Direct Answer
10 SEC filers are classified under the Standard Industrial Classification code that describes the life insurance industry, and their latest annual reports show $204.7 billion of combined revenue and a median operating margin of 8.0%. Investors should still evaluate its revenue model, industry-specific KPIs, valuation framework and the risks that can change the group's economics.
Industry Overview
Life insurers sell protection and savings products, collecting premiums and investing them to pay benefits decades later. Profit comes from mortality, expense and investment margins, with credit and rate risk on the investment side. The first numbers to compare across companies here are new business premiums, investment spread and mortality experience.
Key Industry Metrics
- New business premiums: Premiums from newly sold policies. They show growth in the business and follow sales force, pricing and demand for protection.
- Investment spread: Difference between earnings on invested premiums and the rates credited to customers. It narrows when yields fall.
- Mortality experience: Actual deaths and claims compared with those assumed in pricing. Better outcomes add profit, and worse ones strain reserves.
- Persistency: Share of policies that stay in force rather than lapse. High persistency lets insurers recover acquisition costs over time.
- Risk-based capital: Capital held relative to risk under regulatory rules. It shows the buffer for losses and constrains dividends.
Primary Macro Drivers
- Interest rates and credit spreads: Rates and credit spreads set investment returns on premiums, so they shape the investment spread and pricing of products.
- Demographics and demand for protection: More households needing protection and savings lift new business premiums, so population and income trends matter.
- Mortality trends: Changes in death rates affect benefit payments, shown in mortality experience against pricing.
- Capital rules: Rules on reserves and risk-based capital set how much capital backs policies, influencing pricing and capital release.
Major Risks
- Credit losses: Defaults and downgrades cut investment income and capital. Watch impairments, credit mix and risk-based capital.
- Interest rate shifts: Rate changes shift reinvestment yields and asset value, changing spread. Watch investment spread and interest rate sensitivity.
- Mortality surprises: More deaths than priced for, from events or poor selection, raise claims. Watch mortality experience and reserve changes.
- Policyholder behavior: Holders who lapse or surrender in different patterns than assumed change profitability. Watch persistency and surrender experience.
Industry Characteristics
| Characteristic | Profile |
|---|---|
| Cyclicality | Defensive |
| Capital Intensity | High |
| Regulatory Intensity | High |
| Industry Maturity | Mature |
| Geographic Importance | U.S. |
Life Insurance Filers in the SEC Record
10 companies with annual reports in the dataset are classified by the SEC in the Standard Industrial Classification code 6311. Their latest fiscal years end between 2024 and 2025, and together they reported $204.7 billion of revenue. Median revenue growth over the prior year was 4.0%. Median operating margin was 8.0% and median net margin 5.0%. Median total liabilities were 93% of total assets, and 7 of 9 reported a profit in their latest year.
| Company | Revenue | Growth | Operating margin | Net margin | Year |
|---|---|---|---|---|---|
| Metlife Inc | $77.1 billion | 8.6% | 8.0% | 4.1% | FY 2025 |
| Prudential Financial Inc | $60.8 billion | -13.7% | n/a | 5.9% | FY 2025 |
| Reinsurance Group Of America Inc | $23.7 billion | 7.2% | n/a | 5.0% | FY 2025 |
| Corebridge Financial, Inc. | $18.5 billion | -1.2% | n/a | -2.0% | FY 2025 |
| Voya Financial, Inc. | $8.2 billion | 1.7% | 12.7% | 8.0% | FY 2025 |
| Brighthouse Financial, Inc. | $6.8 billion | 43.2% | n/a | 4.9% | FY 2025 |
| Globe Life Inc. | $6.0 billion | 3.7% | n/a | 19.4% | FY 2025 |
| Primerica, Inc. | $3.3 billion | 6.6% | n/a | 22.8% | FY 2025 |
The 8 largest of 10 by revenue. Source: each company's own annual report as filed with the SEC (XBRL data), figures in U.S. dollars. A company's SIC code reflects its main business as the SEC records it, so it can differ from how an index provider or analyst classifies the company, and a diversified group appears under only one code.
How Life Insurance companies make money
Life insurance companies make money primarily through two interrelated streams: underwriting income and investment income. On the underwriting side, a company charges policyholders a premium that is priced to exceed expected claims and expenses. Profit arises when actual mortality, morbidity, and lapse experience is more favorable than the assumptions priced into the policy.
The investment side is equally important. Because life policies often run for decades, insurers accumulate large reserves and reinvest those reserves in bonds, private credit, real estate, and equities. The spread between the yield earned on invested assets and the crediting rate owed to policyholders or used to fund policyholder benefits is a persistent earnings driver. That is why interest-rate sensitivity is so high in this industry: a sustained drop in rates compresses the investment margin, while a rise can both help new-money yields and create disintermediation pressure if policyholders surrender or borrow against their contracts.
Additional revenue comes from fee-based products such as variable annuities and fee-only indexed products, as well as group benefits lines where the insurer acts more like an administrator than a risk-taker on long-duration liabilities.
Understanding the key metrics
Combined ratio
The combined ratio (loss ratio plus expense ratio) measures underwriting profitability as a share of premiums earned. A ratio below 100% signals underwriting profit; above 100% means the company is paying out more in claims and expenses than it collects in premiums and relies on investment income to be profitable overall.
