TradeStation Group Reports Monthly Business Metrics Plantation FL, March 4, 2009 –TradeStation Group, Inc. (NASDAQ GS: TRAD) today reported the following business metrics for the month ended February 28, 2009:   • 107,354 Daily Average Revenue Trades (DARTs)   • Total client assets of $1.6 billion (as of February 28, 2009)   • Average equities client credit balances of $690 million   • Average equities client margin balances of $31 million Year over year, TradeStation’s DARTs increased 4%, total client assets decreased 5%, average equities client credit balances increased 16%, and average equities client margin balances decreased 64%.   Below in tabular format are year-over-year comparisons of those metrics on both a monthly and quarterly basis: TradeStation Securities Business Metrics   Feb-09 Feb-08 Feb-09 vs. Feb-08 Q1-09 QTD* Qtr Ended 3/31/08 Q1-09 QTD* vs. Qtr Ended 3/31/08 Trading Days 19.0 20.0 N.M. 39.0 61.0 N.M. Daily Average Revenue Trades (DARTs) 107,354 103,453 4% 104,945 109,219 -4% Total Client Assets ($MM), end of period $1,606 $1,696 -5% $1,606 $1,676 -4% Average Equities Client Credit Balances ($MM) $690 $595 16% $680 $592 15% Average Equities Client Margin Balances ($MM) $31 $85 -64% $31 $88 -65% *Q1-09 quarter-to-date (QTD) means results for the two-month period ended February 28, 2009. Additional information regarding the company’s business metrics can be found on TradeStation Group’s Web site at www.tradestation.com/aboutus/businessmetrics.shtm. About TradeStation Group, Inc. TradeStation Group, Inc. (NASDAQ GS: TRAD), through its principal operating subsidiary, TradeStation Securities, Inc., offers the TradeStation platform to the active trader and certain institutional trader markets. TradeStation is an electronic trading platform that offers state-of-the-art electronic order execution and enables clients to design, test, optimize, monitor and automate their own custom Equities, Options, Futures and Forex trading strategies. TradeStation Securities, Inc. (Member NYSE, FINRA, SIPC, NSCC, DTC, OCC & NFA) is a licensed securities broker-dealer and a registered futures commission merchant, and also a member of the Boston Options Exchange, Chicago Board Options Exchange, Chicago Stock Exchange, International Securities Exchange and NASDAQ OMX. The company’s technology subsidiary, TradeStation Technologies, Inc., develops and offers strategy trading software tools and subscription services.  Its London-based subsidiary, TradeStation Europe Limited, an FSA-authorized brokerage firm, introduces UK and other European accounts to TradeStation Securities. Contact — David H. Fleischman                                                     Chief Financial Officer TradeStation Group, Inc. 954-652-7000