thinkorswim, earned 4.9 stars, the top score, in the category "Trading Technology", and was rated #1 overall online broker in Barron's ranking of online brokers, 3/15/2010. thinkorswim was evaluated versus others in eight total categories, including trade experience, trading technology, usability, range of offerings, research amenities, portfolio analysis and reporting, customer service and education and costs. thinkorswim topped the list in 2006, 2007, 2009, and 2010 with the highest weighted-average score. thinkorswim brokerage, with its Investools division, is an American company offering live and online investor education services. In addition, through its brokerage subsidiary, thinkorswim, Inc., Investools provides services to funded trading accounts for self-directed option traders and institutional users who invest in equities, exchange-traded funds, futures, mutual funds and bonds. Subsidiary thinkorswim, Inc. is a brokerage firm registered with FINRA, a self-regulatory body.