Hartford Funds: 48% of S&P 500 best days occurred in bear markets

The S&P 500 is up 14% as of October 13, 2026, yet Hartford Funds data indicates that 48% of the index's best trading days between 1996 and 2025 occurred during bear markets. This finding challenges the common investor impulse to sell during downturns, suggesting that panic selling often results in missing the most significant recovery gains.

A bear market is defined as a decline of 20% or more from a recent high. While the current rally has provided a buffer, macroeconomic pressures persist. Inflation remains stubborn, U.S. households falling behind on loan obligations are at their highest levels since 2010, and U.S. debt levels sit above $40 trillion. These factors contribute to investor anxiety about potential pullbacks, even in a year that has seen strong performance.

Historical data from Hartford Funds shows a clear distribution of high-return days across market cycles. Beyond the 48% of best days found in bear markets, 28% occurred during the first two months of a bull market. The remaining 24% of best days happened during the rest of the bull market. This distribution highlights that significant upside potential is not limited to extended growth periods but is frequently present during periods of market stress.

The financial cost of missing these peak days is substantial. A $10,000 investment in the S&P 500 in 1996 would have grown to $192,167 by the end of 2025. However, missing just the 10 best days would have reduced that value by 56% to $85,490. The impact worsens with each additional missed day; missing the 20 best days would have resulted in a return of $49,551, while missing the 30 best days would have left an investor with only $31,123.

To mitigate the risk of knee-jerk selling, successful investors often construct portfolios centered on high-conviction stocks. A portfolio filled with speculative positions is more vulnerable to panic selling during downturns. In contrast, holding stocks that investors are comfortable buying more of if prices drop provides a psychological and financial anchor. This approach aligns with advice offered by Warren Buffett in a 1996 Berkshire Hathaway shareholder letter: "If you aren't willing to own a stock for ten years, don't even think about owning it for ten minutes." While specific stock selections vary based on individual goals and risk tolerance, the underlying principle remains focused on long-term conviction rather than short-term market noise.