Agency Securities

The following table presents the unrealized losses and estimated fair value of our Agency Securities by length of time that such securities have been in a continuous unrealized loss position at March 31, 2018 and December 31, 2017.

	Unrealized Loss Position For:
	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
March 31, 2018	$	4,208,407	$	(93,373	)	$	932,085	$	(29,319	)	$	5,140,492	$	(122,692	)
December 31, 2017	$	4,355,924	$	(28,906	)	$	733,637	$	(10,486	)	$	5,089,561	$	(39,392	)

The following table presents the unrealized losses and estimated fair value of our U.S. Treasury Securities by length of time that such securities have been in a continuous unrealized loss position at March 31, 2018.

	Unrealized Loss Position For:
	Less than 12 Months					12 Months or More				Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
March 31, 2018	$	99,180	$	(281	)	$	—	$	—	$	99,180	$	(281	)

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Credit Risk and Non-Agency Securities (Tables)

3 Months Ended

Mar. 31, 2018

Schedule of Trading Securities and Other Trading Assets [Line Items]

Summary of Weighted Average Lives of Credit Risk and Non-Agency Securities

The following table summarizes the weighted average lives of our Agency Securities at March 31, 2018 and December 31, 2017.

	March 31, 2018				December 31, 2017
Weighted Average Life of all Agency Securities	Fair Value		Amortized Cost		Fair Value		Amortized Cost
Less than one year	$	—	$	—	$	—	$	—
Greater than or equal to one year and less than three years	41,918		41,986		29,126		29,269
Greater than or equal to three years and less than five years	1,133,824		1,144,807		1,353,036		1,353,998
Greater than or equal to five years	5,069,690		5,179,467		6,096,804		6,115,810
Total Agency Securities	$	6,245,432	$	6,366,260	$	7,478,966	$	7,499,077

Credit Risk and Non-Agency Securities

Schedule of Trading Securities and Other Trading Assets [Line Items]

Components of Carrying Value of Credit Risk and Non-Agency Securities

The components of the carrying value of our Credit Risk and Non-Agency Securities at March 31, 2018 are presented in the table below. 

	Credit Risk and Non-Agency Securities
March 31, 2018	Fair Value		Amortized  Cost		Principal Amount		Weighted Average Coupon
Credit Risk Transfer	$	866,736	$	748,078	$	758,090	6.37%
Legacy Prime Fixed	16,267		14,766		18,585		6.03%
Legacy ALT-A Fixed	53,401		47,129		64,175		5.58%
Legacy Prime Hybrid	9,874		9,006		10,821		3.27%
Legacy ALT-A Hybrid	4,476		3,763		4,708		3.55%
New Issue Prime Fixed	18,196		17,689		18,716		3.69%
Total Credit Risk and Non-Agency Securities	$	968,950	$	840,431	$	875,095	6.22%

The components of the carrying value of our Credit Risk and Non-Agency Securities at December 31, 2017 are presented in the table below. 

	Credit Risk and Non-Agency Securities
December 31, 2017	Fair Value		Amortized  Cost		Principal Amount		Weighted Average Coupon
Credit Risk Transfer	$	870,494	$	753,422	$	764,172	6.05%
Legacy Prime Fixed	16,778		15,287		19,237		6.03%
Legacy ALT-A Fixed	54,727		48,516		65,920		5.85%
Legacy Prime Hybrid	10,469		9,517		11,452		3.17%
Legacy ALT-A Hybrid	4,660		3,895		4,901		3.47%
New Issue Prime Fixed	18,701		17,957		19,025		3.69%
Total Credit Risk and Non-Agency Securities	$	975,829	$	848,594	$	884,707	5.95%

Summary of Weighted Average Lives of Credit Risk and Non-Agency Securities

The following table summarizes the weighted average lives of our Credit Risk and Non-Agency Securities at March 31, 2018 and December 31, 2017.

	March 31, 2018				December 31, 2017
Weighted Average Life of all Credit Risk and Non-Agency Securities	Fair Value		Amortized Cost		Fair Value		Amortized Cost
Less than one year	$	—	$	—	$	—	$	—
Greater than or equal to one year and less than three years	—		—		—		—
Greater than or equal to three years and less than five years	152,518		134,877		169,189		149,436
Greater than or equal to five years	816,432		705,554		806,640		699,158
Total Credit Risk and Non-Agency Securities	$	968,950	$	840,431	$	975,829	$	848,594

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U.S. Treasury Securities (Tables)

3 Months Ended

Mar. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Unrealized Gain (Loss) on Investments

At March 31, 2018, we had the following U.S. Treasury Securities in an unrealized gain or loss position as presented below. The components of the carrying value of our U.S. Treasury Securities at March 31, 2018 are also presented below.

	Amortized Cost	Gross Unrealized Loss		Gross Unrealized Gain	Fair Value
U.S. Treasury Securities	668,120	(281	)	2,857	670,696

Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value

The following table presents the unrealized losses and estimated fair value of our Agency Securities by length of time that such securities have been in a continuous unrealized loss position at March 31, 2018 and December 31, 2017.

	Unrealized Loss Position For:
	Less than 12 Months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
March 31, 2018	$	4,208,407	$	(93,373	)	$	932,085	$	(29,319	)	$	5,140,492	$	(122,692	)
December 31, 2017	$	4,355,924	$	(28,906	)	$	733,637	$	(10,486	)	$	5,089,561	$	(39,392	)

The following table presents the unrealized losses and estimated fair value of our U.S. Treasury Securities by length of time that such securities have been in a continuous unrealized loss position at March 31, 2018.

	Unrealized Loss Position For:
	Less than 12 Months					12 Months or More				Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
March 31, 2018	$	99,180	$	(281	)	$	—	$	—	$	99,180	$	(281	)

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Repurchase Agreements (Tables)

3 Months Ended

Mar. 31, 2018

Disclosure of Repurchase Agreements [Abstract]

Schedule of Repurchase Agreements

	March 31, 2018				December 31, 2017
Maturing or Repricing	Repurchase Agreements		Weighted Average Contractual Rate		Repurchase Agreements		Weighted Average Contractual Rate
Within 30 days	$	4,883,094	2.05	%	$	1,738,768	2.08	%
31 days to 60 days	1,213,295		1.90	%	2,394,450		1.59	%
61 days to 90 days	757,326		1.90	%	3,422,699		1.61	%
Total or Weighted Average	$	6,853,715	2.00	%	$	7,555,917	1.71	%

The following table represents the contractual repricing regarding our repurchase agreements to finance our MBS purchases at March 31, 2018 and December 31, 2017. No amounts below are subject to offsetting.

March 31, 2018	Repurchase Agreements		Weighted Average Contractual Rate		Weighted Average Maturity in days	Haircut for Repurchase Agreements (1)
Agency Securities	$	5,481,911	1.92	%	25	4.18	%
Credit Risk and Non-Agency Securities	708,650		2.85	%	14	20.39	%
U.S. Treasury Securities	663,154		1.79	%	1	0.69	%
Total or Weighted Average	$	6,853,715	2.00	%	22	5.84	%

(1) The Haircut represents the weighted average margin requirement, or the percentage amount by which the collateral value must exceed the loan amount.

December 31, 2017	Repurchase Agreements		Weighted Average Contractual Rate		Weighted Average Maturity in days	Haircut for Repurchase Agreements (1)
Agency Securities	$	6,793,481	1.60	%	55	4.29	%
Credit Risk and Non-Agency Securities	762,436		2.67	%	15	21.68	%
Total or Weighted Average	$	7,555,917	1.71	%	51	6.39	%

(1) The Haircut represents the weighted average margin requirement, or the percentage amount by which the collateral value must exceed the loan amount.

