X0202 4 2006-02-23 0 0001111559 TRADESTATION GROUP INC TRAD 0001052104 CRUZ WILLIAM R 8050 SW 10TH STREET SUITE 4000 PLANTATION FL 33324 1 1 1 0 Co-Chairman and Co-CEO Common Stock 2006-02-23 4 S 0 100 15.67 D 1398500 I Partner Common Stock 2006-02-23 4 S 0 100 15.68 D 1398400 I Partner Common Stock 2006-02-23 4 S 0 400 15.70 D 1398000 I Partner Common Stock 2006-02-23 4 S 0 400 15.72 D 1397600 I Partner Common Stock 2006-02-23 4 S 0 800 15.74 D 1396800 I Partner Common Stock 2006-02-23 4 S 0 900 15.75 D 1395900 I Partner Common Stock 2006-02-23 4 S 0 1700 15.76 D 1394200 I Partner Common Stock 2006-02-23 4 S 0 2300 15.77 D 1391900 I Partner Common Stock 2006-02-23 4 S 0 1200 15.78 D 1390700 I Partner Common Stock 2006-02-23 4 S 0 600 15.79 D 1390100 I Partner Common Stock 2006-02-23 4 S 0 1500 15.80 D 1388600 I Partner Common Stock 2006-02-23 4 S 0 1200 15.81 D 1387400 I Partner Common Stock 2006-02-23 4 S 0 2100 15.82 D 1385300 I Partner Common Stock 2006-02-23 4 S 0 700 15.83 D 1384600 I Partner Common Stock 2006-02-23 4 S 0 1100 15.84 D 1383500 I Partner Common Stock 2006-02-23 4 S 0 400 15.85 D 1383100 I Partner Common Stock 2006-02-23 4 S 0 300 15.86 D 1382800 I Partner Common Stock 2006-02-23 4 S 0 903 15.87 D 1381897 I Partner Common Stock 2006-02-23 4 S 0 597 15.88 D 1381300 I Partner Common Stock 2006-02-23 4 S 0 400 15.89 D 1380900 I Partner Common Stock 2006-02-23 4 S 0 700 15.90 D 1380200 I Partner Common Stock 2006-02-23 4 S 0 500 15.91 D 1379700 I Partner Common Stock 2006-02-23 4 S 0 800 15.92 D 1378900 I Partner Common Stock 2006-02-23 4 S 0 200 15.93 D 1378700 I Partner Common Stock 2006-02-23 4 S 0 300 15.94 D 1378400 I Partner Common Stock 2006-02-23 4 S 0 1100 15.95 D 1377300 I Partner Common Stock 8103738 I Partner Common Stock 900 I Spouse Common Stock 100 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by WRCF-II 1997 Limited Partnership on October 26, 2005. Shares owned by WRCF-II 1997 Limited Partnership, which is 100% beneficially owned by William R. Cruz. Shares owned by WRCF-I 1997 Limited Partnership, the 1% general partner of which is a Texas corporation that is wholly owned by William R. Cruz and the 99% limited partner of which is William R. Cruz. WRCF-I 1997 Limited Partnership is a 10% owner of the issuer. This partnership engaged in no purchase or sale transactions regarding the shares. Shares owned by Patricia Cruz, the wife of William R. Cruz. William R. Cruz disclaims beneficial ownership of these shares. /s/ William R. Cruz 2006-02-27