UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-Q
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended March 31, 20202021
OR
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934
Commission file number 001-34057
001-34057
agnc-20210331_g1.jpg


AGNC INVESTMENT CORP.
(Exact name of registrant as specified in its charter)

Delaware26-1701984
(State or Other Jurisdiction of

Incorporation or Organization)
(I.R.S. Employer

Identification No.)
2 Bethesda Metro Center, 12th Floor
Bethesda,, Maryland20814
(Address of principal executive offices)
(301) (301) 968-9315
(Registrant’s telephone number, including area code)
 __________________________________________________
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading Symbol(s)Name of Exchange on Which Registered
Common Stock, par value $0.01 per shareAGNCThe Nasdaq Global Select Market
Depositary shares of 7.000% Series C Fixed-to-Floating Rate Cumulative Redeemable Preferred StockAGNCNThe Nasdaq Global Select Market
Depositary shares of 6.875% Series D Fixed-to-Floating Rate Cumulative Redeemable Preferred StockAGNCMThe Nasdaq Global Select Market
Depositary shares of 6.50% Series E Fixed-to-Floating Rate Cumulative Redeemable Preferred StockAGNCOThe Nasdaq Global Select Market
Depositary shares of 6.125% Series F Fixed-to-Floating Rate Cumulative Redeemable Preferred StockAGNCPThe Nasdaq Global Select Market
Securities Registered Pursuant to Section 12(g) of the Act: None
Indicate by check mark whether the registrant (1) has filed all reports 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  ☐
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).   Yes  x    No  ☐
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 definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Large accelerated filerAccelerated filer
Non-accelerated filerSmaller Reporting Company
Non-accelerated filerEmerging growth companySmaller Reporting Company
Emerging growth company
If an emerging growth company, indicate by check mark if 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. ¨
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes      No  x
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading Symbol(s)Name of Exchange on Which Registered
Common Stock, par value $0.01 per shareAGNCThe Nasdaq Global Select Market
Depositary shares of 7.000% Series C Fixed-to-Floating Rate Cumulative Redeemable Preferred StockAGNCNThe Nasdaq Global Select Market
Depositary shares of 6.875% Series D Fixed-to-Floating Rate Cumulative Redeemable Preferred StockAGNCMThe Nasdaq Global Select Market
Depositary shares of 6.50% Series E Fixed-to-Floating Rate Cumulative Redeemable Preferred StockAGNCOThe Nasdaq Global Select Market
Depositary shares of 6.125% Series F Fixed-to-Floating Rate Cumulative Redeemable Preferred StockAGNCPThe Nasdaq Global Select Market

The number of shares of the issuer's common stock, $0.01 par value, outstanding as of April 30, 20202021 was 559,356,584.

524,907,212.





AGNC INVESTMENT CORP.
TABLE OF CONTENTS
 


1


PART I. FINANCIAL INFORMATION
Item 1. Financial Statements

AGNC INVESTMENT CORP.
CONSOLIDATED BALANCE SHEETS
(in millions, except per share data)

March 31, 2020 December 31, 2019 March 31, 2021December 31, 2020
(Unaudited)  (Unaudited)
Assets:   Assets:
Agency securities, at fair value (including pledged securities of $64,154 and $92,608, respectively)$70,292
 $98,516
Agency securities, at fair value (including pledged securities of $56,343 and $53,698, respectively)Agency securities, at fair value (including pledged securities of $56,343 and $53,698, respectively)$63,286 $64,836 
Agency securities transferred to consolidated variable interest entities, at fair value (pledged securities)358
 371
Agency securities transferred to consolidated variable interest entities, at fair value (pledged securities)270 295 
Credit risk transfer securities, at fair value (including pledged securities of $360 and $309, respectively)574
 976
Non-Agency securities, at fair value (including pledged securities of $437 and $0, respectively)552
 579
U.S. Treasury securities, at fair value (pledged securities)3,721
 97
Credit risk transfer securities, at fair value (including pledged securities of $406 and $455, respectively)Credit risk transfer securities, at fair value (including pledged securities of $406 and $455, respectively)1,073 737 
Non-Agency securities, at fair value (including pledged securities of $414 and $458, respectively)Non-Agency securities, at fair value (including pledged securities of $414 and $458, respectively)868 546 
Cash and cash equivalents1,289
 831
Cash and cash equivalents963 1,017 
Restricted cash1,978
 451
Restricted cash813 1,307 
Derivative assets, at fair value664
 190
Derivative assets, at fair value698 391 
Receivable for investment securities sold
 
Receivable for investment securities sold (including pledged securities of $0 and $207, respectively)Receivable for investment securities sold (including pledged securities of $0 and $207, respectively)50 210 
Receivable under reverse repurchase agreements4,938
 10,181
Receivable under reverse repurchase agreements16,803 11,748 
Goodwill526
 526
Goodwill526 526 
Other assets245
 364
Other assets195 204 
Total assets$85,137
 $113,082
Total assets$85,545 $81,817 
Liabilities:   Liabilities:
Repurchase agreements$66,540
 $89,182
Repurchase agreements$55,056 $52,366 
Debt of consolidated variable interest entities, at fair value214
 228
Debt of consolidated variable interest entities, at fair value165 177 
Payable for investment securities purchased3,273
 2,554
Payable for investment securities purchased2,512 6,157 
Derivative liabilities, at fair value138
 6
Derivative liabilities, at fair value589 
Dividends payable113
 104
Dividends payable88 90 
Obligation to return securities borrowed under reverse repurchase agreements, at fair value4,886
 9,543
Obligation to return securities borrowed under reverse repurchase agreements, at fair value15,090 11,727 
Accounts payable and other liabilities175
 424
Accounts payable and other liabilities681 219 
Total liabilities75,339
 102,041
Total liabilities74,181 70,738 
Stockholders' equity:   Stockholders' equity:
Preferred Stock - aggregate liquidation preference of $1,538 and $963, respectively1,489
 932
Common stock - $0.01 par value; 900 shares authorized; 567.7 and 540.9 shares issued and outstanding, respectively6
 5
Preferred Stock - aggregate liquidation preference of $1,538Preferred Stock - aggregate liquidation preference of $1,5381,489 1,489 
Common stock - $0.01 par value; 1,500 shares authorized; 524.9 and 539.5 shares issued and outstanding, respectivelyCommon stock - $0.01 par value; 1,500 shares authorized; 524.9 and 539.5 shares issued and outstanding, respectively
Additional paid-in capital14,334
 13,893
Additional paid-in capital13,736 13,972 
Retained deficit(6,592) (3,886)Retained deficit(4,348)(5,106)
Accumulated other comprehensive income (loss)561
 97
Accumulated other comprehensive incomeAccumulated other comprehensive income482 719 
Total stockholders' equity9,798
 11,041
Total stockholders' equity11,364 11,079 
Total liabilities and stockholders' equity$85,137
 $113,082
Total liabilities and stockholders' equity$85,545 $81,817 
See accompanying notes to consolidated financial statements.

2


AGNC INVESTMENT CORP.
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(Unaudited)
(in millions, except per share data)
 
Three Months Ended March 31,Three Months Ended March 31,
2020 2019 20212020
Interest income:   Interest income:
Interest income$491
 $705
Interest income$557 $491 
Interest expense426
 541
Interest expense29 426 
Net interest income65
 164
Net interest income528 65 
Other gain (loss), net:   Other gain (loss), net:
Gain on sale of investment securities, net494
 60
Unrealized gain on investment securities measured at fair value through net income, net197
 1,060
Loss on derivative instruments and other securities, net(3,154) (1,000)
Gain (loss) on sale of investment securities, netGain (loss) on sale of investment securities, net(13)494 
Unrealized gain (loss) on investment securities measured at fair value through net income, netUnrealized gain (loss) on investment securities measured at fair value through net income, net(955)197 
Gain (loss) on derivative instruments and other securities, netGain (loss) on derivative instruments and other securities, net1,439 (3,154)
Total other gain (loss), net:(2,463) 120
Total other gain (loss), net:471 (2,463)
Expenses:   Expenses:
Compensation and benefits13
 10
Compensation and benefits16 13 
Other operating expense10
 9
Other operating expense10 
Total operating expense23
 19
Total operating expense24 23 
Net income (loss)(2,421) 265
Net income (loss)975 (2,421)
Dividends on preferred stock21
 10
Dividends on preferred stock25 21 
Net income (loss) available (attributable) to common stockholders$(2,442) $255
Net income (loss) available (attributable) to common stockholders$950 $(2,442)
   
Net income (loss)$(2,421) $265
Net income (loss)$975 $(2,421)
Unrealized gain on investment securities measured at fair value through other comprehensive income, net464
 400
Unrealized gain (loss) on investment securities measured at fair value through other comprehensive income (loss), netUnrealized gain (loss) on investment securities measured at fair value through other comprehensive income (loss), net(237)464 
Comprehensive income (loss)(1,957) 665
Comprehensive income (loss)738 (1,957)
Dividends on preferred stock21
 10
Dividends on preferred stock25 21 
Comprehensive income (loss) available (attributable) to common stockholders$(1,978) $655
Comprehensive income (loss) available (attributable) to common stockholders$713 $(1,978)
   
Weighted average number of common shares outstanding - basic548.0
 536.7
Weighted average number of common shares outstanding - basic533.7 548.0 
Weighted average number of common shares outstanding - diluted548.0
 537.2
Weighted average number of common shares outstanding - diluted535.6 548.0 
Net income (loss) per common share - basic$(4.46) $0.48
Net income (loss) per common share - basic$1.78 $(4.46)
Net income (loss) per common share - diluted$(4.46) $0.47
Net income (loss) per common share - diluted$1.77 $(4.46)
Dividends declared per common share$0.48
 $0.54
Dividends declared per common share$0.36 $0.48 
See accompanying notes to consolidated financial statements.
3


AGNC INVESTMENT CORP.
CONSOLIDATED STATEMENTSTATEMENTS OF STOCKHOLDERS' EQUITY
(Unaudited)
(in millions)
Preferred StockCommon StockAdditional
Paid-in
Capital
Retained
Deficit
Accumulated
Other
Comprehensive
Income (Loss)
Total
Preferred Stock Common Stock Additional
Paid-in
Capital
 Retained
Deficit
 Accumulated
Other
Comprehensive
Income (Loss)
 Total
 Shares Amount 
Balance, December 31, 2018$484
 536.3
 $5
 $13,793
 $(3,433) $(943) $9,906
Net income
 
 
 
 265
 
 265
Other comprehensive income:            

Unrealized gain on available-for-sale securities, net
 
 
 
 
 400
 400
Stock-based compensation
 
 
 2
 
 
 2
Issuance of preferred stock, net of offering cost227
 
 
 
 
 
 227
Preferred dividends declared
 
 
 
 (10) 
 (10)
Common dividends declared
 
 
 
 (289) 
 (289)
Balance, March 31, 2019$711
 536.3
 $5
 $13,795
 $(3,467) $(543) $10,501
             Preferred StockSharesAmountAdditional
Paid-in
Capital
Retained
Deficit
Accumulated
Other
Comprehensive
Income (Loss)
Total
Balance, December 31, 2019$932
 540.9
 $5
 $13,893
 $(3,886) $97
 $11,041
Balance, December 31, 2019540.9 $
Net loss
 
 
 
 (2,421) 
 (2,421)Net loss— — — — (2,421)— (2,421)
Other comprehensive income:             Other comprehensive income:
Unrealized gain on available-for-sale securities, net
 
 
 
 
 464
 464
Unrealized gain on available-for-sale securities, net— — — — — 464 464 
Stock-based compensation
 0.1
 
 3
 
 
 3
Stock-based compensation, netStock-based compensation, net— 0.1 — — — 
Issuance of preferred stock, net of offering cost557
 
 
 
 
 
 557
Issuance of preferred stock, net of offering cost557 — — — — — 557 
Issuance of common stock, net of offering cost
 26.7
 1
 438
 
 
 439
Issuance of common stock, net of offering cost— 26.7 438 — — 439 
Preferred dividends declared
 
 
 
 (21) 
 (21)Preferred dividends declared— — — — (21)— (21)
Common dividends declared
 
 
 
 (264) 
 (264)Common dividends declared— — — — (264)— (264)
Balance, March 31, 2020$1,489
 567.7
 $6
 $14,334
 $(6,592) $561
 $9,798
Balance, March 31, 2020$1,489 567.7 $$14,334 $(6,592)$561 $9,798 
Balance, December 31, 2020Balance, December 31, 2020$1,489 539.5 $$13,972 $(5,106)$719 $11,079 
Net incomeNet income— — — — 975 — 975 
Other comprehensive loss:Other comprehensive loss:
Unrealized loss on available-for-sale securities, netUnrealized loss on available-for-sale securities, net— — — — — (237)(237)
Stock-based compensation, netStock-based compensation, net— 0.4 — — — 
Repurchase of common stockRepurchase of common stock— (15.0)(239)— — (239)
Preferred dividends declaredPreferred dividends declared— — — — (25)— (25)
Common dividends declaredCommon dividends declared— — — — (192)— (192)
Balance, March 31, 2021Balance, March 31, 2021$1,489 524.9 $$13,736 $(4,348)$482 $11,364 
See accompanying notes to consolidated financial statements.


4


AGNC INVESTMENT CORP.
CONSOLIDATED STATEMENTS OF CASH FLOWS
(Unaudited)
(in millions) 
Three Months Ended March 31,
Three Months Ended
March 31,
2020 2019 20212020
Operating activities:   Operating activities:
Net income (loss)$(2,421) $265
Net income (loss)$975 $(2,421)
Adjustments to reconcile net income to net cash provided by operating activities:   
Adjustments to reconcile net income (loss) to net cash provided by operating activities:Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Amortization of premiums and discounts on mortgage-backed securities, net384
 142
Amortization of premiums and discounts on mortgage-backed securities, net(76)384 
Stock-based compensation3
 2
Gain on sale of investment securities, net(494) (60)
Unrealized gain on investment securities measured at fair value through net income, net(197) (1,060)
Loss on derivative instruments and other securities, net3,154
 1,000
(Increase) decrease in other assets78
 (35)
Increase (decrease) in accounts payable and other accrued liabilities(160) 75
Stock-based compensation, netStock-based compensation, net
(Gain) loss on sale of investment securities, net(Gain) loss on sale of investment securities, net13 (494)
Unrealized (gain) loss on investment securities measured at fair value through net income, netUnrealized (gain) loss on investment securities measured at fair value through net income, net955 (197)
(Gain) loss on derivative instruments and other securities, net(Gain) loss on derivative instruments and other securities, net(1,439)3,154 
Decrease in other assetsDecrease in other assets78 
Decrease in accounts payable and other accrued liabilitiesDecrease in accounts payable and other accrued liabilities(12)(160)
Net cash provided by operating activities347
 329
Net cash provided by operating activities428 347 
Investing activities:   Investing activities:
Purchases of Agency mortgage-backed securities(23,339) (16,038)Purchases of Agency mortgage-backed securities(14,029)(23,339)
Purchases of credit risk transfer and non-Agency securities(347) (499)Purchases of credit risk transfer and non-Agency securities(497)(347)
Proceeds from sale of Agency mortgage-backed securities49,596
 4,694
Proceeds from sale of Agency mortgage-backed securities6,366 49,596 
Proceeds from sale of credit risk transfer and non-Agency securities492
 297
Proceeds from sale of credit risk transfer and non-Agency securities137 492 
Principal collections on Agency mortgage-backed securities3,743
 1,889
Principal collections on Agency mortgage-backed securities4,317 3,743 
Principal collections on credit risk transfer and non-Agency securities11
 5
Principal collections on credit risk transfer and non-Agency securities11 
Payments on U.S. Treasury securities(17,907) (7,550)Payments on U.S. Treasury securities(4,313)(17,907)
Proceeds from U.S. Treasury securities8,795
 5,103
Proceeds from U.S. Treasury securities8,474 8,795 
Net proceeds from reverse repurchase agreements5,275
 1,526
Net payments on derivative instruments(2,742) (714)
Net proceeds from (payments on) reverse repurchase agreementsNet proceeds from (payments on) reverse repurchase agreements(5,055)5,275 
Net proceeds from (payments on) derivative instrumentsNet proceeds from (payments on) derivative instruments1,395 (2,742)
Net cash provided by (used in) investing activities23,577
 (11,287)Net cash provided by (used in) investing activities(3,196)23,577 
Financing activities:   Financing activities:
Proceeds from repurchase arrangements1,162,934
 930,289
Proceeds from repurchase arrangements526,319 1,162,934 
Payments on repurchase agreements(1,185,576) (919,321)Payments on repurchase agreements(523,629)(1,185,576)
Payments on debt of consolidated variable interest entities(16) (13)Payments on debt of consolidated variable interest entities(12)(16)
Net proceeds from preferred stock issuances557
 227
Net proceeds from preferred stock issuances557 
Net proceeds from common stock issuances439
 
Net proceeds from common stock issuances439 
Payments for common stock repurchasesPayments for common stock repurchases(239)
Cash dividends paid(277) (298)Cash dividends paid(219)(277)
Net cash provided by (used in) financing activities(21,939) 10,884
Net cash provided by (used in) financing activities2,220 (21,939)
Net change in cash, cash equivalents and restricted cash1,985
 (74)Net change in cash, cash equivalents and restricted cash(548)1,985 
Cash, cash equivalents and restricted cash at beginning of period1,282
 1,520
Cash, cash equivalents and restricted cash at beginning of period2,324 1,282 
Cash, cash equivalents and restricted cash at end of period$3,267
 $1,446
Cash, cash equivalents and restricted cash at end of period$1,776 $3,267 
See accompanying notes to consolidated financial statements.

5


AGNC INVESTMENT CORP.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)
Note 1. Basis of PresentationOrganization
The unaudited interim consolidated financial statements of AGNC Investment Corp. (referred throughout this report as the "Company," "we," "us" and "our") are prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Article 10 of Regulation S-X. The preparation of 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 income and expenses during the reporting period. In the opinion of management, all adjustments, consisting solely of normal recurring accruals, necessary for the fair presentation of financial statements for the interim period have been included. The current period’s results of operations are not necessarily indicative of results that ultimately may be achieved for the year.
Our unaudited interim consolidated financial statements include the accounts of all our wholly-owned subsidiaries and variable interest entities for which we are the primary beneficiary. Significant intercompany accounts and transactions have been eliminated.

Note 2. Organization
We werewas organized in Delaware on January 7, 2008 and commenced operations on May 20, 2008 following the completion of our initial public offering. Our common stock is traded on The Nasdaq Global Select Market under the symbol "AGNC."
We are internally managed, and our principal objective is to provide our stockholders with attractive risk-adjusted returns through a combination of monthly dividends and tangible net book value accretion. We generate income from the interest earned on our investments, net of associated borrowing and hedging costs, and net realized gains and losses on our investment and hedging activities.
We operate to qualify to be taxed as a real estate investment trust ("REIT") under the Internal Revenue Code of 1986, as amended (the "Internal Revenue Code"). As a REIT, we are required to distribute annually 90% of our taxable income, and we will generally not be subject to U.S. federal or state corporate income tax to the extent that we distribute our annual taxable income to our stockholders on a timely basis. It is our intention to distribute 100% of our taxable income, after application of available tax attributes, within the limits prescribed by the Internal Revenue Code, which may extend into the subsequent tax year.
We invest primarily in Agency residential mortgage-backed securities ("Agency RMBS") for which the principal and interest payments are guaranteed by a U.S. Government-sponsored enterprise ("GSE") or a U.S. Government agency. We also invest in other types of mortgage and mortgage-related securities, such as credit risk transfer ("CRT") securities and non-Agency residential and commercial mortgage-backed securities ("non-Agency RMBS" and "CMBS," respectively), where repayment of principal and interest is not guaranteed by a GSE or U.S. Government agency, and in other investments in, orassets related to the housing, mortgage or real estate markets. We fund our investments primarily through collateralized borrowings structured as repurchase agreements.

We operate to qualify to be taxed as a real estate investment trust ("REIT") under the Internal Revenue Code of 1986, as amended (the "Internal Revenue Code"). As a REIT, we are required to distribute annually 90% of our taxable income, and we will generally not be subject to U.S. federal or state corporate income tax to the extent that we distribute our annual taxable income to our stockholders on a timely basis. It is our intention to distribute 100% of our taxable income, after application of available tax attributes, within the limits prescribed by the Internal Revenue Code, which may extend into the subsequent tax year.
We are internally managed with the principal objective of providing our stockholders with attractive risk-adjusted returns through a combination of monthly dividends and tangible net book value accretion. We generate income from the interest earned on our investments, net of associated borrowing and hedging costs, and net realized gains and losses on our investment and hedging activities.

Note 3.2. Summary of Significant Accounting Policies
Basis of Presentation
Our accompanying consolidated financial statements and related notes have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Article 10 of Regulation S-X. The accompanying consolidated financial statements and related notes are unaudited and include the accounts of all our wholly-owned subsidiaries and variable interest entities for which we are the primary beneficiary. Significant intercompany accounts and transactions have been eliminated. The accompanying consolidated financial statements and related notes should be read in conjunction with the audited consolidated financial statements included in our most recent Annual Report on Form 10-K for the fiscal year ended December 31, 2020.
The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of income and expenses during the reporting period. In the opinion of management, all adjustments, consisting solely of normal recurring accruals, necessary for the fair presentation of consolidated financial statements for the interim period have been included. The current period’s results of operations are not necessarily indicative of results that ultimately may be achieved for the year.
Investment Securities
Agency RMBS consist of residential mortgage pass-through securities and collateralized mortgage obligations ("CMOs") guaranteed by the Federal National Mortgage Association ("Fannie Mae"), Federal Home Loan Mortgage Corporation ("Freddie Mac," and together with Fannie Mae, the "GSEs") or the Government National Mortgage Association ("Ginnie Mae").
CRT securities are risk sharing instruments issued by the GSEs, and similarly structured transactions issued by third-party market participants, that synthetically transfer a portion of the risk associated with credit losses within pools of conventional residential mortgage loans from the GSEs and/or third parties to private investors. Unlike Agency RMBS, full repayment of the original principal balance of CRT securities is not guaranteed by a GSE or U.S. Government agency; rather, "credit risk transfer" is achieved by writing down the outstanding principal balance of the CRT securities if credit losses on a related pool
6


of loans exceed certain thresholds. By reducing the amount that they are obligated to repay to holders of CRT securities, the GSEs and/or other third parties offset credit losses on the related loans.
Non-Agency RMBS and CMBS (together, "Non-Agency MBS") are backed by residential and commercial mortgage loans, respectively, packaged and securitized by a private institution, such as a commercial bank. Non-Agency MBS typically benefit


from credit enhancements derived from structural elements, such as subordination, overcollateralization or insurance, but nonetheless carry a higher level of credit exposure than Agency RMBS.
All of our securities are reported at fair value on our consolidated balance sheet. Accounting Standards Codification ("ASC") Topic 320, Investments—Debt and Equity Securities, requires that at the time of purchase, we designate a security as held-to-maturity, available-for-sale or trading, depending on our ability and intent to hold such security to maturity. Alternatively, we may elect the fair value option of accounting for securities pursuant to ASC Topic 825, Financial Instruments. Prior to fiscal year 2017, we primarily designated our investment securities as available-for-sale. On January 1, 2017, we began electing the fair value option of accounting for all investment securities newly acquired after such date. Unrealized gains and losses on securities classified as available-for-sale are reported in accumulated other comprehensive income ("OCI"), whereas unrealized gains and losses on securities for which we elected the fair value option, or are classified as trading, are reported in net income through other gain (loss). Upon the sale of a security designated as available-for-sale, we determine the cost of the security and the amount of unrealized gain or loss to reclassify out of accumulated OCI into earnings based on the specific identification method. In our view, the election of the fair value option simplifies the accounting for investment securities and more appropriately reflects the results of our operations for a reporting period by presenting the fair value changes for these assets in a manner consistent with the presentation and timing of the fair value changes for our derivative instruments.
We generally recognize gains or losses through net income on available-for-sale securities only if the security is sold; however, if the fair value of a security declines below its amortized cost and we determine that it is more likely than not that we will incur a realized loss on the security when we sell the asset, we will recognize the difference between the amortized cost and the fair in net income as a component of other gain (loss). Since all of our available-for-sale designated securities consist of Agency RMBS, we do not have an allowance for credit losses. For the three months ended March 31, 2020 and 2019, weWe have not recognized any impairment losses on our available-for-sale securities through net income.income for the periods presented in our consolidated financial statements.
Interest Income
Interest income is accrued based on the outstanding principal amount of the investment securities and their contractual terms. Premiums or discounts associated with the purchase of Agency RMBS and non-Agency MBS of high credit quality are amortized or accreted into interest income, respectively, over the projected lives of the securities, including contractual payments and estimated prepayments, using the effective interest method in accordance with ASC Subtopic 310-20, Receivables—Nonrefundable Fees and Other Costs.
We estimate long-term prepayment speeds of our mortgage securities using a third-party service and market data. The third-party service provider estimates prepayment speeds using models that incorporate the forward yield curve, primary to secondary mortgage rate spreads, current mortgage rates, mortgage rates of the outstanding loans, age and size of the outstanding loans, loan-to-value ratios, interest rate volatility and other factors. We review the prepayment speeds estimated by the third-party service for reasonableness with consideration given to both historical prepayment speeds and current market conditions. If based on our assessment, we believe that the third-party model does not fully reflect our expectations of the current prepayment landscape, such as during periods of elevated market uncertainty or unique market conditions, we may make adjustments to the models. We review our actual and anticipated prepayment experience on at least a quarterly basis and effective yields are recalculated when differences arise between (i) our previous estimate of future prepayments and (ii) actual prepayments to date and our current estimate of future prepayments. We are required to record an adjustment in the current period to premium amortization / discount accretion for the cumulative effect of the difference in the effective yields as if the recalculated yield had been in place as of the security's acquisition date through the reporting date.
At the time we purchase CRT securities and non-Agency MBS that are not of high credit quality, we determine an effective yield based on our estimate of the timing and amount of future cash flows and our cost basis. Our initial cash flow estimates for these investments are based on our observations of current information and events and include assumptions related to interest rates, prepayment rates and the impact of default and severity rates on the timing and amount of credit losses. On at least a quarterly basis, we review the estimated cash flows and make appropriate adjustments based on inputs and analysis received from external sources, internal models, and our judgment regarding such inputs and other factors. Any resulting changes in effective yield are recognized prospectively based on the current amortized cost of the investment adjusted for credit impairments, if any.
7


Repurchase Agreements 
We finance the acquisition of securities for our investment portfolio primarily through repurchase transactions under masteragreements with financial institutions. Repurchase arrangements involve the sale and a simultaneous agreement to repurchase agreements.the transferred assets at a future date. We maintain a beneficial interest in the specific securities pledged during the term of each repurchase arrangement and we receive the related principal and interest payments. Pursuant to ASC Topic 860, Transfers and Servicing, we account for repurchase transactionsagreements as collateralized financing transactions, which are carried at their contractual amounts (cost), plus accrued interest. Our repurchase agreements typically have maturities of less than one year but may extend up to five years or more.


Reverse Repurchase Agreements and Obligation to Return Securities Borrowed under Reverse Repurchase Agreements
We borrow securities to cover short sales of U.S. Treasury securities through reverse repurchase transactions under our master repurchase agreements (see Derivative Instruments below). We account for these as securities borrowing transactions and recognize an obligation to return the borrowed securities at fair value on the balance sheet based on the value of the underlying borrowed securities as of the reporting date. We may also enter into reverse repurchase agreements to earn a yield on excess cash balances. The securities received as collateral in connection with our reverse repurchase agreements mitigate our credit risk exposure to counterparties. Our reverse repurchase agreements typically have maturities of 30 days or less.
Derivative Instruments
We use a variety of derivative instruments to hedge a portion of our exposure to market risks, including interest rate, prepayment, extension and liquidity risks. The objective of our risk management strategy is to reduce fluctuations in net book value over a range of interest rate scenarios. In particular, we attempt to mitigate the risk of the cost of our variable rate liabilities increasing during a period of rising interest rates. The primary instruments that we use are interest rate swaps, options to enter into interest rate swaps ("swaptions"), U.S. Treasury securities and U.S. Treasury futures contracts. We also use forward contracts in the Agency RMBS "to-be-announced" market, or TBA securities, to invest in and finance Agency securities and to periodically reduce our exposure to Agency RMBS.
We account for derivative instruments in accordance with ASC Topic 815, Derivatives and Hedging ("ASC 815"). ASC 815 requires an entity to recognize all derivatives as either assets or liabilities in our accompanying consolidated balance sheets and to measure those instruments at fair value. None of our derivative instruments have been designated as hedging instruments for accounting purposes under the provisions of ASC 815, consequently changes in the fair value of our derivative instruments are reported in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income.
Our derivative agreements generally contain provisions that allow for netting or setting off derivative assets and liabilities with the counterparty; however, we report related assets and liabilities on a gross basis in our consolidated balance sheets. Derivative instruments in a gain position are reported as derivative assets at fair value and derivative instruments in a loss position are reported as derivative liabilities at fair value in our consolidated balance sheets. Changes in fair value of derivative instruments and periodic settlements related to our derivative instruments are recorded in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income. Cash receipts and payments related to derivative instruments are classified in our consolidated statements of cash flows according to the underlying nature or purpose of the derivative transaction, generally in the investing section.
Interest rate swap agreements
We use interest rate swaps to economically hedge the variable cash flows associated with our borrowings made under repurchase agreements. Under our interest rate swap agreements, we typically pay a fixed rate and receive a floating rate ("payer swaps") based on a short-term benchmark rate, such as the Secured Overnight Financing Rate ("SOFR"), Overnight Index Swap Rate ("OIS"), Secured Overnight Financing Rate ("SOFR") or three-month London Interbank Offered Rate ("LIBOR"). Our interest rate swaps typically have terms from one to 10 years but may extend up to 20 years or more. Our interest rate swaps are centrally cleared through a registered commodities exchange. The clearing exchange requires that we post an "initial margin" amount determined by the exchange, which is generally intended to be set at a level sufficient to protect the exchange from the interest rate swap's maximum estimated single-day price movement. We also exchange daily settlements of "variation margin" based upon changes in fair value, as measured by the exchange. Pursuant to rules governing central clearing activities, we recognize variation margin settlements as a direct reduction of the carrying value of the interest rate swap asset or liability.
8


Interest rate swaptions
We purchase interest rate swaptions to help mitigate the potential impact of larger, more rapid changes in interest rates on the performance of our investment portfolio. Interest rate swaptions provide us the option to enter into an interest rate swap agreement for a predetermined notional amount, stated term and pay and receive interest rates in the future. Our interest rate swaption agreements are not subject to central clearing. The premium paid for interest rate swaptions is reported as an asset in our consolidated balance sheets. The difference between the premium paid and the fair value of the swaption is reported in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income. If a swaption expires unexercised, the realized loss on the swaption would be equal to the premium paid. If we sell or exercise a swaption, the realized gain or loss on the swaption would be equal to the difference between the cash or the fair value of the underlying interest rate swap and the premium paid.


