The story
Founded by David Siegel and John Overdeck in 2001.1
Private company
Logo: SeekVectorLogo.com, Public domain, via Wikimedia Commons3
American hedge fund management firm
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.2 It was founded by John Overdeck and David Siegel.1 Wikipedia text CC BY-SA 4.0
Last updated Oct 21, 2026.
See how the biggest companies compare on our leaderboards

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.2
Two Sigma sits at the top of its group. 3 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.
Built from subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.
Founded by David Siegel and John Overdeck in 2001.1
Who has led Two Sigma, and when. Pick a name to see everywhere that person has worked.
Listed on Wikidata.1
From Wikidata.1
The numbers on this page point here. Each one links to the record it came from.