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Derivatives (Tables)

3 Months Ended

Mar. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments

The following tables present information about our derivatives at March 31, 2018 and December 31, 2017.

March 31, 2018

Derivative Type	Remaining / Underlying Term	Weighted Average Remaining Swap/Option Term (Months)	Weighted Average Rate		Notional Amount (3)		Asset Fair Value (1)		Liability Fair Value (1)
Interest rate swap contracts	0-12 Months	2	0.92	%	$	50,000	$	203	$	—
Interest rate swap contracts	13-24 Months	20	1.21	%	550,000		8,658		—
Interest rate swap contracts	25-36 Months	32	1.83	%	1,675,000		16,255		—
Interest rate swap contracts	73-84 Months	68	1.98	%	2,650,000		64,861		(142		)
Interest rate swap contracts	85-96 Months	96	1.95	%	50,000		1,493		—
Interest rate swap contracts	97-108 Months	104	1.95	%	1,200,000		37,399		—
Interest rate swap contracts	109-120 Months	118	2.33	%	625,000		3,175		(2,455		)
TBA Agency Securities (2)	n/a	n/a	n/a		4,300,000		3,659		(4,285		)
Total or Weighted Average					$	11,100,000	$	135,703	$	(6,882	)

(1) See Note 5, “Fair Value of Financial Instruments” for additional discussion.

(2) Implied cost basis of $4,425,348 and implied market value of $4,424,721. Includes $1,750,000 notional amount of forward settling TBA Agency Securities.

(3) Includes $500,000 notional of forward settling swap contracts that settle within 6 months.

December 31, 2017

Derivative Type	Remaining / Underlying Term	Weighted Average Remaining Swap / Option Term (Months)	Weighted Average Rate		Notional Amount		Asset Fair Value (1)		Liability Fair Value (1)
Interest rate swap contracts	0-12 Months	5	0.92	%	$	50,000	$	191	$	—
Interest rate swap contracts	13-24 Months	23	1.21	%	550,000		6,398		—
Interest rate swap contracts	25-36 Months	30	1.48	%	675,000		5,495		—
Interest rate swap contracts	61-72 Months	65	1.97	%	1,975,000		11,624		(250		)
Interest rate swap contracts	73-84 Months	79	1.89	%	575,000		3,306		(1,885		)
Interest rate swap contracts	97-108 Months	107	1.93	%	1,050,000		9,263		(10		)
Interest rate swap contracts	109-120 Months	114	2.10	%	375,000		—		(3,545		)
TBA Agency Securities (2)	0-60 Months	n/a	n/a		1,600,000		934		(2,258		)
Total or Weighted Average					$	6,850,000	$	37,211	$	(7,948	)

(1) See Note 5, “Fair Value of Financial Instruments” for additional discussion.

(2) Implied cost basis of $1,674,438 and implied market value of $1,673,113.

Offsetting Assets

The following tables present information about the potential effects of netting if we were to offset the assets and liabilities of these financial instruments on the accompanying consolidated balance sheets. Currently, we present these financial instruments at their gross amounts and they are included in derivatives, at fair value on the accompanying consolidated balance sheet at March 31, 2018.

March 31, 2018			Gross Amounts Not Offset in the consolidated Balance Sheet
Assets	Gross and Net Amounts of Assets Presented in the consolidated Balance Sheet		Financial Instruments			Cash Collateral			Net Amount
Interest rate swap contracts	$	132,044	$	(2,597	)	$	(120,317	)	$	9,130
TBA Agency Securities	3,659		(4,285		)	5,583			4,957
Totals	$	135,703	$	(6,882	)	$	(114,734	)	$	14,087

The following tables present information about the potential effects of netting if we were to offset the assets and liabilities of these financial instruments on the accompanying consolidated balance sheets. Currently, we present these financial instruments at their gross amounts and they are included in derivatives, at fair value on the accompanying consolidated balance sheet at December 31, 2017.

December 31, 2017			Gross Amounts Not Offset in the consolidated Balance Sheet
Assets	Gross and Net Amounts of Assets Presented in the consolidated Balance Sheet		Financial Instruments			Cash Collateral			Net Amount
Interest rate swap contracts	$	36,277	$	(5,690	)	$	(22,689	)	$	7,898
Agency Securities TBA	934		(2,258		)	8,068			6,744
Totals	$	37,211	$	(7,948	)	$	(14,621	)	$	14,642

Offsetting Liabilities

March 31, 2018				Gross Amounts Not Offset in the consolidated Balance Sheet
Liabilities	Gross and Net Amounts of Liabilities Presented in the consolidated Balance Sheet			Financial Instruments		Cash Collateral		Net Amount
Interest rate swap contracts	$	(2,597	)	$	2,597	$	—	$	—
Agency Securities TBA	(4,285		)	4,285		—		—
Totals	$	(6,882	)	$	6,882	$	—	$	—

December 31, 2017				Gross Amounts Not Offset in the consolidated Balance Sheet
Liabilities	Gross and Net Amounts of Liabilities Presented in the consolidated Balance Sheet			Financial Instruments		Cash Collateral		Net Amount
Interest rate swap contracts	$	(5,690	)	$	5,690	$	—	$	—
Agency Securities TBA	(2,258		)	2,258		—		—
Totals	$	(7,948	)	$	7,948	$	—	$	—

Derivative Instruments, Gain (Loss)

The following table represents the location and information regarding our derivatives which are included in Other Income in the accompanying consolidated statements of operations for the three months ended March 31, 2018 and March 31, 2017.

		Income (Loss) Recognized
			For the Three Months Ended March 31,
Derivatives	Location on consolidated statements of operations		2018			2017
Interest rate swap contracts:
Realized gain	Realized loss on derivatives		$	2,655		$	—
Interest income	Realized loss on derivatives		22,169			8,374
Interest expense	Realized loss on derivatives		(27,848		)	(19,008		)
Changes in fair value	Unrealized gain on derivatives		92,329			17,814
			$	89,305		$	7,180
TBA Agency Securities:
Realized loss	Realized loss on derivatives		(35,580		)	(1,615		)
Changes in fair value	Unrealized gain on derivatives		4,872			5,954
			$	(30,708	)	$	4,339
Totals			$	58,597		$	11,519

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Stock Based Compensation (Tables)

3 Months Ended

Mar. 31, 2018

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

Schedule of Nonvested Restricted Stock Units Activity

Transactions related to awards for the three months ended March 31, 2018 are summarized below:

	March 31, 2018
	Number of Awards		Weighted Average Grant Date Fair Value per Award
Unvested RSU Awards Outstanding beginning of period	472		$	24.82
Vested	(28	)	$	22.53
Unvested RSU Awards Outstanding end of period	444		$	23.55

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Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Dividends Transactions

The following table presents our common stock dividend transactions for the three months ended March 31, 2018.

Record Date	Payment Date	Rate per common share		Aggregate amount paid to holders of record
January 16, 2018	January 29, 2018	$	0.19	$	8,046
February 15, 2018	February 27, 2018	$	0.19	8,046
March 15, 2018	March 28, 2018	$	0.19	8,046
Total dividends paid				$	24,138

The following table presents our Series A Preferred Stock dividend transactions for the three months ended March 31, 2018.

Record Date	Payment Date	Rate per Series A Preferred Share		Aggregate amount paid to holders of record
January 15, 2018	January 29, 2018	$	0.17	$	374.8
February 15, 2018	February 27, 2018	$	0.17	374.8
March 15, 2018	March 27, 2018	$	0.17	374.8
Total dividends paid				$	1,124

The following table presents our Series B Preferred Stock dividend transactions for the three months ended March 31, 2018.