TBA securities
A TBA security is a forward contract for the purchase or sale of Agency RMBS at a predetermined price, face amount, issuer, coupon and stated maturity on an agreed-upon future date. The specific Agency RMBS to be delivered into the contract are not known until shortly before the settlement date. We may choose, prior to settlement, to move the settlement of these securities out to a later date by entering into an offsetting TBA position, net settling the offsetting positions for cash, and simultaneously purchasing or selling a similar TBA contract for a later settlement date (together referred to as a "dollar roll transaction"). The Agency securities purchased or sold for a forward settlement date are typically priced at a discount to equivalent securities settling in the current month. This difference, or "price drop," is the economic equivalent of interest income on the underlying Agency securities, less an implied funding cost, over the forward settlement period (referred to as "dollar roll income"). Consequently, forward purchases of Agency securities and dollar roll transactions represent a form of off-balance sheet financing.
We account for TBA contracts as derivative instruments since either the TBA contracts do not settle in the shortest period of time possible or we cannot assert that it is probable at inception and throughout the term of the TBA contract that we will physically settle the contract on the settlement date. We account for TBA dollar roll transactions as a series of derivative transactions.
U.S. Treasury securities
We use U.S. Treasury securities and U.S. Treasury futures contracts to mitigate the potential impact of changes in interest rates on the performance of our portfolio. We borrow U.S. Treasury securities under reverse repurchase agreements to cover short sales of U.S. Treasury securities. We account for these as securities borrowing transactions and recognize an obligation to return the borrowed securities at fair value on our accompanying consolidated balance sheets based on the value of the underlying U.S. Treasury security as of the reporting date. Gains and losses associated with U.S. Treasury securities and U.S. Treasury futures contracts are recognized in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income.
Fair Value Measurements
We determine the fair value of financial instruments based on our estimate of the price that would be received to sell the asset or paid to transfer the liability in an orderly transaction between market participants at the measurement date. We utilize a three-level valuation hierarchy for disclosure of fair value measurements based upon the transparency of inputs to the valuation of the instrument as of the measurement date. We categorize a financial instrument within the hierarchy based upon the lowest level of input that is significant to the fair value measurement.
The three levels of valuation hierarchy are defined as follows:
Level 1 Inputs —Quoted prices (unadjusted) for identical unrestricted assets and liabilities in active markets that are accessible at the measurement date.
Level 2 Inputs —Quoted prices for similar assets and liabilities 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 3 Inputs —Instruments with primarily unobservable market data that cannot be corroborated.
The majority of our financial instruments are classified as Level 2 inputs. The availability of observable inputs can be affected by a wide variety of factors, including the type of instrument, whether the instrument is new and not yet established in the marketplace and other characteristics particular to the instrument. We typically obtain price estimates from multiple third-
9


party pricing sources, such as pricing services and dealers, or, if applicable, the registered clearing exchange. We make inquiries of third-party pricing sources to understand the significant inputs and assumptions they used to determine their prices and that they are derived from orderly transactions, particularly during periods of elevated market turbulence and reduced market liquidity. We also review third-party price estimates and perform procedures to validate their reasonableness, including an analysis of the range of estimates for each position, comparison to recent trade activity for similar securities and for consistency with market conditions observed as of the measurement date. While we do not adjust prices we obtain from pricing sources, we will exclude prices for securities from our estimation of fair value if we determine based on our validation procedures and our market knowledge and expertise that the price is significantly different from what observable market data would indicate and we cannot obtain an understanding from the third-party source as to the significant inputs used to determine the price.
The following is a description of the valuation methodologies used for instruments measured at fair value on a recurring basis classified as Level 2 inputs. These instruments trade in active markets such that participants transact with sufficient frequency and volume to provide transparent pricing information on an ongoing basis. The liquidity of these markets and the similarity of our securities and derivative instruments to those actively traded enable our pricing sources and us to observe quoted prices in the market and utilize those prices as a basis for formulating fair value measurements.
Investment securities - are valued based on prices obtained from multiple third-party pricing sources. The pricing sources utilize various valuation approaches, including market and income approaches. For Agency RMBS, the pricing sources primarily utilize a matrix pricing technique that interpolates the estimated fair value based on observed quoted prices for forward contracts in the Agency RMBS "to-be-announced" market ("TBA securities") of the same coupon, maturity and issuer, adjusted to reflect the specific characteristics of the pool of mortgages underlying the Agency security, such as maximum loan balance, loan vintage, loan-to-value ratio, geography and other characteristics as may be appropriate. For other investment securities, the pricing sources primarily utilize discounted cash flow model-derived pricing techniques to estimate the fair value. Such models incorporate market-based discount rate assumptions based on observable inputs such as recent trading activity, credit data, volatility statistics, benchmark interest rate curves, spread measurements to benchmark curves and other market data that are current as of the measurement date and may include certain unobservable inputs, such as assumptions of future levels of prepayment, defaults and loss severities.
TBA securities - are valued using prices obtained from third-party pricing sources based on pricing models that reference recent trading activity.
Interest rate swaps - are valued using the daily settlement price, or fair value, determined by the clearing exchange based on a pricing model that references observable market inputs, including current benchmark rates and the forward yield curve.
Interest rate swaptions - are valued using prices obtained from the counterparty and other third-party pricing models. The pricing models are based on the value of the future interest rate swap that we have the option to enter into as well as the remaining length of time that we have to exercise the option based on observable market inputs, adjusted for non-performance risk, if any.
U.S. Treasury securities and futures are valued based on quoted prices for identical instruments in active markets and are classified as Level 1 assets. None of our financial instruments are classified as Level 3 inputs.
Recent Accounting Pronouncements
In June 2016 the Financial Account Standards Board ("FASB") issued Accounting Standards Update 2016-13, Financial Instruments - Credit Losses (Topic 326), which replaces the incurred loss impairment methodology in prior GAAP with a methodology that better reflects expected credit losses. For financial instruments carried at amortized cost, impairment will be measured as a current estimate of expected lifetime credit losses. For available-for-sale investment securities with changes in fair value recorded in accumulated other comprehensive income, the FASB made targeted improvements eliminating the write-down of available-for-sale securities under the "other-than-temporary" impairment model replacing it with an allowance for credit loss model. We adopted ASU 2016-13 effective January 1, 2020, which had no material effect on our financial results.
We consider the applicability and impact of all ASUs issued by the FASB. There are no unadopted ASUs that are expected to have a significant impact on our consolidated financial statements when adopted or other recently adopted ASUs that had a significant impact on our consolidated financial statements upon adoption.

Note 4.3. Investment Securities
As of March 31, 20202021 and December 31, 2019,2020, our investment portfolio consisted of $71.8$65.5 billion and $100.4$66.4 billion of investment securities, at fair value, respectively, and $21.2$24.8 billion and $7.4$31.5 billion of net TBA securities, at fair value, respectively. Our net TBA position is reported at its net carrying value of $574$(576) million and $25$275 million as of March 31, 20202021 and December 31, 2019,2020, respectively, in derivative assets / (liabilities) on our accompanying consolidated balance sheets. The net carrying value of our TBA position represents the difference between the fair value of the underlying Agency security in the TBA contract and the cost basis or the forward price to be paid or received for the underlying Agency security.
As of March 31, 20202021 and December 31, 2019,2020, our investment securities had a net unamortized premium balance of $2.6$2.5 billion and $3.1$2.4 billion, respectively.

10


The following tables summarize our investment securities as of March 31, 20202021 and December 31, 2019,2020, excluding TBA securities, (dollars in millions). Details of our TBA securities as of each of the respective dates are included in Note 6.5.
  March 31, 2020 December 31, 2019
Investment Securities 
Amortized
Cost
 Fair Value Amortized
Cost
 Fair Value
Agency RMBS:        
Fixed rate $67,284
 $69,901
 $96,375
 $98,074
Adjustable rate 118
 120
 160
 163
CMO 406
 422
 441
 447
Interest-only and principal-only strips 138
 165
 146
 164
Multifamily 37
 42
 37
 39
Total Agency RMBS 67,983
 70,650
 97,159
 98,887
Non-Agency RMBS 225
 204
 198
 209
CMBS 360
 348
 352
 370
CRT securities 775
 574
 961
 976
Total investment securities $69,343
 $71,776
 $98,670
 $100,442

 March 31, 2021December 31, 2020
Investment SecuritiesAmortized
Cost
Fair ValueAmortized
Cost
Fair Value
Agency RMBS:
Fixed rate$61,659 $63,122 $61,977 $64,615 
Adjustable rate61 62 69 70 
CMO249 259 289 301 
Interest-only and principal-only strips96 113 105 126 
Multifamily17 19 
Total Agency RMBS62,065 63,556 62,457 65,131 
Non-Agency RMBS487 495 178 188 
CMBS356 373 333 358 
CRT securities1,067 1,073 733 737 
Total investment securities$63,975 $65,497 $63,701 $66,414 
  March 31, 2020
  Agency RMBS Non-Agency    
Investment Securities Fannie Mae Freddie Mac 
Ginnie
Mae
 RMBS CMBS CRT Total
Available-for-sale securities:              
Par value $13,566
 $4,547
 $17
 $
 $
 $
 $18,130
Unamortized discount (8) (1) 
 
 
 
 (9)
Unamortized premium 600
 232
 
 
 
 
 832
Amortized cost 14,158
 4,778
 17
 
 
 
 18,953
Gross unrealized gains 441
 122
 1
 
 
 
 564
Gross unrealized losses (3) 
 
 
 
 
 (3)
Total available-for-sale securities, at fair value 14,596
 4,900
 18
 
 
 
 19,514
Securities remeasured at fair value through earnings:              
Par value 27,214
 20,042
 4
 232
 356
 757
 48,605
Unamortized discount (24) (2) 
 (10) (3) (3) (42)
Unamortized premium 997
 798
 
 4
 7
 21
 1,827
Amortized cost 28,187
 20,838
 4
 226
 360
 775
 50,390
Gross unrealized gains 1,223
 890
 
 
 6
 1
 2,120
Gross unrealized losses (3) (3) 
 (22) (18) (202) (248)
Total securities remeasured at fair value through earnings 29,407
 21,725
 4
 204
 348
 574
 52,262
Total securities, at fair value $44,003
 $26,625
 $22
 $204
 $348
 $574
 $71,776
Weighted average coupon as of March 31, 2020 3.77% 3.93% 3.84% 4.16% 4.29% 4.27% 3.84%
Weighted average yield as of March 31, 2020 1
 2.91% 2.95% 2.25% 4.13% 4.15% 2.27% 2.93%

 March 31, 2021
Agency RMBSNon-Agency
Investment SecuritiesFannie MaeFreddie MacGinnie
Mae
RMBSCMBSCRTTotal
Available-for-sale securities:
Par value$8,375 $2,845 $$$$$11,222 
Unamortized discount(4)(1)(5)
Unamortized premium405 144 549 
Amortized cost8,776 2,988 11,766 
Gross unrealized gains369 113 482 
Gross unrealized losses
Total available-for-sale securities, at fair value9,145 3,101 12,248 
Securities remeasured at fair value through earnings:
Par value32,513 15,801 493 354 1,068 50,232 
Unamortized discount(19)(1)(12)(4)(12)(48)
Unamortized premium1,312 690 11 2,025 
Amortized cost33,806 16,490 487 356 1,067 52,209 
Gross unrealized gains875 463 10 18 13 1,379 
Gross unrealized losses(228)(101)(2)(1)(7)(339)
Total securities remeasured at fair value through earnings34,453 16,852 495 373 1,073 53,249 
Total securities, at fair value$43,598 $19,953 $$495 $373 $1,073 $65,497 
Weighted average coupon as of March 31, 20213.20 %3.27 %4.71 %3.16 %4.06 %3.30 %3.23 %
Weighted average yield as of March 31, 2021 1
2.35 %2.36 %2.53 %1.56 %4.31 %3.79 %2.39 %
 ________________________________
1.
1.Incorporates a weighted average future constant prepayment rate assumption of 11.3% based on forward rates as of March 31, 2021.14.5% based on forward rates as of March 31, 2020.



  December 31, 2019
  Agency RMBS Non-Agency    
Investment Securities 
Fannie 
Mae
 Freddie Mac 
Ginnie 
Mae
 RMBS CMBS CRT Total
Available-for-sale securities:              
Par value $14,301
 $4,762
 $18
 $
 $
 $
 $19,081
Unamortized discount (10) (2) 
 
 
 
 (12)
Unamortized premium 711
 276
 
 
 
 
 987
Amortized cost 15,002
 5,036
 18
 
 
 
 20,056
Gross unrealized gains 142
 29
 1
 
 
 
 172
Gross unrealized losses (50) (25) 
 
 
 
 (75)
Total available-for-sale securities, at fair value 15,094
 5,040
 19
 
 
 
 20,153
Securities remeasured at fair value through earnings:              
Par value 45,106
 29,881
 
 208
 348
 937
 76,480
Unamortized discount (68) (2) 
 (10) (3) (2) (85)
Unamortized premium 1,218
 967
 
 1
 7
 26
 2,219
Amortized cost 46,256
 30,846
 
 199
 352
 961
 78,614
Gross unrealized gains 991
 691
 
 10
 19
 18
 1,729
Gross unrealized losses (32) (18) 
 
 (1) (3) (54)
Total securities remeasured at fair value through earnings 47,215
 31,519
 
 209
 370
 976
 80,289
Total securities, at fair value $62,309
 $36,559
 $19
 $209
 $370
 $976
 $100,442
Weighted average coupon as of December 31, 2019 3.62% 3.75% 3.77% 4.05% 4.49% 5.07% 3.68%
Weighted average yield as of December 31, 2019 1
 3.03% 3.09% 2.08% 4.39% 4.38% 4.05% 3.07%
11


 December 31, 2020
Agency RMBSNon-Agency
Investment SecuritiesFannie 
Mae
Freddie MacGinnie 
Mae
RMBSCMBSCRTTotal
Available-for-sale securities:
Par value$9,325 $3,416 $$$$$12,743 
Unamortized discount(4)(1)(5)
Unamortized premium389 152 541 
Amortized cost9,710 3,567 13,279 
Gross unrealized gains539 180 719 
Gross unrealized losses
Total available-for-sale securities, at fair value10,249 3,747 13,998 
Securities remeasured at fair value through earnings:
Par value32,824 14,447 187 331 735 48,527 
Unamortized discount(18)(1)(12)(3)(12)(46)
Unamortized premium1,314 607 10 1,941 
Amortized cost34,120 15,053 179 334 733 50,422 
Gross unrealized gains1,280 683 11 28 12 2,014 
Gross unrealized losses(5)(1)(2)(4)(8)(20)
Total securities remeasured at fair value through earnings35,395 15,735 188 358 737 52,416 
Total securities, at fair value$45,644 $19,482 $$188 $358 $737 $66,414 
Weighted average coupon as of December 31, 20203.30 %3.56 %4.73 %4.28 %4.13 %3.43 %3.39 %
Weighted average yield as of December 31, 2020 1
2.25 %2.39 %2.46 %4.33 %4.29 %3.71 %2.33 %
 ________________________________
1.Incorporates a weighted average future constant prepayment rate assumption of 10.8% based on forward rates as of December 31, 2019.
1.Incorporates a weighted average future constant prepayment rate assumption of 17.6% based on forward rates as of December 31, 2020.
As of March 31, 20202021 and December 31, 2019,2020, our investments in CRT and non-Agency securities had the following credit ratings:ratings (in millions):
 March 31, 2020 December 31, 2019 March 31, 2021December 31, 2020
CRT and Non-Agency Security Credit Ratings 1
 CRT RMBS CMBS CRT RMBS CMBS
CRT and Non-Agency Security Credit Ratings 1
CRTRMBSCMBSCRTRMBSCMBS
AAA $
 $
 $34
 $
 $
 $43
AAA$$302 $20 $$$35 
AA 
 65
 204
 
 81
 214
AA20 167 20 190 
A 
 29
 30
 13
 25
 34
A33 34 32 28 
BBB 97
 72
 55
 67
 71
 69
BBB71 81 63 28 83 55 
BB 233
 23
 25
 471
 21
 10
BB224 42 58 167 36 43 
B 175
 5
 
 308
 4
 
B447 31 304 
Not Rated 69
 10
 
 117
 7
 
Not Rated331 11 238 11 
Total $574
 $204
 $348
 $976
 $209
 $370
Total$1,073 $495 $373 $737 $188 $358 
 ________________________________
1.Represents the lowest of Standard and Poor's ("S&P"), Moody's, Fitch, DBRS, Kroll Bond Rating Agency ("KBRA") and Morningstar credit ratings, stated in terms of the S&P equivalent rating as of each date.
1.Represents the lowest of Standard and Poor's ("S&P"), Moody's, Fitch, DBRS, Kroll Bond Rating Agency ("KBRA") and Morningstar credit ratings, stated in terms of the S&P equivalent rating as of each date.
Our CRT securities reference the performance of loans underlying Agency RMBS issued by Fannie Mae or Freddie Mac, which were subject to their underwriting standards.
The actual maturities of our investment securities are generally shorter than their stated contractual maturities. The actual maturities of our Agency and high credit quality non-Agency RMBS are primarily affected by principal prepayments and to a lesser degree the contractual lives of the underlying mortgages and periodic contractual principal repayments. The actual maturities of our credit-oriented investments are primarily impacted by their contractual lives and default and loss recovery rates. As of March 31, 20202021 and December 31, 2019,2020, the weighted average expected constant prepayment rate ("CPR") over the remaining life of our Agency and high credit quality non-Agency RMBS investment portfolio was 14.5%11.3% and 10.8%17.6%, respectively. Our estimates can differ materially for different securities and thus our individual holdings have a wide range of projected CPRs. The following table summarizes our investments as of March 31, 20202021 and December 31, 20192020 according to their estimated weighted average life classification (dollars in millions):



  March 31, 2020 December 31, 2019
Estimated Weighted Average Life of Investment Securities Fair Value 
Amortized
Cost
 
Weighted
Average
Coupon
 
Weighted
Average
Yield
 Fair Value 
Amortized
Cost
 
Weighted
Average
Coupon
 
Weighted
Average
Yield
≤ 3 years $2,790
 $2,866
 3.49% 2.31% $2,671
 $2,654
 3.54% 2.61%
> 3 years and ≤ 5 years 23,997
 23,169
 4.04% 2.96% 10,822
 10,563
 3.85% 3.20%
> 5 years and ≤10 years 44,910
 43,213
 3.75% 2.95% 86,492
 85,002
 3.67% 3.07%
> 10 years 79
 95
 3.50% 3.60% 457
 451
 3.31% 3.06%
Total $71,776
 $69,343
 3.84% 2.93% $100,442
 $98,670
 3.68% 3.07%
12


The following table presents the gross unrealized loss and fair values of securities classified as available-for-sale by length of time that such securities have been in a continuous unrealized loss position as of March 31, 2020 and December 31, 2019 (in millions):
  Unrealized Loss Position For
  Less than 12 Months 12 Months or More Total
Securities Classified as Available-for-Sale 
Fair
Value
 
Unrealized
Loss
 

Fair Value
 
Unrealized
Loss
 
Fair
Value
 
Unrealized
Loss
March 31, 2020 $7
 $(1) $231
 $(2) $238
 $(3)
December 31, 2019 $1,653
 $(12) $6,984
 $(63) $8,637
 $(75)
 March 31, 2021December 31, 2020
Estimated Weighted Average Life of Investment SecuritiesFair ValueAmortized
Cost
Weighted
Average
Coupon
Weighted
Average
Yield
Fair ValueAmortized
Cost
Weighted
Average
Coupon
Weighted
Average
Yield
≤ 3 years$1,417 $1,382 3.44%2.91%$3,642 $3,569 3.56%2.15%
> 3 years and ≤ 5 years11,282 11,039 3.06%2.14%47,740 45,578 3.54%2.42%
> 5 years and ≤10 years50,166 48,918 3.31%2.46%15,019 14,541 2.87%2.08%
> 10 years2,632 2,636 2.19%1.84%13 13 5.56%3.59%
Total$65,497 $63,975 3.23%2.39%$66,414 $63,701 3.39%2.33%
Gains and Losses on Sale of Investment Securities
The following table is a summary of our net gain (loss) from the sale of investment securities for the three months ended March 31, 20202021 and 20192020 by investment classification of accounting (in millions):

 Three Months Ended March 31,Three Months Ended March 31,
 2020 201920212020
Investment Securities 
Available-for-Sale
Securities 2
 Fair Value Option Securities Total 
Available-for-Sale
Securities 2
 Fair Value Option Securities TotalInvestment Securities
Available-for-Sale
Securities 2
Fair Value Option SecuritiesTotal
Available-for-Sale
Securities 2
Fair Value Option SecuritiesTotal
Investment securities sold, at cost $(155) $(49,440) $(49,595) $(339) $(4,562) $(4,901)Investment securities sold, at cost$(493)$(5,864)$(6,357)$(155)$(49,440)$(49,595)
Proceeds from investment securities sold 1
 156
 49,933
 50,089
 335
 4,626
 4,961
Proceeds from investment securities sold 1
511 5,833 6,344 156 49,933 50,089 
Net gain (loss) on sale of investment securities $1
 $493
 $494
 $(4) $64
 $60
Net gain (loss) on sale of investment securities$18 $(31)$(13)$$493 $494 
            
Gross gain on sale of investment securities $1
 $567
 $568
 $
 $66
 $66
Gross gain on sale of investment securities$18 $49 $67 $$567 $568 
Gross loss on sale of investment securities 
 (74) (74) (4) (2) (6)Gross loss on sale of investment securities(80)(80)(74)(74)
Net gain (loss) on sale of investment securities $1
 $493
 $494
 $(4) $64
 $60
Net gain (loss) on sale of investment securities$18 $(31)$(13)$$493 $494 
  ________________________________
1.Proceeds include cash received during the period, plus receivable for investment securities sold during the period as of period end.
2.See Note 10 for a summary of changes in accumulated OCI.  

1.Proceeds include cash received during the period, plus receivable for investment securities sold during the period as of period end.
2.See Note 9 for a summary of changes in accumulated OCI. 

Note 5.4. Repurchase Agreements and Reverse Repurchase Agreements
Repurchase Agreements
We pledge our securities as collateral under our borrowings structured as repurchase agreements with financial institutions. Amounts available to be borrowed are dependent upon the fair value of the securities pledged as collateral, which fluctuates with changes in interest rates, type of security and liquidity conditions within the banking, mortgage finance and real estate industries. If the fair value of our pledged securities declines, lenders will typically require us to post additional collateral or pay down borrowings to re-establish agreed upon collateral requirements, referred to as "margin calls." Similarly, if the fair value of our pledged securities increases, lenders may release collateral back to us. As of March 31, 2020,2021, we had met all margin call requirements. For additional information regarding our pledged assets, please refer to Note 7.6.
As of March 31, 20202021 and December 31, 2019,2020, we had $66.5$55.1 billion and $89.2$52.4 billion, respectively, of repurchase agreements outstanding used to fund our investment portfolio and temporary holdings of U.S. Treasury securities.portfolio. The terms and conditions of our repurchase agreements are typically negotiated on a transaction-by-transaction basis. Our repurchase agreements with original maturities greater than one year may have floating interest rates based on an index plus or minus a fixed spread. The following


table summarizes our borrowings under repurchase agreements by their remaining maturities as of March 31, 20202021 and December 31, 20192020 (dollars in millions):
  March 31, 2020 December 31, 2019
Remaining Maturity Repurchase Agreements 
Weighted
Average
Interest
Rate
 
Weighted
Average Days
to Maturity
 Repurchase Agreements 
Weighted
Average
Interest
Rate
 
Weighted
Average Days
to Maturity
Agency repo:            
≤ 1 month $40,605
 1.06% 9
 $56,664
 2.19% 10
> 1 to ≤ 3 months 8,365
 1.79% 49
 20,761
 2.01% 53
> 3 to ≤ 6 months 5,450
 1.80% 97
 5,683
 2.19% 100
> 6 to ≤ 9 months 398
 2.18% 197
 1,500
 2.66% 182
> 9 to ≤ 12 months 4,509
 2.04% 286
 2,152
 2.41% 351
> 12 to ≤ 24 months 800
 2.67% 676
 625
 2.38% 411
> 24 to ≤ 36 months 2,900
 1.96% 909
 1,700
 2.45% 833
  Total Agency repo 63,027
 1.36% 93
 89,085
 2.17% 55
U.S. Treasury repo:            
> 1 day to ≤ 1 month 3,513
 0.87% 16
 97
 1.63% 2
Total $66,540
 1.33% 89
 $89,182
 2.17% 55
13


 March 31, 2021December 31, 2020
Remaining MaturityRepurchase AgreementsWeighted
Average
Interest
Rate
Weighted
Average Days
to Maturity
Repurchase AgreementsWeighted
Average
Interest
Rate
Weighted
Average Days
to Maturity
Agency repo:
≤ 1 month$31,193 0.12 %14 $29,505 0.22 %12 
> 1 to ≤ 3 months11,357 0.23 %65 13,434 0.27 %57 
> 3 to ≤ 6 months5,552 0.18 %139 7,317 0.28 %142 
> 6 to ≤ 9 months3,850 0.14 %270 660 0.24 %208 
> 9 to ≤ 12 months2,479 0.17 %316 1,450 0.15 %354 
> 12 to ≤ 24 months625 0.19 %406 %
Total$55,056 0.15 %73 $52,366 0.24 %54 
As of March 31, 20202021 and December 31, 2019, $20.72020, $4.3 billion and $17.0$11.2 billion, respectively, of our repurchase agreements had a remaining maturity of one business day and none of our repurchase agreements were due on demand. As of March 31, 2021, we had no forward commitments to enter into repurchase agreements. As of December 31, 2020, we had $9.3$2.9 billion of forward commitments to enter into repurchase agreements, with a weighted average forward start date of 164 days and a weighted average interest rate of 0.74%. As of December 31, 2019, we had $4.5 billion of forward commitments to enter into repurchase agreements, with a weighted average forward start date of 12 days and a weighted average interest rate of 1.60%0.12%. As of March 31, 20202021 and December 31, 2019, 56%2020, 45% and 40%47%, respectively, of our repurchase agreement funding was sourced through our wholly-owned captive broker-dealer subsidiary, Bethesda Securities, LLC ("BES"). Amounts sourced through BES include funding from the General Collateral Finance Repo service ("GCF Repo") offered by the Fixed Income Clearing Corporation ("FICC"), which totaled 54%44% and 38%46% of our repurchase agreement funding outstanding as of March 31, 20202021 and December 31, 2019,2020, respectively.
Reverse Repurchase Agreements
As of March 31, 20202021 and December 31, 2019,2020, we had $4.9$16.8 billion and $10.2$11.7 billion, respectively, of reverse repurchase agreements outstanding used primarily to borrow securities to cover short sales of U.S. Treasury securities, for which we had associated obligations to return borrowed securities at fair value of $4.9$15.1 billion and $9.5$11.7 billion, respectively. As of March 31, 20202021 and December 31, 2019, $4.62020, $3.3 billion and $5.4$3.6 billion, respectively, of our reverse repurchase agreements were with the FICC sourced through BES.

Note 6.5. Derivative and Other Hedging Instruments
We hedge a portion of our interest rate risk primarily utilizing interest rate swaps, interest rate swaptions, U.S. Treasury securities and U.S. Treasury futures contracts. We utilize TBA securities primarily as a means of investing in the Agency securities market. For additional information regarding our derivative instruments and our overall risk management strategy, please refer to the discussion of derivative and other hedging instruments in Note 3.2.

