NASDAQ OMX Group (NDAQ)

OMX TRANSACTION AGREEMENT

This OMX TRANSACTION AGREEMENT (this “Agreement”) dated as of November 15, 2007 among The Nasdaq Stock Market, Inc., a Delaware corporation (together with any successor entity thereto, “Nasdaq”), Borse Dubai Limited, a company registered in the Dubai International Financial Centre in Dubai with company number CL0447 (together with any successor entity thereto, “Borse Dubai”), and BD Stockholm AB, a corporation organized under the laws of Sweden (the “Bidder”). Nasdaq, Borse Dubai and the Bidder are sometimes referred to herein as a “Party” and collectively as the “Parties”.

W I T N E S S E T H:

WHEREAS, Nasdaq and OMX AB (publ), a public corporation organized under the laws of Sweden (“OMX”), are Parties to a Transaction Agreement (as amended and supplemented from time to time, the “Nasdaq-OMX Agreement”), dated May 25, 2007, pursuant to which Nasdaq agreed to conduct a public tender offer to acquire all of the outstanding shares of OMX (the “Nasdaq Offer”);

WHEREAS, on August 9, 2007, Borse Dubai announced that it was in the process of purchasing OMX Shares and had directed the Option Holder (defined below) to enter into the Options;

WHEREAS, on August 17, 2007, Borse Dubai announced its intention to conduct a public tender offer to acquire all of the OMX Shares through the Bidder (as may be amended from time to time in accordance with the terms of this Agreement, the “Bidder Offer”);

WHEREAS, on September 20, 2007, Nasdaq and Borse Dubai entered into a binding letter agreement (as amended and supplemented from time to time, the “Binding Term Sheet”) providing for, among other things, and subject to the satisfaction of certain conditions, (i) Nasdaq to withdraw the Nasdaq Offer, (ii) Borse Dubai, the Bidder and the Option Holder to sell to Nasdaq all of the OMX Shares owned or acquired by them at or following the successful completion of the Bidder Offer, and (iii) Nasdaq to make an investment in, and to license or procure the licensing of certain trademarks and technology to, Borse Dubai and the Dubai International Financial Exchange Limited, a company registered in the Dubai International Financial Centre in Dubai with company number 0009 and a Subsidiary of Borse Dubai (together with any successor entity thereto, “DIFX”);

WHEREAS, on September 26, 2007, Borse Dubai and the Bidder, with the consent of Nasdaq, amended the terms of the Bidder Offer and the Binding Term Sheet to (i) increase the Bidder Offer Consideration from SEK 230 per share to SEK 265 per share (with Nasdaq being responsible for payment in respect of SEK 10 of this increase) and (ii) decrease the minimum condition from 90% to 50% plus one share;

WHEREAS, pursuant to the Binding Term Sheet, the Parties have agreed to execute this Agreement and the DIFX Agreement, which agreements, upon execution, shall have the effect of superseding the Binding Term Sheet; and

WHEREAS, the boards of directors of the Parties have each declared it advisable and in the best interests of their respective shareholders that the Parties consummate the transactions contemplated herein upon the terms and subject to the conditions provided for herein.

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NOW THEREFORE, in consideration of the foregoing recitals and the mutual promises hereinafter set forth, the Parties agree as follows: