Over the past 10 years, Mario Gabelli returned 150.9% compared to 257.4% for the S&P 500 — underperformed the S&P 500 by 106.5%.
12.8%
S&P 500: 15.0%
48.8%
S&P 500: 81.3%
57.3%
S&P 500: 79.5%
150.9%
S&P 500: 257.4%