Record Date	Payment Date	Rate per Series B Preferred Share		Aggregate amount paid to holders of record
January 15, 2018	January 29, 2018	$	0.16	$	1,039
February 15, 2018	February 27, 2018	$	0.16	1,045
March 15, 2018	March 27, 2018	$	0.16	1,045
Total dividends paid				$	3,129

Schedule of Stock by Class

The following table presents our equity transactions for the three months ended March 31, 2018.

Transaction Type	Completion Date	Number of Shares	Per Share price (1)		Net Proceeds
Series B Preferred equity distribution agreement	January 2, 2018-January 26, 2018	107	$	24.62	$	2,632

(1) Weighted average price.

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Net Income per Common Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Schedule of Weighted Average Number of Shares

The following table presents a reconciliation of net income and the shares used in calculating weighted average basic and diluted earnings per common share for the three months ended March 31, 2018, and March 31, 2017.

	For the Three Months Ended March 31,
	2018			2017
Net Income	$	44,747		$	52,718
Less: Preferred dividends	(4,253		)	(3,905		)
Net Income available to common stockholders	$	40,494		$	48,813
Weighted average common shares outstanding – basic	41,887			36,724
Add: Effect of dilutive non-vested awards, assumed vested	444			24
Weighted average common shares outstanding – diluted	42,331			36,748

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Income Taxes (Tables)

3 Months Ended

Mar. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

The following table reconciles our GAAP net income to estimated REIT taxable income for the three months ended March 31, 2018 and March 31, 2017. 

	For the Three Months Ended March 31,
	2018			2017
GAAP net income	$	44,747		$	52,718
Book to tax differences:
TRS income	(168		)	—
Premium amortization expense	(435		)	(90		)
Credit Risk and Non-Agency Securities	(1,196		)	(24,942		)
Interest-Only Securities	(407		)	3,141
U.S. Treasury Securities	(2,576		)	—
Changes in interest rate contracts	(64,276		)	(22,153		)
Other than temporary loss on Agency Securities	12,090			—
Losses on Security Sales	32,603			11,154
Amortization of deferred hedging costs	(14,584		)	(14,904		)
Other	2			4
Estimated REIT taxable income	$	5,800		$	4,928

Summary of Tax Credit Carryforwards

Net capital losses realized	Amount		Available to offset capital gains though
2013	(579,322	)	2018
2014	(341,850	)	2019
2015	(5,182	)	2020
2016	(31,204	)	2021
2017	(7,375	)	2022

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Fair Value of Financial Instruments - Additional Information (Details)	3 Months Ended
	Mar. 31, 2018 dealer
Fair Value Disclosures [Abstract]
Number of dealers received quotes from, available for sale	3
Number of dealers received quotes from, trading	3

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Fair Value of Financial Instruments - Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Assets at Fair Value:
Derivatives, at fair value	$ 135,703	$ 37,211
Liabilities at Fair Value:
Derivatives	6,882	7,948
Credit Risk and Non-Agency Securities
Assets at Fair Value:
Securities, trading	968,950	975,829
Interest-Only Securities
Assets at Fair Value:
Securities, trading	24,933	25,752
US Treasury Securities
Assets at Fair Value:
Securities, trading	670,696	0
Fair Value, Measurements, Recurring
Assets at Fair Value:
Agency Securities	6,245,432	7,478,966
Derivatives, at fair value	135,703	37,211
Liabilities at Fair Value:
Derivatives	6,882	7,948
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets at Fair Value:
Agency Securities	0	0
Derivatives, at fair value	0	0
Liabilities at Fair Value:
Derivatives	0	0
Fair Value, Measurements, Recurring | Significant Observable Inputs (Level 2)
Assets at Fair Value:
Agency Securities	6,245,432	7,478,966
Derivatives, at fair value	135,703	37,211
Liabilities at Fair Value:
Derivatives	6,882	7,948
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Assets at Fair Value:
Agency Securities	0	0
Derivatives, at fair value	0	0
Liabilities at Fair Value:
Derivatives	0	0
Fair Value, Measurements, Recurring | Credit Risk and Non-Agency Securities
Assets at Fair Value:
Securities, trading	968,950	975,829
Fair Value, Measurements, Recurring | Credit Risk and Non-Agency Securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets at Fair Value:
Securities, trading	0	0
Fair Value, Measurements, Recurring | Credit Risk and Non-Agency Securities | Significant Observable Inputs (Level 2)
Assets at Fair Value:
Securities, trading	968,950	975,829
Fair Value, Measurements, Recurring | Credit Risk and Non-Agency Securities | Significant Unobservable Inputs (Level 3)
Assets at Fair Value:
Securities, trading	0	0
Fair Value, Measurements, Recurring | Interest-Only Securities
Assets at Fair Value:
Securities, trading	24,933	25,752
Fair Value, Measurements, Recurring | Interest-Only Securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets at Fair Value:
Securities, trading	0	0
Fair Value, Measurements, Recurring | Interest-Only Securities | Significant Observable Inputs (Level 2)
Assets at Fair Value:
Securities, trading	24,933	25,752
Fair Value, Measurements, Recurring | Interest-Only Securities | Significant Unobservable Inputs (Level 3)
Assets at Fair Value:
Securities, trading	0	$ 0
Fair Value, Measurements, Recurring | US Treasury Securities
Assets at Fair Value:
Securities, trading	670,696
Fair Value, Measurements, Recurring | US Treasury Securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets at Fair Value:
Securities, trading	670,696
Fair Value, Measurements, Recurring | US Treasury Securities | Significant Observable Inputs (Level 2)
Assets at Fair Value:
Securities, trading	0
Fair Value, Measurements, Recurring | US Treasury Securities | Significant Unobservable Inputs (Level 3)
Assets at Fair Value:
Securities, trading	$ 0

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Fair Value of Financial Instruments - Carrying Values and Fair Values of Financial Assets and Liabilities (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Assets:
Cash	$ 216,497,000	$ 265,232,000
Cash collateral posted to counterparties	0	0
Receivable for unsettled sales	0
Accrued interest receivable	0	0
Subordinated loans due from BUCKLER Securities LLC	0	0
Financial Liabilities:
Repurchase agreements	0	0
Cash collateral posted by counterparties	0	0
Payable for unsettled purchases	0
Accrued interest payable- repurchase agreements	0	0
Significant Observable Inputs (Level 2)
Financial Assets:
Cash	0	0
Cash collateral posted to counterparties	13,150,000	17,162,000
Receivable for unsettled sales	68,796,000
Accrued interest receivable	20,492,000	22,165,000
Subordinated loans due from BUCKLER Securities LLC	105,000,000	105,000,000
Financial Liabilities:
Repurchase agreements	6,853,715,000	7,555,917,000
Cash collateral posted by counterparties	127,721,000	29,593,000
Payable for unsettled purchases	227,409,000
Accrued interest payable- repurchase agreements	5,274,000	6,452,000
Significant Unobservable Inputs (Level 3)
Financial Assets:
Cash	0	0
Cash collateral posted to counterparties	0	0
Receivable for unsettled sales	0
Accrued interest receivable	0	0
Subordinated loans due from BUCKLER Securities LLC	0	0
Financial Liabilities:
Repurchase agreements	0	0
Cash collateral posted by counterparties	0	0
Payable for unsettled purchases	0
Accrued interest payable- repurchase agreements	0	0
Carrying Value
Financial Assets:
Cash	216,497,000	265,232,000
Cash collateral posted to counterparties	13,150,000	17,162,000
Receivable for unsettled sales	68,796,000	0
Accrued interest receivable	20,492,000	22,165,000
Subordinated loans due from BUCKLER Securities LLC	105,000,000	105,000,000
Financial Liabilities:
Repurchase agreements	6,853,715,000	7,555,917,000
Cash collateral posted by counterparties	127,721,000	29,593,000
Payable for unsettled purchases	227,409,000	0
Accrued interest payable- repurchase agreements	5,274,000	6,452,000
Fair Value
Financial Assets:
Cash	216,497,000	265,232,000
Cash collateral posted to counterparties	13,150,000	17,162,000
Receivable for unsettled sales	68,796,000
Accrued interest receivable	20,492,000	22,165,000
Subordinated loans due from BUCKLER Securities LLC	105,000,000	105,000,000
Financial Liabilities:
Repurchase agreements	6,853,715,000	7,555,917,000
Cash collateral posted by counterparties	127,721,000	29,593,000
Payable for unsettled purchases	227,409,000
Accrued interest payable- repurchase agreements	$ 5,274,000	$ 6,452,000

