NASDAQ OMX Group (NDAQ)

Registrant’s telephone number, including area code: (212) 401-8700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On January 31, 2008, The Nasdaq Stock Market, Inc. (“Nasdaq”) issued a press release providing financial results for the fourth quarter of 2007. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

The information set forth under “Item 2.02 Results of Operations and Financial Condition” is intended to be furnished pursuant to Item 2.02. Such information, including Exhibit 99.1, shall not be deemed “filed” for purposes of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference into any of Nasdaq’s filings under the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

(d) Exhibits.

Registrant’s telephone number, including area code: (212) 401-8700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Registrant’s telephone number, including area code: (212) 401-8700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On October 2, 2007, The Nasdaq Stock Market, Inc. issued a press release announcing the entry into definitive agreements to acquire the Boston Stock Exchange and key exchange assets. This press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

(d) Exhibits.

SIGNATURES

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.

Registrant’s telephone number, including area code: (212) 401-8700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Registrant’s telephone number, including area code: (212) 401-8700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On September 20, 2007, The Nasdaq Stock Market, Inc. made two separate announcements regarding a series of transactions with Borse Dubai Limited. These press releases are attached as Exhibit 99.1 and Exhibit 99.2 to this Current Report on Form 8-K and are incorporated herein by reference.

(c) Exhibits.

SIGNATURES

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.

Registrant’s telephone number, including area code: (212) 401-8700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On August 20, 2007, The Nasdaq Stock Market, Inc. (“Nasdaq”) issued a press release regarding its stake in the London Stock Exchange Group plc. This press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

(c) Exhibits.

SIGNATURES

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.

Registrant’s telephone number, including area code: (212) 401-8700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On August 20, 2007, The Nasdaq Stock Market, Inc. (“Nasdaq”) issued a press release regarding its stake in the London Stock Exchange Group plc. This press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

(c) Exhibits.

SIGNATURES

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.

Registrant’s telephone number, including area code: (212) 401-8700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On August 17, 2007, The Nasdaq Stock Market, Inc. (“NASDAQ”) issued a press release containing a statement regarding its offer for OMX AB. This press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Cautionary Note Regarding Forward-Looking Statements

Information set forth in this communication contains forward-looking statements, which involve a number of risks and uncertainties. OMX and NASDAQ caution readers that any forward-looking information is not a guarantee of future performance and that actual results could differ materially from those contained in the forward-looking information. Such forward-looking statements include, but are not limited to, statements about the benefits of the Offer, the proposed business combination transaction involving NASDAQ and OMX, including estimated revenue and cost synergies, the Combined Group’s plans, objectives, expectations and intentions and other statements that are not historical facts. Additional risks and factors are identified in NASDAQ’s filings with the U.S. Securities Exchange Commission (the “SEC”), including its Report on Form 10-K for the fiscal year ending December 31, 2006 which is available on NASDAQ’s website at http://www.nasdaq.com and the SEC’s website at SEC’s website at www.sec.gov. and in OMX’s filings with the Swedish Financial Supervisory Authority (Sw. Finansinspektionen) (the “SFSA”) including its annual report for 2006, which is available on OMX’s website at http://www.omxgroup.com. The parties undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise.

Notice to OMX shareholders

While the Offer is being made to all holders of OMX shares, this document does not constitute an offer to purchase, sell or exchange or the solicitation of an offer to purchase, sell or exchange any securities of OMX or an offer to purchase, sell or exchange or the solicitation of an offer to purchase, sell or exchange any securities of Nasdaq in any jurisdiction in which the making of the Offer or the acceptance of any tender of shares therein would not be made in compliance with the laws of such jurisdiction. In particular, the Offer is not being made, directly or indirectly, in or into Australia, Canada, Japan or South Africa. While NASDAQ reserves the right to make the Offer in or into the United Kingdom or any other jurisdiction pursuant to applicable exceptions or following appropriate filings and prospectus or equivalent document publication by NASDAQ in such jurisdictions, pending such filings or publications and in the absence of any such exception the Offer is not made in any such jurisdiction.

