
Founded by Jim Simons
Source: RENAISSANCE TECHNOLOGIES LLC's Form 13F for Q2 2026. A 13F lists long positions in US-listed securities only, valued at the quarter's close; cash, short sales and foreign shares are not in it. Lines without a ticker are kept as filed. Weights are shares of everything the 13F reports, options included at their underlying's value as filed, so a large put or call can outweigh every stock line.