Over the past 10 years, Jeremy Grantham returned 311.3% compared to 250.7% for the S&P 500 — outperformed the S&P 500 by 60.6%.
25.7%
S&P 500: 21.9%
42.7%
S&P 500: 68.9%
33.2%
S&P 500: 71.7%
311.3%
S&P 500: 250.7%