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Fair Value of Financial Instruments - Schedule of Level 3 Assets (Details) - Credit Risk and Non-Agency Securities - Significant Unobservable Inputs (Level 3) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	$ 0	$ 1,052,170
Purchases of Credit Risk and Non-Agency Securities, at cost	0	8,224
Principal repayments of Credit Risk and Non-Agency Securities	0	(16,088)
Gain on Credit Risk and Non-Agency Securities	0	24,284
Accretion of net discount on Credit Risk and Non-Agency Securities	0	848
Balance, end of period	0	1,069,438
Gain on Credit Risk and Non-Agency Securities	$ 0	$ 24,284

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Agency Securities - Additional Information (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Other than temporary impairment of Agency Securities (reclassified from Other comprehensive income)	$ 12,090,000	$ 0
Fair Value	6,245,432,000		$ 7,478,966,000
Gross realized gains (losses) from sale proceeds	1,137,792,000	1,387,366,000
Realized gain (loss) on sale of agency securities	(32,603,000)	(11,154,000)
Reported Value Measurement
Schedule of Available-for-sale Securities [Line Items]
Receivable for unsettled sales	68,796,000		0
Payable for unsettled purchases	227,409,000		0
Agency Securities
Schedule of Available-for-sale Securities [Line Items]
Other than temporary impairment of Agency Securities (reclassified from Other comprehensive income)	12,090,000		13,707,000
Fair Value	$ 681,827,000		$ 795,724,000
25-Year and 30-Year Fixed Rate Agency Securities
Schedule of Available-for-sale Securities [Line Items]
Other than temporary impairment of Agency Securities (reclassified from Other comprehensive income)		$ 0
Agency Securities
Schedule of Available-for-sale Securities [Line Items]
Weighted average coupon rate	3.71%		3.68%
Credit Risk and Non-Agency Securities | Portfolio Concentration Risk | Agency Securities
Schedule of Available-for-sale Securities [Line Items]
Percentage of portfolio invested	79.00%		88.20%

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Agency Securities - Unrealized Gain or Loss Position and Components of Carrying Value of Available for Sale Agency Securities (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 6,366,260	$ 7,499,077
Gross Unrealized Loss	(122,692)	(39,392)
Gross Unrealized Gain	1,864	19,281
Fair Value	$ 6,245,432	$ 7,478,966
Portfolio Concentration Risk | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Percent of Total	100.00%	100.00%
Fannie Mae
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 4,959,343	$ 5,895,221
Gross Unrealized Loss	(93,118)	(30,334)
Gross Unrealized Gain	1,680	18,255
Fair Value	$ 4,867,905	$ 5,883,142
Fannie Mae | Portfolio Concentration Risk | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Percent of Total	77.94%	78.67%
Fannie Mae | ARMs & Hybrids
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 26,277	$ 28,199
Gross Unrealized Loss	(304)	(229)
Gross Unrealized Gain	74	112
Fair Value	$ 26,047	$ 28,082
Fannie Mae | ARMs & Hybrids | Portfolio Concentration Risk | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Percent of Total	0.42%	0.38%
Fannie Mae | Multi-Family MBS
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 1,482,115	$ 1,799,737
Gross Unrealized Loss	(19,283)	(5,132)
Gross Unrealized Gain	1,235	16,950
Fair Value	$ 1,464,067	$ 1,811,555
Fannie Mae | Multi-Family MBS | Portfolio Concentration Risk | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Percent of Total	23.44%	24.22%
Fannie Mae | 10 Year Fixed
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 28,927	$ 60,634
Gross Unrealized Loss	(403)	(347)
Gross Unrealized Gain	90	137
Fair Value	$ 28,614	$ 60,424
Fannie Mae | 10 Year Fixed | Portfolio Concentration Risk | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Percent of Total	0.46%	0.81%
Fannie Mae | 15 Year Fixed
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 939,147	$ 1,028,797
Gross Unrealized Loss	(11,784)	(4,955)
Gross Unrealized Gain	0	625
Fair Value	$ 927,363	$ 1,024,467
Fannie Mae | 15 Year Fixed | Portfolio Concentration Risk | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Percent of Total	14.85%	13.70%
Fannie Mae | 20 Year Fixed
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 28,155	$ 29,832
Gross Unrealized Loss	(1,016)	(621)
Gross Unrealized Gain	0	0
Fair Value	$ 27,139	$ 29,211
Fannie Mae | 20 Year Fixed | Portfolio Concentration Risk | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Percent of Total	0.43%	0.39%
Fannie Mae | 25 Year Fixed
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 25,185	$ 9,367
Gross Unrealized Loss	(669)	(140)
Gross Unrealized Gain	0	0
Fair Value	$ 24,516	$ 9,227
Fannie Mae | 25 Year Fixed | Portfolio Concentration Risk | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Percent of Total	0.39%	0.12%
Fannie Mae | 30 Year Fixed
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 2,429,537	$ 2,938,655
Gross Unrealized Loss	(59,659)	(18,910)
Gross Unrealized Gain	281	431
Fair Value	$ 2,370,159	$ 2,920,176
Fannie Mae | 30 Year Fixed | Portfolio Concentration Risk | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Percent of Total	37.95%	39.05%
Freddie Mac
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 1,370,900	$ 1,565,099
Gross Unrealized Loss	(29,036)	(8,526)
Gross Unrealized Gain	181	1,015
Fair Value	$ 1,342,045	$ 1,557,588
Freddie Mac | Portfolio Concentration Risk | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Percent of Total	21.49%	20.82%
Freddie Mac | 10 Year Fixed
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 32,886	$ 37,254
Gross Unrealized Loss	(262)	(158)
Gross Unrealized Gain	168	228
Fair Value	$ 32,792	$ 37,324
Freddie Mac | 10 Year Fixed | Portfolio Concentration Risk | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Percent of Total	0.53%	0.50%
Freddie Mac | 15 Year Fixed
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 337,047	$ 354,878
Gross Unrealized Loss	(1,391)	(211)
Gross Unrealized Gain	13	787
Fair Value	$ 335,669	$ 355,454
Freddie Mac | 15 Year Fixed | Portfolio Concentration Risk | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Percent of Total	5.37%	4.75%
Freddie Mac | 25 Year Fixed
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 40,390	$ 41,383
Gross Unrealized Loss	(1,770)	(857)
Gross Unrealized Gain	0	0
Fair Value	$ 38,620	$ 40,526
Freddie Mac | 25 Year Fixed | Portfolio Concentration Risk | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Percent of Total	0.62%	0.54%
Freddie Mac | 30 Year Fixed
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 960,577	$ 1,131,584
Gross Unrealized Loss	(25,613)	(7,300)
Gross Unrealized Gain	0	0
Fair Value	$ 934,964	$ 1,124,284
Freddie Mac | 30 Year Fixed | Portfolio Concentration Risk | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Percent of Total	14.97%	15.03%
Ginnie Mae
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 36,017	$ 38,757
Gross Unrealized Loss	(538)	(532)
Gross Unrealized Gain	3	11
Fair Value	$ 35,482	$ 38,236
Ginnie Mae | Portfolio Concentration Risk | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Percent of Total	0.57%	0.51%
Ginnie Mae | ARMs & Hybrids
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 35,762	$ 38,494
Gross Unrealized Loss	(538)	(532)
Gross Unrealized Gain	1	4
Fair Value	$ 35,225	$ 37,966
Ginnie Mae | ARMs & Hybrids | Portfolio Concentration Risk | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Percent of Total	0.57%	0.51%
Ginnie Mae | 10 Year Fixed
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 255	$ 263
Gross Unrealized Loss	0	0
Gross Unrealized Gain	2	7
Fair Value	$ 257	$ 270
Ginnie Mae | 10 Year Fixed | Portfolio Concentration Risk | Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Percent of Total	0.00%	0.00%

