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Before buying a mortgage stock, first identify what the company actually does: a bank with mortgage exposure and a mortgage REIT can own similar assets but have very different funding, leverage, and loss risks. Then assess the assets, how they are funded, how the business performs under stress, and whether the share price makes sense against the balance sheet and earnings. No single delinquency rate or price-to-book multiple answers all of those questions.
First, identify the kind of mortgage business
“Mortgage stocks” is an umbrella term, not a single business model. A bank may hold mortgage loans and mortgage-backed securities while funding itself largely through deposits and other bank funding. A mortgage REIT may own mortgage-backed securities or originate or acquire loans, using repurchase agreements (repo), securitizations, or other secured borrowing. Those structures expose shareholders to different funding pressures and measures of leverage.
Start with the latest annual and quarterly filings. Read the business description and balance-sheet disclosures to establish the main asset types, how the company earns income, and how it finances those assets. Do not compare two companies as if they were alike just because both have “mortgage” in their names.
Compare the risks using the right measures
| What to examine | Bank with mortgage exposure | Mortgage REIT |
|---|---|---|
| Asset and loan quality | Mortgage and other loan delinquencies, nonaccruals, charge-offs, credit-loss allowances, portfolio mix, and borrower or geographic concentrations. | Borrower and collateral quality, delinquencies and defaults, risk ratings, credit-loss allowance, and any real-estate-owned assets. |
| Funding | Deposit composition and stability, disclosed uninsured or brokered deposits, wholesale funding, liquidity, deposit costs, and net interest margin. | Repo, warehouse, securitization, or other secured funding; recourse status, counterparties, maturities, collateral haircuts, and liquidity for margin calls. |
| Loss absorption and leverage | Regulatory capital, tangible equity, liquidity, and sensitivity to losses on loans or securities. | The company’s leverage definition and level, recourse exposure, equity buffer, hedging, and capacity to withstand asset-value changes or collateral calls. |
| Earnings engine | Net interest income and margin, mortgage banking or servicing income where relevant, provisions, and operating costs. | Asset yields relative to funding costs, realized and unrealized gains or losses, hedge results, credit losses, and distribution sustainability. |
| Valuation | Price-to-book and price-to-tangible-book considered alongside profitability, capital, asset quality, and earnings power. | Price relative to book value per share, considered alongside the book-value calculation, asset marks, estimated credit losses, funding cost, and leverage. |
This is a way to organize company research, not a mechanical ranking system. The cited regulatory and company sources do not establish a universal fair-value multiple or one best metric for every mortgage-related stock.
#1 Best Overall
How to assess loan quality
A delinquency rate is a useful signal, but it is only one point in the credit story. Check how delinquencies and nonperforming loans change over time, and distinguish early-stage delinquency from nonaccrual, default, charge-off, and eventual recovery. These measures describe different stages or outcomes; treating them as interchangeable can make credit look either better or worse than it is.
- Look for direction and composition. Compare the company’s credit indicators over several reporting periods and break them out by loan type where the filing allows. A portfolio concentrated in particular property types, borrowers, or locations may not be well represented by a company-wide average.
- Check losses and reserves together. Review charge-offs alongside the allowance for credit losses or other disclosed reserves. Consider whether the allowance and the company’s explanation of expected losses make sense in light of the portfolio and reported performance.
- Read collateral and borrower disclosures. For mortgage REITs, inspect disclosed collateral quality, risk ratings, defaults, and real-estate-owned assets when applicable. For banks, review mortgage and other loan categories, nonaccruals, and concentrations.
- Use sector statistics only as context. The Federal Reserve Board’s June 2026 report put aggregate commercial-bank total-loan delinquency at 1.6% at year-end 2025, below its stated long-run historical average of about 3%. That is a measure of bank loans overall, not an estimate of any one bank’s mortgage losses or a mortgage REIT’s credit risk.
How to judge funding and liquidity
For banks: deposits and wholesale funding
Assess the mix and stability of deposits, disclosed uninsured or brokered deposits, reliance on wholesale borrowing, liquidity, deposit costs, and net interest margin. The Federal Reserve describes wholesale funding as potentially more costly and less stable than core deposits, so a bank’s funding sources matter in addition to the interest rate it reports paying.
