American mathematician and hedge fund manager — founder of Renaissance Technologies — whose Medallion Fund produced 66% annual returns before fees from 1988–2018 — the greatest investor in history by quantitative measure — who died in 2024.
Creates the quantitative hedge fund — Simons's application of mathematical pattern recognition to financial markets produced returns that no other fund manager has replicated; Renaissance Technologies is the most successful investment firm in history by any quantitative measure.
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