--- title: "Bank Failures: definition, formula, and thresholds" description: "A bank failure occurs when a regulator closes an insolvent or critically undercapitalized bank and appoints the FDIC as receiver. Failures cluster in credit and rate crises and are the ultimate outcome the safety-and-soundness metrics try to predict." canonical_url: https://www.bankregreports.com/glossary/bank-failures/ source: BankRegReports category: "Supervision & Ratings" units: "ratio" --- # Bank Failures > A bank failure occurs when a regulator closes an insolvent or critically undercapitalized bank and appoints the FDIC as receiver. Failures cluster in credit and rate crises and are the ultimate outcome the safety-and-soundness metrics try to predict. ## Formula ``` Failure Risk ≈ f(thin capital, poor asset quality, weak earnings, illiquidity, high uninsured/unrealized-loss exposure) ``` Banks rarely fail for one reason. The classic pattern is eroding capital and asset quality (the 2008-2010 CRE/construction wave) or a liquidity run on a bank with heavy uninsured deposits and unrealized securities losses (2023). The FDIC publishes every failure and its resolution. ## Why it matters Failures impose losses on the Deposit Insurance Fund, uninsured depositors, and shareholders, and can spread contagion. Understanding the metrics that precede failure (capital, Texas ratio, liquidity, uninsured-deposit and unrealized-loss exposure) is the entire point of bank surveillance. ## How to read it No single ratio predicts failure, but combinations do: a high Texas ratio with thin capital, or heavy uninsured deposits alongside large unrealized losses and weak liquidity. Read the failure-risk picture as a syndrome across capital, asset quality, and liquidity rather than one number. ## Thresholds | Range | Reading | What it means | |---|---|---| | Strong across CAMELS | Low risk | Sound capital, asset quality, and liquidity. | | Isolated weakness | Moderate | One pressured area, otherwise sound. | | Multiple weak areas | Watch | Capital, credit, or liquidity stress building together. | | Distress syndrome | Concern | Thin capital + poor asset quality or a liquidity/uninsured run profile. | ## Worked example The 2023 failures shared a profile: very high uninsured-deposit shares, large unrealized securities losses, and thin on-hand liquidity. The 2008-2010 wave looked different (heavy construction and CRE concentrations with collapsing asset quality) but both were visible in the metrics beforehand. ## Questions ### What happens when a bank fails? Its chartering authority closes it and appoints the FDIC as receiver. The FDIC typically sells the deposits and assets to a healthy acquirer over a weekend, protecting insured depositors; uninsured depositors and shareholders may take losses. ### Can bank failures be predicted from Call Report data? Not with certainty, but the conditions that precede failure (weak capital, high Texas ratio, poor asset quality, heavy uninsured deposits, and large unrealized losses) are visible in Call Report data, which is what surveillance and failure-prediction models monitor. ## Sources - FDIC Failed Bank List - FFIEC Call Report (predictive metrics) ## Related metrics - [Texas Ratio](https://www.bankregreports.com/glossary/texas-ratio/): The Texas ratio is a bank's problem assets divided by its tangible equity plus loan loss reserves. Problem assets are nonaccrual loans, loans 90 or more days past due and other real estate owned, net of government guarantees. A ratio above 100% means problem assets exceed the capacity to absorb them, a level long tied to bank failures. - [Prompt Corrective Action](https://www.bankregreports.com/glossary/prompt-corrective-action/): Prompt Corrective Action (PCA) is the framework that sorts banks into capital categories (from well capitalized to critically undercapitalized) and imposes escalating mandatory restrictions as capital falls. It defines the 'well capitalized' threshold banks aim to clear. - [Enforcement Actions](https://www.bankregreports.com/glossary/enforcement-actions/): Enforcement actions are formal and informal measures bank regulators take against an institution or its officers: consent orders, cease-and-desist orders, civil money penalties, and written agreements. They are the public footprint of supervisory problems. - [Uninsured Deposits](https://www.bankregreports.com/glossary/uninsured-deposits/): Uninsured deposits are balances above the $250,000 FDIC insurance limit. Because depositors stand to lose money if the bank fails, uninsured deposits are the most flight-prone funding, the fuel of the 2023 bank runs. - [HTM Unrealized Losses](https://www.bankregreports.com/glossary/htm-unrealized-losses/): HTM unrealized losses are the gap between the amortized-cost carrying value of a bank's held-to-maturity securities and their lower current market value. The loss is disclosed but not recognized on the balance sheet, a hidden hit to economic capital. ## About this document This is the markdown twin of the page named in `canonical_url` above. Source filings are public record; the cleaning, normalization, cross-source linkage, and derived metrics are BankRegReports' own. Attribute with a link to the canonical URL. Markdown twins are published for editorial content only. Institution data pages do not have them. For data at scale use the API, which is documented at https://www.bankregreports.com/api/ and specified at https://www.bankregreports.com/openapi.json. It returns typed JSON with explicit units and periods, and one call replaces hundreds of page fetches. ## Sitemap - [Glossary](https://www.bankregreports.com/glossary/): every metric, with formula and thresholds - [Blog](https://www.bankregreports.com/blog/): analysis and explainers - [API documentation](https://www.bankregreports.com/api/): the programmatic way to get this data - [XML sitemap](https://www.bankregreports.com/sitemap.xml): the complete crawlable index