AMENDMENT TO THE AMENDED AND RESTATED TRANSITION SERVICES AGREEMENT

Exhibit 10.1

EXECUTION VERSION

AMENDMENT TO THE AMENDED AND RESTATED TRANSITION

SERVICES AGREEMENT

This is an Amendment (the “ Amendment ”) to the Amended and Restated Transition Services Agreement dated as of May 6, 2005 by and among Instinet Group Incorporated, (“ Buyer ”), Bridge Trading Company (the “ Company ”), and Reuters America LLC (“ Reuters ”), (the “ Agreement ”). Capitalized terms used but not otherwise defined herein shall have the meanings specified in the Agreement.

WHEREAS, Buyer, Reuters and the Company entered into the Agreement effective as of the Closing (as such term defined in the Purchase Agreement) pursuant to which Reuters provides certain transition services to the Company on the terms and conditions set forth therein;

WHEREAS, effective as October 1, 2005, the OrdPro related Services described on Schedule A (item 1 under the heading “Technology Services (see Schedule B for further detail)”) and B to the Agreement will terminate in accordance with a written notice of such termination received by Reuters from Buyer on September 23, 2005 pursuant to Section 7 of the Agreement;

WHEREAS, in connection with this termination, Buyer, Reuters and the Company desire to amend Schedules A and B of the Agreement with respect to the Technology Services described thereon.

NOW THEREFOR, in consideration of the mutual promises hereinafter set forth and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, each of Buyer, the Company and Reuters hereby agrees to amend the Agreement effective as of October 1, 2005 as hereinafter provided.

1. The Services listed on Schedule A to the Agreement under the heading “Technology Services (see Schedule B for further detail)” shall be deleted in their entirety and replaced with the following:

Technology Services (see Schedule B for further detail):