Over the past 10 years, Guy Spier returned 400.6% compared to 260.9% for the S&P 500 — outperformed the S&P 500 by 139.7%.
35.2%
S&P 500: 16.2%
110.2%
S&P 500: 71.2%
117.9%
S&P 500: 71.1%
400.6%
S&P 500: 260.9%