S&P 500 vs total market

500 — Companies in the S&P 500 index — large-cap US companies only 3,700+ — Companies in the total US stock market index including small and mid-cap 82% — Percentage of total US market value represented by the S&P 500 0.1% — Annual performance difference over 30 years — S&P 500 leads by just 0.1%/yr…