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Agency Securities - Summary of Weighted Average Lives of Agency Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Fair Value
Less than one year	$ 0	$ 0
Greater than or equal to one year and less than three years	41,918	29,126
Greater than or equal to three years and less than five years	1,133,824	1,353,036
Greater than or equal to five years	5,069,690	6,096,804
Total Agency Securities	6,245,432	7,478,966
Amortized Cost
Less than one year	0	0
Greater than or equal to one year and less than three years	41,986	29,269
Greater than or equal to three years and less than five years	1,144,807	1,353,998
Greater than or equal to five years	5,179,467	6,115,810
Amortized Cost	$ 6,366,260	$ 7,499,077

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Agency Securities - Gross Unrealized Losses and Estimated Fair Value of Agency Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Fair Value
Less than 12 Months	$ 4,208,407	$ 4,355,924
12 Months or More	932,085	733,637
Total	5,140,492	5,089,561
Unrealized Losses
Less than 12 Months	(93,373)	(28,906)
12 Months or More	(29,319)	(10,486)
Total	$ (122,692)	$ (39,392)

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Credit Risk and Non-Agency Securities - Additional Information (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Credit Risk and Non-Agency Securities | Credit Risk and Non-Agency Securities | Portfolio Concentration Risk
Schedule of Trading Securities and Other Trading Assets [Line Items]
Percentage of portfolio invested	12.20%	11.50%

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Credit Risk and Non-Agency Securities - Carrying Value of Non-Agency Securities (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Credit Risk Transfer
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities, trading	$ 866,736	$ 870,494
Credit risk and non-agency securities, amortized cost	748,078	753,422
Credit risk and non-agency securities, principal amount	$ 758,090	$ 764,172
Credit risk and non-agency securities, weighted average coupon	6.37%	6.05%
Legacy Prime Fixed
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities, trading	$ 16,267	$ 16,778
Credit risk and non-agency securities, amortized cost	14,766	15,287
Credit risk and non-agency securities, principal amount	$ 18,585	$ 19,237
Credit risk and non-agency securities, weighted average coupon	6.03%	6.03%
Legacy ALT-A Fixed
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities, trading	$ 53,401	$ 54,727
Credit risk and non-agency securities, amortized cost	47,129	48,516
Credit risk and non-agency securities, principal amount	$ 64,175	$ 65,920
Credit risk and non-agency securities, weighted average coupon	5.58%	5.85%
Legacy Prime Hybrid
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities, trading	$ 9,874	$ 10,469
Credit risk and non-agency securities, amortized cost	9,006	9,517
Credit risk and non-agency securities, principal amount	$ 10,821	$ 11,452
Credit risk and non-agency securities, weighted average coupon	3.27%	3.17%
Legacy ALT-A Hybrid
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities, trading	$ 4,476	$ 4,660
Credit risk and non-agency securities, amortized cost	3,763	3,895
Credit risk and non-agency securities, principal amount	$ 4,708	$ 4,901
Credit risk and non-agency securities, weighted average coupon	3.55%	3.47%
New Issue Prime Fixed
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities, trading	$ 18,196	$ 18,701
Credit risk and non-agency securities, amortized cost	17,689	17,957
Credit risk and non-agency securities, principal amount	$ 18,716	$ 19,025
Credit risk and non-agency securities, weighted average coupon	3.69%	3.69%
Credit Risk and Non-Agency Securities
Schedule of Trading Securities and Other Trading Assets [Line Items]
Securities, trading	$ 968,950	$ 975,829
Credit risk and non-agency securities, amortized cost	840,431	848,594
Credit risk and non-agency securities, principal amount	$ 875,095	$ 884,707
Credit risk and non-agency securities, weighted average coupon	6.22%	5.95%

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Credit Risk and Non-Agency Securities - Weighted Average Life of all Non-Agency Securities (Details) - Credit Risk and Non-Agency Securities - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Fair Value
Less than one year	$ 0	$ 0
Greater than or equal to one year and less than three years	0	0
Greater than or equal to three years and less than five years	152,518	169,189
Greater than or equal to five years	816,432	806,640
Securities, trading	968,950	975,829
Amortized Cost
Less than one year	0	0
Greater than or equal to one year and less than three years	0	0
Greater than or equal to three years and less than five years	134,877	149,436
Greater than or equal to five years	705,554	699,158
Trading securities, amortized cost	$ 840,431	$ 848,594

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U.S. Treasury Securities - Unrealized Gain or (Loss) Position (Details) - US Treasury Securities - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Schedule of Trading Securities and Other Trading Assets [Line Items]
Amortized Cost	$ 668,120
Gross Unrealized Loss	(281)
Gross Unrealized Gain	2,857
Fair Value	$ 670,696	$ 0
Portfolio Concentration Risk | US Treasury Securities
Schedule of Trading Securities and Other Trading Assets [Line Items]
Percentage of portfolio invested	8.50%

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U.S. Treasury Securities - Unrealized Losses and Estimated Fair Value (Details) - US Treasury Securities $ in Thousands	Mar. 31, 2018 USD ($)
Fair Value
Less than 12 Months	$ 99,180
12 Months or More	0
Total	99,180
Unrealized Losses
Less than 12 Months	(281)
12 Months or More	0
Total	$ (281)

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Repurchase Agreements - Additional Information (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018 USD ($) counterparty	Dec. 31, 2017 USD ($) counterparty
Concentration Risk [Line Items]
Number of counterparties with MRAs	46	46
Number of counterparties with repurchase agreements outstanding	27	32
Counterparty Concentration Risk | BUCKLER Securities, LLC | Aggregate Borrowings
Concentration Risk [Line Items]
Percentage of portfolio invested	53.90%	38.40%
Counterparty Concentration Risk | BUCKLER Securities, LLC | Stockholders' Equity
Concentration Risk [Line Items]
Percentage of portfolio invested	11.00%	9.00%
Weighted average maturity	20 days	70 days
Counterparty Concentration Risk | One Repurchase Agreement Counterparty | Aggregate Borrowings
Concentration Risk [Line Items]
Number of counterparties	1	1
Percentage of portfolio invested	5.00%	10.00%
Counterparty Concentration Risk | One Repurchase Agreement Counterparty | Repurchase Agreement Borrowings
Concentration Risk [Line Items]
Percentage of portfolio invested	5.40%	5.10%
Maximum
Concentration Risk [Line Items]
Ratio of indebtedness to net capital	12
Carrying Value
Concentration Risk [Line Items]
Repurchase agreements | $	$ 6,853,715	$ 7,555,917

