Two Sigma

Two Sigma Investments, LP
Company typePrivate
IndustryHedge fund
Founded2001 (2001)
Founders
HeadquartersNew York City, U.S.
ProductsHedge fund
AUMUS$70 billion (2025)
Number of employees
c. 2,000 (2026)
Websitetwosigma.com

Two Sigma Investments, LP is an American hedge fund headquartered in New York City. It uses a variety of technological methods, including artificial intelligence, machine learning, and distributed computing, for its trading strategies. The firm was run by John Overdeck and David Siegel until August 2024.