Rank #2
Sector conditions can help frame, but not settle, that review. The Federal Reserve Board reported aggregate commercial-bank deposits of $19.5 trillion in February 2026. The FDIC’s 2026 Risk Review, updated April 22, 2026, says wholesale funding declined as banks reduced Federal Home Loan Bank borrowings and brokered deposits. These figures and trends describe the broader U.S. banking system; they do not establish the funding quality of a particular issuer.
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Find out how repo and other secured financing work for the company: whether obligations are recourse or nonrecourse, when they mature, which counterparties provide them, and what collateral terms apply. A decline in the value of pledged assets can create a need for additional collateral or cash. Check the company’s liquidity discussion for how it says it would meet such demands and whether it has material funding or counterparty concentrations.
Read the company’s own definition of leverage before comparing ratios. AGNC Investment Corp.’s 2025 Form 10-K reported tangible-net-book-value-at-risk leverage of 7.2x at December 31, 2025. That is a company-specific measure on that date, not a sector norm, recommendation, or directly comparable figure unless another issuer defines leverage the same way.
How interest rates can affect the business
Interest-rate changes can affect asset values and funding costs at different speeds and by different amounts. They can also alter bank margins, mortgage refinancing and prepayment behavior, and the effectiveness of a mortgage REIT’s hedges. The result depends on the issuer’s asset and liability mix rather than on a simple rule that mortgage stocks rise or fall with rates.
Rank #4
Use each issuer’s interest-rate risk discussion and sensitivity analysis to see what scenarios it presents and which measures it reports. For a mortgage REIT, read that alongside its leverage, hedge results, funding arrangements, and book-value discussion. For a bank, consider the stated effect on net interest income or margin together with the composition and repricing of assets and deposits. Sensitivity disclosures are scenario analyses, not guarantees of future performance.
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How to interpret book value and valuation
Book value is a starting point for asking what the market price implies about the company’s balance sheet; it is not, by itself, proof that a share is cheap or expensive. For a bank, compare market price with book value or tangible book value and assess that relationship alongside capital, asset quality, profitability, and earning power. For a mortgage REIT, compare price with book value per share while examining how that book value is calculated, how assets are marked, and how leverage and funding costs affect it.
Then connect the balance sheet to the earnings engine. A bank’s provisions, operating costs, and net interest income affect the earnings available to support its valuation. For a mortgage REIT, asset yields relative to funding costs, realized and unrealized gains or losses, credit losses, and hedge results shape results. If the company pays a distribution, examine whether earnings and cash flows support it under the risks described in the filing; a headline yield alone does not establish that the distribution is sustainable.
Accounting and portfolio structures differ across issuers, so price-to-book comparisons can be misleading without that context. The sources available here do not establish a single appropriate multiple for all mortgage-related companies.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.A practical filing-review sequence
- Identify the business model and assets. In the latest annual report and quarterly filings, determine whether the issuer is a bank, a mortgage REIT, or another kind of mortgage-related business, and identify its major asset types.
- Trace credit performance. Review loan portfolio tables, delinquency and nonaccrual trends, charge-offs, allowances, and portfolio or geographic concentrations. Keep early-stage delinquency separate from later credit outcomes.
- Follow the funding. For a bank, examine deposit mix, funding stability, wholesale borrowing, liquidity, and deposit costs. For a mortgage REIT, examine repo or securitization terms, recourse, collateral requirements, counterparties, maturities, and margin-call liquidity.
- Test loss capacity and rate exposure. Read capital or leverage definitions, liquidity disclosures, hedging discussion, and interest-rate sensitivity analysis. Consider how a credit shock, asset-value decline, or higher funding cost could affect the company.
- Assess earnings quality. Reconcile company-defined non-GAAP measures with GAAP measures where applicable, then consider how recurring income, provisions or credit losses, funding costs, and other gains or losses contribute to reported results.
- Interpret the market price last. Compare price with the relevant book-value measure only after reviewing asset marks, reserves, capital or leverage, funding, and profitability. Use the issuer’s latest filings and current market price for any company-specific valuation judgment.
What broad sector data can—and cannot—tell you
The Federal Reserve’s June 2026 report and the FDIC’s 2026 Risk Review provide context on U.S. bank conditions in 2025 and early 2026. The FDIC characterized bank credit risks as generally contained while noting ongoing weaknesses in commercial real estate and some consumer loan types. Those observations do not establish an individual bank’s exposure or predict the performance of a mortgage REIT. Issuer filings are needed to evaluate a particular company’s loans, securities, funding, liquidity, and valuation.
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