Over the past 10 years, Bill Gates returned 152.2% compared to 245.0% for the S&P 500 — underperformed the S&P 500 by 92.8%.
11.9%
S&P 500: 17.7%
13.0%
S&P 500: 63.6%
31.3%
S&P 500: 70.3%
152.2%
S&P 500: 245.0%