tradingkey.logo
avatar

James Simons

Renaissance Technologies LLC

James Simons, along with a team of mathematicians, physicists, and computer scientists, founded Renaissance Technologies LLC — arguably the best quantitative investment company. Its flagship Medallion Fund has delivered an average annual return of over 66% since 1988.

Shares Held
Asset Size
% Top 10
5387
$76.42B
11.36%
Latest2025Q3
Top BuysOPEN (US)
Top SellsITUB (US)
KeyAI