Jim Simons

James Harris Simons is an American mathematician, billionaire hedge fund manager, and philanthropist. He is the founder of Renaissance Technologies, a hedge fund based in Setauket-East Setauket, New York. He and his fund are known to be quantitative investors, using mathematical models and algorithms to make investment gains from market inefficiencies. Due to the long-term aggregate investment returns of Renaissance and its Medallion Fund, Simons is described as the "greatest investor on Wall Street," and more specifically "the most successful hedge fund manager of all time." As reported by Forbes, his net worth is estimated to be $23.5 billion, making him the 24th-richest person in the United States.