Evaluating banks’ financial strength and stability

Capital is the most critical metric for evaluating a bank. It represents the cushion a bank holds to absorb unexpected losses before its solvency is threatened.

Regulators primarily focus on the Common Equity Tier 1 (CET1) ratio. This ratio compares a bank’s core capital against its risk-weighted assets. According to recent 2025 Federal Reserve Stress Test Results, the aggregate CET1 ratio for large U.S. banks stands at approximately 13.4% [2]. Even under “severely adverse” hypothetical scenarios involving high unemployment and market crashes, these banks projected a stressed minimum of 11.6%, well above the regulatory requirement of 4.5% [2].

What to look for:

• Target: For major institutions, a CET1 ratio above 10% is generally considered robust.

• Community Banks: Smaller banks often maintain even higher capital ratios to offset their smaller geographic footprint. Data from the FDIC’s Third Quarter 2025 report shows that the banking industry continues to maintain historically high capital levels [3].

Liquidity is a bank’s ability to meet its immediate obligations, such as customer withdrawals. The 2023 banking crisis demonstrated that even “well-capitalized” banks can fail if they suffer a rapid drain on liquidity.

Current assessments from the Office of the Comptroller of the Currency (OCC) emphasize that liquidity in the federal banking system remains sound, with liquid assets making up roughly 32% of total assets as of June 2025—nearly triple the levels seen during the 2008 financial crisis [4].

Red Flags to Watch:

• Uninsured Deposit Concentration: Banks with a high percentage of deposits exceeding the $250,000 FDIC limit are more susceptible to “bank runs.”

• Unrealized Losses: Many banks still hold long-term Treasury bonds purchased when interest rates were low. If a bank is forced to sell these bonds early to satisfy withdrawals, they must realize “fair value losses” [1]. As of late 2025, total unrealized losses in the industry sit at roughly $337.1 billion—a significant figure, but the lowest level since early 2022 [3].

A bank’s strength is only as good as the loans on its books. When borrowers default, the bank’s capital is eroded.

Current trends show that while overall asset quality is favorable, specific sectors are under pressure. The Past-Due and Nonaccrual (PDNA) rate for non-owner-occupied Commercial Real Estate (CRE) remains elevated at 4.18% for the largest institutions [3]. While large banks have lower concentrations of these loans relative to their total capital, smaller banks may be more exposed [3].

For consumers, choosing an institution involves weighing these high-level metrics against the services they provide. For example, as we discuss in The Essential Guide to Banking and Financial Products, the type of loan products a bank offers often dictates its risk profile (e.g., a focus on subprime auto loans vs. conservative mortgages).

A stable bank must be a profitable one. Profitability allows a bank to build capital internally rather than relying on external investors.

The industry reported an aggregate Net Interest Margin (NIM) of 3.34% in Q3 2025 [3]. Community banks outperformed this slightly with a NIM of 3.73%, driven by higher yields on loans [3].

However, investors on platforms like Reddit (r/Banking) frequently discuss how higher profitability for a bank often comes at the expense of the customer in the form of lower savings rates or higher fees. While high NIM is a sign of financial stability, it may signal a less competitive product for the average saver. Check out our guide on popular banks for international travelers to see how different banks balance global accessibility with their fee structures.

Modern stability isn’t just about the balance sheet; it’s about the servers. The OCC has warned of increasing threats from foreign state-sponsored actors targeting the financial sector [4]. A bank that lacks investment in technology architecture faces material risks to its long-term viability [4].

This high-tech aspect of stability is often reflected in how a bank interacts with its customers. As we detailed in Evaluating Bank Customer Service: What to Look for In-Branch and Online, a bank’s investment in its digital infrastructure is a strong proxy for its overall operational health.

The Stability Checklist

• CET1 Ratio: Aim for institutions with 10% or higher.
• Deposit Insurance: Ensure your deposits are within FDIC ($250k) or NCUA limits.
• NIM (Net Interest Margin): A range of 3%–4% suggests the bank is generating enough profit to sustain itself.
• Asset Quality: Monitor the bank’s exposure to Commercial Real Estate, particularly the “non-owner-occupied” office sector.

Action Plan: How to Evaluate Your Bank

1. Check the “Call Report”: For U.S. banks, use the FDIC’s BankFind Suite to look up your specific bank’s capital ratios and tier-one leverage.
2. Verify Insurance: Confirm the “FDIC member” status to ensure your principal is protected up to statutory limits.
3. Audit Your Deposits: If you have over $250,000, consider spreading funds across multiple institutions or using a “max deposit” service to ensure all funds are insured.
4. Monitor the Fed Stress Tests: Review the annual June reports for “Category I” (Global Systemically Important) banks to see how your large institution would fare in a recession.

While the current banking system shows significant resilience compared to previous decades, financial stability is a dynamic target. By monitoring capital buffers and being aware of a bank’s exposure to volatile sectors like commercial real estate, consumers can move their money from a place of mere convenience to one of verified safety.