Long-Term Market Returns

The US stock market (S&P 500 and predecessors) has returned approximately 9.8% annually in nominal terms and 6.5–7% in real (inflation-adjusted) terms since the 1920s. European markets have averaged slightly lower. These figures span two world wars, multiple recessions, oil shocks, the dot-com bubble, and the 2008 financial crisis.

Stock markets trend upward because they represent ownership of real businesses that generate profits, reinvest capital, and grow over time. As the economy expands, corporate earnings grow. Over very long periods, this fundamental growth driver overwhelms short-term volatility and crises. Markets are also supported by population growth, innovation, and productivity gains.

Volatility is the price of long-term superior returns. Investors who accept higher short-term volatility (stocks vs bonds vs cash) are rewarded with higher long-term returns — this is the equity risk premium. The key danger of volatility is behavioral: it tempts investors to sell at bottoms. Investors who held through every major crash since 1900 consistently outperformed those who tried to time the market.

Missing the 10 best days of the S&P 500 in any 20-year period has historically halved returns compared to staying fully invested. Time in the market consistently beats timing the market across all major historical periods. The best days often cluster immediately after the worst days, meaning selling during crashes and waiting to re-enter is particularly costly.