Loss ratio
Claims and benefits paid divided by premiums earned. A rising loss ratio may reflect adverse mortality or morbidity experience, competitive underpricing, or deterioration in the policyholder base.
Expense ratio
Operating expenses divided by premiums earned. High expense ratios can reflect heavy distribution costs, IT investment, or operating leverage problems. Distribution-heavy models (agents, banks) often carry structurally higher expense ratios than direct-to-consumer platforms.
Premium growth
New and renewal premium trends indicate demand, pricing power, and competitive position. Investors should separate in-force growth (existing policies growing in value) from new business sales and lapse rates.
Book value per share
For life insurers, book value integrates the statutory balance sheet, unrealized gains and losses on the investment portfolio, and deferred acquisition costs. Moves in interest rates can drive large swings in GAAP book value through accumulated other comprehensive income.
Reserve development
Prior-period reserve development shows whether earlier loss estimates were accurate. Favorable development (reserves released) boosts current-period earnings; adverse development consumes them. Consistent adverse development suggests pricing or reserving discipline problems.
Investment yield
The yield on invested assets relative to the liability crediting rate is the core investment spread. Falling rates compress this margin; rising rates help new-money yields but can take years to work through a portfolio of long-duration fixed-income assets.
Valuation framework
Life insurance stocks are commonly valued on price-to-book (P/B) and price-to-earnings (P/E). Embedded value (EV) metrics, which attempt to capture the present value of profits already in force plus adjusted net assets, are more common in international markets but provide useful comparisons. Companies with high-quality distribution, durable spread businesses, and disciplined underwriting tend to trade at premium multiples. Rate-sensitive balance sheets or concentrated alternative investment exposure can depress multiples during periods of rate uncertainty.
Competitive structure
Life insurance is a capital-intensive, distribution-driven industry. Barriers include regulatory capital requirements, actuarial expertise, relationships with independent agents and banks, and brand trust. Technology is beginning to compress some barriers in term life and direct digital channels, but agent relationships, bank partnerships, and employer group benefits remain durable distribution moats for established carriers.
Bull case
The bull case centers on favorable demographics (aging populations increasing demand for life, annuity, and long-term care products), a rising interest rate environment that expands spread income, and disciplined underwriting that keeps loss ratios in check. Consolidation can also allow stronger operators to acquire blocks of business at attractive embedded value multiples. A sustained higher-rate regime is the single largest positive structural development for the industry in a generation.
Bear case
The bear case involves prolonged low or falling interest rates that compress investment spreads, adverse mortality or morbidity trends (as seen during the COVID-19 pandemic), rapid policyholder disintermediation if rate alternatives become attractive, and regulatory capital changes that constrain distribution to shareholders. A credit cycle downturn can also hurt investment portfolios that have shifted toward higher-yielding but less liquid private credit and alternatives.
What to monitor
Track these metrics to stay ahead of material changes in industry fundamentals:
- New business sales and annualized premium equivalent trends by product line
- In-force policy lapse rates and surrender activity
- Net interest margin and new-money yield on invested assets
- Unrealized gain/loss position and interest-rate sensitivity of the investment portfolio
- Loss ratio and claim experience versus pricing assumptions
- Reserve development disclosures in filings
- Capital adequacy ratios (risk-based capital, Solvency II or equivalent)
- Dividend and share buyback sustainability relative to statutory earnings
- Alternative investment allocation and credit quality of the fixed-income portfolio
- Regulatory changes affecting reserve requirements or product design
Where to Go Next
The Life Insurance guide describes how the industry earns money, what to measure and what can go wrong. To see how it compares, read the neighbouring industries in the same sector, then apply the same checks to a specific company.
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Frequently Asked Questions
What are the main KPIs for the Life Insurance industry?
Key performance indicators for the Life Insurance industry include: New business premiums, Investment spread, Mortality experience, Persistency, Risk-based capital. Which matter most depends on the company's model, so compare them across several companies rather than relying on one.
How cyclical is the Life Insurance industry?
The Life Insurance industry is generally defensive, meaning demand tends to remain relatively stable regardless of the economic cycle. Companies in this space can provide portfolio stability during recessions, though growth may lag in strong expansions.
What are the biggest risks in the Life Insurance industry?
The primary risks for Life Insurance companies include: Credit losses, Interest rate shifts, Mortality surprises, Policyholder behavior. Investors should assess each company's exposure to these factors and its track record of navigating them.
How do interest rates affect life insurance stocks?
Rising rates generally help life insurers over time by improving investment yields on newly invested assets, but the transition period is complex. Existing long-duration bond portfolios lose market value when rates rise, pressuring GAAP book value through accumulated other comprehensive income. Sustained higher rates, however, allow portfolios to reinvest at higher yields, expanding the spread between earned and credited rates.
What is embedded value in life insurance?
Embedded value is an actuarial estimate of the economic value of an insurance company. It typically combines adjusted net assets with the present value of future profits expected from policies already in force, discounted at a risk-appropriate rate. Embedded value is useful for comparing franchise value across carriers but depends heavily on actuarial assumptions for mortality, lapses, expenses, and discount rates.
Why do life insurers hold so many bonds?
Life insurance liabilities are long-duration and relatively predictable. Long-duration bonds provide a natural asset-liability match, locking in a spread between earned yield and the credited rate promised to policyholders. Regulatory frameworks in most markets also favor investment-grade fixed-income for statutory capital purposes, reinforcing the structural preference for bonds over equities in life company investment portfolios.