Below are four top-performing mutual funds that are managed by professional stock-pickers, yet charge below-average fees.

Each invests primarily in large U.S. companies, the types of stocks that typically anchor a well-diversified portfolio. Each has outperformed a large-cap stock index, the Russell 1000, over the latest 5- and 10-year periods. The funds have accomplished that while charging fees that are below 0.74 percent. That’s the average expense ratio that investors paid last year to invest in U.S. stock funds of all types, managed and index, according to Morningstar.