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Repurchase Agreements - Contractual Repricing on Repurchase Agreements (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	$ 6,853,715	$ 7,555,917
Weighted Average Contractual Rate	2.00%	1.71%
Weighted Average Maturity in days	22 days	51 days
Haircut for Repurchase Agreements	5.84%	6.39%
Agency Securities
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	$ 5,481,911	$ 6,793,481
Weighted Average Contractual Rate	1.92%	1.60%
Weighted Average Maturity in days	25 days	55 days
Haircut for Repurchase Agreements	4.18%	4.29%
Credit Risk and Non-Agency Securities
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	$ 708,650	$ 762,436
Weighted Average Contractual Rate	2.85%	2.67%
Weighted Average Maturity in days	14 days	15 days
Haircut for Repurchase Agreements	20.39%	21.68%
US Treasury Securities
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	$ 663,154
Weighted Average Contractual Rate	1.79%
Weighted Average Maturity in days	1 day
Haircut for Repurchase Agreements	0.69%

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Repurchase Agreements - Repurchase Agreements by Maturity Period (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	$ 6,853,715	$ 7,555,917
Weighted Average Contractual Rate	2.00%	1.71%
Within 30 days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	$ 4,883,094	$ 1,738,768
Weighted Average Contractual Rate	2.05%	2.08%
31 days to 60 days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	$ 1,213,295	$ 2,394,450
Weighted Average Contractual Rate	1.90%	1.59%
61 days to 90 days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase Agreements	$ 757,326	$ 3,422,699
Weighted Average Contractual Rate	1.90%	1.61%

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Derivatives - Interest Rate Swap Contracts, Swaptions and Futures Contracts (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Derivative [Line Items]
Notional Amount	$ 11,100,000	$ 6,850,000
Derivatives Fair Value	135,703	37,211
Liability Fair Value	(6,882)	$ (7,948)
Forward settling swap contracts	$ 500,000
Interest Rate Swap 0-12 Months
Derivative [Line Items]
Weighted Average Remaining Swap/Option Term (Months)	2 months	5 months
Weighted Average Rate	0.92%	0.92%
Notional Amount	$ 50,000	$ 50,000
Derivatives Fair Value	203	191
Liability Fair Value	$ 0	$ 0
Interest Rate Swap 13-24 Months
Derivative [Line Items]
Weighted Average Remaining Swap/Option Term (Months)	20 months	23 months
Weighted Average Rate	1.21%	1.21%
Notional Amount	$ 550,000	$ 550,000
Derivatives Fair Value	8,658	6,398
Liability Fair Value	$ 0	$ 0
Interest Rate Swap 25-36 Months
Derivative [Line Items]
Weighted Average Remaining Swap/Option Term (Months)	32 months	30 months
Weighted Average Rate	1.83%	1.48%
Notional Amount	$ 1,675,000	$ 675,000
Derivatives Fair Value	16,255	5,495
Liability Fair Value	$ 0	$ 0
Interest Rate Swap 61-72 Months
Derivative [Line Items]
Weighted Average Remaining Swap/Option Term (Months)		65 months
Weighted Average Rate		1.97%
Notional Amount		$ 1,975,000
Derivatives Fair Value		11,624
Liability Fair Value		$ (250)
Interest Rate Swap 73-84 Months
Derivative [Line Items]
Weighted Average Remaining Swap/Option Term (Months)	68 months	79 months
Weighted Average Rate	1.98%	1.89%
Notional Amount	$ 2,650,000	$ 575,000
Derivatives Fair Value	64,861	3,306
Liability Fair Value	$ (142)	$ (1,885)
Interest Rate Swap 85-96 Months
Derivative [Line Items]
Weighted Average Remaining Swap/Option Term (Months)	96 months
Weighted Average Rate	1.95%
Notional Amount	$ 50,000
Derivatives Fair Value	1,493
Liability Fair Value	$ 0
Interest Rate Swap 97-108 Months
Derivative [Line Items]
Weighted Average Remaining Swap/Option Term (Months)	104 months	107 months
Weighted Average Rate	1.95%	1.93%
Notional Amount	$ 1,200,000	$ 1,050,000
Derivatives Fair Value	37,399	9,263
Liability Fair Value	$ 0	$ (10)
Interest Rate Swap 109-120 Months
Derivative [Line Items]
Weighted Average Remaining Swap/Option Term (Months)	118 months	114 months
Weighted Average Rate	2.33%	2.10%
Notional Amount	$ 625,000	$ 375,000
Derivatives Fair Value	3,175	0
Liability Fair Value	(2,455)	(3,545)
TBA Agency Securities
Derivative [Line Items]
Notional Amount	4,300,000	1,600,000
Derivatives Fair Value	3,659	934
Liability Fair Value	(4,285)	(2,258)
Implied cost basis	4,425,348	1,674,438
Implied market value	4,424,721	$ 1,673,113
Forward settling swap contracts	$ 1,750,000
Minimum | Interest Rate Swap 0-12 Months
Derivative [Line Items]
Derivative, remaining maturity (in months)	0 months	0 months
Minimum | Interest Rate Swap 13-24 Months
Derivative [Line Items]
Derivative, remaining maturity (in months)	13 months	13 months
Minimum | Interest Rate Swap 25-36 Months
Derivative [Line Items]
Derivative, remaining maturity (in months)	25 months	25 months
Minimum | Interest Rate Swap 61-72 Months
Derivative [Line Items]
Derivative, remaining maturity (in months)		61 months
Minimum | Interest Rate Swap 73-84 Months
Derivative [Line Items]
Derivative, remaining maturity (in months)	73 months	73 months
Minimum | Interest Rate Swap 85-96 Months
Derivative [Line Items]
Derivative, remaining maturity (in months)	85 months
Minimum | Interest Rate Swap 97-108 Months
Derivative [Line Items]
Derivative, remaining maturity (in months)	97 months	97 months
Minimum | Interest Rate Swap 109-120 Months
Derivative [Line Items]
Derivative, remaining maturity (in months)	109 months	109 months
Minimum | TBA Agency Securities
Derivative [Line Items]
Derivative, remaining maturity (in months)		0 months
Maximum | Interest Rate Swap 0-12 Months
Derivative [Line Items]
Derivative, remaining maturity (in months)	12 months	12 months
Maximum | Interest Rate Swap 13-24 Months
Derivative [Line Items]
Derivative, remaining maturity (in months)	24 months	24 months
Maximum | Interest Rate Swap 25-36 Months
Derivative [Line Items]
Derivative, remaining maturity (in months)	36 months	36 months
Maximum | Interest Rate Swap 61-72 Months
Derivative [Line Items]
Derivative, remaining maturity (in months)		72 months
Maximum | Interest Rate Swap 73-84 Months
Derivative [Line Items]
Derivative, remaining maturity (in months)	84 months	84 months
Maximum | Interest Rate Swap 85-96 Months
Derivative [Line Items]
Derivative, remaining maturity (in months)	96 months
Maximum | Interest Rate Swap 97-108 Months
Derivative [Line Items]
Derivative, remaining maturity (in months)	108 months	108 months
Maximum | Interest Rate Swap 109-120 Months
Derivative [Line Items]
Derivative, remaining maturity (in months)	120 months	120 months
Maximum | TBA Agency Securities
Derivative [Line Items]
Derivative, remaining maturity (in months)		60 months

