MetLife Inc. (MET)

MetLife is a life insurance and employee benefits company operating at a global scale across more than 40 countries. It is one of the largest insurers in the world by premium income, and it ranks among the most extensively regulated financial institutions on Earth. The company’s business model is built on collecting premiums from millions of customers around the world in exchange for the promise to pay death claims, retirement income, disability benefits, and health coverage — a simple bargain made complex by the fact that every country where MetLife operates imposes its own solvency rules, reserve requirements, tax treatment, and investment restrictions.

A business built on geography and regulation

MetLife’s story is inseparable from the places it has chosen to operate. The company was born in New York in 1868, when it began selling industrial life insurance to working-class customers in the industrial northeast. Over more than a century, it expanded into a global enterprise, acquiring or organically growing insurance operations across the United States, Europe, Asia, and Latin America. Each market presented a different problem to solve: mortality curves vary by region, labor practices differ, tax codes diverge, and the regulatory relationship between insurers and government takes fundamentally different forms.

The geographic expansion was crucial to diversification. A company insuring only mortality in the United States would face enormous concentration risk — the ability to pay claims rests on a stable, actuarially predictable population, and catastrophes, changing life expectancy, or a severe economic downturn can all harm claims experience badly. By spreading its book of business across continents, MetLife lowered its dependency on any one nation’s economic cycle or demographic trend. When earnings in Europe softened, Asia might be strong. When US mortality deteriorated in a given year, the overall portfolio remained stable.

But geographic reach came at a cost. Operating in Japan, the United Kingdom, Mexico, and Chile demands separate management, compliance with divergent accounting rules, translation of products and underwriting standards, and the ability to navigate each country’s insurance regulator and its demands for policyholder protection. MetLife’s complexity — reported by geography, by product line, and by the overlay of regulatory capital requirements in each major market — is one of the defining characteristics of the business. It is also one of the sources of difficulty for investors trying to understand the consolidated results.

How MetLife makes money

MetLife’s revenue comes primarily from premiums paid by customers and the returns on the investments it makes with the accumulated premiums. The company collects premiums for life insurance (death benefits), annuities (retirement income), disability insurance, and accident and health coverage. It then invests that premium income — as required by its business model — in bonds, stocks, mortgages, and other instruments, and the returns on those investments are a second source of earnings.

The fundamental tension in insurance is the float: MetLife collects a premium today and may not pay a claim for decades, or may never pay it if the policyholder lasts longer than expected. The time between collection and payment, and the spread between the yield on invested premiums and the rate paid to customers, is what generates underwriting profit. If MetLife prices its insurance products correctly — charging enough to cover expected claims, expenses, and mortality variation — the premiums and investment returns combine to produce a profit. If it prices too low, claims overwhelm premiums and the invested float earns only a loss.

The company’s major product lines are life insurance (protecting against untimely death), annuities (converting savings into guaranteed income during retirement), and employee benefits including group health and disability. The employee benefits business is particularly important: companies with large payrolls use insurers like MetLife as administrators and risk carriers for the benefits they offer their workers. In the United States, which has no universal health insurance, employer-provided health plans are one of the primary ways people get coverage, and MetLife is a major administrator of those plans.

Structural pressures and the long interest-rate cycle

MetLife’s profitability depends partly on things the company controls — underwriting discipline, expense management, reserving conservatism — and partly on things it does not. Interest rates are the most powerful. MetLife invests premiums in bonds, and falling interest rates reduce the yield the company can earn, putting pressure on investment income. Rising rates can pinch the value of existing bond portfolios on the balance sheet, creating accounting losses if the bonds must be marked to fair value. At the same time, falling rates tend to increase the value of in-force life insurance — people live longer when times are economically stable — while rising rates create new underwriting challenges through higher claims.

Life expectancy is another structural pressure. Over the past century, people in developed countries have lived steadily longer, and that trend has been net-negative for life insurers: they collect premiums based on historical mortality assumptions, and when people live longer than assumed, claims come in larger. MetLife and its peers have had to adjust pricing and underwriting continuously to account for the decline in mortality. Pandemics, conversely, created a temporary but severe adverse experience: excess mortality in 2020 and 2021 harmed life insurers’ results across the board.

Regulation of solvency is structural too. MetLife is not allowed to simply invest premiums as it sees fit; regulators in each country impose risk-based capital requirements and reserve rules that dictate how much capital the insurer must hold relative to its written business. These requirements vary by country and by product line, and they can change — regulators have strengthened capital rules significantly since the 2008 financial crisis. When capital requirements tighten, MetLife may have to retain more earnings, reduce dividends, or write less business.

Competition and market structure

MetLife competes in life insurance against large diversified competitors like Prudential and Transamerica, against smaller specialist insurers, and in some markets against mutual insurers that do not have public shareholders. In annuities, it competes against insurance companies and against the mutual fund and brokerage industry — many retirees buy variable annuities (which tie payouts to investment returns) and fixed annuities directly from MetLife and its competitors. Employee benefits is a concentrated market; MetLife, Cigna, UnitedHealth, Anthem, and a few others dominate the administration of group health and disability for large employers.

The fundamental nature of insurance competition is unusual: MetLife does not compete primarily on features or price alone. It competes on brand trust, claims-paying reputation, the breadth of product lines, financial strength (critical for a company that must pay claims decades hence), and the ability to navigate regulation. A customer buying a life insurance policy is making a bet that the company will still be solvent in 50 years; that changes how pricing works. MetLife’s long history and global scale are competitive assets in themselves.

How to research MetLife

MetLife files a detailed annual 10-K (SEC CIK 0001099219) that breaks the business down by geography and product line, explains the regulatory environment in each major market, and discusses capital adequacy. The quarterly earnings calls provide color on product mix, claims experience, and management’s view of the interest-rate outlook. Key metrics to track are the combined ratio for insurance underwriting (premiums earned relative to claims and expenses), investment yield (the rate earned on the bond portfolio), and regulatory capital ratios (the strength of the balance sheet). For a long-term holder, MetLife’s dividend and the company’s ability to sustain and grow it through interest-rate and claims cycles are the measure of management’s confidence in the durability of the business.