14


Derivative and Other Hedging Instrument Assets (Liabilities), at Fair Value
The table below summarizes fair value information about our derivative and other hedging instrument assets/(liabilities) as of March 31, 20202021 and December 31, 20192020 (in millions):
Derivative and Other Hedging InstrumentsBalance Sheet Location
March 31,
2021
December 31,
2020
Interest rate swapsDerivative assets, at fair value$45 $
SwaptionsDerivative assets, at fair value607 116 
TBA securitiesDerivative assets, at fair value13 275 
U.S. Treasury futures - shortDerivative assets, at fair value33 
Total derivative assets, at fair value$698 $391 
TBA securitiesDerivative liabilities, at fair value(589)
U.S. Treasury futures - shortDerivative liabilities, at fair value(2)
Total derivative liabilities, at fair value$(589)$(2)
U.S. Treasury securities - shortObligation to return securities borrowed under reverse repurchase agreements, at fair value(15,090)(11,727)
Total U.S. Treasury securities, net at fair value$(15,090)$(11,727)
Derivative and Other Hedging Instruments Balance Sheet Location March 31, 2020 December 31, 2019
Interest rate swaps Derivative assets, at fair value $
 $21
Swaptions Derivative assets, at fair value 21
 126
TBA securities Derivative assets, at fair value 643
 29
U.S. Treasury futures - short Derivative assets, at fair value 
 14
Total derivative assets, at fair value   $664
 $190
       
Interest rate swaps Derivative liabilities, at fair value $
 $(2)
TBA securities Derivative liabilities, at fair value (69) (4)
U.S. Treasury futures - short Derivative liabilities, at fair value (69) 
Total derivative liabilities, at fair value   $(138) $(6)
       
U.S. Treasury securities - long U.S. Treasury securities, at fair value $3,721
 $97
U.S. Treasury securities - short Obligation to return securities borrowed under reverse repurchase agreements, at fair value (4,886) (9,543)
Total U.S. Treasury securities, net at fair value   $(1,165) $(9,446)


The following tables summarize certain characteristics of our derivative and other hedging instruments outstanding as of March 31, 20202021 and December 31, 20192020 (dollars in millions):
 March 31, 2021December 31, 2020
Pay Fixed / Receive Variable Interest Rate SwapsNotional
Amount
Average
Fixed Pay 
Rate
Average
Receive
Rate
Average
Maturity
(Years)
Notional
Amount
Average
Fixed Pay 
Rate
Average
Receive
Rate
Average
Maturity
(Years)
≤ 3 years$14,000 0.12%0.02%2.4$8,750 0.04%0.08%2.4
> 3 to ≤ 5 years17,750 0.11%0.03%3.917,000 0.10%0.08%4.1
> 5 to ≤ 7 years9,800 0.21%0.02%5.69,800 0.21%0.08%5.8
> 7 to ≤ 10 years6,700 0.36%0.02%8.36,200 0.28%0.07%8.5
> 10 years1,475 0.47%0.02%13.91,475 0.47%0.07%14.2
Total$49,725 0.18%0.02%4.7$43,225 0.15%0.08%5.1
  March 31, 2020 December 31, 2019
Pay Fixed / Receive Variable Interest Rate Swaps Notional
Amount
 
Average
Fixed Pay 
Rate
 Average
Receive
Rate
 Average
Maturity
(Years)
 Notional
Amount
 
Average
Fixed Pay 
Rate
 Average
Receive
Rate
 Average
Maturity
(Years)
≤ 3 years $16,650
 0.86% 0.21% 2.5 $59,700
 1.30% 1.58% 1.6
> 3 to ≤ 5 years 17,350
 0.91% 0.06% 4.1 9,850
 1.17% 1.55% 3.8
> 5 to ≤ 7 years 7,600
 1.08% 0.21% 6.1 5,650
 1.34% 1.70% 6.4
> 7 to ≤ 10 years 3,900
 1.05% 0.08% 9.1 2,850
 1.36% 1.58% 8.9
> 10 years 975
 1.30% 0.45% 16.0 1,025
 1.64% 1.78% 15.4
Total $46,475
 0.94% 0.15% 4.5 $79,075
 1.29% 1.59% 2.7

Pay Fixed / Receive Variable Interest Rate Swaps by Receive Index (% of Notional Amount)
March 31,
2021
December 31, 2020
SOFR74 %71 %
OIS26 %29 %
Total100 %100 %
Pay Fixed / Receive Variable Interest Rate Swaps by Receive Index (% of Notional Amount) March 31, 2020 December 31, 2019
OIS 69% 86%
SOFR 26% 3%
3M LIBOR 5% 11%
Total 100% 100%
15




SwaptionsOptionUnderlying Payer Swap
Current Option Expiration DateCost BasisFair Value
Average
Months to Current Option
Expiration Date 1
Notional
Amount
Average Fixed Pay
Rate 2
Average
Term
(Years)
March 31, 2021
≤ 1 year$116 $110 6$5,400 2.17%9.0
> 1 year ≤ 2 years62 182 202,750 1.39%10.0
> 2 year ≤ 3 years129 292 334,750 1.96%10.0
> 3 year ≤ 4 years23 37250 1.43%10.0
Total$315 $607 19$13,150 1.92%9.6
December 31, 2020
≤ 1 year$123 $15 5$5,900 2.17%9.2
> 1 year ≤ 2 years41 33 202,000 1.38%10.0
> 2 year ≤ 3 years65 60 332,250 1.40%10.0
> 3 year ≤ 4 years40250 1.43%10.0
Total$237 $116 15$10,400 1.84%9.5

1.As of March 31, 2021 and December 31, 2020, ≤ 1 year notional amount includes $700 million of Bermudan swaptions where the options may be exercised on predetermined dates up to their final exercise date, which is six months prior to the underlying swaps' maturity date.
2.As of March 31, 2021, 20% and 80% of the underlying swap receive rates were tied to 3-Month LIBOR and SOFR, respectively. As of December 31, 2020, 33% and 67% of the underlying payer swap receive rates were tied to 3-Month LIBOR and SOFR, respectively.
U.S. Treasury SecuritiesMarch 31, 2021December 31, 2020
MaturityFace Amount Long/(Short)
Cost Basis 1
Fair ValueFace Amount Long/(Short)
Cost Basis 1
Fair Value
5 years$(1,965)$(1,946)$(1,921)$(425)$(425)$(425)
7 years(1,333)(1,323)(1,282)(1,083)(1,081)(1,089)
10 years(12,229)(12,269)(11,887)(9,780)(9,862)(10,213)
Total U.S. Treasury securities$(15,527)$(15,538)$(15,090)$(11,288)$(11,368)$(11,727)

1.As of March 31, 2021 and December 31, 2020, short U.S. Treasury securities had a weighted average yield of 1.17% and 1.20%, respectively.
 U.S. Treasury FuturesMarch 31, 2021December 31, 2020
MaturityNotional 
Amount
Long (Short)
Cost
Basis
Fair
Value
Net Carrying Value 1
Notional 
Amount
Long (Short)
Cost
Basis
Fair
Value
Net Carrying Value 1
10 years$(1,000)$(1,342)$(1,309)$33 $(1,000)$(1,379)$(1,381)$(2)

1.Net carrying value represents the difference between the fair market value and the cost basis (or the forward price to be paid/(received) for the underlying U.S. Treasury security) of the U.S. Treasury futures contract as of period-end and is reported in derivative assets/(liabilities), at fair value in our consolidated balance sheets.
16
Swaptions Option Underlying Payer Swap
Current Option Expiration Date Cost Basis Fair Value 
Average
Months to Current Option
Expiration Date 1
 
Notional
Amount
 
Average Fixed Pay
Rate
 
Average
Receive
Rate
(LIBOR)
 
Average
Term
(Years)
March 31, 2020              
≤ 1 year $132
 $11
 7 $6,350
 2.14% 3M 9.3
> 1 year ≤ 2 years 50
 10
 16 3,200
 2.41% 3M 10.0
Total $182
 $21
 10 $9,550
 2.23% 3M 9.5
               
December 31, 2019              
≤ 1 year $123
 $80
 8 $5,650
 2.26% 3M 9.3
> 1 year ≤ 2 years 53
 46
 16 3,200
 2.50% 3M 10.0
Total $176
 $126
 11 $8,850
 2.34% 3M 9.5

1.As of March 31, 2020 and December 31, 2019, ≤ 1 year notional amount includes $700 million of Bermudan swaptions where the options may be exercised on predetermined dates up to their final exercise date, which is six months prior to the underlying swaps' maturity date.

U.S. Treasury Securities March 31, 2020 December 31, 2019
Maturity Face Amount Long/(Short) 
Cost Basis 1
 Fair Value Face Amount Long/(Short) 
Cost Basis 1
 Fair Value
5 years $3,133
 $3,218
 $3,252
 $95
 $95
 $97
7 years (250) (252) (260) 
 
 
10 years (3,559) (3,653) (4,157) (9,224) (9,329) (9,543)
Total U.S. Treasury securities $(676) $(687) $(1,165) $(9,129) $(9,234) $(9,446)

 March 31, 2021December 31, 2020
TBA Securities by CouponNotional 
Amount
Long (Short)
Cost
Basis
Fair
Value
Net Carrying Value 1
Notional 
Amount
Long (Short)
Cost
Basis
Fair
Value
Net Carrying Value 1
15-Year TBA securities:
≤ 2.0%$(2,584)$(2,695)$(2,699)(4)$6,540 $6,708 $6,771 $63 
2.5%328 343 341 (2)200 208 209 
Total 15-Year TBA securities(2,256)(2,352)(2,358)(6)6,740 6,916 6,980 64 
30-Year TBA securities:
≤ 2.0%10,346 10,778 10,294 (484)19,805 20,314 20,480 166 
2.5%14,524 14,932 14,855 (77)3,167 3,291 3,335 44 
3.0%1,503 1,571 1,565 (6)528 552 553 
3.5%401 426 423 (3)124 131 131 
Total 30-Year TBA securities, net26,774 27,707 27,137 (570)23,624 24,288 24,499 211 
Total TBA securities, net$24,518 $25,355 $24,779 $(576)$30,364 $31,204 $31,479 $275 

1.As of March 31, 2020 and December 31, 2019, short U.S. Treasury securities had a weighted average yield of 2.07% and 2.19%, respectively, and long U.S. Treasury securities had a weighted average yield of 0.62% and 2.21%, respectively.
1.Net carrying value represents the difference between the fair market value and the cost basis (or the forward price to be paid/(received) for the underlying Agency security) of the TBA contract as of period-end and is reported in derivative assets/(liabilities), at fair value in our consolidated balance sheets.
 U.S. Treasury Futures March 31, 2020 December 31, 2019
Maturity 
Notional 
Amount
Long (Short)
 
Cost
Basis
 
Fair
Value
 
Net Carrying Value 1
 
Notional 
Amount
Long (Short)
 
Cost
Basis
 
Fair
Value
 
Net Carrying Value 1
10 years $(1,000) $(1,318) $(1,387) $(69) $(1,000) $(1,298) $(1,284) $14

1.Net carrying value represents the difference between the fair market value and the cost basis (or the forward price to be paid/(received) for the underlying U.S. Treasury security) of the U.S. Treasury futures contract as of period-end and is reported in derivative assets/(liabilities), at fair value in our consolidated balance sheets.


  March 31, 2020 December 31, 2019
TBA Securities by Coupon 
Notional 
Amount
Long (Short)
 
Cost
Basis
 
Fair
Value
 
Net Carrying Value 1
 
Notional 
Amount
Long (Short)
 
Cost
Basis
 
Fair
Value
 
Net Carrying Value 1
15-Year TBA securities:                
2.5% $100
 $92
 $104
 $12
 $805
 $811
 $812
 $1
3.0% 
 (4) 
 4
 1,059
 1,083
 1,086
 3
3.5% 
 
 
 
 241
 250
 250
 
4.0% 
 
 
 
 75
 78
 78
 
Total 15-Year TBA securities 100
 88
 104
 16
 2,180
 2,222
 2,226
 4
30-Year TBA securities:                
≤ 2.5% 5,786
 5,884
 5,974
 90
 
 
 
 
3.0% 9,072
 9,191
 9,502
 311
 5,008
 5,052
 5,073
 21
3.5% 3,366
 3,451
 3,556
 105
 1,226
 1,259
 1,261
 2
4.0% 1,955
 2,034
 2,086
 52
 (1,507) (1,565) (1,568) (3)
≥ 4.5% 
 
 
 
 415
 436
 437
 1
Total 30-Year TBA securities, net 20,179
 20,560
 21,118
 558
 5,142
 5,182
 5,203
 21
Total TBA securities, net $20,279
 $20,648
 $21,222
 $574
 $7,322
 $7,404
 $7,429
 $25

1.Net carrying value represents the difference between the fair market value and the cost basis (or the forward price to be paid/(received) for the underlying Agency security) of the TBA contract as of period-end and is reported in derivative assets/(liabilities), at fair value in our consolidated balance sheets.

Gain (Loss) From Derivative Instruments and Other Securities, Net
The following table summarizes changes in our derivative and other hedge portfolio and their effect on our consolidated statements of comprehensive income for the three months ended March 31, 20202021 and 20192020 (in millions):
Derivative and Other Hedging InstrumentsBeginning
Notional Amount
AdditionsSettlement, Termination,
Expiration or
Exercise
Ending
Notional Amount
Gain/(Loss)
on Derivative Instruments and Other Securities, Net 1
Three months ended March 31, 2021:
TBA securities, net$30,364 93,336 (99,182)$24,518 $(926)
Interest rate swaps - payer$43,225 7,000 (500)$49,725 1,124 
Payer swaptions$10,400 4,250 (1,500)$13,150 387 
U.S. Treasury securities - short position$(11,287)(7,261)3,021 $(15,527)807 
U.S. Treasury securities - long position$1,315 (1,315)$(10)
U.S. Treasury futures contracts - short position$(1,000)(1,000)1,000 $(1,000)61 
$1,443 
Three months ended March 31, 2020:
TBA securities, net$7,322 37,750 (24,793)$20,279 $693 
Interest rate swaps - payer$79,075 49,975 (82,575)$46,475 (2,795)
Payer swaptions$8,850 2,000 (1,300)$9,550 (134)
U.S. Treasury securities - short position$(9,224)(6,045)11,024 $(4,245)(937)
U.S. Treasury securities - long position$95 6,461 (2,987)$3,569 97 
U.S. Treasury futures contracts - short position$(1,000)(1,000)1,000 $(1,000)(104)
$(3,180)

Derivative and Other Hedging Instruments 
Beginning
Notional Amount
 Additions 
Settlement, Termination,
Expiration or
Exercise
 
Ending
Notional Amount
  
Gain/(Loss)
on Derivative Instruments and Other Securities, Net 1
Three months ended March 31, 2020:           
TBA securities, net $7,322
 37,750
 (24,793) $20,279
  $693
Interest rate swaps - payer $79,075
 49,975
 (82,575) $46,475
  (2,795)
Payer swaptions $8,850
 2,000
 (1,300) $9,550
  (134)
U.S. Treasury securities - short position $(9,224) (6,045) 11,024
 $(4,245)  (937)
U.S. Treasury securities - long position $95
 6,461
 (2,987) $3,569
  97
U.S. Treasury futures contracts - short position $(1,000) (1,000) 1,000
 $(1,000)  (104)
           $(3,180)
Three months ended March 31, 2019:           
TBA securities, net $7,152
 18,442
 (18,772) $6,822
  $83
Interest rate swaps $51,625
 5,350
 (8,800) $48,175
  (596)
Payer swaptions $3,500
 
 (950) $2,550
  (27)
U.S. Treasury securities - short position $(21,345) (4,770) 7,380
 $(18,735)  (425)
U.S. Treasury securities - long position $45
 405
 (330) $120
  
U.S. Treasury futures contracts - short position $(1,650) (1,650) 1,650
 $(1,650)  (31)
           $(996)
________________________________1.Amounts exclude other miscellaneous gains and losses recognized in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income.
1.Amounts exclude other miscellaneous gains and losses recognized in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income.

Note 7.6. Pledged Assets
Our funding agreements require us to fully collateralize our obligations under the agreements based upon our counterparties' collateral requirements and their determination of the fair value of the securities pledged as collateral, which fluctuates with changes in interest rates, credit quality and liquidity conditions within the investment banking, mortgage finance and real estate


industries. Our derivative contracts similarly require us to fully collateralize our obligations under such agreements, which will vary over time based on similar factors as well as our counterparties' determination of the value of the derivative contract. We are typically required to post initial margin upon execution of derivative transactions, such as under our
17


interest rate swap agreements and TBA contracts, and subsequently post or receive variation margin based on daily fluctuations in fair value. Our brokerage and custody agreements and the clearing organizations utilized by our wholly-owned captive broker-dealer subsidiary, Bethesda Securities, LLC, also require that we post minimum daily clearing deposits. If we breach our collateral requirements, we will be required to fully settle our obligations under the agreements, which could include a forced liquidation of our pledged collateral.
Our counterparties also apply a "haircut" to our pledged collateral, which means our collateral is valued at slightly less than market value and limits the amount we can borrow against our securities. This haircut reflects the underlying risk of the specific collateral and protects our counterparty against a change in its value. Our agreements do not specify the haircut; rather, haircuts are determined on an individual transaction basis. Consequently, our funding agreements and derivative contracts expose us to credit risk relating to potential losses that could be recognized if our counterparties fail to perform their obligations under such agreements. We minimize this risk by limiting our counterparties to major financial institutions with acceptable credit ratings or to registered clearinghouses and U.S. government agencies, and we monitor our positions with individual counterparties. In the event of a default by a counterparty, we may have difficulty obtaining our assets pledged as collateral to such counterparty and may not receive payments as and when due to us under the terms of our derivative agreements. In the case of centrally cleared instruments, we could be exposed to credit risk if the central clearing agency or a clearing member defaults on its respective obligation to perform under the contract. However, we believe that the risk is minimal due to the clearing exchanges' initial and daily mark-to-market margin requirements, clearinghouse guarantee funds and other resources that are available in the event of a clearing member default.
As of March 31, 2020 and December 31, 2019,2021, our maximum amount at risk with any counterparty related to our repurchase agreements, excluding the Fixed Income Clearing Corporation, was less than 6% and 4%, respectively,2% of our tangible stockholders' equity (measured as(or the excessexcess/shortfall of the value of collateral pledgedpledged/received over the amount of our repurchase liabilities)agreement liabilities/reverse repurchase agreement receivables). The following table summarizes certain characteristics of our repurchase agreements outstanding with counterparties representing amounts at risk greater than or equal to 5% of our stockholders' equity as of March 31, 2020 (dollars in millions):
  March 31, 2020
  Amount Outstanding 
Net Counterparty Exposure 1
 Percent of Stockholders' Equity Weighted Average Months to Maturity
J.P. Morgan Securities, LLC $5,102
 $518
 5.6% 23
______________________
1.Represents the net carrying value of securities pledged under repurchase agreements, including accrued interest plus any cash or assets on deposit to secure the repurchase obligation, less the amount of the repurchase liability, including accrued interest.
As of March 31, 2020 and December 31, 2019,2021, approximately 10%9% of our tangible stockholder's equity was at risk with the Fixed Income Clearing Corporation.
Assets Pledged to Counterparties
The following tables summarize our assets pledged as collateral under our funding, derivative and brokerage and clearing agreements by type, including securities pledged related to securities sold but not yet settled, as of March 31, 20202021 and December 31, 20192020 (in millions):
March 31, 2021
Assets Pledged to Counterparties 1
Repurchase Agreements 2
Debt of Consolidated VIEsDerivative Agreements
Brokerage and Clearing Agreements 3
Total
Agency RMBS - fair value$55,977 $270 $319 $153 $56,719 
CRT - fair value406 — — 406 
Non-Agency - fair value414 — — 414 
U.S. Treasury securities - fair value342 — 1,039 1,381 
Accrued interest on pledged securities145 147 
Restricted cash34 — 779 813 
Total$57,318 $271 $1,099 $1,192 $59,880 
December 31, 2020
Assets Pledged to Counterparties 1
Repurchase Agreements 2
Debt of Consolidated VIEsDerivative Agreements
Brokerage and Clearing Agreements 3
Total
Agency RMBS - fair value$53,401 $295 $365 $258 $54,319 
CRT - fair value455 — — 455 
Non-Agency - fair value458 — — 458 
Accrued interest on pledged securities147 150 
Restricted cash417 — 8901,307 
Total$54,878 $296 $1,256 $259 $56,689 

1.Includes repledged assets received as collateral from counterparties and securities sold but not yet settled.
2.Includes $106 million and $119 million of retained interests in our consolidated VIEs pledged as collateral under repurchase agreements as of March 31, 2021 and December 31, 2020, respectively.
3.Includes margin for TBAs cleared through prime brokers and other clearing deposits.
  March 31, 2020
Assets Pledged to Counterparties 1
 
Repurchase Agreements 2
 Debt of Consolidated VIEs Derivative Agreements 
Brokerage and Clearing Agreements 3
 Total
Agency RMBS - fair value $64,059
 $358
 $157
 $52
 $64,626
CRT - fair value 360
 
 
 
 360
Non-Agency - fair value 437
 
 
 
 437
U.S. Treasury securities - fair value 3,514
 
 207
 
 3,721
Accrued interest on pledged securities 195
 1
 1
 
 197
Restricted cash 1,040
 
 938
 
 1,978
Total $69,605
 $359
 $1,303
 $52
 $71,319
18




  December 31, 2019
Assets Pledged to Counterparties 1
 
Repurchase Agreements 2
 Debt of Consolidated VIEs Derivative Agreements 
Brokerage and Clearing Agreements 3
 Total
Agency RMBS - fair value $92,142
 $371
 $404
 $206
 $93,123
CRT - fair value 309
 
 
 
 309
U.S. Treasury securities - fair value 453
 
 
 28
 481
Accrued interest on pledged securities 267
 1
 1
 1
 270
Restricted cash 111
 
 340 
 451
Total $93,282
 $372
 $745
 $235
 $94,634

1.Includes repledged assets received as collateral from counterparties.
2.Includes $113 million and $144 million of retained interests in our consolidated VIEs pledged as collateral under repurchase agreements as of March 31, 2020 and December 31, 2019, respectively.
3.Includes margin for TBAs cleared through prime brokers and other clearing deposits.
The following table summarizes our securities pledged as collateral under our repurchase agreements by the remaining maturity of our borrowings, including securities pledged related to sold but not yet settled securities, as of March 31, 20202021 and December 31, 20192020 (in millions). For the corresponding borrowings associated with the following amounts and the interest rates thereon, refer to Note 54.
 March 31, 2021December 31, 2020
Securities Pledged by Remaining Maturity of Repurchase Agreements 1,2
Fair Value of Pledged SecuritiesAmortized
Cost of
Pledged Securities
Accrued
Interest on
Pledged
Securities
Fair Value of Pledged SecuritiesAmortized
Cost of
Pledged Securities
Accrued
Interest on
Pledged
Securities
  ≤ 30 days$31,543 $30,658 $81 $29,674 $28,208 $82 
  > 30 and ≤ 60 days4,205 4,080 12 8,438 8,013 23 
  > 60 and ≤ 90 days6,975 6,797 17 5,782 5,495 16 
  > 90 days14,074 13,786 35 10,420 10,068 26 
Total$56,797 $55,321 $145 $54,314 $51,784 $147 

  March 31, 2020 December 31, 2019
Securities Pledged by Remaining Maturity of Repurchase Agreements 1,2
 Fair Value of Pledged Securities 
Amortized
Cost of Pledged Securities
 
Accrued
Interest on
Pledged
Securities
 Fair Value of Pledged Securities 
Amortized
Cost of Pledged Securities
 
Accrued
Interest on
Pledged
Securities
  ≤ 30 days $45,038
 $43,542
 $126
 $56,990
 $55,951
 $167
  > 30 and ≤ 60 days 7,409
 7,101
 22
 14,410
 14,114
 42
  > 60 and ≤ 90 days 1,122
 1,087
 3
 7,637
 7,536
 20
  > 90 days 14,801
 14,215
 44
 13,510
 13,286
 38
Total $68,370
 $65,945
 $195
 $92,547
 $90,887
 $267
________________________________1.Includes $106 million and $119 million of retained interests in our consolidated VIEs pledged as collateral under repurchase agreements as of March 31, 2021 and December 31, 2020, respectively.
1.Includes $113 million and $144 million of retained interests in our consolidated VIEs pledged as collateral under repurchase agreements as of March 31, 2020 and December 31, 2019, respectively.
2.Excludes $357 million of repledged U.S. Treasury securities received as collateral from counterparties as of December 31, 2019.
2.Excludes $1.4 billion of repledged U.S. Treasury securities received as collateral from counterparties as of March 31, 2021.
Assets Pledged from Counterparties
As of March 31, 20202021 and December 31, 2019,2020, we had assets pledged to us from counterparties as collateral under our reverse repurchase and derivative agreements summarized in the tables below (in millions).
March 31, 2021December 31, 2020
Assets Pledged to AGNCReverse Repurchase AgreementsDerivative AgreementsRepurchase AgreementsTotalReverse Repurchase AgreementsDerivative AgreementsRepurchase AgreementsTotal
U.S. Treasury securities - fair value 1
$16,633 $$10 $16,643 $11,727 $$13 $11,740 
Cash— 594 10 604 — 107 110 
Total$16,633 $594 $20 $17,247 $11,727 $107 $16 $11,850 

  March 31, 2020 December 31, 2019
Assets Pledged to AGNC Reverse Repurchase Agreements Derivative Agreements Repurchase Agreements Total Reverse Repurchase Agreements Derivative Agreements Repurchase Agreements Total
U.S. Treasury securities - fair value 1
 $4,913
 $
 $(60) $4,853
 $10,099
 $
 $1
 $10,100
Cash 
 27
 
 27
 
 116
 
 116
Total $4,913
 $27
 $(60) $4,880
 $10,099
 $116
 $1
 $10,216
________________________________1.As of March 31, 2021, $1.4 billion of U.S. Treasury securities received from counterparties were repledged as collateral. As of March 31, 2021 and December 31, 2020, $15.1 billion and $11.7 billion, respectively, of U.S. Treasury securities received from counterparties were used to cover short sales of U.S. Treasury securities.
1.As of March 31, 2020 and December 31, 2019, $0 million and $357 million, respectively, of U.S. Treasury securities received from counterparties were repledged as collateral and $4.9 billion and $9.5 billion, respectively, were used to cover short sales of U.S. Treasury securities.
Offsetting Assets and Liabilities
Certain of our repurchase agreements and derivative transactions are governed by underlying agreements that generally provide for a right of setoff under master netting arrangements (or similar agreements), including in the event of default or in the event of bankruptcy of either party to the transactions. We present our assets and liabilities subject to such arrangements on a gross basis in our consolidated balance sheets. The following tables present information about our assets and liabilities that are subject to master netting arrangements and can potentially be offset on our consolidated balance sheets as of March 31, 20202021 and December 31, 20192020 (in millions):

19



Offsetting of Financial and Derivative Assets
 Gross Amounts of Recognized AssetsGross Amounts Offset in the Consolidated Balance SheetsNet Amounts of Assets Presented in the Consolidated Balance SheetsGross Amounts Not Offset
 in the
Consolidated Balance Sheets
Net Amount
Financial Instruments
Collateral Received 2
March 31, 2021
Interest rate swap and swaption agreements, at fair value 1
$652 $— $652 $$(593)$59 
TBA securities, at fair value13 — 13 (13)— 
Receivable under reverse repurchase agreements16,803 16,803 (8,435)(8,368)
Total$17,468 $$17,468 $(8,448)$(8,961)$59 
December 31, 2020
Interest rate swap and swaption agreements, at fair value 1
$116 $— $116 $$(105)$11 
TBA securities, at fair value275 — 275 — 275 
Receivable under reverse repurchase agreements11,748 — 11,748 (6,522)(5,223)
Total$12,139 $— $12,139 $(6,522)$(5,328)$289 
Offsetting of Financial and Derivative Liabilities
 Gross Amounts of Recognized LiabilitiesGross Amounts Offset in the Consolidated Balance SheetsNet Amounts of Liabilities Presented in the Consolidated Balance SheetsGross Amounts Not Offset
 in the
Consolidated Balance Sheets
Net Amount
Financial Instruments
Collateral Pledged 2
March 31, 2021
TBA securities, at fair value589 — 589 (13)(576)
Repurchase agreements55,056 55,056 (8,435)(46,621)
Total$55,645 $$55,645 $(8,448)$(47,197)$
December 31, 2020
Repurchase agreements52,366 — 52,366 (6,522)(45,844)
Total$52,366 $— $52,366 $(6,522)$(45,844)$

  Offsetting of Financial and Derivative Assets
  Gross Amounts of Recognized Assets Gross Amounts Offset in the Consolidated Balance Sheets Net Amounts of Assets Presented in the Consolidated Balance Sheets 
Gross Amounts Not Offset
 in the
Consolidated Balance Sheets
 Net Amount
     Financial Instruments 
Collateral Received 2
 
March 31, 2020            
Interest rate swap and swaption agreements, at fair value 1
 $21
 $
 $21
 $
 $(19) $2
TBA securities, at fair value 643
 
 643
 (69) 
 574
Receivable under reverse repurchase agreements 4,938
 
 4,938
 (4,938) 
 
Total $5,602
 $
 $5,602
 $(5,007) $(19) $576
             
December 31, 2019            
Interest rate swap and swaption agreements, at fair value 1
 $147
 $
 $147
 $(2) $(116) $29
TBA securities, at fair value 29
 
 29
 (4) 
 25
Receivable under reverse repurchase agreements 10,181
 
 10,181
 (9,852) (329) 
Total $10,357
 $
 $10,357
 $(9,858) $(445) $54
1.Reported under derivative assets / liabilities, at fair value in the accompanying consolidated balance sheets. Refer to Note 5 for a reconciliation of derivative assets / liabilities, at fair value to their sub-components.
2.Includes cash and securities pledged / received as collateral, at fair value. Amounts include repledged collateral. Amounts presented are limited to collateral pledged sufficient to reduce the net amount to zero for individual counterparties, as applicable.

