Company:  CME GROUP INC. (CME)
Form Type:  8-K
Filing Date:  2/9/2009 
CIK:  0001156375 
Address:  20 S. WACKER DR. 
City, State, Zip:  CHICAGO, Illinois 60606 
Telephone:  (312) 930-3011 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$322.99  
Change: 
1.02 (0.32%)  
Trade Time: 
Nov 20  
Market Cap: 
$21.48B
Description of Business
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  FORM 8-K
    SECTION 1 BUSINESS AND OPERATIONS
      Item 1.01. Entry into a Material Definitive Agreement.
      Item 1.02 Termination of a Material Definitive Agreement
    SECTION 9 FINANCIAL STATEMENTS AND EXHIBITS
      Item 9.01. Financial Statements and Exhibits.
    SIGNATURES
    EXHIBIT INDEX
  EXHIBIT 1.1
    Matters to be Covered by Opinion of Issuer's General Counsel
  EXHIBIT 4.2