Form 8-K





Washington, D.C. 20549



Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): September 15, 2008

CME Group Inc.

(Exact name of registrant as specified in its charter)


Delaware   001-31553   36-4459170
(State or other jurisdiction of
  (Commission File
  (IRS Employer
Identification No.)

20 South Wacker Drive, Chicago, Illinois 60606

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (312) 930-1000

Not Applicable

(Former name or former address, if changed since last report)

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 (see General Instruction A.2. below):


¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)


¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)


¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))


¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))




Item 8.01. Other Events.

As previously reported, on August 22, 2008, CME Group Inc. (“CME Group”) completed its acquisition of NYMEX Holdings, Inc. (“NYMEX Holdings”). CME Group is hereby filing, as Exhibit 99.1 hereto, the unaudited consolidated financial statements of NYMEX Holdings as of June 30, 2008 and for the three and six month periods ended June 30, 2008 and 2007, as previously filed by NYMEX Holdings on its Quarterly Report on Form 10-Q for the period ended June 30, 2008, filed with the Securities and Exchange Commission on August 11, 2008.


Item 9.01 Financial Statements and Exhibits.


(d) Exhibits.

See exhibit index hereto.


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.


CME Group Inc.
By:   /s/ Kathleen M. Cronin

Kathleen M. Cronin

Managing Director, General Counsel
& Corporate Secretary

Date: September 15, 2008



Exhibit No.



99.1    Unaudited Consolidated Financial Statements of NYMEX Holdings, Inc.