Jim Simons: Founder of Renaissance Technologies
Business Owner · Hedge Funds & Investing
Mathematician Jim Simons founded Renaissance Technologies and its Medallion Fund, using quantitative models to become known as the most successful hedge fund manager of all time.
About Jim Simons: Founder of Renaissance Technologies
James Harris Simons (April 25, 1938 to May 10, 2024) was an American hedge fund manager, investor, mathematician and philanthropist, the founder of Renaissance Technologies, a quantitative hedge fund based in East Setauket, New York. At the time of his death his net worth was estimated at $31.4 billion, making him the 55th-richest person in the world. He and his fund are known for quantitative investing, using mathematical models and algorithms to make gains from market inefficiencies, and because of the long-term returns of Renaissance and its Medallion Fund he was called the "greatest investor on Wall Street" and "the most successful hedge fund manager of all time". Before finance, Simons developed the Chern-Simons form with Shiing-Shen Chern and contributed to string theory by providing a theoretical framework combining geometry and topology with quantum field theory. In 1994 he and his wife, Marilyn, founded the Simons Foundation to support research in mathematics and the fundamental sciences; it is the top benefactor of Stony Brook University, Marilyn's alma mater, and a major contributor to his own alma maters, MIT and UC Berkeley. Simons served on the boards of the Stony Brook Foundation, the MIT Corporation and the Simons Laufer Mathematical Sciences Institute in Berkeley. Sources: English Wikipedia (Jim Simons, accessed September 2026).
Basic Information
Founder, Renaissance Technologies (1938-2024)
Company Details
Renaissance Technologies
Quantitative Hedge Funds, Mathematics Philanthropy