  Offsetting of Financial and Derivative Liabilities
  Gross Amounts of Recognized Liabilities Gross Amounts Offset in the Consolidated Balance Sheets Net Amounts of Liabilities Presented in the Consolidated Balance Sheets 
Gross Amounts Not Offset
 in the
Consolidated Balance Sheets
 Net Amount
     Financial Instruments 
Collateral Pledged 2
 
March 31, 2020            
Interest rate swap agreements, at fair value 1
 $
 $
 $
 $
 $
 $
TBA securities, at fair value 69
 
 69
 (69) 
 
Repurchase agreements 66,540
 
 66,540
 (4,938) (61,602) 
Total $66,609
 $
 $66,609
 $(5,007) $(61,602) $
             
December 31, 2019            
Interest rate swap agreements, at fair value 1
 $2
 $
 $2
 $(2) $
 $
TBA securities, at fair value 4
 
 4
 (4) 
 
Repurchase agreements 89,182
 
 89,182
 (9,852) (79,330) 
Total $89,188
 $
 $89,188
 $(9,858) $(79,330) $

1.Reported under derivative assets / liabilities, at fair value in the accompanying consolidated balance sheets. Refer to Note 6 for a reconciliation of derivative assets / liabilities, at fair value to their sub-components.
2.Includes cash and securities pledged / received as collateral, at fair value. Amounts include repledged collateral. Amounts presented are limited to collateral pledged sufficient to reduce the net amount to zero for individual counterparties, as applicable.

Note 8.7. Fair Value Measurements
We determine the fair value of financial instruments based on our estimate of the price that would be received to sell the asset or paid to transfer the liability in an orderly transaction between market participants at the measurement date. We utilize a three-level valuation hierarchy for disclosure of fair value measurements based upon the transparency of inputs to the valuation of the instrument as of the measurement date. We categorize a financial instrument within the hierarchy based upon the lowest level of input that is significant to the fair value measurement.
The three levels of valuation hierarchy are defined as follows:
Level 1 Inputs —Quoted prices (unadjusted) for identical unrestricted assets and liabilities in active markets that are accessible at the measurement date.


Level 2 Inputs —Quoted prices for similar assets and liabilities 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 3 Inputs —Instruments with primarily unobservable market data that cannot be corroborated.
We typically obtain price estimates from multiple third-party pricing services and dealers or, if applicable, the registered clearing exchange. The following is a description of the valuation methodologies used for instruments carried at fair value on a recurring basis.
U.S. Treasury securities and futures prices - are valued based on quoted prices for identical instruments in active markets and are classified as Level 1 assets.
TBA securities - are valued using prices obtained from third-party pricing sources based on pricing models that reference recent trading activity.
Interest rate swaps - are valued using the daily settlement price, or fair value, determined by the clearing exchange based on a pricing model that references observable market inputs, including current benchmark rates and the forward yield curve.
Interest rate swaptions - are valued using prices obtained from the counterparty and other third-party pricing models. The pricing models are based on the value of the future interest rate swap that we have the option to enter into as well as the remaining length of time that we have to exercise the option based on observable market inputs, adjusted for non-performance risk, if any.
Investment securities - are valued based on prices obtained from multiple third-party pricing services and non-binding dealer quotes. These pricing sources utilize various valuation approaches, including market and income approaches. For Agency RMBS, the pricing sources primarily utilize a matrix pricing technique that interpolates the estimated fair value based on observed quoted prices for forward contracts in the Agency RMBS "to-be-announced" market ("TBA securities") of the same coupon, maturity and issuer, adjusted to reflect the specific characteristics of the pool of mortgages underlying the Agency security, which may include maximum loan balance, loan vintage, loan-to-value ratio, geography and other characteristics as may be appropriate. For other investment securities, the pricing sources primarily utilize discounted cash flow model-derived pricing techniques to estimate the fair value. Such models incorporate market-based discount rate assumptions based on observable inputs such as recent trading activity, credit data, volatility statistics, benchmark interest rate curves, spread measurements to benchmark curves and other market data that are current as of the measurement date and may include certain unobservable inputs, such as assumptions of future levels of prepayment, defaults and loss severities.
The availability of observable inputs can be affected by a wide variety of factors, including the type of instrument, whether the instrument is new and not yet established in the marketplace and other characteristics particular to the instrument. We make inquiries of third-party pricing sources to understand the significant inputs and assumptions they used to determine their prices and that they are derived from orderly transactions, particularly during periods of elevated market turbulence and reduced market liquidity. We also review third-party price estimates and perform procedures to validate their reasonableness, including an analysis of the range of estimates for each position, comparison to recent trade activity for similar securities and for consistency with market conditions observed as of the measurement date. While we do not adjust prices we obtain from pricing sources, we will exclude prices for securities from our estimation of fair value if we determine based on our validation procedures and our market knowledge and expertise that the price is significantly different from what observable market data would indicate and we cannot obtain an understanding from the third-party source as to the significant inputs used to determine the price.
The markets for interest rate swap, swaption and TBA derivatives and for the investment securities that we invest in are considered to be active markets such that participants transact with sufficient frequency and volume to provide transparent pricing information on an ongoing basis. The liquidity of these markets and the similarity of our securities and derivative instruments to those actively traded enable our pricing sources and us to observe quoted prices in the market and utilize those prices as a basis for formulating fair value measurements. Consequently, we classify these instruments as Level 2 inputs in the fair value hierarchy.
The following table provides a summary of our assets and liabilities that are measured at fair value on a recurring basis, as of March 31, 20202021 and December 31, 2019,2020, based on their categorization within the valuation hierarchy (in millions). There were no transfers between valuation hierarchy levels during the periods presented.


presented in our accompanying consolidated statements of comprehensive income.
  March 31, 2020 December 31, 2019
  Level 1 Level 2 Level 3 Level 1 Level 2 Level 3
Assets:            
Agency securities $
 $70,292
 $
 $
 $98,516
 $
Agency securities transferred to consolidated VIEs 
 358
 
 
 371
 
Credit risk transfer securities 
 574
 
 
 976
 
Non-Agency securities 
 552
 
 
 579
 
U.S. Treasury securities 3,721
 
 
 97
 
 
Interest rate swaps 
 
 
 
 21
 
Swaptions 
 21
 
 
 126
 
TBA securities 
 643
 
 
 29
 
U.S. Treasury futures 
 
 
 14
 
 
Total $3,721
 $72,440
 $
 $111
 $100,618
 $
Liabilities:            
Debt of consolidated VIEs $
 $214
 $
 $
 $228
 $
Obligation to return U.S. Treasury securities borrowed under reverse repurchase agreements 4,886
 
 
 9,543
 
 
Interest rate swaps 
 
 
 
 2
 
TBA securities 
 69
 
 
 4
 
U.S. Treasury futures 69
 
 
 
 
 
Total $4,955

$283

$
 $9,543
 $234
 $
20


March 31, 2021December 31, 2020
Level 1Level 2Level 3Level 1Level 2Level 3
Assets:
Agency securities$— $63,286 $— $— $64,836 $— 
Agency securities transferred to consolidated VIEs— 270 — — 295 — 
Credit risk transfer securities— 1,073 — — 737 — 
Non-Agency securities— 868 — — 546 — 
Interest rate swaps— 45 — — — 
Swaptions— 607 — — 116 — 
TBA securities— 13 — — 275 — 
U.S. Treasury futures33 — — — — 
Total$33 $66,162 $— $$66,805 $— 
Liabilities:
Debt of consolidated VIEs$— $165 $— $— $177 $— 
Obligation to return U.S. Treasury securities borrowed under reverse repurchase agreements15,090 — — 11,727 — — 
Interest rate swaps— — — — 
TBA securities— 589 — — — 
U.S. Treasury futures— — — — 
Total$15,090 $754 $— $11,729 $177 $— 
Excluded from the table above are financial instruments presented in our consolidated financial statements at cost. The fair value of our repurchase agreements was approximately $66.8 billionapproximated cost as of March 31, 2021 and December 31, 2020, compared to our cost of $66.5 billion, basedas the rates on lower prevailing interest rates observed in the repo market compared to our outstanding repurchase agreements. The fair value of our repurchase agreements as of December 31, 2019, approximated cost as thelargely corresponded to prevailing rates observed in the repo market largely corresponded to our outstanding repurchase agreements.market. The fair value of cash and cash equivalents, restricted cash, receivables and other payables were determined to approximate cost as of March 31, 20202021 and December 31, 2019,2020 due to their short duration. We estimate the fair value of these instruments carried at cost using "Level 1" or "Level 2" inputs.

Note 9.8. Net Income (Loss) Per Common Share

Basic net income (loss) per common share is computed by dividing (i) net income (loss) available (attributable) to common stockholders by (ii) the sum of our weighted-average number of common shares outstanding and the weighted-average number of vested but not yet issued time and performance-based restricted stock units ("RSUs") outstanding for the period granted under our long-term incentive program to employees and non-employee Board of Directors. Diluted net income (loss) per common share assumes the issuance of all potential common stock equivalents unless the effect is to reduce a loss or increase the income per common share. Our potential common stock equivalents consist of unvested time and performance-based RSUs. The following table presents the computations of basic and diluted net income (loss) per common share for the periods indicated (shares and dollars in millions):
  Three Months Ended March 31,
  2020 2019
Weighted average number of common shares issued and outstanding 547.5
 536.3
Weighted average number of fully vested restricted stock units outstanding 0.5
 0.4
Weighted average number of common shares outstanding - basic 548.0
 536.7
Weighted average number of dilutive unvested restricted stock units outstanding 
 0.5
Weighted average number of common shares outstanding - diluted 548.0
 537.2
Net income (loss) available (attributable) to common stockholders $(2,442) $255
Net income (loss) per common share - basic $(4.46) $0.48
Net income (loss) per common share - diluted $(4.46) $0.47



Three Months Ended March 31,
20212020
Weighted average number of common shares issued and outstanding532.5 547.5 
Weighted average number of fully vested restricted stock units outstanding1.2 0.5 
Weighted average number of common shares outstanding - basic533.7 548.0 
Weighted average number of dilutive unvested restricted stock units outstanding1.9 
Weighted average number of common shares outstanding - diluted535.6 548.0
Net income (loss) available (attributable) to common stockholders$950 $(2,442)
Net income (loss) per common share - basic$1.78 $(4.46)
Net income (loss) per common share - diluted$1.77 $(4.46)
For the three months ended March 31, 2020, 1.2 million of potentially dilutive unvested time and performance based RSUs outstanding were excluded from the computation of diluted net income (loss) per common share because to do so would have been anti-dilutive for the period.

21


Note 10.9. Stockholders' Equity  
Preferred Stock
We are authorized to designate and issue up to 10.0 million shares of preferred stock in one or more classes or series. As of March 31, 2021 and December 31, 2020, 13,800, 10,350, 16,100 and 23,000 shares of preferred stock were designated as 7.00% Series C Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock, 6.875% Series D Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock, 6.50% Series E Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock and 6.125% Series F Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock, respectively, (referred to as "Series C, D, E and F Preferred Stock", respectively). During February 2020, we issued $575 million, or 23,000 shares, of 6.125% Series F Preferred Stock, for net proceeds of $557 million. As of March 31, 2021 and December 31, 2020, 13,000, 9,400, 16,100 and 23,000 shares of Series C, D, E and F Preferred Stock, respectively, were issued and outstanding, with an aggregate carrying value of $1,489 million and aggregate liquidation preference of $1,538 million.outstanding. Each share of preferred stock is represented by 1,000 depositary shares. Each share of preferred stock has a liquidation preference of $25,000 per share (or $25 per depositary share).
Our preferred stock ranks senior to our common stock with respect to the payment of dividends and the distribution of assets upon a voluntary or involuntary liquidation, dissolution or winding up of the Company. Our preferred stock has no stated maturity, is not subject to any sinking fund or mandatory redemption and each series of preferred stock ranks on parity with one another. Under certain circumstances upon a change of control, our preferred stock is convertible to shares of our common stock. Holders of our preferred stock and depositary shares underlying our preferred stock have no voting rights, except under limited conditions. Beginning on each series' optional redemption date, we may redeem shares at $25.00 per depositary share, plus accumulated and unpaid dividends (whether or not declared), exclusively at our option.
The following table includes a summary of preferred stock depositary shares issued and outstanding as of March 31, 20202021 (dollars and shares in millions):
Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock 1
Issuance
Date
Depositary
Shares
Issued
and
Outstanding
Carrying
Value
 Aggregate
Liquidation Preference
Fixed
Rate
Optional
Redemption
Date 2
Fixed-to-Floating
Rate
Conversion
Date
Floating
Annual Rate
Series CAugust 22, 201713.0 315 325 7.000%October 15, 2022October 15, 20223M LIBOR + 5.111%
Series DMarch 6, 20199.4 227 235 6.875%April 15, 2024April 15, 20243M LIBOR + 4.332%
Series EOctober 3, 201916.1 390 403 6.500%October 15, 2024October 15, 20243M LIBOR + 4.993%
Series FFebruary 11, 202023.0 557 575 6.125%April 15, 2025April 15, 20253M LIBOR + 4.697%
Total61.5 $1,489 $1,538 

1.Fixed-to-floating rate redeemable preferred stock accrue dividends at an annual fixed rate of the $25.00 liquidation preference per depositary share from the issuance date up to, but not including, the fixed-to-floating rate conversion date; thereafter, dividends will accrue on a floating rate basis equal to 3-month LIBOR plus a fixed spread.
2.Shares may be redeemed prior to our optional redemption date under certain circumstances intended to preserve our qualification as a REIT for U.S federal income tax purposes.
1.Fixed-to-floating rate redeemable preferred stock accrue dividends at an annual fixed rate of the $25.00 liquidation preference per depositary share from the issuance date up to, but not including, the fixed-to-floating rate conversion date; thereafter, dividends will accrue on a floating rate basis equal to 3-month LIBOR plus a fixed spread.
2.Shares may be redeemed prior to our optional redemption date under certain circumstances intended to preserve our qualification as a REIT for U.S federal income tax purposes.
At-the-Market Offering Program
We are authorized by our Board of Directors to enter into agreements with sales agents to publicly offer and sell shares of our common stock in privately negotiated and/or at-the-market transactions from time-to-time up to a maximum aggregate offering price of our common stock. During the three months ended March 31, 2020, we sold 26.7 million shares of our common stock under the sales agreements for proceeds of $439 million, or $16.46 per common share, net of offering costs. As of March 31, 2020,2021, shares of our common stock with an aggregate offering price of $26 million remained authorized for issuance under this program through June 14, 2021.
Common Stock Repurchase Program
From time-to-time we are authorized by our Board of Directors to repurchase shares of our common stock under certain conditions. In July 2019,October 2020, our Board of Directors authorized the repurchase of up to $1 billion of our outstanding shares of common stock through December 31, 2020.2021. During the three months ended March 31, 2021, we repurchased 15.0 million shares, or $239 million, of our common stock for an average repurchase price of $16.00 per common share, inclusive of transaction cost and including amounts repurchased in December 2020 that settled in January 2021. As of March 31, 2020,2021, we had $0.9$0.7 billion of common stock remaining available for repurchase.repurchase through December 31, 2021.

We may repurchase shares in the open market or through privately negotiated transactions or pursuant to a trading plan that may be adopted in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). We intend to repurchase shares under the stock repurchase program only when the repurchase price is less than our then-current estimate of our tangible net book value per common share.
22


Accumulated Other Comprehensive Income (Loss)
The following table summarizes changes to accumulated OCI for the three months ended March 31, 20202021 and 20192020 (in millions):
Three Months Ended March 31,
Accumulated Other Comprehensive Income (Loss)20212020
Beginning Balance$719 $97 
OCI before reclassifications(219)465 
Net loss amounts for available-for-sale securities reclassified from accumulated OCI to realized gain (loss) on sale of investment securities, net(18)(1)
Ending Balance$482 $561 
  Three Months Ended March 31,
Accumulated Other Comprehensive Income (Loss) 2020 2019
Beginning Balance $97
 $(943)
OCI before reclassifications 465
 396
Net loss amounts for available-for-sale securities reclassified from accumulated OCI to realized gain (loss) on sale of investment securities, net (1) 4
Ending Balance $561
 $(543)


Note 11. Subsequent Events
Common Stock Dividend Declaration
On April 8, 2020, our Board of Directors declared a monthly dividend of $0.12 per common share payable on May 11, 2020 to common stockholders of record as of April 30, 2020.
Common Stock Repurchases
Subsequent to March 31, 2020, we repurchased 10.1 million shares, or $121 million, of our common stock for an average repurchase price of $12.04 per common share, including transaction costs.



Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations
Management's Discussion and Analysis of Financial Condition and Results of Operations ("MD&A") is designed to provide a reader of AGNC Investment Corp.'s consolidated financial statements with a narrative from the perspective of management and should be read in conjunction with the consolidated financial statements and accompanying notes included in this Quarterly Report on Form 10-Q for quarterly period ended March 31, 2020.2021. Our MD&A is presented in six sections:
Executive Overview
Financial Condition
Results of Operations
Liquidity and Capital Resources
Off-Balance Sheet Arrangements
Forward-Looking Statements
EXECUTIVE OVERVIEW
We are an internally managed Real Estate Investment Trust ("REIT"). We commenced operations on May 20, 2008 following the completiona leading provider of our initial public offering. Our common stock is traded on The Nasdaq Global Select Market under the symbol "AGNC."
As a REIT, we are required to distribute annually 90% of our taxable income, and we will generally not be subject to U.S. federal or state corporate income taxprivate capital to the extent that we distribute all our annual taxable income to our stockholders on a timely basis. It is our intention to distribute 100% of our taxable income withinU.S. housing market, enhancing liquidity in the time limits prescribed byresidential real estate mortgage markets and, in turn, facilitating home ownership in the Internal Revenue Code, which may extend into the subsequent taxable year.
U.S. We invest primarily in Agency residential mortgage-backed securities ("Agency RMBS") on a leveraged basis. These investments consist of residential mortgage pass-through securities and collateralized mortgage obligations for which the principal and interest payments are guaranteed by a U.S. Government-sponsored enterprise, such as Federal National Mortgage Association ("Fannie Mae") and Federal Home Loan Mortgage Corporation ("Freddie Mac," and together with Fannie Mae, the "GSEs"), or by a U.S. Government agency, such as Government National Mortgage Association ("Ginnie Mae"). We may also invest in other types ofassets related to the housing, mortgage and mortgage-related residential and commercial mortgage-backed securities where repayment of principal and interest isor real estate markets that are not guaranteed by a GSE or U.S. Government agency and in other investments in, or related to,agency.
We are internally managed with the housing, mortgage or real estate markets.
Our principal objective is to provideof providing our stockholders with attractive risk-adjusted returns through a combination of monthly dividends and tangible net book value accretion. We generate income from the interest earned on our investments, net of associated borrowing and hedging costs, and net realized gains and losses on our investment and hedging activities. We fund our investments primarily through collateralized borrowings structured as repurchase agreements. We operate in a manner to qualify to be taxed as a REIT under the Internal Revenue Code.
The size and composition of our investment portfolio depends on the investment strategies we implement, availability of attractively priced investments, suitable financing to appropriately leverage our investment portfolio and overall market conditions. Market conditions are influenced by a variety of factors, including interest rates, prepayment expectations, liquidity, housing prices, unemployment rates, general economic conditions, government participation in the mortgage market, regulations and relative returns on other assets.

Trends and Recent Market Impacts
On March 11, 2020,Optimism regarding the World Health Organization characterized COVID-19,potential for a respiratory disease caused by a novel coronavirus, as a pandemic, and, on March 13, 2020, President Trump declared the COVID-19 outbreak (the "Pandemic")strong economic recovery in the U.S. a national emergency. The Pandemic resulted in stay-at-home orders, school closures and widespread business shutdowns globally, significantly adversely affecting worldwide economies. Extensive shutdowns and business reductionssecond half of 2021 pushed most risk-asset prices higher in the U.S. were expectedfirst quarter of 2021. The improved economic outlook and additional fiscal stimulus led to substantiallya substantial increase unemployment levelsin longer term interest rates and sparked concerns that the U.S. GDP could contract at Depression-era levels. Reactions to the human and economic impactsa material steepening of the Pandemic led to swift and severe financial market dislocations that had a significant impact on our business and financial resultsyield curve during the first quarter.
Thequarter, with the 10-year U.S. government has taken actions to reduce the negative impact of the Pandemic. For example, Congress passed multiple rounds of legislationTreasury yield increasing and expanding unemployment benefits, providing direct cash payments to eligible taxpayers, and allocating funds to assist businesses. In March, the Federal Reserve (the "Fed") lowered the federal funds rate target by 15082 basis points to close the zero-bound range. Importantly, the Fed also committedfirst quarter at 1.74%, nearly 125 basis points above its unlimited support of the U.S. Treasury and Agency MBS markets through unprecedented levels of asset purchases. The Fed also significantly increased its support for


the repurchase agreement ("repo") funding markets for Treasury and Agency mortgage backed securities by offering to provide up to an additional $1 trillion of daily liquidity to the overnight repo market,historical low in addition to its ongoing open market repo operations. The Federal Housing Finance Administration ("FHFA") also announced large-scale mortgage forbearance programs, and some states enacted bans on foreclosures to protect borrowers and avoid a steep decline in the housing market.
The financial market dislocations during March resulted in a significant decline in the valuations of Agency MBS and other fixed-income products, causing spreads to widen to levels unseen since the depths of 2008 before the Fed's bold and decisive actions began to take hold and stabilized the broader fixed income markets.August 2020. Despite the Fed's actions,sharp rise in rates, Agency RMBS performed well during the extreme intra-quarter volatility, coupled with significantly weaker valuations on our holdingsquarter, outperforming interest rate hedges. Residential credit performance was mixed and ranged from largely flat to modest increases in valuations.
23


For the first quarter, we earned an economic return of specified pools, drove a 22.9% decline8.2%, comprised of $1.01 increase in our tangible net book value per common share resultingand $0.36 of dividends per common share. Our performance in a negativethe first quarter marks our fourth consecutive quarter of economic returns of 7.5% or more and brings our last twelve-month cumulative economic return on tangible common equityto 40.7%.
Asset positioning remained an important factor in driving our favorable performance during the first quarter. Similar to prior quarters, we benefited from the differing risk profiles of 20.2% for the quarter.
In March, we transitioned to a fully remote work force, ensuring the safety and well-beingtwo primary components of our employees. Our prior investments in technology, business continuity planningasset portfolio: low coupon generic securities and cyber security protocols enabledhigher coupon specified pool securities, which together have bolstered our performance across a seamless transition to this new paradigm. Benefit plans offered to all our employees have also helped to ensure their well-being, including comprehensive health insurance benefits, access to 24/7 Teladoc services, on-call family supportwide range of interest rate and mental health services, short and long-term disability benefits and others.
spread scenarios over the past twelve months. During the first quarter, we prioritized liquidityour higher coupon specified pools benefited from the steep rise in rates and risk managementcorresponding reduction in responseprepayment expectations. This contrasts with the third and fourth quarters of 2020, during which our lower coupon generic securities outperformed as mortgage rates declined to adverse market conditions,historic lows and drove mortgage prepayment rates to a 20-year high. Our hedge portfolio, which was mainly comprised of intermediate and longer-term hedges, also contributed significantly to our positive first quarter results as such, took several actions to mitigatehedge gains exceeded the impact of the severe market volatility and disruptionsaggregate price declines on our business. Specifically, we repositioned our assets, strategically managed our liquidity and funding exposure, and adjusted our hedge positions. In aggregate, we reducedasset portfolio.
As of March 31, 2021, our investment portfolio by $15totaled $90.3 billion, compared to $93$97.9 billion as of quarter-end. The net decline in our asset baseDecember 31, 2020 and consisted of principal pay-downs of $4$63.6 billion Agency RMBS, $24.8 billion net TBA securities, and sales of approximately $25$1.9 billion of lower coupon, relatively generic Agency MBS, which were partially replaced with $14 billionCRT and non-Agency securities. Our "at risk" leverage, as of current production coupon TBA securities. Importantly,March 31, 2021, was 7.7x our salestangible equity, compared to 8.5x as of these lower coupon generic MBS enabled us to build liquidity while maintaining our higher quality specified pools, as the premiums, or "pay-up" values, for these securities had declined in mid-March to severely depressed levels. Pay-up values improved somewhat prior to quarter-end but still contributed to about half of the decline in our net book value per common share for the quarter.
To further strengthen ourDecember 31, 2020. Our liquidity position, we maintained our entire TBA positionconsisting of unencumbered Agency RMBS, US Treasury securities and cash and excluding both unencumbered credit assets and assets held at our broker-dealer subsidiary, Bethesda Securities, LLC ("BES") and shifted a larger portion of our Agency repo funding towas largely unchanged during the General Collateral Finance Repo service offered by the Fixed Income Clearing Corporation ("FICC") through BES to 54% of our Agency repo funding,first quarter at $5.2 billion as of March 31, 2020,2021, compared to 38%$5.4 billion as of December 31, 2019.2020, or 48% and 51%, respectively, of our tangible equity. The result was a significant reduction in "haircut" levels, and in turn, margin requirementsaverage prepayment rate on our funding obligations comparedAgency RMBS holdings during the first quarter was 24.6%, down from 27.6% for the fourth quarter of 2020. Consistent with the significant increase in primary mortgage rates of approximately 50 basis points over the first quarter, our average CPR forecast for the remaining life of our Agency RMBS decreased to traditional bi-lateral repo agreements.11.3% as of March 31, 2021, from 17.6% as of December 31, 2020.
Our leverageinterest rate exposure remained limited during the first quarter as we managed the size and liquiditycomposition of our hedge position in response to changing market conditions. We proactively increased our interest rate hedge portfolio during the first quarter to $79 billion through the addition of interest rate swaps, swaptions and U.S. Treasury hedges to provide incremental protection against rising interest rates. As of March 31, 2021, our interest rate hedges totaled 98% of our funding liabilities, up from 80% as of December 31, 2020 and from a twelve-month low of 66% at the end of March was at normal operating levels. Our "at risk" leverage ratio was 9.4x and our unencumbered assets totaled 54%the second quarter of our tangible equity, unchanged from December 31, 2019. (See Liquidity and Capital Resources for additional discussion of unencumbered assets as2020. As of March 31, 2020).
With2021, 72% of our hedges had a maturity of four years or more, which was a significant contributor to our first quarter hedge performance given the Fed lowering shortsharp rise in longer term rates to near zero, treasury bond yields fell substantially, and interest rate swaps also repriced dramatically lower duringrates. Consistent with the quarter. The declineincrease in interest rates reduced the duration of our assets, which in turn reduced our near term hedging requirements. As such, we reduced our shorter-dated interest rate swap position and our short U.S. Treasury position but also added some longer-dated swaps at very low pay-rates. In aggregate, our interest rate hedge position decreased to 70% of our funding liabilities, inclusive of our net TBA position (at cost), as of March 31, 2020, from 102% as of December 31, 2019, and the average pay-rate oncorresponding extension of mortgage durations during the quarter, our fixed to floating rate interest rate swaps declined 35 basis points to 0.94% as of March 31, 2020, from December 31, 2019.
Our duration gap, which is a measure of the mismatchdifference between the interest rate sensitivity of our assets and liabilities, inclusive of our interest rate hedges, endedincreased to 0.6 years as of March 31, 2021 from -0.5 years as of December 31, 2020.
Net spread and dollar roll income (a non-GAAP measure) was $0.76 per diluted common share for the first quarter, near zero. With interestwhich excludes a "catch-up" premium amortization benefit of $0.40 per diluted common share due to changes in CPR projections for securities acquired prior to the first quarter. This compares to net spread and dollar roll income of $0.75 and $0.57 per diluted common share for the fourth and first quarters of 2020, respectively, excluding $0.44 and $0.20 of "catch-up" premium amortization expense, respectively. The marginal improvement in net spread and dollar roll income for the first quarter was due to the combination of lower funding costs, the sharp decline in CPR projections, and earnings accretion due to common stock share repurchases, which more than offset our lower operating leverage and an overall decline in asset yields during the quarter. (Please refer to Results of Operations below for further information regarding non-GAAP measures.)
Our average asset yield, excluding "catch-up" amortization and including the implied yield on our TBA securities, declined to 2.02% for the first quarter, compared to 2.07% for the fourth quarter and to 2.97% for the first quarter 2020, as lower prevailing yields on new asset purchases outweighed the yield improvement due to lower CPR projections.
The funding environment for Agency RMBS remained very favorable during the first quarter, with our average repo funding cost declining to 21 basis points from 38 basis points for the fourth quarter and 180 basis points for the first quarter 2020. As of March 31, 2021, our average repo rate was 0.15%, compared to 0.24% as of December 31, 2020. Favorable repo rates, at historically low absolute levels, there is significantlyand even lower implied financing rates in the TBA dollar roll market, more extension riskthan offset a modest increase in our interest rate swap costs during the first quarter. Our aggregate cost of funds, including implied TBA dollar roll funding and interest rate swap costs, for the first quarter was 0.02%, compared to 0.05% for the fourth quarter and 1.67% for the first quarter of 2020.
Looking ahead, we expect that the near zero short-term interest rate environment is likely to remain in place through at least 2023 and the Federal Reserve ("Fed") is unlikely to begin tapering its Agency RMBS purchases before 2022, with any such tapering likely to gradually occur over a multi-month period. The Fed has also indicated it will communicate its intentions well in advance of taking any such action to reduce market uncertainty. Importantly, even after the Fed completes the taper
24


