How Insurance Companies Turn Their Premiums Into Billions in Profit

Insurance companies generate billions in profits by investing customer premiums (known as 'float') before paying out claims. While aggressive investors like Berkshire Hathaway use this strategy to invest in stocks and companies, most insurers take conservative approaches. Progressive generated nearly $1 billion in investment income in Q1 2026 alone. However, this strategy carries risks during bear markets when investment values decline, making insurance stocks volatile during market downturns.