Additional Information About this Transaction

On August 7, 2007, NASDAQ filed with the SEC a Registration Statement on Form S-4 that includes a preliminary proxy statement of NASDAQ that also constitutes a prospectus of NASDAQ. Investors and security holders are urged to read the preliminary proxy statement/prospectus and the definitive proxy statement/prospectus when it becomes available, as well as other applicable documents regarding the proposed business combination transaction, because those documents contain, or will contain, important information. You may obtain a free copy of those documents and other related documents filed by NASDAQ with the SEC at the SEC’s website at www.sec.gov. The proxy statement/prospectus and the other documents may also be obtained for free by accessing NASDAQ’s website at http://www.nasdaq.com and OMX’s website at http://www.omxgroup.com.

NASDAQ and its directors and executive officers and other members of management and employees may be deemed to be participants in the solicitation of proxies from NASDAQ stockholders in respect of the transactions described in this communication. You can find information about NASDAQ’s executive officers and directors in NASDAQ’s definitive proxy statement filed with the SEC on April 20, 2007. You can obtain free copies of these documents and of the proxy statement prospectus from NASDAQ by

accessing NASDAQ’s website at http://www.nasdaq.com. Additional information regarding the interests of such potential participants will be included in the proxy statement/prospectus and the other relevant documents filed with the SEC when they become available.

(c) Exhibits.

SIGNATURES

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.

Registrant’s telephone number, including area code: (212) 401-8700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On August 9, 2007, The Nasdaq Stock Market, Inc. (“NASDAQ”) issued a press release containing a statement regarding OMX AB. This press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Cautionary Note Regarding Forward-Looking Statements

Information set forth in this communication contains forward-looking statements, which involve a number of risks and uncertainties. OMX and NASDAQ caution readers that any forward-looking information is not a guarantee of future performance and that actual results could differ materially from those contained in the forward-looking information. Such forward-looking statements include, but are not limited to, statements about the benefits of the Offer, the proposed business combination transaction involving NASDAQ and OMX, including estimated revenue and cost synergies, the Combined Group’s plans, objectives, expectations and intentions and other statements that are not historical facts. Additional risks and factors are identified in NASDAQ’s filings with the U.S. Securities Exchange Commission (the “SEC”), including its Report on Form 10-K for the fiscal year ending December 31, 2006 which is available on NASDAQ’s website at http://www.nasdaq.com and the SEC’s website at SEC’s website at www.sec.gov. and in OMX’s filings with the Swedish Financial Supervisory Authority (Sw. Finansinspektionen) (the “SFSA”) including its annual report for 2006, which is available on OMX’s website at http://www.omxgroup.com. The parties undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise.

Notice to OMX shareholders

While the Offer is being made to all holders of OMX shares, this document does not constitute an offer to purchase, sell or exchange or the solicitation of an offer to purchase, sell or exchange any securities of OMX or an offer to purchase, sell or exchange or the solicitation of an offer to purchase, sell or exchange any securities of Nasdaq in any jurisdiction in which the making of the Offer or the acceptance of any tender of shares therein would not be made in compliance with the laws of such jurisdiction. In particular, the Offer is not being made, directly or indirectly, in or into Australia, Canada, Japan or South Africa. While NASDAQ reserves the right to make the Offer in or into the United Kingdom or any other jurisdiction pursuant to applicable exceptions or following appropriate filings and prospectus or equivalent document publication by NASDAQ in such jurisdictions, pending such filings or publications and in the absence of any such exception the Offer is not made in any such jurisdiction.

Additional Information About this Transaction

On August 7, 2007, NASDAQ filed with the SEC a Registration Statement on Form S-4 that includes a preliminary proxy statement of NASDAQ that also constitutes a prospectus of NASDAQ. Investors and security holders are urged to read the preliminary proxy statement/prospectus and the definitive proxy statement/prospectus when it becomes available, as well as other applicable documents regarding the proposed business combination transaction, because those documents contain, or will contain, important information. You may obtain a free copy of those documents and other related documents filed by NASDAQ with the SEC at the SEC’s website at www.sec.gov. The proxy statement/prospectus and the other documents may also be obtained for free by accessing NASDAQ’s website at http://www.nasdaq.com and OMX’s website at http://www.omxgroup.com.

NASDAQ and its directors and executive officers and other members of management and employees may be deemed to be participants in the solicitation of proxies from NASDAQ stockholders in respect of the transactions described in this communication. You can find information about NASDAQ’s executive officers and directors in NASDAQ’s definitive proxy statement filed with the SEC on April 20, 2007. You can obtain free copies of these documents and of the proxy statement prospectus from NASDAQ by accessing NASDAQ’s website at http://www.nasdaq.com. Additional information regarding the interests of such potential participants will be included in the proxy statement/prospectus and the other relevant documents filed with the SEC when they become available.

