The headline performance of the S&P 500 in 2025 masks significant divergence beneath the surface. While a handful of sectors delivered outsized gains, others lagged far behind, reflecting shifting investor capital and evolving macro conditions. This analysis breaks down where the market’s momentum came from last year and explores which sectors could step into the spotlight in 2026. Examining these underlying trends offers valuable context beyond the headline return.

The performance of the S&P 500 is often presented in the media as a single number. But 2025 was a textbook example of just how misleading it can be to focus only on aggregate returns. According to the official statistics, the S&P 500 ended 2025 with a return of 16.39%. You can read in the media that the return was as high as around 18%, which is a distortion created by the performance measurement methodology.

The market went through a significant drop in April and then an even more significant rise. The S&P 500 Index was able…