Over the past 10 years, PRIMECAP Management returned 332.7% compared to 259.4% for the S&P 500 — outperformed the S&P 500 by 73.4%.
37.9%
S&P 500: 13.0%
109.5%
S&P 500: 85.6%
91.8%
S&P 500: 67.8%
332.7%
S&P 500: 259.4%