Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Durkin Bryan T
   2. Issuer Name and Ticker or Trading Symbol
CME GROUP INC. [CME] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Sr MD Chief Commercial Officer
(Last)
(First)
(Middle)
20 S. WACKER DRIVE		 3. Date of Earliest Transaction (Month/Day/Year)
09/28/2016
(Street)

CHICAGO, IL 60606		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock Class A 09/28/2016   M   11,600 A $ 83.88 66,936 D  
Common Stock Class A 09/28/2016   S   11,600 (1) D $ 105.0929 (2) 55,336 D  
Common Stock Class A 09/28/2016   M   1,734 A $ 56.87 57,070 D  
Common Stock Class A 09/28/2016   S   1,734 (1) D $ 105.0929 (2) 55,336 D  
Common Stock Class A 09/28/2016   S   1,656 (1) D $ 105.2 (3) 53,680 D  

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Non-Qualified Stock Option (right to buy) $ 56.87 09/28/2016   M     1,734 09/15/2010(4) 09/15/2019 Common Stock Class A 1,734 $ 0 10,226 D  
Non-Qualified Stock Option (right to buy) $ 83.88 09/28/2016   M     11,600 06/16/2013(5) 06/16/2018 Common Stock Class A 11,600 $ 0 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Durkin Bryan T
20 S. WACKER DRIVE
CHICAGO, IL 60606		       Sr MD Chief Commercial Officer  

Signatures

 By: Margaret Austin Wright For: Bryan Durkin   09/29/2016
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) This sale was completed pursuant to the terms of a pre-arranged trading plan established in accordance with Rule 10b5-1.
(2) On September 28, 2016, Mr. Durkin sold an aggregate of 13,334 shares of CME Group Class A common stock. For reporting purposes, the sales prices within a $1 range have been aggregated and the weighted average sales price has been reported. The price ranges were: $107.09 to $107.99 and $108.01 to $108.62. The Company maintains a record of the transactions and copies will be provided upon request.
(3) On September 28, 2016, Mr. Durkin sold an aggregate of 1,656 shares of CME Group Class A common stock. For reporting purposes, the sales prices within a $1 range have been aggregated and the weighted average sales price has been reported. The price ranges were: $105.02 to $105.51. The Company maintains a record of the transactions and copies will be provided upon request.
(4) These options were granted on September 15, 2009. They vest over a four-year period, with 25% vesting one year after the grant date and 25% vesting on that same date in each of the following three years, subject to acceleration or termination in certain circumstances.
(5) These options were granted on June 16, 2008. They vest over a five-year period, with 20% vesting one year after the grant date and 20% vesting on that same date in each of the following three years, subject to acceleration or termination in certain circumstances.

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