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Derivatives - Offsetting Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Offsetting Assets [Line Items]
Gross Amounts of Assets Presented in the Consolidated Balance Sheet	$ 135,703	$ 37,211
Derivatives Fair Value	135,703	37,211
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments	(6,882)	(7,948)
Gross Amounts Not Offset in the Consolidated Balance Sheet, Net Cash Collateral Held	(114,734)	(14,621)
Net Amount	14,087	14,642
Interest rate swap contracts
Offsetting Assets [Line Items]
Gross Amounts of Assets Presented in the Consolidated Balance Sheet	132,044	36,277
Derivatives Fair Value	132,044	36,277
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments	(2,597)	(5,690)
Gross Amounts Not Offset in the Consolidated Balance Sheet, Net Cash Collateral Held	(120,317)	(22,689)
Net Amount	9,130	7,898
TBA Agency Securities
Offsetting Assets [Line Items]
Gross Amounts of Assets Presented in the Consolidated Balance Sheet	3,659	934
Derivatives Fair Value	3,659	934
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments	(4,285)	(2,258)
Gross Amounts Not Offset in the Consolidated Balance Sheet, Net Cash Collateral Held	5,583	8,068
Net Amount	$ 4,957	$ 6,744

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Derivatives - Offsetting Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Offsetting Liabilities [Line Items]
Gross Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheet	$ (6,882)	$ (7,948)
Net Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheet	(6,882)	(7,948)
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments	6,882	7,948
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral Posted	0	0
Net Amount	0	0
Interest rate swap contracts
Offsetting Liabilities [Line Items]
Gross Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheet	(2,597)	(5,690)
Net Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheet	(2,597)	(5,690)
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments	2,597	5,690
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral Posted	0	0
Net Amount	0	0
TBA Agency Securities
Offsetting Liabilities [Line Items]
Gross Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheet	(4,285)	(2,258)
Net Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheet	(4,285)	(2,258)
Gross Amounts Not Offset in the Consolidated Balance Sheet, Financial Instruments	4,285	2,258
Gross Amounts Not Offset in the Consolidated Balance Sheet, Cash Collateral Posted	0	0
Net Amount	$ 0	$ 0

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Derivatives - Location and Information of Derivatives (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Realized gain	[1]	$ (38,604)	$ (12,249)
Changes in fair value		97,201	23,768
Subtotal		58,597	11,519
Interest rate swap contracts
Derivative Instruments, Gain (Loss) [Line Items]
Subtotal		89,305	7,180
Interest rate swap contracts | Realized loss on derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Realized gain		2,655	0
Interest income		22,169	8,374
Interest expense		(27,848)	(19,008)
Interest rate swap contracts | Unrealized gain on derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Changes in fair value		92,329	17,814
TBA Agency Securities
Derivative Instruments, Gain (Loss) [Line Items]
Subtotal		(30,708)	4,339
TBA Agency Securities | Realized loss on derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Realized gain		(35,580)	(1,615)
TBA Agency Securities | Unrealized gain on derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Changes in fair value		$ 4,872	$ 5,954

[1] Interest expense related to our interest rate swap contracts is recorded as realized loss on derivatives on the consolidated statements of operations. For additional information, see financial statement Note 10.

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Commitments and Contingencies (Details) $ in Thousands	Apr. 25, 2016 lawsuit	Apr. 24, 2016 lawsuit	Mar. 01, 2016 lawsuit defendant	Mar. 31, 2018 USD ($)	Mar. 31, 2017 USD ($)
Other Commitments [Line Items]
Monthly percentage of effective management fee percentage				8.33%
Gross equity raised | $				$ 2,620,693	$ 2,469,368
Transactions
Other Commitments [Line Items]
Number of new claims filed | lawsuit	1	8	9
Number of defendants that are current directors | defendant			8
ACM
Other Commitments [Line Items]
Percentage of gross equity raised used in calculation of management fee up to 1 Billion				1.50%
Percentage of gross equity raised used in calculation of management fee in excess of 1 Billion				0.75%
Effective management fee percentage				1.04%	1.05%

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Stock Based Compensation - Additional Information (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) $ / shares shares
Board of Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonemployee services transaction, quarterly fee | $	$ 33
The 2009 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares authorized (in shares) | shares	1,875,000
Common stock, shares outstanding (in shares) | shares	1,137,000
Compensation cost not yet recognized | $	$ 10,457
Share price (in dollars per share) | $ / shares	$ 23.55
Period for recognition for compensation cost not yet recognized	3 years 4 months 24 days

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Stock Based Compensation - Restricted Shares (Details) - The 2009 Stock Incentive Plan - Restricted Stock shares in Thousands	3 Months Ended
	Mar. 31, 2018 $ / shares shares
Number of Awards
Unvested RSU Awards Outstanding beginning of period (in shares) | shares	472
Vested (in shares) | shares	(28)
Unvested RSU Awards Outstanding end of period (in shares) | shares	444
Weighted Average Grant Date Fair Value per Award
Unvested RSU Awards Outstanding beginning of period (in dollars per share) | $ / shares	$ 24.82
Vested (in dollars per share) | $ / shares	22.53
Unvested RSU Awards Outstanding end of period (in dollars per share) | $ / shares	$ 23.55

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Stockholders' Equity - Additional Information (Details) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018 USD ($) director $ / shares shares	Dec. 31, 2017 USD ($) $ / shares shares	Oct. 02, 2017 $ / shares shares	Aug. 30, 2017 shares
Class of Stock [Line Items]
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.001	$ 0.001
Preferred stock, undesignated shares authorized (in shares)	32,740,000
Shares issued | $	$ 2,632
Common stock, shares outstanding (in shares)	41,902,000	41,877,000
Common stock, shares authorized (in shares)	125,000,000	125,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.001	$ 0.001
Common stock, shares issued (in shares)	41,902,000	41,877,000
Remaining shares authorized to be repurchased (in shares)	1,874,000	1,874,000
At-The-Market Offering Program
Class of Stock [Line Items]
Common stock, shares authorized (in shares)			5,000,000
Common stock, par value (in dollars per share) | $ / shares			$ 0.001
Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares authorized (in shares)	9,610,000
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.001	$ 0.001
Preferred stock, dividend rate	8.25%	8.25%
Preferred stock, shares issued (in shares)	2,181,000	2,181,000
Preferred stock, shares outstanding (in shares)	2,181,000	2,181,000
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares	$ 25.00	$ 25.00
Preferred stock, aggregate liquidation preference | $	$ 54,514	$ 54,514
Preferred stock, designated but unissued shares authorized (in shares)	7,429,000
Preferred stock, period stock receives voting rights if dividends are not paid (in months)	18 months
Number of additional directors elected | director	2
Series B Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares authorized (in shares)	7,650,000			2,000,000
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.001	$ 0.001
Preferred stock, dividend rate	7.875%	7.875%
Preferred stock, shares issued (in shares)	6,369,000	6,262,000
Preferred stock, shares outstanding (in shares)	6,369,000	6,262,000
Preferred stock, liquidation preference per share (in dollars per share) | $ / shares	$ 25.00	$ 25.00
Preferred stock, aggregate liquidation preference | $	$ 159,232	$ 156,560
Preferred stock, designated but unissued shares authorized (in shares)	1,281,000
Preferred stock, period stock receives voting rights if dividends are not paid (in months)	18 months
Number of additional directors elected | director	2
Payments of stock issuance costs | $	$ 42
Preferred Stock | Series B Preferred Stock
Class of Stock [Line Items]
Shares issued (in shares)	107,000
Additional Paid-in Capital
Class of Stock [Line Items]
Shares issued | $	$ 2,632
Additional Paid-in Capital | Series B Preferred Stock
Class of Stock [Line Items]
Shares issued | $	$ 2,632