process, it has indicated that it intends to continue to reinvest portfolio and in the mortgage market as a whole. Although negative interest rates are certainly possible,paydowns for an extended period of time. Against this backdrop, we believe the Fed would likely utilize all its monetary policy tools, includingAgency RMBS sector remains attractive, particularly when compared on a relative value basis to other asset purchases, providing forward guidance and other measures, before loweringclasses. Nonetheless, given the Fed funds target to a level materially below zero. Given this asymmetric risk profile and the low cost of longer-dated hedges, we anticipate operating with a flat or even negative duration gapsignificant spread tightening that has occurred in the current environment.
Additionally, assector relative to benchmark interest rates, we look ahead,chose to operate with sequentially lower leverage in recent quarters. Going forward, we believe liquidity concerns will give waymay choose to fundamental performance metrics, with prepayments and funding beingoperate at somewhat lower leverage levels than the key determinantsfirst quarter of AGNC's prospective returns. Although tremendous uncertainty remains regarding the extent2021 to which the federal government's actions will mitigate the shortpotential downside risk to our tangible net book value associated with reduced Fed purchases and long-term negative impacts of the Pandemic on the U.S. economy, we believe our portfolio composition is favorably positioned for the current environment. We have minimal credit exposure, and the GSE guarantee provides timely payment of principal and interest on our Agency holdings. On the prepayment front, we believe social distancing, operational headwinds, and negative credit conditions arising from the Pandemic are likely to persist over the near term, causing meaningful disruptions to the mortgage origination and refinance process. We expect that these disruptions will mitigate increases in aggregate prepayment speeds resulting from today's very low interest


rate environment over the next several quarters. These disruptions, coupled with historically low funding costs, should benefit our net interestfuture spread offsetting some of the negative impact of our smaller asset base. As conditions ease, we anticipate prepayment activity increasing, assuming rates remain near current levels, but we believe our portfolio will perform relativelywidening, as well despite faster aggregate prepayments given the concentration of our holdings in low coupon TBA securities and high quality specified pool positions, which have slower prepayment characteristics.
Longer-term risks remain, however. The Fed could prematurely reduce its support of the mortgage and funding markets, and the eventual unwind of its asset purchases could result in renewed strains on the mortgage and broader fixed income markets. Despite the favorable prepayment profile of our portfolio holdings, we could experience a higher than anticipated level of prepayment activity. In addition, after extended forbearance periods, borrower delinquencies could eventually lead to large scale GSE buyouts of delinquent loans from mortgage pools. Increased market volatility could also negatively impact mortgage spreads and reduce liquidity. Although any one of these events could negatively impact our financial position, we believe Agency MBS continueas to provide the most attractive risk adjusted returns within the fixed income markets. For additional information regarding our interest rate and spread sensitivity please refercapacity for us to Quantitative and Qualitative Disclosures about Market Risk and regarding risks associated with the economic and financial market turbulence resulting from the COVID-19 Pandemic to Risk Factors in this Form 10-Q.increase leverage opportunistically when expected return levels are more favorable.
Market Information
The following table summarizes interest rates and prices of generic fixed rate Agency RMBS as of each date presented below:
Interest Rate/Security Price 1
Mar. 31, 2020June 30, 2020Sept. 30, 2020Dec. 31, 2020Mar. 31, 2021
Mar. 31, 2021
vs
Dec. 31, 2020
Target Federal Funds Rate:
Target Federal Funds Rate - Upper Band0.25%0.25%0.25%0.25%0.25%— bps
SOFR:
SOFR Rate0.01%0.10%0.08%0.07%0.01%-6 bps
SOFR Interest Rate Swap Rate:
2-Year Swap0.09%—%0.03%0.06%0.12%+6 bps
5-Year Swap0.24%0.08%0.13%0.24%0.82%+58 bps
10-Year Swap0.45%0.38%0.47%0.71%1.52%+81 bps
30-Year Swap0.61%0.63%0.86%1.15%1.92%+77 bps
U.S. Treasury Security Rate:
2-Year U.S. Treasury0.25%0.15%0.13%0.12%0.16%+4 bps
5-Year U.S. Treasury0.38%0.29%0.28%0.36%0.94%+58 bps
10-Year U.S. Treasury0.67%0.66%0.69%0.92%1.74%+82 bps
30-Year U.S. Treasury1.32%1.41%1.46%1.65%2.41%+76 bps
30-Year Fixed Rate Agency Price:
1.5%N/AN/A$100.66$101.05$96.59-$4.46
2.0%$100.91$102.33$103.39$103.88$99.70-$4.18
2.5%$103.59$104.26$104.90$105.41$102.55-$2.86
3.0%$104.83$105.33$104.75$104.77$104.13-$0.64
3.5%$105.70$105.18$105.40$105.66$105.63-$0.03
4.0%$106.67$105.98$106.64$106.78$107.31+$0.53
15-Year Fixed Rate Agency Price:
1.5%N/AN/A$102.31$102.89$100.40-$2.49
2.0%$102.66$103.46$103.95$104.55$102.61-$1.94
2.5%$103.72$104.70$104.44$104.30$104.06-$0.24
3.0%$104.61$105.09$104.94$104.97$105.59+$0.62
3.5%$105.19$105.06$105.81$106.03$106.69+$0.66
4.0%$105.56$105.75$106.15$106.28$106.34+$0.06

Interest Rate/Security Price 1
 Mar. 31, 2019 June 30, 2019 Sept. 30, 2019 Dec. 31, 2019 Mar. 31, 2020 
Mar. 31, 2020
vs
Dec. 31, 2019
Target Federal Funds Rate:             
Target Federal Funds Rate - Upper Band 2.50% 2.50% 2.00% 1.75% 0.25% -150
bps
LIBOR:             
1-Month 2.49% 2.40% 2.02% 1.76% 0.99% -77
bps
3-Month 2.60% 2.32% 2.09% 1.91% 1.45% -46
bps
U.S. Treasury Security Rate:             
2-Year U.S. Treasury 2.26% 1.75% 1.62% 1.57% 0.25% -132
bps
5-Year U.S. Treasury 2.23% 1.77% 1.54% 1.69% 0.38% -131
bps
10-Year U.S. Treasury 2.41% 2.01% 1.66% 1.92% 0.67% -125
bps
30-Year U.S. Treasury 2.81% 2.53% 2.11% 2.39% 1.32% -107
bps
Interest Rate Swap Rate:             
2-Year Swap 2.38% 1.81% 1.63% 1.70% 0.49% -121
bps
5-Year Swap 2.28% 1.77% 1.50% 1.73% 0.52% -121
bps
10-Year Swap 2.41% 1.96% 1.56% 1.90% 0.72% -118
bps
30-Year Swap 2.58% 2.21% 1.71% 2.09% 0.88% -121
bps
30-Year Fixed Rate Agency Price:             
2.5% $97.10 $99.36 $99.55 $98.89 $103.59 +$4.70
3.0% $99.55 $100.84 $101.51 $101.42 $104.83 +$3.41
3.5% $101.35 $102.24 $102.58 $102.86 $105.70 +$2.84
4.0% $102.86 $103.36 $103.77 $104.01 $106.67 +$2.66
4.5% $104.20 $104.49 $105.29 $105.29 $107.47 +$2.18
15-Year Fixed Rate Agency Price:             
2.5% $99.39 $100.67 $100.85 $100.91 $103.72 +$2.81
3.0% $100.89 $101.95 $102.21 $102.50 $104.61 +$2.11
3.5% $102.28 $103.20 $103.42 $103.69 $105.19 +$1.50
4.0% $103.00 $103.84 $104.08 $104.28 $105.56 +$1.28
________________________________1.Price information is for generic instruments only and is not reflective of our specific portfolio holdings. Price information is as of 3:00 p.m. (EST) on such date and can vary by source. Prices in the table above were obtained from Barclays. Interest and LIBOR rates were obtained from Bloomberg.
1.Price information is for generic instruments only and is not reflective of our specific portfolio holdings. Price information is as of 3:00 p.m. (EST) on such date and can vary by source. Prices and interest rates in the table above were obtained from Barclays. LIBOR rates were obtained from Bloomberg.



25


FINANCIAL CONDITION
As of March 31, 20202021 and December 31, 2019,2020, our investment portfolio consisted of $71.8$65.5 billion and $100.4$66.4 billion of investment securities, at fair value, respectively, and $21.2$24.8 billion and $7.4$31.5 billion of TBA securities, at fair value, respectively. The following table is a summary of our investment portfolio as of March 31, 20202021 and December 31, 20192020 (dollars in millions):
March 31, 2021December 31, 2020
Investment Portfolio (Includes TBAs)Amortized CostFair ValueAverage Coupon%Amortized CostFair ValueAverage Coupon%
Fixed rate Agency RMBS and TBA securities:
 ≤ 15-year:
 ≤ 15-year RMBS$15,402 $15,469 2.24 %17 %$9,256 $9,482 2.48 %10 %
15-year TBA securities, net 1
(2,352)(2,358)2.38 %(3)%6,916 6,980 1.74 %%
Total ≤ 15-year13,050 13,111 2.22 %15 %16,172 16,462 2.16 %17 %
20-year RMBS2,626 2,627 2.49 %%2,409 2,470 2.58 %%
30-year:
30-year RMBS43,631 45,026 3.58 %50 %50,312 52,663 3.55 %54 %
30-year TBA securities, net 1
27,707 27,137 2.35 %30 %24,288 24,499 2.05 %25 %
Total 30-year71,338 72,163 3.10 %80 %74,600 77,162 3.06 %79 %
Total fixed rate Agency RMBS and TBA securities87,014 87,901 2.95 %97 %93,181 96,094 2.89 %98 %
Adjustable rate Agency RMBS61 62 2.30 %— %69 70 2.35 %— %
Multifamily— — — %— %17 19 3.31 %— %
CMO Agency RMBS:
CMO249 259 3.23 %— %289 301 3.30 %%
Interest-only strips42 55 5.59 %— %45 59 5.57 %— %
Principal-only strips54 58 — %— %60 67 — %— %
Total CMO Agency RMBS345 372 4.10 %%394 427 4.10 %%
Total Agency RMBS and TBA securities87,420 88,335 2.95 %98 %93,661 96,610 2.90 %99 %
Non-Agency RMBS487 495 3.16 %%178 188 4.28 %— %
CMBS356 373 4.06 %— %333 358 4.13 %— %
CRT1,067 1,073 3.30 %%733 737 3.43 %%
Total investment portfolio$89,330 $90,276 2.96 %100 %$94,905 $97,893 2.91 %100 %

1.TBA securities are presented net of long and short positions. For further details of our TBA securities refer to Note 5 of our Consolidated Financial Statements in this Form 10-Q.
  March 31, 2020 December 31, 2019
Investment Portfolio (Includes TBAs) Amortized Cost Fair Value Average Coupon % Amortized Cost Fair Value Average Coupon %
Fixed rate Agency RMBS and TBA securities:                
 ≤ 15-year:                
 ≤ 15-year RMBS $5,650
 $5,830
 3.27% 6% $6,140
 $6,239
 3.29% 6%
15-year TBA securities, net 1
 88
 104
 2.50% % 2,222
 2,226
 2.91% 2%
Total ≤ 15-year 5,738
 5,934
 3.26% 6% 8,362
 8,465
 3.19% 8%
20-year RMBS 1,099
 1,136
 3.50% 1% 752
 773
 3.87% 1%
30-year:                
30-year RMBS 60,535
 62,935
 3.86% 68% 89,483
 91,062
 3.67% 84%
30-year TBA securities, net 1
 20,560
 21,118
 3.03% 23% 5,182
 5,203
 2.92% 5%
Total 30-year 81,095
 84,053
 3.64% 90% 94,665
 96,265
 3.63% 89%
Total fixed rate Agency RMBS and TBA securities 87,932
 91,123
 3.62% 98% 103,779
 105,503
 3.60% 98%
Adjustable rate Agency RMBS 118
 120
 2.69% % 160
 163
 3.04% %
Multifamily 37
 42
 3.37% % 37
 39
 3.37% %
CMO Agency RMBS:                
CMO 406
 422
 3.43% % 441
 447
 3.44% 1%
Interest-only strips 60
 77
 4.92% % 63
 77
 4.22% %
Principal-only strips 78
 88
 % % 83
 87
 % %
Total CMO Agency RMBS 544
 587
 3.81% 1% 587
 611
 3.48% 1%
Total Agency RMBS and TBA securities 88,631
 91,872
 3.62% 99% 104,563
 106,316
 3.59% 99%
Non-Agency RMBS 225
 204
 4.16% % 198
 209
 4.05% 1%
CMBS 360
 348
 4.29% 1% 352
 370
 4.49% %
CRT 775
 574
 4.27% 1% 961
 976
 5.07% 1%
Total investment portfolio $89,991
 $92,998
 3.62% 100% $106,074
 $107,871
 3.61% 100%

1.
TBA securities are presented net of long and short positions. As of March 31, 2020, 30-year TBA securities consisted of $21.4 billion long and $(0.3) billion short TBA securities (at fair value) at an average coupon of 3.03% and 3.00%, respectively, and 15-year TBA securities consisted of entirely long TBA securities at an average coupon of 2.50%. As of December 31, 2019, 30-year TBA securities consisted of $6.8 billion long and $(1.6) billion short TBA securities at an average coupon of 3.17% and 4.00%, respectively, and 15-year TBA securities consisted entirely of long TBA securities at an average coupon of 2.91%. For further details of our TBA securities held as of each date refer to Note 6 of the accompanying consolidated financial statements.
TBA securities are recorded as derivative instruments in our accompanying consolidated financial statements, and our TBA dollar roll transactions represent a form of off-balance sheet financing. As of March 31, 20202021 and December 31, 2019,2020, our TBA positions had a net carrying value of $574$(576) million and $25$275 million, respectively, reported in derivative assets /(liabilities) 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 contract and the contract price to be paid or received for the underlying Agency security.
As of March 31, 20202021 and December 31, 2019,2020, the weighted average yield on our investment securities (excluding TBA securities) was 2.93%2.39% and 3.07%2.33%, respectively.

26



The following tables summarize certain characteristics of our fixed rate Agency RMBS portfolio, inclusive of TBAs, as of March 31, 20202021 and December 31, 20192020 (dollars in millions):
 March 31, 2020 March 31, 2021
 Includes Net TBA Position Excludes Net TBA PositionIncludes Net TBA PositionExcludes Net TBA Position
Fixed Rate Agency RMBS and TBA Securities Par Value 
Amortized
Cost
 Fair Value 
Specified Pool % 1
 
Amortized
Cost Basis
 Weighted Average 
Projected
CPR 3
Fixed Rate Agency RMBS and TBA SecuritiesPar ValueAmortized
Cost
Fair Value
Specified Pool % 1
Amortized
Cost Basis
Weighted Average
Projected
CPR 3
WAC 2
 
Yield 3
 Age (Months)
WAC 2
Yield 3
Age (Months)
Fixed rate       Fixed rate
≤ 15-year       
≤ 15-year: ≤ 15-year:
1.5%1.5%$3,462 $3,518 $3,474 —%102.4%2.31%0.99%410%
2.0%2.0%5,593 5,794 5,747 1%103.3%2.55%1.30%39%
2.5% $961
 $961
 $997
 67% 100.9% 2.98% 2.11% 89 13%2.5%771 812 807 58%105.7%3.06%1.22%1711%
3.0% 1,950
 1,982
 2,048
 92% 101.8% 3.53% 2.41% 51 12%3.0%1,082 1,099 1,153 94%101.6%3.55%2.47%4714%
3.5% 1,671
 1,709
 1,770
 93% 102.3% 4.03% 2.83% 29 13%3.5%1,147 1,171 1,240 100%102.1%4.03%2.76%4316%
4.0% 942
 970
 1,002
 91% 103.0% 4.60% 3.05% 29 14%
≥ 4.5% 112
 116
 117
 97% 103.2% 4.89% 2.99% 115 15%
≥ 4.0%≥ 4.0%637 656 690 91%103.0%4.61%2.93%4217%
Total ≤ 15-year 5,636
 5,738
 5,934
 88% 102.0% 3.81% 2.61% 48 13%Total ≤ 15-year12,692 13,050 13,111 27%103.0%2.82%1.53%1111%
20-year                 
20-year:20-year:
≤ 2.0%≤ 2.0%1,454 1,500 1,473 —%103.1%2.87%1.51%56%
2.5% 148
 155
 153
 —% 105.0% 3.51% 1.32% 4 22%2.5%560 583 579 —%104.2%3.28%1.74%99%
3.0% 264
 278
 279
 21% 105.2% 3.81% 1.58% 4 21%3.0%45 46 48 98%103.3%3.78%2.26%2012%
3.5% 271
 276
 292
 81% 101.9% 4.05% 2.95% 79 13%3.5%209 213 225 81%101.8%4.05%2.96%9213%
4.0% 189
 194
 206
 92% 103.2% 4.45% 3.12% 37 15%
≥ 4.5% 187
 196
 206
 100% 104.7% 5.00% 3.21% 41 16%
≥ 4.0%≥ 4.0%273 284 302 96%104.1%4.74%3.13%5215%
Total 20-year: 1,059
 1,099
 1,136
 61% 103.9% 4.15% 2.45% 35 17%Total 20-year:2,541 2,626 2,627 20%103.4%3.27%1.87%189%
30-year:       30-year:
≤ 2.5% 6,787
 6,896
 7,010
 —% 101.1% 3.51% 2.21% 0 17%
2.0%2.0%13,606 14,076 13,545 1%101.2%2.80%1.85%16%
2.5%2.5%19,072 19,723 19,531 1%105.4%3.44%1.76%78%
3.0% 13,344
 13,527
 13,997
 6% 101.5% 3.74% 2.73% 27 16%3.0%4,119 4,280 4,314 13%103.5%3.74%2.38%3610%
3.5% 20,704
 21,502
 22,182
 74% 104.1% 4.05% 2.67% 56 12%3.5%11,575 12,102 12,543 87%104.5%4.06%2.64%7011%
4.0% 25,654
 26,735
 27,863
 84% 104.2% 4.51% 3.04% 42 15%4.0%12,596 13,235 13,851 92%105.1%4.51%2.93%5613%
≥ 4.5% 11,836
 12,435
 13,001
 98% 105.1% 5.00% 3.28% 28 17%≥ 4.5%7,482 7,922 8,379 98%105.9%5.01%3.21%4215%
Total 30-year 78,325
 81,095
 84,053
 64% 104.1% 4.40% 2.94% 41 14%Total 30-year68,450 71,338 72,163 45%104.7%4.19%2.66%4612%
Total fixed rate $85,020
 $87,932
 $91,123
 65% 103.9% 4.35% 2.91% 42 14%Total fixed rate$83,683 $87,014 $87,901 42%104.2%3.81%2.34%3611%

1.
1.Specified pools include pools backed by lower balance loans with original loan balances of up to $200K, HARP pools (defined as pools that were issued between May 2009 and December 2018 and backed by 100% refinance loans with original LTVs ≥ 80%), and pools backed by loans 100% originated in New York and Puerto Rico. As of March 31, 2020, lower balance specified pools had a weighted average original loan balance of $116,000 and $119,000 for 15-year and 30-year securities, respectively, and HARP pools had a weighted average original LTV of 119% and 136% for 15-year and 30-year securities, respectively.
2.WAC represents the weighted average coupon of the underlying collateral.
3.
Portfolio yield incorporates a projected life CPR based on forward rate assumptions as of March 31, 2020.





  December 31, 2019
  Includes Net TBA Position Excludes Net TBA Position
Fixed Rate Agency RMBS and TBA Securities Par Value 
Amortized
Cost
 Fair Value 
Specified Pool % 1
 
Amortized
Cost Basis
 Weighted Average 
Projected
CPR 3
 
WAC 2
 
Yield 3
 Age (Months)
Fixed rate                  
 ≤ 15-year                  
 ≤ 2.5% $1,720
 $1,735
 $1,738
 40% 101.0% 2.98% 2.11% 86 11%
3.0% 2,985
 3,041
 3,067
 59% 101.7% 3.52% 2.45% 58 10%
3.5% 2,299
 2,354
 2,401
 71% 102.2% 4.04% 2.86% 25 13%
4.0% 1,075
 1,109
 1,135
 84% 103.1% 4.60% 3.05% 26 14%
4.5% 117
 122
 123
 98% 103.5% 4.87% 3.00% 111 13%
≥ 5.0% 1
 1
 1
 100% 101.9% 6.55% 4.55% 146 15%
Total ≤ 15-year 8,197
 8,362
 8,465
 63% 102.0% 3.82% 2.65% 47 12%
20-year                  
3.5% 284
 289
 297
 81% 102.0% 4.05% 2.97% 77 12%
4.0% 196
 202
 209
 92% 103.3% 4.45% 3.18% 34 13%
4.5% 194
 204
 210
 100% 104.8% 5.00% 3.23% 37 15%
≥ 5.0% 1
 1
 1
 —% 105.1% 5.95% 3.33% 141 18%
Total 20-year: 675
 696
 717
 90% 103.2% 4.40% 3.05% 49 13%
30-year:                  
 ≤ 3.0% 27,864
 28,218
 28,252
 3% 101.4% 3.85% 2.73% 8 9%
3.5% 23,760
 24,525
 24,902
 60% 103.3% 4.05% 2.97% 49 10%
4.0% 26,934
 28,062
 28,795
 84% 104.2% 4.51% 3.25% 37 11%
4.5% 12,730
 13,381
 13,831
 93% 105.1% 4.98% 3.45% 23 13%
5.0% 380
 410
 416
 94% 108.0% 5.50% 3.28% 39 14%
≥ 5.5% 63
 69
 69
 49% 109.6% 6.18% 3.33% 158 13%
Total 30-year 91,731
 94,665
 96,265
 55% 103.3% 4.29% 3.07% 31 11%
Total fixed rate $100,603
 $103,723
 $105,447
 56% 103.3% 4.26% 3.04% 32 11%
________________________________
1.See Note 1 of preceding table for specified pool composition. As of December 31, 2019, lower balance specified pools had a weighted average original loan balance of $115,000 and $118,000 for 15-year and 30-year securities, respectively, and HARP pools had a weighted average original LTV of 119% and 136% for 15-year and 30-year securities, respectively.
2.WAC represents the weighted average coupon of the underlying collateral.
3.Portfolio yield incorporates a projected life CPR based on forward rate assumptions as of December 31, 2019.
As of March 31, 20202021, lower balance specified pools had a weighted average original loan balance of $119,000 and $116,000 for 15-year and 30-year securities, respectively, and HARP pools had a weighted average original LTV of 127% and 137% for 15-year and 30-year securities, respectively.
2.WAC represents the weighted average coupon of the underlying collateral.
3.Portfolio yield incorporates a projected life CPR based on forward rate assumptions as of March 31, 2021.


27


 December 31, 2020
Includes Net TBA PositionExcludes Net TBA Position
Fixed Rate Agency RMBS and TBA SecuritiesPar ValueAmortized
Cost
Fair Value
Specified Pool % 1
Amortized
Cost Basis
Weighted Average
Projected
CPR 3
WAC 2
Yield 3
Age (Months)
Fixed rate
 ≤ 15-year:
1.5%$5,001 $5,107 $5,144 —%102.4%2.28%0.91%113%
2.0%6,718 6,958 7,023 —%103.8%2.62%1.01%215%
2.5%795 836 840 59%105.5%3.07%1.10%1315%
3.0%1,168 1,186 1,248 94%101.5%3.55%2.46%4416%
3.5%1,249 1,275 1,356 100%102.1%4.03%2.75%4018%
≥ 4.0%788 810 851 92%102.8%4.63%2.92%4719%
Total ≤ 15-year15,719 16,172 16,462 23%103.1%3.09%1.59%1716%
20-year:
≤ 2.0%1,168 1,202 1,215 —%103.0%2.87%1.29%315%
2.5%597 620 630 —%103.9%3.28%1.33%620%
3.0%48 50 52 98%103.0%3.78%2.10%1719%
3.5%226 230 246 81%101.6%4.05%2.93%8918%
≥ 4.0%296 307 327 96%103.6%4.73%3.05%4820%
Total 20-year:2,335 2,409 2,470 23%103.2%3.34%1.70%1817%
30-year:
≤ 2.0%23,805 24,445 24,628 —%103.2%2.89%1.51%11%
2.5%8,995 9,423 9,506 4%105.2%3.43%1.35%416%
3.0%3,507 3,619 3,709 17%102.9%3.74%2.03%3322%
3.5%12,913 13,428 14,151 88%104.0%4.07%2.48%6617%
4.0%14,245 14,847 15,734 92%104.2%4.51%2.81%5219%
≥ 4.5%8,417 8,838 9,434 98%105.0%5.01%3.04%3821%
Total 30-year71,882 74,600 77,162 48%104.3%4.17%2.43%4218%
Total fixed rate$89,936 $93,181 $96,094 43%104.0%3.98%2.28%3718%

1.See Note 1 of preceding table for specified pool composition. As of December 31, 2019,2020, lower balance specified pools had a weighted average original loan balance of $117,000 and $117,000 for 15-year and 30-year securities, respectively, and HARP pools had a weighted average original LTV of 126% and 137% for 15-year and 30-year securities, respectively.
2.WAC represents the weighted average coupon of the underlying collateral.
3.Portfolio yield incorporates a projected life CPR based on forward rate assumptions as of December 31, 2020.
For additional details regarding our investments in CRT and non-Agency securities, had the followingincluding credit ratings:ratings, as of March 31, 2021 and December 31, 2020, please refer to Note 3 of our Consolidated Financial Statements in this Form 10-Q.
  March 31, 2020 December 31, 2019
CRT and Non-Agency Security Credit Ratings 1
 
CRT 2
 RMBS CMBS 
CRT 2
 RMBS CMBS
AAA $
 $
 $34
 $
 $
 $43
AA 
 65
 204
 
 81
 214
A 
 29
 30
 13
 25
 34
BBB 97
 72
 55
 67
 71
 69
BB 233
 23
 25
 471
 21
 10
B 175
 5
 
 308
 4
 
Not Rated 69
 10
 
 117
 7
 
Total $574
 $204
 $348
 $976
 $209
 $370
 ________________________________
1.Represents the lowest of Standard and Poor's ("S&P"), Moody's, Fitch, DBRS, Kroll Bond Rating Agency ("KBRA") and Morningstar credit ratings, stated in terms of the S&P equivalent rating as of each date.
2.CRT securities reference the performance of loans underlying Agency RMBS issued by Fannie Mae or Freddie Mac, each of which were subject to Fannie Mae and Freddie Mac's underwriting standards.


