Over the past 10 years, Guy Spier returned 396.4% compared to 257.4% for the S&P 500 — outperformed the S&P 500 by 139.0%.
32.8%
S&P 500: 15.0%
126.2%
S&P 500: 81.3%
122.2%
S&P 500: 79.5%
396.4%
S&P 500: 257.4%