X0202 3/A 2007-11-08 2007-11-19 1 0000920424 INVESTMENT TECHNOLOGY GROUP INC ITG 0001263972 D. E. SHAW LAMINAR PORTFOLIOS, L.L.C. 39TH FLOOR, TOWER 45 120 WEST FORTY-FIFTH STREET NEW YORK NY 10036 0 0 1 1 See remarks 0001419081 D. E. Shaw Synoptic Portfolios 2, L.L.C. 39TH FLOOR, TOWER 45 120 WEST FORTY-FIFTH STREET NEW YORK NY 10036 0 0 1 1 See remarks 0001277502 D. E. SHAW & CO, L.L.C. 39TH FLOOR, TOWER 45 120 WEST FORTY-FIFTH STREET NEW YORK NY 10036 0 0 1 1 See remarks 0001009268 D. E. SHAW & CO, L.P. 39TH FLOOR, TOWER 45 120 WEST FORTY-FIFTH STREET NEW YORK NY 10036 0 0 1 1 See remarks 0001023870 SHAW DAVID E 39TH FLOOR, TOWER 45 120 WEST FORTY-FIFTH STREET NEW YORK NY 10036 0 0 1 1 See remarks On November 19, 2007, the reporting persons filed an initial statement of beneficial ownership on Form 3 with respect to shares of common stock of the issuer (the "Original Form 3"). This amendment to the Original Form 3 is filed solely for the purpose of adding D. E. Shaw Synoptic Portfolios 2, L.L.C. as a reporting person. Except as otherwise stated in this remark, this amendment does not alter any of the other information reported in the Original Form 3. D. E. Shaw Laminar Portfolios, L.L.C. By: D. E. Shaw & Co. L.L.C., as managing member By: /s/ Rochelle Elias, Chief Compliance Officer 2007-11-20 D. E. Shaw Synoptic Portfolios 2, L.L.C. By: D. E. Shaw & Co., L.L.C., as managing member By: /s/ Rochelle Elias, Chief Compliance Officer 2007-11-20 D. E. Shaw & Co., L.P. By: /s/ Rochelle Elias, Chief Compliance Officer 2007-11-20 D. E. Shaw & Co., L.L.C. By: /s/ Rochelle Elias, Chief Compliance Officer 2007-11-20 David E. Shaw By: Rochelle Elias, Attorney-in-Fact 2007-11-20