RESULTS OF OPERATIONS
Non-GAAP Financial Measures
In addition to the results presented in accordance with GAAP, our results of operations discussed below include certain non-GAAP financial information, including "economic interest income," "economic interest expense," "net spread and dollar roll income," "net spread and dollar roll income, excluding 'catch-up' premium amortization," "estimated taxable income" and the related per common share measures and certain financial metrics derived from such non-GAAP information, such as "cost of funds" and "net interest spread."
"Economic interest income" is measured as interest income (GAAP measure), adjusted (i) to exclude "catch-up" premium amortization associated with changes in CPR estimates and (ii) to include TBA dollar roll implied interest income. "Economic interest expense" is measured as interest expense (GAAP measure) adjusted to include TBA dollar roll implied interest expenseexpense/(benefit) and interest rate swap periodic income/(cost)cost/(income). "Net spread and dollar roll income, excluding "catch-up" premium amortization" includes (i) the components of economic interest income and economic interest expense and other interest and dividend income (referred to as "adjusted net interest and dollar roll income"), less (ii) total operating expenses (GAAP measure).
28


By providing such measures, in addition to the related GAAP measures, we believe we give greater transparency into the information used by our management in its financial and operational decision-making. We also believe it is important for users of our financial information to consider information related to our current financial performance without the effects of certain measures and one-time events that are not necessarily indicative of our current investment portfolio performance and operations.
Specifically, in the case of "adjusted net interest and dollar roll income," we believe the inclusion of TBA dollar roll income is meaningful as TBAs, which are accounted for under GAAP as derivative instruments with gains and losses recognized in other gain (loss) in our consolidated statement of comprehensive income, are economically equivalent to holding and financing generic Agency RMBS using short-term repurchase agreements. Similarly, we believe that the inclusion of periodic interest rate swap settlements in "economic interest expense" is meaningful as interest rate swaps are the primary instrument we use to economically hedge against fluctuations in our borrowing costs and it is more indicative of our total cost of funds than interest expense alone. In the case of "economic interest income" and "net spread and dollar roll income, excluding 'catch-up' premium amortization," we believe the exclusion of "catch-up" adjustments to premium amortization cost or benefit is meaningful as it excludes the cumulative effect from prior reporting periods due to current changes in future prepayment expectations and, therefore, exclusion of such cost or benefit is more indicative of the current earnings potential of our investment portfolio. In the case of estimated taxable income, we believe it is meaningful information because it directly relates to the amount of dividends that we are required to distribute to maintain our REIT qualification status.
However, because such measures are incomplete measures of our financial performance and involve differences from results computed in accordance with GAAP, they should be considered as supplementary to, and not as a substitute for, results computed in accordance with GAAP. In addition, because not all companies use identical calculations, our presentation of such non-GAAP measures may not be comparable to other similarly-titled measures of other companies. Furthermore, estimated taxable income can include certain information that is subject to potential adjustments up to the time of filing our income tax returns, which occurs after the end of our fiscal year.
Selected Financial Data


The following selected financial data is derived from our interim consolidated financial statements and the notes thereto. The tables below present our condensed consolidated balance sheets as of March 31, 20202021 and December 31, 20192020 and our condensed consolidated statements of comprehensive income and key statistics for the three months ended March 31, 20202021 and 2019 (in2020(in millions, except per share amounts):


March 31,December 31,
Balance Sheet Data20212020
(Unaudited)
Investment securities, at fair value$65,497 $66,414 
Total assets$85,545 $81,817 
Repurchase agreements and other debt$55,221 $52,543 
Total liabilities$74,181 $70,738 
Total stockholders' equity$11,364 $11,079 
Net book value per common share 1
$18.72 $17.68 
Tangible net book value per common share 2
$17.72 $16.71 
($ in Millions, Except Per Share Amounts)    
Balance Sheet Data March 31, 2020 December 31, 2019
  (Unaudited)
  
Investment securities, at fair value $71,776
 $100,442
Total assets $85,137
 $113,082
Repurchase agreements and other debt $66,754
 $89,410
Total liabilities $75,339
 $102,041
Total stockholders' equity $9,798
 $11,041
Net book value per common share 1
 $14.55
 $18.63
Tangible net book value per common share 2
 $13.62
 $17.66
29

  Three Months Ended March 31,
Statement of Comprehensive Income Data 2020 2019
Interest income $491
 $705
Interest expense 426
 541
Net interest income 65
 164
Other gain (loss), net (2,463) 120
Operating expenses 23
 19
Net income (loss) (2,421) 265
Dividends on preferred stock 21
 10
Net income (loss) available (attributable) to common stockholders $(2,442) $255
     
Net income (loss) $(2,421) $265
Other comprehensive income, net 464
 400
Comprehensive income (loss) (1,957) 665
Dividends on preferred stock 21
 10
Comprehensive income (loss) available (attributable) to common stockholders $(1,978) $655
     
Weighted average number of common shares outstanding - basic 548.0
 536.7
Weighted average number of common shares outstanding - diluted 548.0
 537.2
Net income (loss) per common share - basic $(4.46) $0.48
Net income (loss) per common share - diluted $(4.46) $0.47
Comprehensive income (loss) per common share - basic $(3.61) $1.22
Comprehensive income (loss) per common share - diluted $(3.61) $1.22
Dividends declared per common share $0.48
 $0.54


Three Months Ended
March 31,
Statement of Comprehensive Income Data (Unaudited)20212020
Interest income$557 $491 
Interest expense29 426 
Net interest income528 65 
Other gain (loss), net471 (2,463)
Operating expenses24 23 
Net income (loss)975 (2,421)
Dividends on preferred stock25 21 
Net income (loss) available (attributable) to common stockholders$950 $(2,442)
Net income (loss)$975 $(2,421)
Other comprehensive income (loss), net(237)464 
Comprehensive income (loss)738 (1,957)
Dividends on preferred stock25 21 
Comprehensive income (loss) available (attributable) to common stockholders$713 $(1,978)
Weighted average number of common shares outstanding - basic533.7 548.0 
Weighted average number of common shares outstanding - diluted535.6 548.0 
Net income (loss) per common share - basic$1.78 $(4.46)
Net income (loss) per common share - diluted$1.77 $(4.46)
Comprehensive income (loss) per common share - basic$1.34 $(3.61)
Comprehensive income (loss) per common share - diluted$1.33 $(3.61)
Dividends declared per common share$0.36 $0.48 

 Three Months Ended March 31,
Three Months Ended
March 31,
Other Data (Unaudited) * 2020 2019Other Data (Unaudited) *20212020
Average investment securities - at par $94,933
 $87,021
Average investment securities - at par$56,641 $94,933 
Average investment securities - at cost $97,889
 $89,952
Average investment securities - at cost$58,948 $97,889 
Average net TBA portfolio - at cost $7,487
 $8,002
Average net TBA portfolio - at cost$32,022 $7,487 
Average total assets - at fair value $113,930
 $114,994
Average total assets - at fair value$79,415 $113,930 
Average repurchase agreements and other debt outstanding 3
 $93,538
 $82,070
Average repurchase agreements and other debt outstanding 3
$54,602 $93,538 
Average stockholders' equity 4
 $10,735
 $10,186
Average stockholders' equity 4
$11,312 $10,735 
Average tangible net book value "at risk" leverage 5
 9.9:1
 9.3:1
Average tangible net book value "at risk" leverage 5
8.0:19.9:1
Tangible net book value "at risk" leverage (as of period end) 6
 9.4:1
 9.4:1
Tangible net book value "at risk" leverage (as of period end) 6
7.7:19.4:1
Economic return on tangible common equity 7
 (20.2)% 7.3%
Expenses % of average total assets 0.08 % 0.07%
Expenses % of average assets, including average net TBA position 0.08 % 0.06%
Expenses % of average stockholders' equity 0.86 % 0.75%
Economic return on tangible common equity - unannualized 7
Economic return on tangible common equity - unannualized 7
8.2 %(20.2)%
Expenses % of average total assets - annualizedExpenses % of average total assets - annualized0.12 %0.08 %
Expenses % of average assets, including average net TBA position - annualizedExpenses % of average assets, including average net TBA position - annualized0.09 %0.08 %
Expenses % of average stockholders' equity - annualizedExpenses % of average stockholders' equity - annualized0.85 %0.86 %

* Except as noted below, average numbers for each period are weighted based on days on our books and records.
1.Net book value per common share is calculated as total stockholders' equity, less preferred stock liquidation preference, divided by number of common shares outstanding as of period end.
2.Tangible net book value per common share excludes goodwill.
3.Amount excludes U.S. Treasury repurchase agreements and TBA contracts. Other debt includes debt of consolidated VIEs.
4.Average stockholders' equity calculated as average month-ended stockholders' equity during the period.
5.Average tangible net book value "at risk" leverage is calculated by dividing the sum of daily weighted average mortgage borrowings outstanding (Agency and non-Agency MBS repurchase agreements, other debt and TBA securities (at cost)) for the period by the sum of average stockholders' equity adjusted to exclude goodwill for the period. Leverage excludes U.S. Treasury repurchase agreements.
6."At risk" leverage as of period end is calculated by dividing the sum of mortgage borrowings outstanding and receivable/payable for unsettled investment securities as of period end (at cost) by the sum of total stockholders' equity adjusted to exclude goodwill as of period end. Leverage excludes U.S. Treasury repurchase agreements.
7.Economic return on tangible common equity represents the sum of the change in tangible net book value per common share and dividends declared per share of common stock during the period over beginning tangible net book value per common share.

1.Net book value per common share is calculated as total stockholders' equity, less preferred stock liquidation preference, divided by number of common shares outstanding as of period end.
2.Tangible net book value per common share excludes goodwill.
3.Amount excludes U.S. Treasury repurchase agreements and TBA contracts. Other debt includes debt of consolidated VIEs.
4.Average stockholders' equity calculated as average month-ended stockholders' equity during the period.
5.Average tangible net book value "at risk" leverage is calculated by dividing the sum of daily weighted average repurchase agreements used to fund our investment securities, other debt and TBA securities (at cost) (together "mortgage borrowings") outstanding for the period by the sum of average stockholders' equity adjusted to exclude goodwill for the period. Leverage excludes U.S. Treasury repurchase agreements.
6.Tangible net book value "At risk" leverage as of period end is calculated by dividing the sum of mortgage borrowings outstanding and receivable/payable for unsettled investment securities as of period end (at cost) by the sum of total stockholders' equity adjusted to exclude goodwill as of period end. Leverage excludes U.S. Treasury repurchase agreements.
7.Economic return on tangible common equity represents the sum of the change in tangible net book value per common share and dividends declared per share of common stock during the period over beginning tangible net book value per common share.
30


Economic Interest Income and Asset Yields
The following table summarizes our economic interest income (a non-GAAP measure) for the three months ended March 31, 20202021 and 2019,2020, which includes the combination of interest income (a GAAP measure) on our holdings reported as investment securities on our consolidated balance sheets, adjusted to exclude estimated "catch-up" premium amortization adjustments for the cumulative effect from prior reporting periods of changes in our CPR forecast, and implied interest income on our TBA securities (dollars in millions):
  Three Months Ended March 31,
  2020 2019
  Amount Yield Amount Yield
Interest income:        
Cash/coupon interest income $875
 3.68 % $847
 3.87 %
Net premium amortization (384) (1.67)% (142) (0.73)%
Interest income (GAAP measure) 491
 2.01 % 705
 3.14 %
Estimated "catch-up" premium amortization cost (benefit) due to change in CPR forecast 243
 0.99 % 39
 0.17 %
Interest income, excluding "catch-up" premium amortization 734
 3.00 % 744
 3.31 %
TBA dollar roll income - implied interest income 1,2
 48
 2.54 % 71
 3.55 %
Economic interest income, excluding "catch-up" amortization (non-GAAP measure) 3
 $782
 2.97 % $815
 3.33 %
         
Weighted average actual portfolio CPR for investment securities held during the period 12.2%   6.3%  
Weighted average projected CPR for the remaining life of investment securities held as of period end 14.5%   10.5%  
Average 30-year fixed rate mortgage rate as of period end 4
 3.50%   4.06%  
10-year U.S. Treasury rate as of period end 0.67%   2.41%  


Three Months Ended March 31,
20212020
AmountYieldAmountYield
Interest income:
Cash/coupon interest income$481 3.40 %$875 3.68 %
Net premium amortization benefit (cost)76 0.38 %(384)(1.67)%
Interest income (GAAP measure)557 3.78 %491 2.01 %
Estimated "catch-up" premium amortization cost (benefit) due to change in CPR forecast(213)(1.45)%243 0.99 %
Interest income, excluding "catch-up" premium amortization344 2.33 %734 3.00 %
TBA dollar roll income - implied interest income 1,2
116 1.44 %48 2.54 %
Economic interest income, excluding "catch-up" amortization (non-GAAP measure) 3
$460 2.02 %$782 2.97 %
Weighted average actual portfolio CPR for investment securities held during the period24.6 %12.2 %
Weighted average projected CPR for the remaining life of investment securities held as of period end11.3 %14.5 %
Average 30-year fixed rate mortgage rate as of period end 4
3.17 %3.50 %
10-year U.S. Treasury rate as of period end1.74 %0.67 %
  ________________________________
1.Reported in gain (loss) on derivatives instruments and other securities, net in the accompanying consolidated statements of operations.
2.
1.Reported in gain (loss) on derivatives instruments and other securities, net in the accompanying consolidated statements of operations.
2.Implied interest income from TBA dollar roll transactions is computed as the sum of (i) TBA dollar roll income and (ii) estimated TBA implied funding cost (see Economic Interest Expense and Aggregate Cost of Funds below). TBA dollar roll income represents the price differential, or "price drop," between the TBA price for current month settlement versus the TBA price for forward month settlement and is the economic equivalent to interest income on the underlying Agency securities, less an implied funding cost, over the forward settlement period. Amount is net of TBAs used for hedging purposes. Amount excludes TBA mark-to-market adjustments.
3.The combined asset yield is calculated on a weighted average basis based on our average investment and TBA balances outstanding during the period and their respective yields.
4.Source: Freddie Mac Primary Fixed Mortgage Rate Mortgage Market Survey
3.The combined asset yield is calculated on a weighted average basis based on our average investment and TBA balances outstanding during the period and their respective yields.
4.Source: Freddie Mac Primary Fixed Mortgage Rate Mortgage Market Survey
The principal elements impacting our economic interest income are the size of our average investment portfolio and the yield (actual and implied) on our securities. The following table includes a summary of the estimated impact of each of these elements on our economic interest income for the three months ended March 31, 20202021 compared to the prior year period (in millions):
Impact of Changes in the Principal Elements Impacting Economic Interest IncomeImpact of Changes in the Principal Elements Impacting Economic Interest IncomeImpact of Changes in the Principal Elements Impacting Economic Interest Income
Three Months Ended March 31, 2020 vs. March 31, 2019
Three Months Ended March 31, 2021 vs. March 31, 2020Three Months Ended March 31, 2021 vs. March 31, 2020
   Due to Change in AverageDue to Change in Average
 
Total Increase /
(Decrease)
 
Portfolio
Size
 
Asset
Yield
Total Increase /
(Decrease)
Portfolio
Size
Asset
Yield
Three months ended:      Three months ended:
Interest Income (GAAP measure) $(215) $62
 $(277)Interest Income (GAAP measure)$66 $(195)$261 
Estimated "catch-up" premium amortization due to change in CPR forecast 204
 
 204
Estimated "catch-up" premium amortization due to change in CPR forecast(456)— (456)
Interest income, excluding "catch-up" premium amortization (11) 62
 (73)Interest income, excluding "catch-up" premium amortization(390)(195)(195)
TBA dollar roll income - implied interest income (24) (5) (19)TBA dollar roll income - implied interest income68 156 (88)
Economic interest income, excluding "catch-up" amortization (non-GAAP measure) $(35) $57
 $(92)Economic interest income, excluding "catch-up" amortization (non-GAAP measure)$(322)$(39)$(283)
Our average investment portfolio, inclusive of TBAs increased 8% (at cost), decreased 14% for the three months ended March 31, 2020,2021, compared to the prior year period, largely due to lower operating leverage and a larger capital base fromdecline in our total stockholders' equity capital raises.outstanding as a result of common stock repurchases. The decrease in the average yield on our average asset yieldinvestment portfolio of 95 basis points, compared to the prior year period, was largely due to the combination of changes in asset composition and higher premium amortization cost resulting from faster prepayment expectations.lower prevailing yields on new asset purchases.
31


Leverage  
Our primary measure of leverage is our tangible net book value "at risk" leverage ratio, which is measured as the sum of our repurchase agreements and other debt used to fund our investment securities and net TBA position (at cost) (together referred to as "mortgage borrowings") and our net receivable/payable for unsettled investment securities, divided by our total stockholders' equity adjusted to exclude goodwill and other intangible assets.goodwill.
We include our net TBA position in our measure of leverage because a forward contract to acquire Agency RMBS in the TBA market carries similar risks to Agency RMBS purchased in the cash market and funded with on-balance sheet liabilities. Similarly, a TBA contract for the forward sale of Agency securities has substantially the same effect as selling the underlying Agency RMBS and reducing our on-balance sheet funding commitments. (Refer to Liquidity and Capital Resources for further discussion of TBA securities and dollar roll transactions). Repurchase agreements used to fund short-term investments in U.S. Treasury securities ("U.S. Treasury repo") are excluded from our measure of leverage due to the temporary and highly liquid nature of these investments. The following table presents a summary of our leverage ratios for the periods listed (dollars in millions):
Repurchase Agreements
and Other Debt 1
Net TBA Position
Long/(Short)
2
Average Tangible Net Book Value
"At Risk" Leverage during the Period 3
Tangible Net Book Value "At Risk" Leverage
as of
Period End 4
Quarter EndedQuarter EndedAverage Daily
Amount
Maximum
Daily Amount
Ending
Amount
Average Daily
Amount
Ending
Amount
March 31, 2021March 31, 2021$54,602 $57,153 $55,221 $32,022 $25,355 8.0:17.7:1
December 31, 2020December 31, 2020$53,645 $55,249 $52,543 $33,753 $31,204 8.4:18.5:1
March 31, 2020March 31, 2020$93,538 $104,773 $63,241 $7,487 $20,648 9.9:19.4:1
 
Repurchase Agreements
and Other Debt 1
 
Net TBA Position
Long/(Short)
2 
 
Average Tangible Net Book Value
"At Risk" Leverage during the Period 3
 
Tangible Net Book Value "At Risk" Leverage
as of
Period End 4
Quarter Ended 
Average Daily
Amount
 
Maximum
Daily Amount
 
Ending
Amount
 
Average Daily
Amount
 
Ending
Amount
 
March 31, 2020 $93,538
 $104,773
 $63,241
 $7,487
 $20,648
 9.9:1 9.4:1
December 31, 2019 $88,677
 $92,672
 $89,313
 $7,038
 $7,404
 9.5:1 9.4:1
March 31, 2019 $82,070
 $87,877
 $86,590
 $8,002
 $6,885
 9.3:1 9.4:1

1.Other debt includes debt of consolidated VIEs. Amounts exclude U.S. Treasury repo agreements.
2.Daily average and ending net TBA position outstanding measured at cost.
3.Average tangible net book value "at risk" leverage during the period represents the sum of our daily weighted average repurchase agreements and other debt used to fund acquisitions of investment securities and net TBA position outstanding divided by the sum of our average month-ended stockholders' equity, adjusted to exclude goodwill.

1.Other debt includes debt of consolidated VIEs. Amounts exclude U.S. Treasury repo agreements.

2.Daily average and ending net TBA position outstanding measured at cost.
4.Tangible net book value "at risk" leverage as of period end represents the sum of our repurchase agreements and other debt used to fund acquisitions of investments securities, net TBA position (at cost) and net receivable/payable for unsettled investment securities outstanding as of period end divided by total stockholders' equity, adjusted to exclude goodwill as of period end.
3.Average tangible net book value "at risk" leverage during the period represents the sum of our daily weighted average repurchase agreements and other debt used to fund acquisitions of investment securities and net TBA position outstanding divided by the sum of our average month-ended stockholders' equity, adjusted to exclude goodwill.
4.Tangible net book value "at risk" leverage as of period end represents the sum of our repurchase agreements and other debt used to fund acquisitions of investments securities, net TBA position (at cost) and net receivable/payable for unsettled investment securities outstanding as of period end divided by total stockholders' equity, adjusted to exclude goodwill as of period end.
Economic Interest Expense and Aggregate Cost of Funds 
The following table summarizes our economic interest expense and aggregate cost of funds (non-GAAP measures) for the three months ended March 31, 20202021 and 20192020 (dollars in millions), which includes the combination of interest expense on Agency repurchase agreements and other debt (GAAP measure), implied interest expense onfinancing cost (benefit) of our TBA securities and interest rate swap periodic interest cost (income) cost::
 Three Months Ended March 31,Three Months Ended March 31,
 2020 201920212020
Economic Interest Expense and Aggregate Cost of Funds 1
 Amount Cost of Funds Amount Cost of Funds
Economic Interest Expense and Aggregate Cost of Funds 1
AmountCost of FundsAmountCost of Funds
Repurchase agreement and other debt - interest expense (GAAP measure) $426
 1.80 % $541
 2.64 %Repurchase agreement and other debt - interest expense (GAAP measure)$29 0.21 %$426 1.80 %
TBA dollar roll income - implied interest expense 2,3
 32
 1.67 % 52
 2.60 %
Economic interest expense - before interest rate swap periodic (income) costs, net 4
 458
 1.79 % 593
 2.64 %
Interest rate swap periodic interest (income) cost, net 2,5
 (31) (0.12)% (83) (0.37)%
TBA dollar roll income - implied interest expense (benefit) 2,3
TBA dollar roll income - implied interest expense (benefit) 2,3
(38)(0.48)%32 1.67 %
Economic interest expense - before interest rate swap periodic cost (income), net 4
Economic interest expense - before interest rate swap periodic cost (income), net 4
(9)(0.04)%458 1.79 %
Interest rate swap periodic interest cost (income), net 2,5
Interest rate swap periodic interest cost (income), net 2,5
12 0.06 %(31)(0.12)%
Total economic interest expense (non-GAAP measure) $427
 1.67 % $510
 2.27 %Total economic interest expense (non-GAAP measure)$0.02 %$427 1.67 %
 ________________________________
1.Amounts exclude interest rate swap termination fees and variation margin settlements paid or received, forward starting swaps and the impact of other supplemental hedges, such as swaptions and U.S. Treasury positions.
2.Reported in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income.
3.The implied funding cost of TBA dollar roll transactions is determined using the price differential, or "price drop," between the TBA price for current month settlement versus the TBA price for forward month settlement and market based assumptions regarding the "cheapest-to-deliver" collateral that can be delivered to satisfy the TBA contract, such as the anticipated collateral’s weighted average coupon, weighted average maturity and projected 1-month CPR.  The average implied funding cost for all TBA transactions is weighted based on our daily average TBA balance outstanding for the period.
4.The combined cost of funds for total mortgage borrowings outstanding, before interest rate swap costs, is calculated on a weighted average basis based on average repo, other debt and TBA balances outstanding during the period and their respective cost of funds.
5.Interest rate swap periodic interest (income) cost is measured as a percent of average mortgage borrowings outstanding for the period.
1.Amounts exclude interest rate swap termination fees and variation margin settlements paid or received, forward starting swaps and the impact of other supplemental hedges, such as swaptions and U.S. Treasury positions.
2.Reported in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income.
3.The implied funding cost (benefit) of TBA dollar roll transactions is determined using the price differential, or "price drop," between the TBA price for current month settlement versus the TBA price for forward month settlement and market based assumptions regarding the "cheapest-to-deliver" collateral that can be delivered to satisfy the TBA contract, such as the anticipated collateral’s weighted average coupon, weighted average maturity and projected 1-month CPR. The average implied funding cost (benefit) for all TBA transactions is weighted based on our daily average TBA balance outstanding for the period.
4.The combined cost of funds for total mortgage borrowings outstanding, before interest rate swap costs, is calculated on a weighted average basis based on average repo, other debt and TBA balances outstanding during the period and their respective cost of funds.
5.Interest rate swap periodic interest (income) cost is measured as a percent of average mortgage borrowings outstanding for the period.

The principal elements impacting our economic interest expense are (i) the size of our average mortgage borrowings and interest rate swap portfolio outstanding during the period, (ii) the average interest rate (actual and implied) on our mortgage borrowings and (iii) the average net interest rate paid/received on our interest rate swaps. The following table includes a
32


summary of the estimated impact of these elements on our economic interest expense for the three months ended March 31, 20202021 compared to the prior year period (in millions):

Impact of Changes in the Principal Elements of Economic Interest ExpenseImpact of Changes in the Principal Elements of Economic Interest Expense
Three Months Ended March 31, 2021 vs. March 31, 2020Three Months Ended March 31, 2021 vs. March 31, 2020
Due to Change in Average
Total Increase / (Decrease)Borrowing / Swap BalanceBorrowing / Swap Rate
Impact of Changes in the Principal Elements of Economic Interest Expense
Three Months Ended March 31, 2020 vs. March 31, 2019
Three months ended:Three months ended:
Repurchase agreements and other debt interest expenseRepurchase agreements and other debt interest expense$(397)$(177)$(220)
TBA dollar roll income - implied interest benefit/expenseTBA dollar roll income - implied interest benefit/expense(70)103 (173)
Interest rate swap periodic interest expense/benefitInterest rate swap periodic interest expense/benefit43 11 32 
Total change in economic interest expenseTotal change in economic interest expense$(424)$(63)$(361)
   Due to Change in Average
 Total Increase / (Decrease) Borrowing / Swap Balance Borrowing / Swap Rate
Repurchase agreements and other debt interest expense $(114) $73
 $(187)
TBA dollar roll income - implied interest expense (20) (3) (17)
Interest rate swap periodic interest income/cost 52
 (48) 100
Total change in economic interest expense $(82) $22
 $(104)
Our average mortgage borrowings, inclusive of TBAs, increased by 12%decreased 14% for the three months ended March 31, 20202021, compared to the prior year period, largelyconsistent with the decline in our average investment portfolio due to lower operating leverage and a decline in our total stockholders' equity outstanding as a functionresult of our higher asset base. common stock repurchases.
The decreasedecline in the average interest rate (actual and implied) on our mortgage borrowings for the three months ended March 31, 2021 was largely due to decreasesthe combination of very low financing rates available in the Federal Funds rate. Agency repo market and even lower implied financing rates available in the TBA dollar roll market, as repo and dollar roll funding levels benefited from favorable technical supply and demand factors.
The decreaseincrease in our interest rate swap periodic interest incomecost for the three months ended March 31, 2021 was primarily due to a decline in the average floating rate received on our interest rate swaps, as the receive leg of our pay-fixedconsistent with lower short-term interest rate swaps reset to lower prevailing rates, which was partiallypartly offset by a decline in ourthe average pay-rate. The increase infixed rate paid on our average interest rate swap position outstanding was due to hedge recomposition.swaps. The following table presents a summary of the ratio of our average interest rates swaps outstanding, excluding forward starting swaps, to our average mortgage borrowings and the weighted average pay-fixed / receive-floating rates on our interest rate swaps for the three months ended March 31, 20202021 and 20192020 (dollars in millions):


 Three Months Ended March 31,
Three Months Ended
March 31,
Average Ratio of Interest Rate Swaps (Excluding Forward Starting Swaps) to Mortgage Borrowings Outstanding 2020 2019Average Ratio of Interest Rate Swaps (Excluding Forward Starting Swaps) to Mortgage Borrowings Outstanding20212020
Average Agency repo and other debt outstanding $93,538
 $82,070
Average Agency repo and other debt outstanding$54,602 $93,538 
Average net TBA portfolio outstanding - at cost $7,487
 $8,002
Average net TBA portfolio outstanding - at cost$32,022 $7,487 
Average mortgage borrowings outstanding $101,025
 $90,072
Average mortgage borrowings outstanding$86,624 $101,025 
Average notional amount of interest rate swaps outstanding (excluding forward starting swaps) $71,659
 $45,158
Average notional amount of interest rate swaps outstanding (excluding forward starting swaps)$45,211 $71,659 
Ratio of average interest rate swaps to mortgage borrowings outstanding 71 % 50 %Ratio of average interest rate swaps to mortgage borrowings outstanding52 %71 %
    
Average interest rate swap pay-fixed rate (excluding forward starting swaps) 1.22 % 1.97 %Average interest rate swap pay-fixed rate (excluding forward starting swaps)0.16 %1.22 %
Average interest rate swap receive-floating rate (1.39)% (2.72)%Average interest rate swap receive-floating rate(0.05)%(1.39)%
Average interest rate swap net pay/(receive) rate (0.17)% (0.75)%Average interest rate swap net pay/(receive) rate0.11 %(0.17)%
For the three months ended March 31, 20202021 and 2019,2020, we had an average forward starting swap balance of $1.5$0.3 billion and $5.9$1.5 billion, respectively. Forward starting interest rate swaps do not impact our economic interest expense and aggregate cost of funds until they commence accruing net interest settlements on their forward start dates. Including forward starting swaps, our average ratio of interest rate swaps outstanding to our average mortgage borrowings for the three months ended March 31, 2021 and 2020 was 53% and 2019 was 72% and 57%, respectively.
Net Interest Spread
The following table presents a summary of our net interest spread (including the impact of TBA dollar roll income, interest rate swaps and excluding "catch-up" premium amortization) for the three months ended March 31, 20202021 and 2019:2020:
33


 Three Months Ended March 31,
Three Months Ended
March 31,
Investment and TBA Securities - Net Interest Spread 2020 2019Investment and TBA Securities - Net Interest Spread20212020
Average asset yield, excluding "catch-up" premium amortization 2.97 % 3.33 %Average asset yield, excluding "catch-up" premium amortization2.02 %2.97 %
Average aggregate cost of funds (1.67)% (2.27)%Average aggregate cost of funds(0.02)%(1.67)%
Average net interest spread, excluding "catch-up" premium amortization 1.30 % 1.06 %Average net interest spread, excluding "catch-up" premium amortization2.00 %1.30 %


Net Spread and Dollar Roll Income
The following table presents a summary of our net spread and dollar roll income, excluding estimated "catch-up" premium amortization, per diluted common share (a non-GAAP financial measure) and a reconciliation to our net interest income (the most comparable GAAP financial measure) for the three months ended March 31, 20202021 and 20192020 (dollars in millions):
 Three Months Ended March 31,
Three Months Ended
March 31,
 2020 201920212020
Net interest income (GAAP measure) $65
 $164
Net interest income (GAAP measure)$528 $65 
TBA dollar roll income, net 1
 16
 19
TBA dollar roll income, net 1
154 16 
Interest rate swap periodic interest income (cost), net 1
 31
 83
Interest rate swap periodic (cost) income, net 1
Interest rate swap periodic (cost) income, net 1
(12)31 
Other interest and dividend income 1
 2
 3
Other interest and dividend income 1
— 
Adjusted net interest and dollar roll income 114
 269
Adjusted net interest and dollar roll income670 114 
Operating expense (23) (19)Operating expense(24)(23)
Net spread and dollar roll income 91
 250
Net spread and dollar roll income646 91 
Dividend on preferred stock 21
 10
Dividend on preferred stock25 21 
Net spread and dollar roll income available to common stockholders (non-GAAP measure) 70
 240
Net spread and dollar roll income available to common stockholders (non-GAAP measure)621 70 
Estimated "catch-up" premium amortization cost due to change in CPR forecast 243
 39
Estimated "catch-up" premium amortization cost (benefit) due to change in CPR forecastEstimated "catch-up" premium amortization cost (benefit) due to change in CPR forecast(213)243 
Net spread and dollar roll income, excluding "catch-up" premium amortization, available to common stockholders (non-GAAP measure) $313
 $279
Net spread and dollar roll income, excluding "catch-up" premium amortization, available to common stockholders (non-GAAP measure)$408 $313 
    
Weighted average number of common shares outstanding - basic 548.0
 536.7
Weighted average number of common shares outstanding - basic533.7 548.0 
Weighted average number of common shares outstanding - diluted 549.2
 537.2
Weighted average number of common shares outstanding - diluted535.6 549.2 
Net spread and dollar roll income per common share - basic $0.13
 $0.45
Net spread and dollar roll income per common share - basic$1.16 $0.13 
Net spread and dollar roll income per common share - diluted $0.13
 $0.45
Net spread and dollar roll income per common share - diluted$1.16 $0.13 
Net spread and dollar roll income, excluding "catch-up" premium amortization, per common share - basic $0.57
 $0.52
Net spread and dollar roll income, excluding "catch-up" premium amortization, per common share - basic$0.76 $0.57 
Net spread and dollar roll income, excluding "catch-up" premium amortization, per common share - diluted $0.57
 $0.52
Net spread and dollar roll income, excluding "catch-up" premium amortization, per common share - diluted$0.76 $0.57 

1.Reported in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income
1.Reported in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income
Gain (Loss) on Investment Securities, Net
The following table is a summary of our net gain (loss) on investment securities for the three months ended March 31, 20202021 and 20192020 (in millions): 
Three Months Ended
March 31,
Gain (Loss) on Investment Securities, Net 1
20212020
Gain (loss) on sale of investment securities, net$(13)$494 
Unrealized gain (loss) on investment securities measured at fair value through net income, net 2
(955)197 
Unrealized gain (loss) on investment securities measured at fair value through other comprehensive income, net(237)464 
Total gain (loss) on investment securities, net$(1,205)$1,155 

1.Amounts exclude gain (loss) on TBA securities, which are reported in gain (loss) on derivative instruments and other securities, net in our Consolidated Statements of Comprehensive Income.
2.Investment securities acquired after fiscal year 2016 are measured at fair value through net income (see Note 2 of our Consolidated Financial Statements in this Form 10-Q).
34
  Three Months Ended March 31,
Gain (Loss) on Investment Securities, Net 1
 2020 2019
Gain on sale of investment securities, net $494
 $60
Unrealized gain (loss) on investment securities measured at fair value through net income, net 2
 197
 1,060
Unrealized gain (loss) on investment securities measured at fair value through other comprehensive income, net 464
 400
Total gain (loss) on investment securities, net $1,155
 $1,520

1.Amounts exclude gain (loss) on TBA securities, which are reported in gain (loss) on derivative instruments and other securities, net in our Consolidated Statements of Comprehensive Income.
2.Investment securities acquired after fiscal year 2016 are measured at fair value through net income (see Note 3 of our Consolidated Financial Statements in this Form 10-Q).