SIGNATURES

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.

Registrant’s telephone number, including area code: (212) 401-8700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On July 19, 2007, The Nasdaq Stock Market, Inc. (“Nasdaq”) issued a press release providing financial results for the second quarter of 2007. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

The information set forth under “Item 2.02 Results of Operations and Financial Condition” is intended to be furnished pursuant to Item 2.02. Such information, including Exhibit 99.1, shall not be deemed “filed” for purposes of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference into any of Nasdaq’s filings under the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

(c) Exhibits.

SIGNATURES

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.

Registrant’s telephone number including area code: (212) 401-8700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Registrant’s telephone number, including area code: (212) 401-8700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Effective May 1, 2007, the Pension Plan and the SERP will be fully frozen for all employees, and the new retirement benefits will be implemented on July 1, 2007. As a result, plan participants will only accrue additional Pension Plan and SERP benefits through April 30, 2007. Plan participants will not accrue any additional Pension Plan or SERP benefits based on earnings from, or service with, Nasdaq for periods on or after May 1, 2007. However, participants will continue to receive credit for future service for vesting in their frozen accrued Pension Plan and SERP benefits and for eligibility for an existing early retirement subsidy under the Pension Plan.

The first part of the new retirement benefits, which will be provided under the existing 401(k) Plan, is available to all employees, including executive officers, on the same terms. Under the 401(k) Plan, Nasdaq will:

Nasdaq will also, as part of the new retirement benefits, have the ability to make additional, discretionary tax-qualified contributions to the 401(k) Plan.

The second part of Nasdaq’s new retirement program is the Supplemental ERC Plan. The Supplemental ERC Plan will be available to officers and non-officers whose base salaries exceed the Internal Revenue Code (Code) annual compensation limit of $225,000 (for 2007) or whose total annual Basic and Enhanced ERC contributions (when considered together with all other employee and Nasdaq contributions to the 401(k) Plan) would exceed the Code’s annual contribution limit, generally $45,000 (for 2007). Employees who cannot receive their full Basic and Enhanced ERC contributions under the 401(k) Plan due to these Code limits will receive employer contributions that make up for this shortfall through the Supplemental ERC Plan. As such, these employees will continue to receive the full Basic and Enhanced ERC amounts that they would have been entitled to but for these Code limits. (Nasdaq will also have the discretion to make additional “make-up” contributions to the Supplemental ERC Plan in the event that any portion of the Basic or Enhanced ERC contributions cannot be provided to higher paid employees under the 401(k) Plan on account of separate Code “nondiscrimination” limitations.)

Nasdaq’s contributions to the Basic ERC, Enhanced ERC and Supplemental ERC Plan will depend upon Nasdaq achieving corporate financial goals that may be set each year by the management compensation committee and are expected to mirror the goals for Nasdaq’s Executive Corporate Incentive Plan. This better ties retirement benefits to Nasdaq’s performance than the Pension Plan and SERP, under which benefits are, prior to the upcoming hard freeze, based solely on age, salary and length of service. The new ERC benefits will also provide employees with a competitive and simple method to calculate their potential benefits. Employees may also direct the investment of their Basic ERC and Enhanced ERC contributions among the various mutual funds available under the 401(k) Plan. Unlike the Pension Plan and SERP, the ERC benefits will be immediately vested.

(d) Exhibits.

99.1 Amendment to The Nasdaq Stock Market, Inc. Supplemental Executive Retirement Plan, adopted April 18, 2007.

99.2 The Nasdaq Stock Market, Inc. Supplemental Employer Retirement Contribution Plan, adopted April 18, 2007.

SIGNATURES

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.

Registrant’s telephone number, including area code: (212) 401-8700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On April 19, 2007, The Nasdaq Stock Market, Inc. (“Nasdaq”) issued a press release providing financial results for the first quarter of 2007. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

The information set forth under “Item 2.02 Results of Operations and Financial Condition” is intended to be furnished pursuant to Item 2.02. Such information, including Exhibit 99.1, shall not be deemed “filed” for purposes of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference into any of Nasdaq’s filings under the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

(c) Exhibits.

SIGNATURES

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.