Jim Simons
Mathematician Who Built the Most Profitable Hedge Fund Ever
Jim Simons
Quantitative Trading
Key Stats
Net Worth
$28.1 Billion
Origin
American
Lifespan
Born 1938 (88 years old)
Biography
James Harris Simons is a mathematician and hedge fund manager who founded Renaissance Technologies, arguably the most successful hedge fund in history. His Medallion Fund has generated average annual returns of 66% before fees since 1988—an unprecedented track record.
From Academia to Trading
Simons was an award-winning mathematician who helped crack codes for the NSA during the Cold War. He chaired the mathematics department at Stony Brook University before founding Renaissance Technologies in 1982.
The Medallion Fund
Renaissance's flagship Medallion Fund is legendary:
- 66% average annual returns before fees (39% after)
- Has never had a losing year
- Uses purely quantitative strategies
- Employs mathematicians and scientists, not traditional traders
Quantitative Revolution
Simons pioneered the use of:
- Machine learning in trading
- Pattern recognition
- Statistical arbitrage
- High-frequency trading strategies
Trading Philosophy
"We don't start with models. We start with data. We don't have any theories. We look for things that can be replicated thousands of times."
Famous Trades
Multiple Markets
Medallion Fund has generated unmatched returns using quantitative strategies across markets.
Consistent Alpha
+66% annually
Legendary Quotes
"We don't start with models. We start with data."
"Past performance is the best predictor of future success."
"Great scientists are skeptical. Period."