Jim Simons, Math Genius Who Conquered Wall Street, Dies at 86
Using advanced computers, he went from M.I.T. professor to multibillionaire. His Medallion fund had 66 percent average annual returns for decades.
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By the time he retired as chief executive of the business in 2010, Mr. Simons was worth $11 billion (almost $16 billion in today’s currency), and a decade later his fortune had doubled. While he continued to oversee his funds as Renaissance chairman, Mr. Simons increasingly devoted his time and wealth to philanthropy.
Also
A chain-smoker, he refused to put out his cigarettes in offices or at conferences and willingly paid fines instead.
