Peter Lynch is an American investor, mutual fund manager, author and philanthropist. As the manager of the Magellan Fund at Fidelity Investments between 1977 and 1990, Lynch averaged a 29.2% annual return, consistently outperforming S&P 500 stock market index and making it the best-performing mutual fund in the world. During his 13-year tenure, assets under management increased from US$18 million to $14 billion.