Renaissance Technologies trimmed its Alphabet position in Q4 of 2025 by a big margin. That means the firm unloaded a position that was once worth close to $800 million. For a stock that gained 65% in ...

Jim Simons's Medallion Fund averaged 66% annual returns for three decades, using math that would make ChatGPT weep Jim Simons was trying to solve a puzzle. Billions of dollars fell out when he cracked ...

Jim Simons is arguably the world’s best investor. He founded Renaissance Technologies and, certainly, the firm's track record is enviable: 66% gross annual returns (before fees) since 1988 (and ...