economy
The last century was great for U.S. stocks, but the next decade might be challenging, says investing chief
High valuations and narrow concentration could present challenges for the S&P 500 moving forward, one expert says.

TL;DR
- U.S. stocks averaged a 10.1% annual return from 1926-2025, significantly outperforming Treasurys and inflation.
- Experts predict lower returns for the S&P 500 in the next decade, citing high valuations and market concentration.
- The 'Magnificent Seven' tech stocks currently dominate the S&P 500, accounting for nearly 35% of the index.
- Diversifying globally and considering alternative weighting strategies could be beneficial for investors.
- Historically, broad diversification has been rewarded, with a few key stocks driving significant market returns over long periods.