Gain (Loss) on Derivative Instruments and Other Securities, Net  
The following table is a summary of our gain (loss) on derivative instruments and other securities, net for the three months ended March 31, 20202021 and 20192020 (in millions):
Three Months Ended
March 31,
 Three Months Ended March 31, 20212020
 2020 2019
Interest rate swap periodic interest income (cost), net $31
 $83
Interest rate swap periodic income (cost), netInterest rate swap periodic income (cost), net$(12)$31 
Realized gain (loss) on derivative instruments and other securities, net:    Realized gain (loss) on derivative instruments and other securities, net:
TBA securities - dollar roll income, net 16
 19
TBA securities - dollar roll income, net154 16 
TBA securities - mark-to-market net gain (loss) 129
 65
TBA securities - mark-to-market net gain (loss)(228)129 
Payer swaptions (22) (10)Payer swaptions(24)(22)
U.S. Treasury securities - long position 60
 
U.S. Treasury securities - long position(10)60 
U.S. Treasury securities - short position (634) (66)U.S. Treasury securities - short position(634)
U.S. Treasury futures - short position (21) (45)U.S. Treasury futures - short position27 (21)
Interest rate swaps - termination fees and variation margin settlements, net (2,806) (699)Interest rate swaps - termination fees and variation margin settlements, net1,090 (2,806)
Other 27
 (6)Other— 27 
Total realized gain (loss) on derivative instruments and other securities, net (3,251) (742)Total realized gain (loss) on derivative instruments and other securities, net1,010 (3,251)
Unrealized gain (loss) on derivative instruments and other securities, net:    Unrealized gain (loss) on derivative instruments and other securities, net:
TBA securities - mark-to-market net gain (loss) 548
 (1)TBA securities - mark-to-market net gain (loss)(852)548 
Interest rate swaps (20) 20
Interest rate swaps46 (20)
Payer swaptions (112) (17)Payer swaptions411 (112)
U.S. Treasury securities - long position 37
 
U.S. Treasury securities - long position— 37 
U.S. Treasury securities - short position (303) (359)U.S. Treasury securities - short position806 (303)
U.S. Treasury futures - short position (83) 14
U.S. Treasury futures - short position34 (83)
Other (1) 2
Other(4)(1)
Total unrealized gain (loss) on derivative instruments and other securities, net 66
 (341)Total unrealized gain (loss) on derivative instruments and other securities, net441 66 
Total gain (loss) on derivative instruments and other securities, net $(3,154) $(1,000)Total gain (loss) on derivative instruments and other securities, net$1,439 $(3,154)
For further details regarding our use of derivative instruments and related activity refer to Notes 32 and 65 of our Consolidated Financial Statements in this Form 10-Q.
Estimated Taxable Income (Loss)
For the three months ended March 31, 20202021 and 2019,2020, we had estimated taxable income (loss) available (attributable) to common stockholders of $(164) million and $111 million, respectively, or $(0.31) and $196 million (or $0.20 and $0.36 per diluted common share),share, respectively. Income determined under GAAP differs from income determined under U.S. federal income tax rules because of both temporary and permanent differences in income and expense recognition. The primary differences are (i) unrealized gains and losses on investment securities and derivative instruments marked-to-market in current income for GAAP purposes, but excluded from taxable income until realized, settled or amortized over the instrument's original term, (ii) timing differences, both temporary and potentially permanent, in the recognition of certain realized gains and losses and (iii) temporary differences related to the amortization of premiums and discounts on investments. Furthermore, our estimated taxable income is subject to potential adjustments up to the time of filing our appropriate tax returns, which occurs after the end of our fiscal year. The following is a reconciliation of our GAAP net income to our estimated taxable income for the three months ended March 31, 20202021 and 20192020 (dollars in millions, except per share amounts):

35



Three Months EndedMarch 31,
20212020
Net income/(loss)$975 $(2,421)
Book to tax differences:
Premium amortization, net(269)237 
Realized gain/loss, net(1,494)2,555 
Net capital loss/(utilization of net capital loss carryforward)89 32 
Unrealized (gain)/loss, net545 (263)
Other(10)(8)
Total book to tax differences(1,139)2,553 
REIT taxable income (loss)(164)132 
REIT taxable income attributed to preferred stock— 21 
REIT taxable income (loss), attributed to common stock$(164)$111 
Weighted average common shares outstanding - basic533.7 548.0 
Weighted average common shares outstanding - diluted533.7 549.2 
REIT taxable income (loss) per common share - basic$(0.31)$0.20 
REIT taxable income (loss) per common share - diluted$(0.31)$0.20 
Beginning net capital loss carryforward$— $394 
Increase (decrease) in net capital loss carryforward89 32 
Ending net capital loss carryforward$89 $426 
Ending net capital loss carryforward per common share$0.17 $0.75 
36
  Three Months Ended March 31,
  2020 2019
Net income (loss) $(2,421) $265
Estimated book to tax differences:    
Premium amortization, net 237
 54
Realized gain/loss, net 2,555
 627
Net capital loss/(utilization of net capital loss carryforward) 32
 (12)
Unrealized (gain)/loss, net (263) (719)
Other (8) (9)
Total book to tax differences 2,553
 (59)
Estimated REIT taxable income 132
 206
Dividends on preferred stock 21
 10
Estimated REIT taxable income available to common stockholders $111
 $196
Weighted average number of common shares outstanding - basic 548.0
 536.7
Weighted average number of common shares outstanding - diluted 549.2
 537.2
Estimated REIT taxable income per common share - basic $0.20
 $0.37
Estimated REIT taxable income per common share - diluted $0.20
 $0.36
     
Beginning cumulative non-deductible net capital loss $394
 $182
Increase (decrease) in net capital loss carryforward 32
 (12)
Ending cumulative non-deductible net capital loss $426
 $170
Ending cumulative non-deductible net capital loss per common share $0.75
 $0.32




LIQUIDITY AND CAPITAL RESOURCES
Our business is dependent on our ability to maintain adequate levels of liquidity and capital resources to fund day-to-day operations, fulfill collateral requirements under our funding and derivative agreements, and to satisfy our dividend distribution requirement of at least 90% of our taxable income to maintain our qualification as a REIT. Our primary sources of liquidity are unencumbered cash and securities, borrowings available under repurchase agreements, TBA dollar roll financing and monthly receipts of principal and interest payments, asset sales and equity offerings.payments. We may also utilize TBA dollar roll transactionsconduct asset sales, change our asset or funding mix, issue equity or undertake other capital enhancing actions to finance Agency RMBS investments.maintain adequate levels of liquidity and capital resources.
We believe that we have sufficient liquidity and capital resources available to meet our obligations and execute our business strategy. In assessing our liquidity, we consider a number of factors, including our current leverage, haircut and minimum collateral levels, access to capital markets, overall market conditions, and the sensitivity of our tangible net book value over a range of scenarios. However, these and other factors impacting our liquidity are subject to numerous risks and uncertainties, including as described in the Quantitative and Qualitative Disclosures of Market Risks and Risk Factors sections of our Annual Report on Form 10-K for the year ended December 31, 2019, as amended (our "2019 Form 10-K") and this Form 10-Q.
Leverage and Financing Sources
Our leverage will vary depending on market conditions and our assessment of relative risks and returns, but we generally would expect our leverage to be between six and twelve times the amount of our tangible stockholders' equity, measured as the sum of our total mortgage borrowings and net payable / (receivable) for unsettled investment securities, divided by the sum of our total stockholders' equity adjusted to exclude goodwill. As of March 31, 2020, ourOur tangible net book value "at risk" leverage ratio was 9.4x7.7x and despite the decline in our tangible net book value during the first quarter, was unchanged from8.5x as of March 31, 2021 and December 31, 2019.2020, respectively. The following table includes a summary of our mortgage borrowings outstanding as of March 31, 20202021 and December 31, 20192020 (dollars in millions). For additional details of our mortgage borrowings refer to Notes 3,2, 4 and 5 and 6 to our Consolidated Financial Statements in this Form 10-Q.
 March 31, 2020 December 31, 2019March 31, 2021December 31, 2020
Mortgage Borrowings Amount % Amount %Mortgage BorrowingsAmount%Amount%
Repurchase agreements 1
 $63,027
 75% $89,085
 92%
Repurchase agreements 1
$55,056 68 %$52,366 63 %
Debt of consolidated variable interest entities, at fair value 214
 % 228
 %Debt of consolidated variable interest entities, at fair value165 — %177 — %
Total debt 63,241
 75% 89,313
 92%Total debt55,221 69 %52,543 63 %
Net TBA position, at cost 20,648
 25% 7,404
 8%Net TBA position, at cost25,355 31 %31,204 37 %
Total mortgage borrowings $83,889
 100% $96,717
 100%Total mortgage borrowings$80,576 100 %$83,747 100 %

1.Amount excludes $3,513 million and $97 million of repurchase agreements used to fund purchases of U.S. Treasury securities as of March 31, 2020 and December 31, 2019, respectively.
Repurchase1.As of March 31, 2021 and December 31, 2020, 44% and 46%, respectively, of our repurchase agreement funding was through the GCF Repo service.
Our primary financing sources are collateralized borrowings structured as repurchase agreements. We enter into repurchase agreements, or "repo," through bi-lateral arrangements involvewith financial institutions and independent dealers. We also enter into third-party repurchase agreements through our wholly-owned registered broker-dealer subsidiary, Bethesda Securities, LLC, such as tri-party repo offered through the saleFICC's GCF Repo service. We manage our repurchase agreement funding position through a variety of methods, including diversification of counterparties, maintaining a staggered maturity profile and utilization of interest rate hedging strategies. We also use TBA dollar roll transactions as a simultaneous agreement to repurchase the transferred assets at a future date and are accounted for as collateralizedmeans of synthetically financing transactions.  We maintain a beneficial interest in the specific securities pledged during the term of each repurchase arrangement and we receive the related principal and interest payments.  Agency RMBS.
The terms and conditions of secured borrowingsour repurchase agreements are negotiateddetermined on a transaction-by-transaction basis when each such borrowing is initiated or renewed.renewed and, in the case of GCF Repo, by the variable margin requirements calculated by the FICC, which acts as the central counterparty. The amount borrowed is generally equal to the fair value of the securities pledged, as determined by the lending counterparty, less an agreed-upon discount, referred to as a "haircut."haircut," This haircutwhich reflects the underlying risk of the specific collateral and protects ourthe counterparty against a change in its value, but conversely subjects us to counterparty credit risk and limits the amount we can borrow against our investment securities.value. Interest rates are generally fixed based on prevailing rates corresponding to the termsterm of the borrowings. Interest may be paid monthly or at the termination of a borrowing at which time we may enter into a new borrowing at prevailing haircuts and rates with the same lending counterparty or repay that counterparty and negotiate financing with a different lending counterparty.borrowing. None of our repo counterparties are obligated to renew or otherwise enter into new borrowings at the conclusion of our existing borrowings.
The use of TBA dollar roll transactions increases our funding diversification, expands our available pool of assets, and increases our overall liquidity position, as TBA contracts typically have lower implied haircuts relative to Agency MBSRMBS pools held on balance sheet and funded with repo financing. However, if it were to become uneconomical to roll our TBA contracts into future months we couldit may be requirednecessary to take physical delivery of the underlying securities and fund those assets with cash or other financing sources, which could reduce our liquidity position, as the liquidity benefit of TBA contracts wouldposition.
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Collateral Requirements and Unencumbered Assets
Amounts available to be eliminated. The collateral requirementsborrowed under our TBA contractsrepurchase agreements are governed bydependent upon prevailing interest rates, the Mortgage-Backed Securities Division ("MBSD")lender’s "haircut" requirements and collateral value. Each of these elements may fluctuate with changes in interest rates, credit quality and liquidity conditions within the FICC and by our brokerage agreements, which may establish margin levels in excess of the MBSD.


financial markets. To help manage the adverse impact of interest rate changes on the value of our investment portfolio as well as our cash flows,borrowings, we utilize an interest rate risk management strategy under which weinvolving the use of derivative financial instruments. In particular, we attempt to mitigate the risk of the cost of our variable rateshort-term funding liabilities increasing at a faster rate than the earnings of our long-term fixed rate assets during a period of rising interest rates.
The collateral requirements, or haircut levels, under our repo agreements are typically determined on an individual transaction basis or by the prevailing requirements established by the FICC for GCF tri-party repo. Consequently, haircut levels and minimum margin requirements can change over time and may increase during periods of elevated market volatility. If the fair value of our collateral declines, our counterparties will typically require that we post additional collateral to re-establish the agreed-upon collateral levels, referred to as "margin calls." Similarly, if the estimated fair value of our investment securities increases, we may request that counterparties release collateral back to us. Our counterparties typically have the sole discretion to determine the value of pledged collateral but are required to act in good faith in making determinations of value. Our agreements generally provide that in the event of a margin call, collateral must be posted on the same business day, subject to notice requirements. As of March 31, 2021, we had met all our margin requirements.
The value of Agency RMBS collateral is impacted by market factors and is reduced by monthly principal pay-downs on the underlying mortgage pools. Fannie Mae and Freddie Mac publish monthly security pay-down factors for their mortgage pools on the fifth day after month-end, but do not remit payment to security holders until generally the 25th day after month-end. Bi-lateral repo counterparties assess margin to account for the reduction in value of Agency collateral when factors are released. The FICC assesses margin on the last day of each month, prior to the factor release date, based on its internally projected pay-down rates (referred to as the "blackout period exposure adjustment" or "blackout margin"). On the factor release date, the blackout margin is released and collateralization requirements are adjusted to actual factor data. Due to the timing difference between associated margin calls and our receipt of principal pay-downs, our liquidity is temporarily reduced each month for principal repayments. We attempt to manage the liquidity risk associated with principal pay-downs by monitoring conditions impacting prepayment rates and through asset selection. As of March 31, 2021, our portfolio largely consisted of lower coupon 30 and 15-year TBA securities, which are not subject to monthly principal pay-downs, and higher coupon holdings concentrated in high quality, specified Agency RMBS pools, which have a lower risk of prepayment than similar coupon generic Agency RMBS.
Collateral requirements under our derivative agreements are subject to our counterparties' assessment of their maximum risk of loss associated with the derivative instrument measured over a certain period of time, referred to as the initial or minimum margin requirement. We are also subject to daily variation margin requirements based on changes in the value of the derivative instrument and/or collateral pledged. Daily variation margin requirements also entitle us to receive collateral if the value of amounts owed to us under the derivative agreement exceeds the minimum margin requirement. The collateral requirements under our TBA contracts are governed by the Mortgage-Backed Securities Division ("MBSD") of the FICC and, if applicable, by our third-party brokerage agreements, which may establish margin levels in excess of the MBSD. Collateral levels for interest rate derivative agreements are typically governed by the central clearing exchange and the associated futures commission merchants ("FCMs"), which may establish margin levels in excess of the clearing exchange. Collateral levels for interest rate derivative agreements not subject to central clearing are established by the counterparty financial institution.
Collateral Requirements and Unencumbered Assets
Amounts available to be borrowed under our repurchase agreements are dependent upon lender collateral requirements and the lender's determination of the fair value of the securities pledged as collateral, which fluctuates with changes in interest rates, credit quality and liquidity conditions within the investment banking, mortgage finance and real estate industries. In response to declines in the fair value of pledged securities due to changes in market conditions or the publishing of monthly security pay-down factors, lending counterparties typically require that we post additional securities as collateral, pay-down borrowings or fund cash margin accounts with the counterparties in order to re-establish the agreed-upon collateral requirements, referred to as "margin calls." Similarly, if the estimated fair value of our investment securities increases due to changes in interest rates or other factors, counterparties may release collateral back to us. Our derivative agreements also require that we maintain a minimum collateral balance regardless of the value of the derivative instrument based on our counterparties' assessment of risk specific to the derivative instrument and clearing exchange rules.
Collateral requirements under our repurchase and derivative agreements are dependent on our counterparties' determination of the fair value of securities pledged and the "haircut" levels they apply against the value of our securities. Haircuts under repo agreements are typically determined on an individual transaction basis and reflect our counterparties' assessment of the underlying risk associated with the specific collateral. Our derivative agreements also require that we maintain a minimum collateral balance regardless of the value of the derivative instrument based on our counterparties' assessment of risk specific to the derivative instrument and clearing exchange rules. Haircut levels and minimum margin requirements can change overtime and could be expected to increase during periods of elevated market volatility. We are also subject to daily variation margin requirements based on changes in the value of our collateral and, in the case of derivative agreements, changes in the value of the derivative instrument. Daily variation margin requirements under our interest rate derivative agreements also entitle us to receive collateral if the value of amounts owed to us under the derivative instrument exceeds a minimum margin requirement. Our agreements may provide that the valuations of securities securing our obligations under the agreement are to be obtained from a generally recognized source agreed to by both parties to the agreement. Other agreements provide that our counterparty has the sole discretion to determine the value of pledged collateral, but is required to act in good faith in making determinations of value. Our agreements generally provide that in the event of a margin call, collateral must be posted on the same business day, subject to notice requirements. As of March 31, 2020, we had met all our margin requirements.
The value of Agency RMBS is reduced by principal pay-downs on the mortgage pools underlying them. Fannie Mae and Freddie Mac publish monthly security pay-down factors for their mortgage pools on the fifth day after month-end and remit payment based on these factors generally on the 25th day after month-end. Counterparties to our bi-lateral repurchase agreements typically assess margin to account for these principal pay-downs when pool level principal payment data becomes available and prior to our receipt of the principal repayment. The FICC assesses margin based on its internally projected pay-down rates on the last day of each month (referred to as the "blackout period exposure adjustment" or "blackout margin"). On the fifth day of the month, the blackout margin is released and collateralization requirements are adjusted to the actual published factor data. Consequently, our liquidity is temporarily reduced each month until we receive payment of the pay-down amounts. We attempt to manage the liquidity risk associated with principal pay-downs by monitoring conditions impacting prepayment rates and through asset selection. As of March 31, 2020, given the current market conditions and elevated prepayment risk associated with historically low interest rates, our portfolio largely consisted of higher coupon specified pool securities, which have a lower risk of prepayment compared to generic Agency RMBS, and TBA securities, which do not expose us to margin calls due to prepayments.
Haircut levels and minimum margin requirements imposed by our counterparties reduce the amount of our unencumbered assets and limit the amount we can borrow against our investment securities. AsDuring the three months ended March 31, 2021, haircuts remained stable, and, as of March 31, 2020,2021, the weighted average haircut on our repurchase agreements was approximately 4.0%4.2% of the value of our collateral, inclusive of collateral funded through BES, compared to 4.4%4.6% as of December 31, 2019. During the first quarter, haircuts on our Agency RMBS collateral remained stable. Financing for less liquid, credit-oriented securities was significantly impacted by the dislocation in the financial markets in the first quarter; such assets were either not financeable through certain lenders, or haircuts and pricing for such assets increased substantially.2020.
To enhance ourmitigate the risk of future margins calls, we seek to maintain excess liquidity position during the first quarter, weby holding unencumbered liquid assets that can be used to satisfy collateral requirements, collateralize additional borrowings or sold lower coupon Agency RMBS securities funded by repurchase agreements and partially replaced them with TBA securities. We maintained our entire TBA position at our broker-dealer subsidiary,


BES, and we shifted a larger portion of our Agency repo funding to the FICC through BES, increasing it to 54% of our Agency repo funding, as of March 31, 2020, from 38% as of December 31, 2019. These actions reduced our average "haircut" level and lowered our aggregate margin requirement compared to our traditional bi-lateral repo agreements.for cash. As of March 31, 2020,2021, our unencumbered assets totaled 54%62% of our tangible net equity, unchanged fromcompared to 60% as of December 31, 2019, or $5.0 billion in the aggregate.December 31, 2020. The majority of our liquidity is held at AGNC, which included $3.5 billion of unencumbered cash and Agency RMBS and $0.3 billion of unencumbered CRT and non-agency securities as of March 31, 2020. Webut we also maintain capital and excess liquidity at BES forBethesda Securities to meet regulatory standards, satisfy counterparty and clearing organization expectations, and for risk management purposes, and to meet expectations of counterparties, its clearing bank and clearing organizations.purposes. As of March 31, 2020,2021, we had cash and unencumbered Agency RMBS and U.S. Treasury securities totaling $5.2 billion, or 48% of our tangible equity, which excludes unencumbered CRT securities, non-Agency securities and assets held at BES totaled approximately $1.2Bethesda Securities, compared to $5.4 billion after being temporarily reduced for “blackout margin” charges posted by BES at the endand 51%, respectively, as of the month.December 31, 2020.
38


Counterparty Risk
Collateral haircuts and minimum margin requirements imposed by counterparties subject us to the risk that the counterparty credit risk.does not return pledged assets to us as and when required. We attempt to manage this risk by monitoring our collateral positions and limiting our counterparties to registered clearinghouses and major financial institutions with acceptable credit ratings. We also diversify our funding across multiple counterparties and by region. As of March 31, 2020, we had master repurchase agreements with 47 financial institutions located throughout North America, Europe and Asia, including repo counterparties accessed through BES. BES' direct access to the General Collateral Finance Repo service offered by the FICC and other triparty and bi-lateral repo funding provides us greater depth and diversity of funding at favorable terms relative to traditional bilateral repurchase agreement funding. As of March 31, 2020, $35.4 billion of our repurchase agreement funding was sourced through BES.
The table below includes a summary of our Agency RMBS repurchase agreement funding by number of repo counterparties and counterparty region as of March 31, 2020.
  March 31, 2020
Counter-Party Region Number of Counter-Parties 
Percent of Repurchase Agreement Funding 1
North America:    
FICC 1 53%
Other 27 36%
Total North America 28 89%
Europe 14 9%
Asia 5 2%
Total 47 100%

1.Percent of repurchase agreement funding includes U.S. Treasury repurchase agreements.
As of March 31, 2020,2021, our maximum amount at risk (or the excessexcess/shortfall of the value of collateral pledgedpledged/received over our repurchase liabilities)agreement liabilities/reverse repurchase agreement receivables) with any of our repurchase agreement counterparties, excluding the FICC, was less than 6%2% of our tangible stockholders' equity, with our top five repo counterparties, excluding the FICC, representing less than 12%5% of our tangible stockholders' equity. As of March 31, 2020,2021, approximately 10%9% of our tangible stockholder's equity was at risk with the FICC. Excluding central clearing exchanges, as of March 31, 2020,2021, our amount at risk with any counterparty to our derivative agreements was less than 1% of our stockholders' equity.
Asset Sales and TBA Eligible Securities
Agency RMBS securities are among the most liquid fixed income securities, and the TBA market is the second most liquid market (after the U.S. Treasury market). The vitality of these markets enables us to sell assets under most market conditions to generate liquidity through direct sales or delivery into TBA contracts, subject to "good delivery" provisions promulgated by the Securities Industry and Financial Markets Association ("SIFMA"). As of March 31, 2020, approximately 93%Under certain market conditions, however, we may be unable to realize the full "pay-up" value of our fixed ratespecified pool securities, or premium relative to generic Agency RMBS portfolio was eligible for TBA delivery, although we will typically conduct outright salesRMBS. We attempt to manage this risk by maintaining a minimum level of specified securities when theythat trade at or near TBA values that in our estimation enhances our portfolio liquidity across a premium to generic securities due to their unique attributes.wide range of market conditions.
Equity Capital Markets
The equity capital markets serve as a source of capital to grow our business and to generatemeet potential liquidity to meetneeds of our business objectives.business. The availability of equity capital is dependent on market conditions in the equity capital markets and investor demand for our common and preferred stock. We will typically not issue common stock when the price of our common stock trades below our tangible net book value or issue preferred equity when its cost of capital exceeds acceptable hurdle rates of return on our equity. There can be no assurance however, that we will be able to raise additional equity capital at any particular time or on any particular


terms. Furthermore, when the trading price of our common stock is less than our estimate of our current tangible net book value per common share, among other conditions, we may repurchase shares of our common stock. Please refer to Notes 10 and 11 toNote 9 of our Consolidated Financial Statements in this Form 10-Q for further details regarding our recent equity capital transactions.

transactions and our stock repurchase plan.
OFF-BALANCE SHEET ARRANGEMENTS
As of March 31, 2020,2021, we did not maintain relationships with unconsolidated entities or financial partnerships, such as entities often referred to as structured finance, or special purpose or variable interest entities, established to facilitate off-balance sheet arrangements or other contractually narrow or limited purposes. Additionally, as of March 31, 2020,2021, we had not guaranteed obligations of unconsolidated entities or entered into a commitment or intent to provide funding to such entities.
FORWARD-LOOKING STATEMENTS
The statements contained in this Quarterly Report that are not historical facts, including estimates, projections, beliefs, expectations concerning conditions, events, or the outlook for our business, strategy, performance, operations or the markets or industries in which we operate, are forward-looking statements within the meaning of the Private Securities Litigation Reform Act. Forward-looking statements are typically identified by words such as “believe,” “plan,” “expect,” “anticipate,” “see,” “intend,” “outlook,” “potential,” “forecast,” “estimate,” “will,” “could,” “should,” “likely” and other similar, correlative or comparable words and expressions.
Forward looking statements are based on management’s assumptions, projections and beliefs as of the date of this Quarterly Report, but they involve a number of risks and uncertainties. Actual results may differ materially from those anticipated in forward-looking statements, as well as from historical performance. Factors that could cause actual results to vary from our forward-looking statements include, but are not limited to, the following:
the impact of the PandemicCOVID-19 pandemic and of measures taken in response to the PandemicCOVID-19 pandemic by various governmental authorities, businesses and other third parties;
actions by the federal, state, or local governments to stabilize the economy, the housing sector or financial markets;
changes in U.S. monetary policy or interest rates;rates, including Fed purchases of Agency RMBS;
fluctuations in the yield curve;
39


fluctuations in mortgage prepayment rates on the loans underlying our Agency RMBS;
the availability and terms of financing;
changes in the market value of our assets, including from changes in net interest spreads, and changes in market liquidity or depth;
the effectiveness of our risk mitigation strategies;
conditions in the market for Agency RMBS and other mortgage securities;
legislative or regulatory changes that affect our status as a REIT, our exemption from the Investment Company Act of 1940 or the mortgage markets in which we participate; and
other risks discussed under the heading “Risk Factors” herein and in our Annual Report on Form 10-K.
Forward-looking statements speak only as of the date made, and we do not assume any duty and do not undertake to update forward-looking statements. A further discussion of risks and uncertainties that could cause actual results to differ from any of our forward-looking statements is included in our most recent Annual Report on Form 10-K and this document under Item 1A. Risk Factors. We caution readers not to place undue reliance on our forward-looking statements.
Item 3. Quantitative and Qualitative Disclosures about Market Risk
Market risk is the exposure to loss resulting from changes in market factors such as interest rates, foreign currency exchange rates, commodity prices and equity prices. The primary market risks that we are exposed to are interest rate, prepayment, spread, liquidity, extension and credit risk.
Interest Rate Risk
We are subject to interest rate risk in connection with the fixed income nature of our assets and the short-term, variable rate nature of our financing obligations. Our operating results depend in large part on differences between the income earned on our assets and our cost of borrowing and hedging activities. The costs associated with our borrowings are generally based on prevailing market interest rates. During a period of rising interest rates, our borrowing costs generally will increase while the yields earned on our existing portfolio of leveraged fixed-rate assets will largely remain static. This can result in a decline in our net interest spread. Changes in the level of interest rates can also affect the rate of mortgage prepayments and the value of our assets.


