PLANTATION, Fla., Sept. 5 /PRNewswire-FirstCall/ -- TradeStation Group, Inc. (Nasdaq GS: TRAD) today reported the following business metrics for the month ended August 31, 2006: - 55,166 Daily Average Revenue Trades (DARTs) - Total client assets of $1.5 billion (as of August 31, 2006) Year over year, TradeStation's DARTs increased 40% and total client assets increased 20%. Below in tabular format are year-over-year comparisons of those metrics on both a monthly and quarterly basis: TradeStation Securities Business Metrics Q3-06 QTD* Aug-06 vs. Qtr vs. Q3-06 Qtr Ended Ended Aug-06 Aug-05 Aug-05 QTD* 9/30/05 9/30/05 ------ ------ ------ ----- --------- ------- Trading Days 23.0 23.0 N.M. 42.5 64.0 N.M. Daily Average Revenue Trades (DARTs) 55,166 39,496 40% 57,729 41,206 40% Total Client Assets ($MM), end of period $1,513 $1,260 20% $1,513 $1,296 17% Additional information regarding the company's business metrics can be found on TradeStation Group's Web site at http://www.tradestation.com/aboutus/businessmetrics.shtm. * Q3-06 quarter-to-date (QTD) means results for the two months ended August 31, 2006. 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 "direct market access" (DMA) or "direct-access" order execution and enables clients to design, test, optimize, monitor and automate their own custom Equities, Options, Futures and Forex trading strategies. In 2006, TradeStation was named, for the second year in a row, Best Futures Brokerage and, for the fourth year in a row, Best Direct-Access Stock Broker, Best Direct-Access Futures Broker, Best Professional Platform and Best Institutional Platform, in "Technical Analysis of Stocks and Commodities" magazine. TradeStation Securities, Inc. (Member NASD, NYSE, SIPC, NSCC, DTC, OCC & NFA) is a licensed securities broker-dealer and a registered futures commission merchant, and also a member of the American Stock Exchange, Archipelago Exchange, Boston Options Exchange, Chicago Board Options Exchange, International Securities Exchange, Pacific Exchange and Philadelphia Stock Exchange. The company's other operating subsidiary, TradeStation Technologies, Inc., develops and offers strategy trading software tools and subscription services. Contact -- David H. Fleischman Chief Financial Officer TradeStation Group, Inc. 954-652-7000 DATASOURCE: TradeStation Group, Inc. CONTACT: David H. Fleischman, Chief Financial Officer of TradeStation Group, Inc., +1-954-652-7000 Web site: http://www.tradestation.com/ http://www.tradestation.com/aboutus/businessmetrics.shtm

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