About Us

Electronic trading platforms have transformed the world’s securities market structures. Two Sigma Securities is dedicated to understanding market microstructure, executing trades, and making markets more efficient by way of systematic precision and scientific rigor.

Founded in 2009, Two Sigma Securities is a broker-dealer registered with the SEC, a member of the major U.S. equity exchanges, and a registered market maker in over 8,000 U.S. exchange listed equities. Our high-performance, proprietary platform regularly facilitates the execution of more than 300 million shares per day. We apply leading-edge technology to the data-rich world of finance. Our disciplined, process-driven, systematic approach harnesses technical engineering, risk management, and execution measurement to enable us to be a leader in the wholesale market making space.

At Two Sigma Securities, we have made it our mission to identify our clients’ expectations and to strive to exceed them. Access FINRA’s BrokerCheck to check the background on our firm and our associated registered persons.

To access SEC 605 and 606 statistics, please click here. To access supplemental execution quality statistics using a methodology developed with the Financial Information Forum, please click here.

Two Sigma Securities, LLC is a member of FINRA and SIPC.