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Stockholders' Equity - Dividend Transactions (Details) - USD ($)					3 Months Ended
	Mar. 28, 2018	Mar. 27, 2018	Feb. 27, 2018	Jan. 29, 2018	Mar. 31, 2018	Mar. 31, 2017
Class of Stock [Line Items]
Common stock dividends cash paid (in dollars per share)	$ 0.19		$ 0.19	$ 0.19
Aggregate amount paid to holders of record	$ 8,046,000		$ 8,046,000	$ 8,046,000	$ 24,138,000	$ 20,951,000
Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock dividends cash paid (in dollars per share)		$ 0.17	$ 0.17	$ 0.17
Aggregate amount paid to holders of record		$ 374,800	$ 374,800	$ 374,800	1,124,000	1,124,000
Series B Preferred Stock
Class of Stock [Line Items]
Preferred stock dividends cash paid (in dollars per share)		$ 0.16	$ 0.16	$ 0.16
Aggregate amount paid to holders of record		$ 1,045,000	$ 1,045,000	$ 1,039,000	$ 3,129,000	$ 2,781,000

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Stockholders' Equity - Equity Capital Raising Activities (Details) - Series B Preferred Equity Distribution Agreement - Series B Preferred Stock $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) $ / shares shares
Class of Stock [Line Items]
Number of shares (in shares) | shares	107
Price per share (in dollars per share) | $ / shares	$ 24.62
Net proceeds | $	$ 2,632

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Net Income per Common Share (Details) - Reconciliation of Net Income (Loss) and Shares Used in Calculating Basic and Diluted Earnings Per Share - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share [Abstract]
Net Income	$ 44,747	$ 52,718
Less: Preferred dividends	(4,253)	(3,905)
Net Income available to common stockholders	$ 40,494	$ 48,813
Weighted average common shares outstanding – basic (in shares)	41,887	36,724
Add: Effect of dilutive non-vested awards, assumed vested (in shares)	444	24
Weighted average common shares outstanding – diluted (in shares)	42,331	36,748

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Income Taxes - Reconciliation of GAAP Net Income to Estimated REIT Taxable Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Tax Disclosure [Abstract]
GAAP net income	$ 44,747	$ 52,718
Book to tax differences:
TRS income	(168)	0
Premium amortization expense	(435)	(90)
Credit Risk and Non-Agency Securities	(1,196)	(24,942)
Interest-Only Securities	(407)	3,141
U.S. Treasury Securities	(2,576)	0
Changes in interest rate contracts	(64,276)	(22,153)
Other than temporary loss on Agency Securities	12,090	0
Losses on Security Sales	32,603	11,154
Amortization of deferred hedging costs	(14,584)	(14,904)
Other	2	4
Estimated REIT taxable income	$ 5,800	$ 4,928

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Income Taxes - Additional Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 25
Aggregate tax basis of stockholders' equity in excess of assets and liabilities	$ 95,148
Aggregate tax basis of stockholders' equity in excess of assets and liabilities (in dollars per share)	$ 2.27
Common stock, shares issued (in shares)	41,902		41,877
Payment of dividends	$ 28,391	$ 24,856
Estimated REIT taxable income	$ 5,800	$ 4,928

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Income Taxes - Net Capital Losses Realized (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Capital Loss Carryforward
Tax Credit Carryforward [Line Items]
Tax credit carryforward	$ (7,375)	$ (31,204)	$ (5,182)	$ (341,850)	$ (579,322)

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Related Party Transactions (Details) - USD ($)	1 Months Ended	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Related Party Transaction [Line Items]
Management fees		$ 6,801,000	$ 6,521,000
ACM
Related Party Transaction [Line Items]
Period of written notice of termination (in days)		180 days
Management agreement, annual management fee		$ 1
Management fees		$ 6,801,000	6,521,000
ACM | Armour Management Agreement
Related Party Transaction [Line Items]
Automatic renewal period of management agreement (in years)		5 years
ACM | Javelin Management Agreement
Related Party Transaction [Line Items]
Automatic renewal period of management agreement (in years)		1 year
ACM | Other Expense
Related Party Transaction [Line Items]
Management fees		$ 47,000	355,000
ACM | Stock Based Compensation Expense
Related Party Transaction [Line Items]
Management fees		108,000	83,000
Javelin Mortgage Investment Corp. | Management Fee
Related Party Transaction [Line Items]
Management fees			$ 565,000
Corporate Joint Venture | BUCKLER Securities, LLC
Related Party Transaction [Line Items]
Payments to acquire equity method investments	$ 352,000
Percentage of voting interests acquired	10.00%		10.00%
Equity method investments		39,000
Due to related parties		3,697,089,000		$ 2,903,769,000
Corporate Joint Venture | Required Regulatory Capital Requirement of Related Party | BUCKLER Securities, LLC
Related Party Transaction [Line Items]
Loans receivable, related parties		$ 105,000,000
Related party transaction, rate		0.00%
Loans and leases receivable, related parties, proceeds		$ 280,000
Due from related parties, current		344,000
Corporate Joint Venture | BUCKLER Subordinated Loan Due April 25, 2020 | BUCKLER Securities, LLC
Related Party Transaction [Line Items]
Loans receivable, related parties		25,000,000
Corporate Joint Venture | BUCKLER Subordinated Loan Due August 31, 2020 | BUCKLER Securities, LLC
Related Party Transaction [Line Items]
Loans receivable, related parties		15,000,000
Corporate Joint Venture | BUCKLER Subordinated Loan Due August 31, 2019 | BUCKLER Securities, LLC
Related Party Transaction [Line Items]
Loans receivable, related parties		$ 65,000,000

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Subsequent Events - Additional Information (Details) - USD ($)						3 Months Ended
	Apr. 27, 2018	Mar. 28, 2018	Mar. 27, 2018	Feb. 27, 2018	Jan. 29, 2018	Mar. 31, 2018	Mar. 31, 2017
Subsequent Event [Line Items]
Common stock dividends cash paid (in dollars per share)		$ 0.19		$ 0.19	$ 0.19
Aggregate amount paid to holders of record		$ 8,046,000		$ 8,046,000	$ 8,046,000	$ 24,138,000	$ 20,951,000
Common stock dividends declared per common share (in dollars per share)						$ 0.57	$ 0.57
Series A Preferred Stock
Subsequent Event [Line Items]
Aggregate amount paid to holders of record			$ 374,800	374,800	374,800	$ 1,124,000	$ 1,124,000
Series B Preferred Stock
Subsequent Event [Line Items]
Aggregate amount paid to holders of record			$ 1,045,000	$ 1,045,000	$ 1,039,000	$ 3,129,000	$ 2,781,000
Subsequent Event
Subsequent Event [Line Items]
Common stock dividends cash paid (in dollars per share)	$ 0.19
Aggregate amount paid to holders of record	$ 8,045,000
Common stock dividends declared per common share (in dollars per share)	$ 0.19
Subsequent Event | Series A Preferred Stock
Subsequent Event [Line Items]
Preferred stock, dividends declared (in dollars per share)	$ 0.17
Aggregate amount paid to holders of record	$ 375,000
Subsequent Event | Series B Preferred Stock
Subsequent Event [Line Items]
Preferred stock, dividends declared (in dollars per share)	$ 0.16
Aggregate amount paid to holders of record	$ 1,045,000