Over the past 10 years, Bill Gates returned 149.5% compared to 248.8% for the S&P 500 — underperformed the S&P 500 by 99.2%.
15.9%
S&P 500: 12.2%
16.5%
S&P 500: 71.4%
31.2%
S&P 500: 61.4%
149.5%
S&P 500: 248.8%