AMERICAN INTERNATIONAL GROUP, INC. (AIG)
American International Group, Inc. (AIG) is a multinational insurance and financial services company providing property and casualty insurance, life insurance, and retirement solutions to individuals and businesses globally. The company operates across multiple business segments serving commercial, personal, and institutional customers.
What the company does
American International Group operates as a diversified global insurance holding company. Its primary business lines include property and casualty insurance (covering commercial and personal risks such as general liability, workers’ compensation, and auto insurance), life insurance products, and retirement services. The company distributes these products through brokers, direct channels, and institutional relationships, serving customers across more than 80 countries.
The company’s property and casualty operations address complex risk exposures for large commercial enterprises, middle-market businesses, and individuals. Life insurance and retirement solutions serve individuals seeking protection and income planning. This product diversification means AIG derives revenue from insurance premiums, investment income, and fees across multiple business units rather than concentrating in a single line.
How it makes money
Like other insurance companies, AIG’s core revenue comes from underwriting—collecting premiums for assuming insured risks—and from investing the float (premiums collected but not yet paid out in claims). Underwriting profit depends on accurate risk assessment and disciplined claims management. Investment income flows from the substantial cash reserves held to cover future claims; AIG maintains significant bond and equity portfolios.
The company also earns fees from its retirement services business, where it manages savings products and retirement accounts. Investment income comprises a meaningful portion of total earnings; shifts in interest rates, credit spreads, and asset valuations directly impact results.
Profitability relies on the fundamental insurance principle: collecting more in premiums than is paid out in claims and expenses. This requires sound underwriting discipline and appropriate pricing of risk. During economic downturns or after major insured loss events (natural disasters, industrial accidents), claims expenses rise and underwriting results deteriorate.
Where it sits in its industry
AIG ranks among the world’s largest insurance companies by scale, competing with firms like Berkshire Hathaway’s insurance operations, Munich Re, Swiss Re, and other diversified insurance conglomerates. The global insurance market remains highly fragmented; no single player dominates completely. AIG competes across multiple segments: commercial P&C (against specialists and global carriers), personal lines (against regional and national insurers), and retirement solutions (against life insurers and asset managers).
The company’s scale provides advantages—capital to assume large risks, geographic diversification across premium sources, and resources for technology and distribution. However, insurance remains capital-intensive and cyclical, with competitive intensity rising during soft market periods when premium rates fall across the industry. AIG, like peers, must navigate regulatory requirements across jurisdictions, reserve adequacy, and investment strategy to maintain solvency and generate returns for equity holders.
History and transformation
American International Group was founded in 1919 and grew to global prominence over decades, particularly through its international underwriting and financial services expansion. The company faced severe financial stress during the 2008 financial crisis when concentrated exposure to mortgage-backed securities and credit derivatives created massive losses. Federal intervention via a substantial government bailout occurred to prevent systemic failure (a notable case in discussions about systemic risk and moral hazard).
Post-crisis, AIG underwent significant restructuring—spinning off units, exiting businesses, and rebuilding capital and credibility. The company divested major operations (including its aircraft-leasing unit, insurance brokerages, and other non-core businesses) to focus on its insurance-and-retirement core. This divestiture program substantially reduced assets and complexity while improving operational focus.
How to research it
Start with SEC filings—AIG’s 10-K annual report and 10-Q quarterly filings contain detailed breakdowns of underwriting results by business segment, investment portfolio composition, claims reserves, regulatory capital metrics, and management discussion of strategic initiatives and risk factors. The company’s investor relations website provides earnings release transcripts and investor presentations.
Review industry analysis from insurers’ research specialists and agencies that rate insurers’ financial strength (AM Best, Moody’s, S&P). Understand key metrics: combined ratio (claims and expenses divided by premiums—below 100% indicates underwriting profit), return on equity, book value per share, and solvency/capital ratios. Competitive and regulatory developments (insurance licensing, capital requirements, premium rate environment) affect the business. Track quarterly earnings results to monitor underwriting profitability, reserve adequacy, and investment portfolio performance.