<SEC-DOCUMENT>0001156375-23-000009-index.html : 20230203
<SEC-HEADER>0001156375-23-000009.hdr.sgml : 20230203
<ACCEPTANCE-DATETIME>20230203080759
ACCESSION NUMBER:		0001156375-23-000009
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		5
CONFORMED PERIOD OF REPORT:	20230203
FILED AS OF DATE:		20230203
DATE AS OF CHANGE:		20230203

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CME GROUP INC.
		CENTRAL INDEX KEY:			0001156375
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY & COMMODITY BROKERS, DEALERS, EXCHANGES & SERVICES [6200]
		IRS NUMBER:				364459170
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31553
		FILM NUMBER:		23583772

	BUSINESS ADDRESS:	
		STREET 1:		20 S. WACKER DR.
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		3129301000

	MAIL ADDRESS:	
		STREET 1:		20 S. WACKER DR.
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CHICAGO MERCANTILE EXCHANGE HOLDINGS INC
		DATE OF NAME CHANGE:	20010802
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEF 14A
<SEQUENCE>1
<FILENAME>a2023letterannouncingclass.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: a2023letterannouncingclass.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>a2023letterannouncingnom001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: a2023letterannouncingnom001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>a2023letterannouncingnom002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: a2023letterannouncingnom002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>a2023letterannouncingnom003.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: a2023letterannouncingnom003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>coverpageforaddtionalmat001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: coverpageforaddtionalmat001.jpg

</DOCUMENT>
</SEC-DOCUMENT>