Attached files

file filename
EX-32.1 - CERTIFICATION PURSUANT TO U.S.C. SECTION 1350 - CME GROUP INC.cme-2017123110kex321.htm
EX-31.2 - SECTION 302 CERTIFICATION - CME GROUP INC.cme-2017123110kex312.htm
EX-31.1 - SECTION 302 CERTIFICATION - CME GROUP INC.cme-2017123110kex311.htm
EX-21.1 - LIST OF SUBSIDIARIES OF CME GROUP INC - CME GROUP INC.cme-2017123110kex211.htm
EX-12.1 - RATIO OF FIXED CHARGES - CME GROUP INC.cme-2017123110kex121.htm
EX-10.5 - EQUITY STIPEND FOR NON-EXECUTIVE DIRECTORS - CME GROUP INC.cme-2017123110kex105.htm
EX-10.3 - EQUITY GRANT LETTER PERFORMANCE SHARES - CME GROUP INC.cme-2017123110kex103.htm
EX-10.2 - EQUITY GRANT LETTER RESTRICTED SHARES - CME GROUP INC.cme-2017123110kex102.htm
10-K - FORM 10-K - CME GROUP INC.cme-2017123110k.htm

Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in the following Registration Statements:
(1) Registration Statement (Form S-8 No. 333-105236) pertaining to the CME Group Inc. Amended and Restated Omnibus Stock Plan,
(2) Registration Statement (Form S-8 No. 333-159932) pertaining to the CME Group Inc. Amended and Restated Omnibus Stock Plan and the 2005 Director Stock Plan,
(3) Registration Statement ((Form S-8 and Post-Effective Amendment No. 1 No. 333-104804); Form S-8 No. 333-115656) pertaining to the Agreement between Chicago Mercantile Exchange Holdings Inc. and James J. McNulty,
(4) Registration Statement (Form S-8 No. 333-124497) pertaining to the Employee Stock Purchase Plan and the 2005 Director Stock Plan,
(5) Registration Statement (Form S-8 No. 333-144543) pertaining to CBOT Holdings, Inc.’s 2005 Long-Term Equity Incentive Plan,
(6) Registration Statement (Form S-8 No. 333-153462) and Post-Effective Amendments No. 1 and No. 2 to Registration Statement on Form S-4 (Form S-8 No. 333-151577) pertaining to the NYMEX Holdings, Inc.’s 2006 Omnibus Long-Term Incentive Plan,
(7) Registration Statement (Form S-8 No. 333-182741) pertaining to the Employee Stock Purchase Plan,
(8) Registration Statement (Form S-3ASR No. 333-163473) Shelf Registration Statement for the offering of debt securities, Class A Common Stock, Preferred Stock and Warrants,
(9) Registration Statement (Form S-3ASR No. 333-185311) Shelf Registration Statement for the offering of debt securities, Class A Common Stock, Preferred Stock and Warrants.
(10) Registration Statement (Form S-3ASR No. 333-208334) Shelf Registration Statement for the offering of debt securities, Class A Common Stock, Preferred Stock and Warrants.

of our reports dated February 28, 2018, with respect to the consolidated financial statements and schedule of CME Group Inc., and the effectiveness of internal control over financial reporting of CME Group Inc., included in this Annual Report (Form 10-K) of CME Group Inc. for the year ended December 31, 2017.
/s/ Ernst & Young LLP
Chicago, Illinois
February 28, 2018