Over the past 10 years, Jeremy Grantham returned 328.4% compared to 260.9% for the S&P 500 — outperformed the S&P 500 by 67.5%.
16.6%
S&P 500: 10.8%
61.6%
S&P 500: 78.9%
34.7%
S&P 500: 64.2%
328.4%
S&P 500: 260.9%