    <SEC-DOCUMENT>0001156375-22-000146-index.html : 20220323
    <SEC-HEADER>0001156375-22-000146.hdr.sgml : 20220323
    <ACCEPTANCE-DATETIME>20220323164142
    ACCESSION NUMBER:		0001156375-22-000146
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		16
    FILED AS OF DATE:		20220323
    DATE AS OF CHANGE:		20220323

    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:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-31553
    		FILM NUMBER:		22763659

    	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>DEFA14A
    <SEQUENCE>1
    <FILENAME>classb2022campaignletter.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: classb2022campaignletter.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>classb2022campaignletter001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: classb2022campaignletter001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>classb2022campaignletter002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: classb2022campaignletter002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>classb2022campaignletter003.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: classb2022campaignletter003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>classb2022campaignletter004.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: classb2022campaignletter004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>classb2022campaignletter005.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: classb2022campaignletter005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>classb2022campaignletter006.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: classb2022campaignletter006.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>classb2022campaignletter007.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: classb2022campaignletter007.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>classb2022campaignletter008.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: classb2022campaignletter008.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>classb2022campaignletter009.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: classb2022campaignletter009.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>classb2022campaignletter010.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: classb2022campaignletter010.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>classb2022campaignletter011.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: classb2022campaignletter011.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>classb2022campaignletter012.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: classb2022campaignletter012.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>classb2022campaignletter013.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: classb2022campaignletter013.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>classb2022campaignletter014.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: classb2022campaignletter014.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>classb2022campaignletter015.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: classb2022campaignletter015.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>