Two Sigma

Two Sigma manages investments and conducts systematic trading using data science, machine learning and distributed computing. Its investment management business researches market signals, constructs portfolios and executes trades across diversified global strategies for clients. Two Sigma Securities provides liquidity in equity, futures and ETF markets, trades options, and offers clients wholesale market making, algorithmic trading services and a single-dealer platform.

Founded in 2001 by David Siegel and John Overdeck, both co-founders and co-chairmen, Two Sigma combines investment research with engineering. Its researchers turn observations—from price movements to company news and retail activity—into predictive features, testing hypotheses rather than simply accumulating data. Its features research explores how large language models can generate additional textual datasets and reduce the work needed to investigate new signals. Internally, treating data as code brings version control, automated quality tests and reproducible processing to data pipelines.

The firm's proprietary data management system draws on more than 10,000 data sources. Two Sigma Real Estate extends its approach to real estate private equity, combining investment professionals with data scientists to identify markets and test investment hypotheses, primarily across North America. In 2026, Solovis acquired Venn from Two Sigma, transferring the multi-asset portfolio analytics, modeling and scenario-analysis platform.