TD Ameritrade Holding Corp. engages in the provision of securities brokerage services and related technology-based financial services. It offers the following products and services to retail clients: touch-tone trading, trading over the internet, unlimited streaming, free real-time quotes, extended trading hours, direct access to market destinations and commitment ton the speed of order execution. The company was founded by John Joe Ricketts in 1971 and is headquartered in Omaha, NE.