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📊 A '''financial ratio''' is a quantitative metric derived from an insurer's financial statements that enables analysts, regulators, investors, and management to evaluate the company's profitability, solvency, liquidity, operational efficiency, or reserve adequacy in a standardized and comparable manner. The insurance industry relies on a distinct set of ratios — many without direct analogs in other sectors — because the nature of the business, which involves collecting [[Definition:Premium | premiums]] today against uncertain future [[Definition:Claims | claims]], demands specialized measures of financial health. Key examples include the [[Definition:Loss ratio | loss ratio]], [[Definition:Expense ratio | expense ratio]], [[Definition:Combined ratio | combined ratio]], [[Definition:Return on equity (ROE) | return on equity]], and the [[Definition:Investment yield | investment yield]], each illuminating a different dimension of performance.

⚙️ Calculation methodologies and the weight assigned to particular ratios vary across markets and regulatory regimes. The combined ratio — the sum of the loss ratio and expense ratio — is the most widely cited profitability metric for [[Definition:Property and casualty insurance | non-life]] insurers worldwide: a combined ratio below 100% indicates an [[Definition:Underwriting profit | underwriting profit]], while a figure above 100% means the insurer is paying out more in losses and expenses than it earns in premiums. For [[Definition:Life insurance | life insurers]], metrics like embedded value ratios and new business margins serve analogous purposes. Regulators deploy their own ratio frameworks: the [[Definition:National Association of Insurance Commissioners (NAIC) | NAIC]]'s Insurance Regulatory Information System (IRIS) uses a battery of ratios to flag potentially troubled companies, while [[Definition:Solvency II | Solvency II]] jurisdictions focus on the solvency coverage ratio. [[Definition:Credit rating | Rating agencies]] such as A.M. Best, S&P, and Moody's incorporate proprietary ratio analysis into their evaluations of insurer financial strength.

🔎 Beyond regulatory and rating agency usage, financial ratios are indispensable for internal management and strategic decision-making. [[Definition:Underwriting | Underwriters]] track loss ratios at the line-of-business and portfolio level to identify deteriorating segments; chief financial officers monitor reserve development ratios to detect deficiencies or redundancies in [[Definition:Loss reserves | reserves]]; and investors compare ratios across peer groups to allocate capital. The advent of [[Definition:Insurtech | insurtech]] and advanced data analytics has enabled more granular ratio analysis — down to individual program, distribution partner, or geographic segment — providing earlier warning signals than aggregate figures alone. However, ratios must always be interpreted in context: differences in [[Definition:Accounting policy | accounting standards]] (such as [[Definition:IFRS 17 | IFRS 17]] versus [[Definition:US GAAP | US GAAP]]), business mix, and geographic concentration can make superficially similar numbers reflect very different underlying realities.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Combined ratio]]
* [[Definition:Loss ratio]]
* [[Definition:Expense ratio]]
* [[Definition:Solvency ratio]]
* [[Definition:Return on equity (ROE)]]
* [[Definition:Loss reserves]]
{{Div col end}}

Definition:Financial ratio - Revision history

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