Over the past 10 years, Guy Spier returned 387.8% compared to 255.1% for the S&P 500 — outperformed the S&P 500 by 132.7%.
33.8%
S&P 500: 12.2%
125.7%
S&P 500: 79.5%
105.3%
S&P 500: 67.7%
387.8%
S&P 500: 255.1%