Mortgage REITs such as Invesco Mortgage Capital (NYSE: IVR) make money mainly by earning interest on mortgage-backed securities and related assets while paying interest on the borrowing used to finance them. The difference is net interest income—but it is only one part of reported earnings. Changes in investment values and derivative results can also make a mortgage REIT’s results swing sharply.
How does Invesco Mortgage Capital make money?
IVR invests in, finances, and manages mortgage-backed securities (MBS) and other mortgage-related assets. An MBS represents claims on cash flows from a pool of mortgage loans. Unlike a conventional property REIT whose business may center on collecting rent, a mortgage REIT such as IVR invests in mortgage-related financial assets.
The business has five connected parts:
- Buy mortgage securities. IVR’s FY2025 annual report says its portfolio at December 31, 2025 included agency residential mortgage-backed securities (RMBS) and agency commercial mortgage-backed securities (CMBS). The report describes agency securities as guaranteed by or associated with U.S. government agencies or federally chartered corporations.
- Finance some holdings. Repurchase agreements, or repos, are a primary financing source discussed in IVR’s annual report. In a repo, securities are transferred under an agreement to repurchase them, economically providing short-term secured financing. The amount borrowed and its cost affect how much of the asset income the company retains.
- Earn a net interest spread. Interest from mortgage assets is offset by interest expense on financing. When asset yields exceed funding costs, the company earns net interest income; when funding costs rise relative to asset yields, the spread can narrow.
- Manage market exposures. IVR uses derivatives and portfolio management to address risks, but a hedge does not guarantee that any gain will match a loss elsewhere. Investment and derivative gains or losses can both affect reported results.
- Make distributions subject to REIT rules and board decisions. IVR elected to be taxed as a U.S. real estate investment trust (REIT). That tax status does not promise a particular dividend, uninterrupted payments, or a specific shareholder return.
What is net interest income for a mortgage REIT?
Net interest income is interest income minus interest expense. It is a useful measure of the income generated by the basic asset-and-financing spread, but it is not the same as net income or an investor’s total return. A mortgage REIT’s reported results can also reflect investment gains or losses and gains or losses on derivatives.
In its fiscal year ended December 31, 2025, Invesco Mortgage Capital reported the following amounts. The figures are company-reported results for that year, converted from the filing’s amounts in thousands:
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| FY2025 item | Reported amount | What it represents |
|---|---|---|
| Interest income | $295.287 million | Interest earned on assets |
| Interest expense | $219.865 million | Interest paid on financing |
| Net interest income | $75.422 million | Interest income less interest expense |
| Net gains on investments | $149.344 million | Investment gains reported for the year |
| Net losses on derivative instruments | $104.926 million | Derivative losses reported for the year |
These figures show why the spread alone does not explain the full result: investment and derivative outcomes also mattered in FY2025. They describe one reported fiscal year, not typical performance, a forecast, or a guide to future dividends.
Why are mortgage REIT earnings volatile?
A mortgage REIT combines interest-sensitive assets, borrowing, and risk-management instruments. Changes in rates, mortgage pricing, funding conditions, and borrower behavior can affect income, asset values, and the effectiveness of hedges in different ways.
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- Interest-rate risk: Rate movements can change the market value of fixed-income securities and the economics of hedges.
- Mortgage-spread risk: Mortgage spreads can widen relative to benchmark rates, putting pressure on mortgage-security prices even if benchmark rates are stable.
- Prepayment and extension risk: Homeowners may repay mortgages faster or slower than expected. That changes the timing of cash flows and the effective yields on mortgage assets.
- Funding and leverage risk: Borrowing can increase the sensitivity of equity returns. Falling collateral values or tighter financing terms can also create liquidity pressure.
- Hedge mismatch: Derivatives may offset some exposures but can also produce losses or fail to track the assets closely because of basis or timing differences. IVR’s FY2025 derivative loss illustrates that hedging is not guaranteed to produce a profit.
- Dividend variability: REIT tax treatment does not guarantee a fixed dividend. Distributions are distinct from net interest income and from total return.
How do interest rates affect mortgage REITs?
Rates can affect both sides of the business: the value and yield of mortgage securities, and the cost of financing them. If funding costs rise faster than asset yields, the net interest spread may compress. Rate changes can also alter security prices and hedge values. The effect is not necessarily one-directional: mortgage spreads, borrower prepayments, financing terms, leverage, and hedge performance can change the outcome.
For IVR specifically, its Q1 2026 Form 10-Q reports agency RMBS and agency CMBS in the portfolio at March 31, 2026. That is a dated filing snapshot, not a statement about the portfolio on a later date.
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Comparisons are most useful when they use the same reporting periods and distinguish portfolio income from valuation and hedge effects. Relevant measures include:
- Portfolio mix, including agency versus credit exposure.
- Asset yields, cost of funds, and net interest margin.
- Leverage and financing structure.
- Hedge strategy and reported derivative results.
- Book-value or investment valuation changes.
- Dividend coverage and variability.
These measures help explain different risk and earnings profiles; no single year of net interest income establishes the likely return or dividend for a shareholder.
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