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<TITLE> CME Group Inc. (Form: 8-K) </TITLE>
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		UNITED STATES<BR>
	SECURITIES AND EXCHANGE COMMISSION
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	WASHINGTON, D.C. 20549
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	FORM 8-K
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	CURRENT REPORT
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	Pursuant to Section&nbsp;13 or 15(d) of the Securities Exchange Act of 1934
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	Date of Report (Date of Earliest Event Reported):
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	February 4, 2015
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	CME Group Inc.
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	(Exact name of registrant as specified in its charter)
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	Delaware
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	001-31553
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	36-4459170
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_____________________<BR>
	(State or other jurisdiction
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	of incorporation)
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	File Number)
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	Identification No.)
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	20 South Wacker Drive, Chicago, Illinois
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	60606
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_________________________________<BR>
	(Address of principal executive offices)
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___________<BR>
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	Registrant&#146;s telephone number, including area code:
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	312-930-1000
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	Not Applicable
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	Former name or former address, if changed since last report
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	&nbsp;
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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:</FONT>
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[&nbsp;&nbsp;]&nbsp;&nbsp;Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)<br>
[&nbsp;&nbsp;]&nbsp;&nbsp;Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)<br>
[&nbsp;&nbsp;]&nbsp;&nbsp;Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))<br>
[&nbsp;&nbsp;]&nbsp;&nbsp;Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))<br>
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	Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
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On February 4, 2015, the Board of Directors of CME Group Inc. (the "Company") approved the appointment of  Jack Tobin to serve as the Company&#x2019;s Managing Director and Chief Accounting Officer effective as of April 1, 2015.  Mr. Tobin will be replacing Jill A. Harley, who has served in this role on an interim basis since May 20, 2014.  Ms. Harley will remain with the Company in a different capacity. <br><br>Mr. Tobin most recently served as our Managing Director, Corporate Finance since 2007. He has 13 years of financial services experience at the Company, CBOT Holdings, Inc. ("CBOT Holdings") and Board of Trade of the City of Chicago, Inc. ("CBOT"). Prior to our merger with CBOT Holdings, Mr. Tobin served as the Director, Corporate Finance for CBOT Holdings and CBOT from 2002 to 2007. Prior to joining CBOT, Mr. Tobin served as a principal consultant with PricewaterhouseCoopers from 1997 to 2002.  Mr. Tobin is a registered certified public accountant. <br><br>Mr. Tobin will participate in the Company&#x2019;s compensation program upon terms commensurate with other executives at the level of Managing Director. <br><br>There are no family relationships existing between Mr. Tobin and any executive officer or director of the Company. There have been no transactions, and no transactions are currently proposed, in which the Company was or is to be a participant and in which Mr. Tobin or any member of his immediate family had or will have an interest.<br>
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	SIGNATURES
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	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.
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	CME Group Inc.
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	February 5, 2015
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	By:
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	Kathleen M. Cronin
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	Name: Kathleen M. Cronin
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	Title: Senior Managing Director, General Counsel & Corporate Secretary
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CME Group Inc. (Form: 8-K)
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of Report (Date of Earliest Event Reported):
February 4, 2015
CME Group Inc.
__________________________________________
(Exact name of registrant as specified in its charter)
Delaware
001-31553
36-4459170
_____________________
(State or other jurisdiction
_____________
(Commission
______________
(I.R.S. Employer
of incorporation)
File Number)
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:
[  ]  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))
Top of the Form
Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
On February 4, 2015, the Board of Directors of CME Group Inc. (the "Company") approved the appointment of  Jack Tobin to serve as the Company's Managing Director and Chief Accounting Officer effective as of April 1, 2015.  Mr. Tobin will be replacing Jill A. Harley, who has served in this role on an interim basis since May 20, 2014.  Ms. Harley will remain with the Company in a different capacity.
Mr. Tobin most recently served as our Managing Director, Corporate Finance since 2007. He has 13 years of financial services experience at the Company, CBOT Holdings, Inc. ("CBOT Holdings") and Board of Trade of the City of Chicago, Inc. ("CBOT"). Prior to our merger with CBOT Holdings, Mr. Tobin served as the Director, Corporate Finance for CBOT Holdings and CBOT from 2002 to 2007. Prior to joining CBOT, Mr. Tobin served as a principal consultant with PricewaterhouseCoopers from 1997 to 2002.  Mr. Tobin is a registered certified public accountant.
Mr. Tobin will participate in the Company's compensation program upon terms commensurate with other executives at the level of Managing Director.
There are no family relationships existing between Mr. Tobin and any executive officer or director of the Company. There have been no transactions, and no transactions are currently proposed, in which the Company was or is to be a participant and in which Mr. Tobin or any member of his immediate family had or will have an interest.
Top of the Form
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.
CME Group Inc.
February 5, 2015
By:
Kathleen M. Cronin
Name: Kathleen M. Cronin
Title: Senior Managing Director, General Counsel & Corporate Secretary