Interest rates are highly sensitive to many factors, including fiscal and monetary policies and domestic and international economic and political considerations, as well as other factors beyond our control. Subject to maintaining our qualification as a REIT, we engage in a variety of interest rate management techniques to mitigate the influence of interest rate changes on our net interest income and fluctuations of our tangible net book value. The principal instruments that we use to hedge our interest rate risk are interest rate swaps, swaptions, U.S. Treasury securities and U.S. Treasury futures contracts. Our hedging techniques are highly complex and are partly based on assumed levels of prepayments of our assets. If prepayments are slower or faster than assumed, the maturity of our investments will also differ from our expectations, which could reduce the effectiveness of our hedging strategies and may cause losses on such transactions and adversely affect our cash flow.
The severity of potential declines in our tangible net book value due to fluctuations in interest rates would depend on our asset, liability, and hedge composition at the time, as well as the magnitude and duration of the interest rate change. Primary measures of an instrument's price sensitivity to interest rate fluctuations are its duration and convexity. Duration measures the estimated percentage change in market value of an instrument that would be caused by a parallel change in short and long-term interest rates. The duration of our assets will vary with changes in interest rates and tends to increase when interest rates rise and decrease when interest rates fall. This "negative convexity" generally increases the interest rate exposure of our investment portfolio in excess of what is measured by duration alone.
We estimate the duration and convexity of our assets using both a third-party risk management system and market data. We review the duration estimates from the third-party model and may make adjustments based on our judgment to better reflect any unique characteristics and market trading conventions associated with certain types of securities.
The table below quantifies the estimated changes in the fair value of our investment portfolio (including derivatives and other securities used for hedging purposes) and in our tangible net book value per common share as of March 31, 20202021 and December 31, 20192020 should interest rates go up or down by 50, 75 and 100 basis points, assuming instantaneous parallel shifts in the yield curve and including the impact of both duration and convexity. All values in the table below are measured as percentage changes from the base interest rate scenario. The base interest rate scenario assumes interest rates and prepayment projections as of March 31, 20202021 and December 31, 2019.2020.
40


To the extent that these estimates or other assumptions do not hold true, which is likely in a period of high volatility, actual results could differ materially from our projections. Moreover, if different models were employed in the analysis, materially different projections could result. Lastly, while the table below reflects the estimated impact of interest rate changes on a static portfolio, we actively manage our portfolio and we continuously adjust the size and composition of our asset and hedge portfolio. 
Interest Rate Sensitivity 1,2
Interest Rate Sensitivity 1,2
Interest Rate Sensitivity 1,2
 March 31, 2020 December 31, 2019March 31, 2021December 31, 2020
Change in Interest Rate Estimated Change in Portfolio Market Value Estimated Change in Tangible Net Book Value Per Common Share Estimated Change in Portfolio Market Value Estimated Change in Tangible Net Book Value Per Common ShareChange in Interest RateEstimated Change in Portfolio Market ValueEstimated Change in Tangible Net Book Value Per Common ShareEstimated Change in Portfolio Market ValueEstimated Change in Tangible Net Book Value Per Common Share
-100 Basis Points —% +0.1% -0.5% -6.0%-100 Basis Points-0.6%-5.8%-1.2%-12.6%
-75 Basis Points +0.2% +2.9% -0.3% -3.0%-75 Basis Points-0.3%-2.6%-0.9%-9.7%
-50 Basis Points +0.3% +3.3% -0.1% -0.9%-50 Basis Points0.0%-0.4%-0.5%-5.8%
+50 Basis Points -0.2% -2.6% -0.4% -4.7%+50 Basis Points-0.5%-4.6%-0.1%-1.1%
+75 Basis Points -0.5% -5.9% -0.8% -9.1%+75 Basis Points-0.8%-8.1%-0.4%-4.0%
+100 Basis Points -0.9% -10.3% -1.3% -14.8%+100 Basis Points-1.2%-12.0%-0.8%-8.1%

1.Derived from models that are dependent on inputs and assumptions provided by third parties, assumes there are no changes in mortgage spreads and assumes a static portfolio. Actual results could differ materially from these estimates.
2.Includes the effect of derivatives and other securities used for hedging purposes. Interest rates are floored at 0% in down rate scenarios.
1.Derived from models that are dependent on inputs and assumptions provided by third parties, assumes there are no changes in mortgage spreads and assumes a static portfolio. Actual results could differ materially from these estimates.
2.Includes the effect of derivatives and other securities used for hedging purposes. Interest rates are assumed to be floored at 0% in down rate scenarios.
Prepayment Risk
Prepayment risk is the risk that our assets will be repaid at a faster rate than anticipated. Interest rates and numerous other factors affect the rate of prepayments, such as housing prices, general economic conditions, loan age, size and loan-to-value ratios, and GSE buyouts of delinquent loans underlying our securities among.securities. Generally, prepayments increase during periods of falling mortgage interest rates and decrease during periods of rising mortgage interest rates. However, this may not always be the case.
If our assets prepay at a faster rate than anticipated, we may be unable to reinvest the repayments at acceptable yields. If the proceeds are reinvested at lower yields than our existing assets, our net interest income would be negatively impacted. We also amortize or accrete premiums and discounts we pay or receive at purchase relative to the stated principal of our assets into


interest income over their projected lives using the effective interest method. If the actual and estimated future prepayment experience differs from our prior estimates, we are required to record an adjustment to interest income for the impact of the cumulative difference in the effective yield.
Extension Risk
Extension risk is the risk that our assets will be repaid at a slower rate than anticipated and generally increases when interest rates rise. In which case,a rising or higher interest rate environment, we may havebe required to finance our investments at potentially higher costs without the ability to reinvest principal into higher yielding securities becauseas a result of borrowers prepayprepaying their mortgages at a slower pace than originally expected,anticipated, adversely impacting our net interest spread, and thus our net interest income.
As of March 31, 20202021 and December 31, 2019,2020, our investment securities (excluding TBAs) had a weighted average projected CPR of 14.5%11.3% and 10.8%17.6%, respectively, and a weighted average yield of 2.93%2.39% and 3.07%2.33%, respectively. The table below presents estimated weighted average projected CPRs and yields for our investment securities should interest rates go up or down instantaneously by 50, 75 and 100 basis points. Estimated yields exclude the impact of retroactive "catch-up" premium amortization adjustments fromfor prior periods due to changes in the projected CPR assumption.
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Interest Rate Sensitivity 1
Interest Rate Sensitivity 1
Interest Rate Sensitivity 1
 March 31, 2020 December 31, 2019March 31, 2021December 31, 2020
Change in Interest Rate Weighted Average Projected CPR 
Weighted Average Asset Yield 2
 Weighted Average Projected CPR 
Weighted Average Asset Yield 2
Change in Interest RateWeighted Average Projected CPR
Weighted Average Asset Yield 2
Weighted Average Projected CPR
Weighted Average Asset Yield 2
-100 Basis Points 19.5% 2.67% 20.3% 2.73%-100 Basis Points17.7%2.06%25.6%1.91%
-75 Basis Points 18.6% 2.70% 17.7% 2.82%-75 Basis Points15.7%2.16%23.9%1.99%
-50 Basis Points 17.4% 2.76% 15.0% 2.90%-50 Basis Points13.9%2.25%21.9%2.09%
Actual as of Period End 14.5% 2.93% 10.8% 3.07% Actual as of Period End11.3%2.39%17.6%2.33%
+50 Basis Points 11.4% 3.03% 8.1% 3.12%+50 Basis Points9.7%2.47%14.3%2.45%
+75 Basis Points 10.3% 3.08% 7.5% 3.15%+75 Basis Points9.1%2.50%13.0%2.51%
+100 Basis Points 9.4% 3.12% 6.8% 3.16%+100 Basis Points8.6%2.52%11.9%2.56%

1.Derived from models that are dependent on inputs and assumptions provided by third parties and assumes a static portfolio. Actual results could differ materially from these estimates. Table excludes TBA securities.
2.Asset yield based on historical cost basis and does not include the impact of retroactive "catch-up" premium amortization adjustments due to changes in projected CPR.
1.Derived from models that are dependent on inputs and assumptions provided by third parties and assumes a static portfolio. Actual results could differ materially from these estimates. Table excludes TBA securities.
2.Asset yield based on historical cost basis and does not include the impact of retroactive "catch-up" premium amortization adjustments due to changes in projected CPR.
Spread Risk
Spread risk is the risk that the market spread between the yield on our assets and the yield on benchmark interest rates linked to our interest rate hedges, such as U.S. Treasury rates and interest rate swap rates, may vary. As a levered investor in mortgage-backed securities, spread risk is an inherent component of our investment strategy. Consequently, although we use hedging instruments to attempt to protect against moves in interest rates, our hedges are generally not designed to protect against spread risk, and our tangible net book value could decline if spreads widen.
Fluctuations in mortgage spreads can occur due to a variety of factors, including changes in interest rates, prepayment expectations, actual or anticipated monetary policy actions by the U.S. and foreign central banks, liquidity conditions, required rates of returns on different assets and other market supply and demand factors. The table below quantifies the estimated changes in the fair value of our assets, net of hedges, and our tangible net book value per common share as of March 31, 20202021 and December 31, 20192020 should spreads widen or tighten by 10, 25 and 50 basis points. The estimated impact of changes in spreads is in addition to our interest rate shock sensitivity included in the interest rate shock table above. The table below assumes a spread duration of 4.55.6 and 5.04.4 years as of March 31, 20202021 and December 31, 2019,2020, respectively, based on interest rates and prices as of such dates; however, our portfolio's sensitivity to mortgage spread changes will vary with changes in interest rates and in the size and composition of our portfolio. Therefore, actual results could differ materially from our estimates.


Spread Sensitivity 1,2
Spread Sensitivity 1,2
Spread Sensitivity 1,2
 March 31, 2020 December 31, 2019March 31, 2021December 31, 2020
Change in MBS Spread Estimated Change in Portfolio Market Value Estimated Change in Tangible Net Book Value Per Common Share Estimated Change in Portfolio Market Value Estimated Change in Tangible Net Book Value Per Common ShareChange in MBS SpreadEstimated Change in Portfolio Market ValueEstimated Change in Tangible Net Book Value Per Common ShareEstimated Change in Portfolio Market ValueEstimated Change in Tangible Net Book Value Per Common Share
-50 Basis Points +2.3% +27.1% +2.5% +28.0%-50 Basis Points+2.8%+27.0%+2.2%+23.9%
-25 Basis Points +1.1% +13.6% +1.2% +14.0%-25 Basis Points+1.4%+13.5%+1.1%+11.9%
-10 Basis Points +0.5% +5.4% +0.5% +5.6%-10 Basis Points+0.6%+5.4%+0.4%+4.8%
+10 Basis Points -0.5% -5.4% -0.5% -5.6%+10 Basis Points-0.6%-5.4%-0.4%-4.8%
+25 Basis Points -1.1% -13.6% -1.2% -14.0%+25 Basis Points-1.4%-13.5%-1.1%-11.9%
+50 Basis Points -2.3% -27.1% -2.5% -28.0%+50 Basis Points-2.8%-27.0%-2.2%-23.9%

1.Spread sensitivity is derived from models that are dependent on inputs and assumptions provided by third parties, assumes there are no changes in interest rates and assumes a static portfolio. Actual results could differ materially from these estimates.
2.Includes the effect of derivatives and other securities used for hedging purposes.
1.Spread sensitivity is derived from models that are dependent on inputs and assumptions provided by third parties, assumes there are no changes in interest rates and assumes a static portfolio. Actual results could differ materially from these estimates.
2.Includes the effect of derivatives and other securities used for hedging purposes.
Liquidity Risk
Our liquidity risk principally arises from financing long-term fixed rate assets with shorter-term variable rate borrowings. Future borrowings are dependent upon the willingness of lenders to finance our investments, lender collateral
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requirements and the lenders’ determination of the fair value of the securities pledged as collateral, which fluctuates with changes in interest rates and liquidity conditions within the commercial banking and mortgage finance industries. 
As of March 31, 2020,2021, we believe that we have sufficient liquidity and capital resources available to execute our business strategy (see Liquidity and Capital Resources in this Form 10-Q for additional details). However, should the value of our collateral or the value of our derivative instruments suddenly decrease, margin calls relating to our funding liabilities and derivative agreements could increase, causing an adverse change in our liquidity position. Furthermore, there is no assurance that we will always be able to renew (or roll) our short-term funding liabilities. In addition, our counterparties have the option to increase our haircuts (margin requirements) on the assets we pledge against our funding liabilities, thereby reducing the amount that can be borrowed against an asset even if they agree to renew or roll our funding liabilities. Significantly higher haircuts can reduce our ability to leverage our portfolio or may even force us to sell assets, especially if correlated with asset price declines or faster prepayment rates on our assets.
Credit Risk
Our credit sensitive investments, such as CRT and non-Agency securities, expose us to the risk of nonpayment of principal, interest or other remuneration we are contractually entitled to. We are also exposed to credit risk in the event our repurchase agreement counterparties default on their obligations to resell the underlying collateral back to us at the end of the repo term or in the event our derivative counterparties do not perform under the terms of our derivative agreements.
We accept credit exposure related to our credit sensitive assets at levels we deem to be prudent within the context of our overall investment strategy. We attempt to manage this risk through careful asset selection, pre-acquisition due diligence, post-acquisition performance monitoring, and the sale of assets where we identify negative credit trends. We may also manage credit risk with credit default swaps or other financial derivatives that we believe are appropriate. Additionally, we may vary the mix of our interest rate and credit sensitive assets or our duration gap to adjust our credit exposure and/or improve the return profile of our assets, such as when we believe credit performance is inversely correlated with changes in interest rates. Our credit risk related to derivative and repurchase agreement transactions is largely mitigated by limiting our counterparties to major financial institutions with acceptable credit ratings or to registered central clearinghouses and monitoring concentration levels with any one counterparty. We also continuously monitor and adjust the amount of collateral pledged based on changes in market value.
There is no guarantee that our efforts to manage credit risk will be successful and we could suffer losses if credit performance is worse than our expectations or our counterparties default on their obligations. Excluding central clearing exchanges, as of March 31, 2020,2021, our maximum amount at risk with any counterparty related to our repurchase agreements was less than 6%2% of our tangible stockholders' equity and related to our derivative agreements was less than 1% of tangible stockholders' equity related to our interest rate swap and swaption agreements.equity.


Item 4. Controls and Procedures
We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in our Securities Exchange Act of 1934, as amended (the "Exchange Act") reports is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure based on the definition of "disclosure controls and procedures" as promulgated under the Exchange Act and the rules and regulations thereunder. In designing and evaluating the disclosure controls and procedures, management recognized that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management necessarily was required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.
We, including our Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of the design and operation of our disclosure controls and procedures as of March 31, 2020.2021. Based on the foregoing, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective.
Changes in Internal Control over Financial Reporting
There have been no changes in our "internal control over financial reporting" (as defined in Rule 13a-15(f) of the Exchange Act) that occurred during the last fiscal quarter 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
Neither we, nor any of our consolidated subsidiaries, are currently subject to any material litigation nor, to our knowledge, is any material litigation threatened against us or any consolidated subsidiary, other than routine litigation and administrative proceedings arising in each case, that isthe ordinary course of business. Such proceedings are not expected to have a material adverse effect on ourthe business, financial conditionconditions, or operations. You may refer to Part I. Item 3results of our 2019 Form 10-K concerning the resolution and dismissal of litigation involving the Company.operations.
Item 1A. Risk Factors
Except provided below, thereThere have been no material updateschanges to the risk factors previously disclosed in our 2019 Form 10-K. The following supplement should be read in conjunction with the "Risk Factors" identified in Part I, Item 1A of our 2019 Form 10-K.
The risks we face could materially adversely affect our business, results of operations, financial condition, liquidity and tangible net book value, and could cause our actual results to differ materially from our past results or the results contemplated by any forward-looking statements we make. The risks described in this report and our 2019Annual Report on Form 10-K are not the only risks we face. Additional risks and uncertainties not presently known to us, or not presently deemed material by us, may also impair our operations and performance.
The economic and financial market turbulence resulting from the COVID-19 pandemic (the "Pandemic") has adversely affected our financial results and financial position and could continue to negatively impact our business.
The rapid global outbreak of COVID-19, a respiratory disease caused by a novel coronavirus, has led to substantial financial market volatility and has significantly adversely affected both the U.S. and global economies. On March 11, 2020, the World Health Organization characterized COVID-19 as a pandemic, and on, March 13, 2020, President Trump declared the COVID-19 outbreak in the United States a national emergency. The COVID-19 outbreak in the United States has resulted in stay-at-home orders, school closures and widespread business shutdowns across the country. These shutdowns and other reductions in business activity have resulted in a contraction of U.S. GDP for the first quarter of 2020 and substantially increased current and projected unemployment levels. While the U.S. federal government and the Federal Reserve (the "Fed") have taken actions to reduce the negative economic impact of the Pandemic, as described in our Executive Overview-Trends and Recent Market Impacts, the extent to which these actions will mitigate the short-term and long-term negative impacts of the Pandemic on the U.S. economy, financial markets and our business is unclear, and the drop in the level of U.S. economic activity from these events could be sustained. The sudden and dramatic change to U.S. and global economic activity due to the Pandemic has resulted in severe financial market dislocations, varying degrees of illiquidity among fixed income assets, and a significant increase in market volatility, and such events may recur, persist or worsen.year ended December 31, 2020.
The economic and financial market turbulence resulting from the Pandemic negatively impacted our results of operations and our tangible net book value during the first quarter and could continue to negatively impact our business. Each of the "Risk Factors" described in our 2019 Form 10-K could be materially impacted by conditions resulting from the Pandemic. Risks that we believe may be heightened during and following the Pandemic and related developments are described below; however, you should review each of the risk factors described in our 2019 Form 10-K carefully in light of the Pandemic and related developments.


Because the direct and indirect impacts of the Pandemic and related developments are uncertain and depend on future events, they may also affect our operating and financial results in a manner that is not presently known to us or that we currently do not expect to present significant risks.
Model and forecast risks - The Pandemic and its impact on the U.S. and global economies, and the related governmental responses, have been unprecedented. It is difficult to assess or predict the impact of unprecedented events on our business, financial results and condition. Our forecasts and expectations relating to these developments are subject to many uncertainties and may change, perhaps substantially, from our current forecasts and expectations. Furthermore, our analytical models were not designed to incorporate the unique circumstances associated with the Pandemic and related developments. We use analytical models (both those supplied by third parties and proprietary models developed by us) and information supplied by our third-party vendors to value assets; forecast prepayment, default and foreclosure rates; and to manage risk. These predictive models are usually constructed based on historical trends, and the success of relying on such models depends heavily on the correlation between the reported historical data and future events or behavior. As such, the unprecedented economic and financial market events associated with the Pandemic reduce the ability of our models to predict future outcomes and could even render them invalid. Consequently, actual results could differ materially from our projections.
Spread and credit risks - Spread risk is an inherent component of our business and is increased by the use of leverage. Our hedging strategies are not designed to mitigate spread risk, and, thus, wider spreads negatively impact our tangible net book value. Spreads can widen due to a variety of factors, including changes in interest rates, prepayment expectations, actual or anticipated monetary policy actions by the U.S. and foreign central banks, liquidity conditions, required rates of returns on different assets and other market supply and demand factors, nearly all of which have been impacted by the Pandemic and related developments and are likely to continue to be impacted over at least the short to intermediate term as markets continue to grapple with their effects. The unprecedented decline in interest rates, extreme market volatility, and illiquidity across the fixed income markets stemming from these developments resulted in historically wide and volatile spread movements during the first quarter of 2020. The Fed's unprecedented purchases of Agency RMBS and U.S. Treasury securities that began in March have eased conditions somewhat, but markets remain fragile. The Fed has committed its continued support of the U.S. Treasury and Agency RMBS markets and to the liquidity of repo funding markets backed by U.S. Treasury and Agency collateral. However, should the Fed fail to maintain an adequate level of support, prematurely reduce its support or stop its support altogether any number of adverse market reactions could occur, including materially wider spread movements. It is also possible that despite substantial Fed support, the funding market for Agency MBS could still deteriorate if primary dealers are unwilling to pass along the liquidity provided by the Fed to broader market participants. Additionally, an unwinding of the Fed's purchases of Agency and U.S. Treasury securities could severely disrupt the fixed income markets, resulting in interest rate volatility and wider spreads. Should any of these events occur, our tangible net book value and our financial position could be materially adversely impacted. In addition to spread risks, our investments in CRT and non-agency RMBS and CMBS are subject to credit risk, and the Pandemic and related developments may adversely impact the credit quality of those investments and result in our experiencing a loss on these investments.
Prepayment risk - The Pandemic has led to historically low interest rates. Prepayments on our investment securities typically increase when interest rates fall. An increase in prepayments can negatively impact our net interest margin and tangible net book value, which could be material. Over the near term, we anticipate that social distancing, operational headwinds and negative credit conditions arising from the Pandemic are likely to disrupt housing turnover, mortgage originations and refinance activity. These conditions could mitigate an increase in prepayment activity despite the current record low interest rates. However, the extent and duration of any such mitigation is uncertain, and prepayments could materially exceed our expectations. Furthermore, over time, we expect that prepayment activity for much of the mortgage universe will increase as these conditions abate and lenders become increasingly willing to lend. Additionally, technological advances and changes to GSE underwriting requirements, potentially implemented in part or in whole in response to the Pandemic, could lead to materially faster prepayments. It is also possible that after the extended forbearance periods offered by the GSEs, which may extend up to 12 months, borrowers may be unable to resume monthly payments leading to a larger scale of buyouts of delinquent loans from mortgage pools by the GSE's than we anticipate. Furthermore, since prepayment models were not designed to incorporate the unique circumstances associated with the Pandemic, they may be less predictive of prepayment activity, hindering our ability to accurately forecast prepayment rates.
Extension risk - The social distancing measures instituted to combat the Pandemic have resulted in curtailed or ceased activity in many parts of the economy and have raised fears that the U.S. and global economies will enter a deep and protracted recession, or even depression. These fears have led to a historic decline in interest rates; however, should the U.S. economy recover faster than anticipated, interest rates could rise rapidly. Should this occur, the duration of our mortgage portfolio could extend faster than we expect and negatively impact our net book value. Although we expect to hedge against an increase in interest rates and manage our net duration gap, we cannot guarantee that our hedges or other funding and liability management activities will adequately protect us against extension risk and, thus, our tangible net book value could be materially adversely impacted should this occur.


Hedging and interest rate risks - Our hedges are intended to limit the adverse effect of changes in interest rates on our assets and cost of funds. Hedging strategies are complex and we use analytical models to help manage our risk. Since analytical models may be less reliable given the unprecedented events stemming from the Pandemic, there is an increased risk that our hedging strategies may be less effective, or even ineffective, which could materially adversely affect our financial position and tangible net book value. There are also many uncertainties associated with the Pandemic and the short and long-term economic and fiscal tolls are difficult to predict. With interest rates at or near their zero-bound range, an actual or anticipated severe economic recession or depression could cause interest rates to fall below zero. Negative rates could result in material losses on our interest rate hedges and negatively impact our net interest margin, adversely affecting our net income and tangible net book value. Although we expect that the Fed would use all its monetary policy tools to prevent negative rates, there is no guarantee that it will do so or that it would be successful at keeping rates above zero.
Liquidity risks - Turbulent market conditions resulting from the Pandemic increase the risk of margin calls under our funding and derivative agreements. If the value of our pledged collateral or if the value of our interest rate hedges declines, we will be required to post additional collateral. Counterparties may also increase haircut levels or overall margin requirements and generally have the right to unilaterally value our collateral. Counterparties to certain agreements, such as TBA clearing agreements, may only post collateral to us up to certain limits, resulting in our inability to receive collateral when it would otherwise have been due. Certain assets, such as credit assets, may not be financeable, or haircuts and pricing for such assets could increase substantially, particularly in periods of market volatility. Lastly, to the extent we are entitled to receive collateral from counterparties, they may be unwilling or unable to return collateral in a timely manner. If conditions result in our inability to meet margin calls, we could default on our obligations and be forced to sell assets under adverse conditions. In addition, if counterparties fail to fulfill their obligations to us, we could experience a loss. We may be unable to raise additional equity capital or procure funding, at all or on favorable terms, to address liquidity or other needs.
Human capital and business resiliency risks - Since mid-March, all of our workforce has been working remotely consistent with our business continuity plan. Stay-at-home orders in effect in the states and localities where our workforce is located may be extended in whole or in part for several additional weeks or months. The strain on our workforce and our business operations caused by this shift in our operating environment may result in business interruptions, reduced productivity and other adverse impacts on our operations. While our technological systems to date have continued to function with our workforce working remotely, this telework arrangement increases the risk of technological or cybersecurity incidents that could negatively affect our business operations. This telework arrangement, the risk that our employees or their family members could contract COVID-19 and our reliance for some services and functions on third parties, which are largely working under similar conditions, could also adversely affect our ability to maintain effective controls and procedures, which could result in material errors in our reported results or disclosures that are not complete or accurate.
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
Stock Repurchase Program
In JulyOctober of 2019,2020, our Board of Directors authorized the repurchase of up to $1 billion of our outstanding shares of common stock through December 31, 2020. No shares were repurchased during the quarter ended March 31, 2020.2021. As of March 31, 2020, we had $0.92021, the Company has repurchased shares at an aggregate amount of $316 million under the program. As of March 31, 2021, $0.7 billion of common stock remainingremained available for repurchase.repurchase under the program. The following table presents information with respect to purchases of our common stock made during the three months ended March 31, 2021 by us or any "affiliated purchaser" of us, as defined in Rule 10b-18(a)(3) under the Exchange Act (in millions, except per share amounts):

Period 1
Total Number of Shares PurchasedAverage Net Price Paid Per Share
Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs 2
Maximum Number (or Approximate Dollar Value) of Shares That May Yet Be Purchased Under the Publicly Announced Plans or Programs (in millions)
January 1, 2021 - January 31, 20211.7$15.671.7$872
February 1, 2021 - February 28, 20215.2$16.125.2787
March 1, 2021 - March 31, 20216.4$16.096.4684
Total13.3$16.0513.3$684
___________________________
1.Amounts are reported based on the trade date of the share repurchase.
2.All shares purchased by the Company were pursuant to the stock repurchase program described in Note 9 of our accompanying Consolidated Financial Statements in this Form 10-Q.
Item 3. Defaults upon Senior Securities
None.
Item 4. Mine Safety Disclosures
Not applicable.
Item 5. Other Information
None.




Item 6.    Exhibits and Financial Statement Schedules
(a) Exhibit Index
Exhibit No.    Description
44




N.A., jointly as depositary, incorporated herein by reference to Exhibit 4.2 of Form 8-K (File No. 001-34057) filed March 6, 2019.
*4.11Form of Depositary Receipt representing 1/1,000th of a share of 6.875% Series D Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock (included as part of Exhibit 4.10), incorporated herein by reference to Exhibit A of Exhibit 4.2 of Form 8-K (File No. 001-34057) filed March 6, 2019.
*4.11
45


101.INS**    The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document
101.SCH**    XBRL Taxonomy Extension Schema Document
101.CAL**    XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB**    XBRL Taxonomy Extension Labels Linkbase Document
101.PRE**    XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF**    XBRL Taxonomy Extension Definition Linkbase Document
101.INS**The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document
101.SCH**XBRL Taxonomy Extension Schema Document
101.CAL**XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB**XBRL Taxonomy Extension Labels Linkbase Document
101.PRE**XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF**XBRL Taxonomy Extension Definition Linkbase Document

*    Previously filed
**This exhibit is being furnished rather than filed, and shall not be deemed incorporated by reference into any filing, in accordance with Item 601 of Regulation S-K
**    This exhibit is being furnished rather than filed, and shall not be deemed incorporated by reference into any filing, in accordance with Item 601 of Regulation S-K
†    Management contract or compensatory plan or arrangement

(b)Exhibits
See the exhibits filed herewith.
(b)    Exhibits
        See the exhibits filed herewith.
 
(c)Additional financial statement schedules
(c)    Additional financial statement schedules
None.

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SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Company has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
 
AGNC INVESTMENT CORP.
By:
/s/    GARY D. KAIN
Gary D. Kain
Chief Executive Officer and
Chief Investment Officer (Principal Executive Officer)
Date:May 11, 20207, 2021
By:
/s/    BERNICE E. BELL
Bernice E. Bell
Senior Vice President and
Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)
Date:May 11, 20207, 2021




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