UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 15, 2004 TradeStation Group, Inc. (Exact name of registrant as specified in its charter) FLORIDA (State or other jurisdiction of incorporation) 0-31049 65-0977576 (Commission File Number) (I.R.S. Employer Identification No.) 8050 S.W. 10th Street, Suite 4000, Plantation, Florida 33324 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (954) 652-7000 Not Applicable (Former name or former address, if changed since last report) 1 Item 7. Financial Statements and Exhibits. (c) Exhibits Exhibit No. Exhibit Description ----------- ------------------- 99 Press Release dated April 15, 2004. Item 12. Results of Operations and Financial Condition. TradeStation Group, Inc. (the "Company") reported its financial results for its first quarter ended March 31, 2004. The Company also released, along with its results, a Business Outlook for the 2004 second quarter. A copy of the Company's press release issued on April 15, 2004 concerning the foregoing results and the Business Outlook for the 2004 second quarter is furnished as part of this report. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. TRADESTATION GROUP, INC. Date: April 15, 2004 By: /s/ David H. Fleischman --------------------------------------- David H. Fleischman Chief Financial Officer, Vice President of Finance and Treasurer 2 EXHIBIT INDEX Exhibit No. Exhibit Description ----------- ------------------- 99 Press Release dated April 15, 2004. 3