Founded in 1999 by Tom Sosnoff and Scott Sheridan, Thinkorswim Group Inc. was a brokerage firm that revolutionized the retail trading industry by providing individual investors with sophisticated tools, data, and educational resources previously accessible only to institutional traders. The company was renowned for its powerful "thinkorswim" trading platform, which specialized in complex options analysis and strategy modeling. In 2009, the company was acquired by TD Ameritrade, which integrated the platform as its premier offering for active traders. Following the acquisition of TD Ameritrade by Charles Schwab in 2020, thinkorswim has been integrated into the Schwab ecosystem and continues to be a leading platform for serious, self-directed investors and traders.

Founded in

United States