TBA dollar roll income is calculated as the difference in price between two TBA contracts with the same terms but different settlement dates multiplied by the notional amount of the TBA contract. Although accounted for as derivatives, TBA dollar rolls capture the economic equivalent of net interest income, or carry, on the underlying Agency MBS (interest income less an implied cost of financing). TBA dollar roll income is reported as a component of Net gains (losses) on derivatives in the Consolidated Statements of Comprehensive Income (Loss). The CMBX index is a synthetic tradable index referencing a basket of 25 commercial mortgage-backed securities of a particular rating and vintage. The CMBX index allows investors to take a long position (referred to as selling protection) or short position (referred to as purchasing protection) on the respective basket of commercial mortgage-backed securities and is structured as a “pay-as-you-go” contract whereby the protection seller receives and the protection buyer pays a standardized running coupon on the contracted notional amount. Additionally, the protection seller is obligated to pay to the protection buyer the amount of principal losses and/or coupon shortfalls on the underlying commercial mortgage-backed securities as they occur. We report income (expense) on CMBX positions in Net gains (losses) on derivatives in the Consolidated Statements of Comprehensive Income (Loss). The coupon payments received or paid on CMBX positions is equivalent to interest income (expense) and therefore included in earnings available for distribution. Premium Amortization Expense In accordance with GAAP, we amortize or accrete premiums or discounts into interest income for our Agency MBS, excluding interest-only securities, multifamily and reverse mortgages, taking into account estimates of future principal prepayments in the calculation of the effective yield. We recalculate the effective yield as differences between anticipated and actual prepayments occur. Using third party models and market information to project future cash flows and expected remaining lives of securities, the effective interest rate determined for each security is applied as if it had been in place from the date of the security’s acquisition. The amortized cost of the security is then adjusted to the amount that would have existed had the new effective yield been applied since the acquisition date. The adjustment to amortized cost is offset with a charge or credit to interest income. Changes in interest rates and other market factors will impact prepayment speed projections and the amount of premium amortization recognized in any given period. Our GAAP metrics include the unadjusted impact of amortization and accretion associated with this method. Certain of our non-GAAP metrics exclude the effect of the PAA, which quantifies the component of premium amortization representing the cumulative impact on prior periods, but not the current period, of quarter-over-quarter changes in estimated long-term Constant Prepayment Rate (“CPR”). The following table illustrates the impact of the PAA on premium amortization expense for our Residential Securities portfolio for the periods presented: For the Years Ended December 31, 2023 2022 2021 (dollars in thousands) Premium amortization expense $ 165,158 $ 48,013 $ 760,818 Less: PAA cost (benefit) 1,654 (360,587) 57,158 Premium amortization expense (excluding PAA) $ 163,504 $ 408,600 $ 703,660 Economic Leverage and Economic Capital Ratios We use capital coupled with borrowed funds to invest primarily in real estate related investments, earning the spread between the yield on our assets and the cost of our borrowings and hedging activities. Our capital structure is designed to offer an efficient complement of funding sources to generate positive risk-adjusted returns for our stockholders while maintaining appropriate liquidity to support our business and meet our financial obligations under periods of market stress. To maintain our desired capital profile, we utilize a mix of debt and equity funding. Debt funding may include the use of repurchase agreements, loans, securitizations, participations issued, lines of credit, asset backed lending facilities, corporate bond issuance, convertible bonds, mortgages payable or other liabilities. Equity capital primarily consists of common and preferred stock. Our economic leverage ratio is computed as the sum of recourse debt, cost basis of TBA and CMBX derivatives outstanding, and net forward purchases (sales) of investments divided by total equity. Recourse debt consists of repurchase agreements, other secured financing (excluding certain non-recourse credit facilities), and U.S. Treasury securities sold, not yet purchased. Certain credit facilities (included within other secured financing), debt issued by securitization vehicles, and participations issued are non-recourse to us and are excluded from economic leverage. ANNALY CAPITAL MANAGEMENT, INC. AND SUBSIDIARIES Item 7. Management’s Discussion and Analysis 56
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