<SEC-DOCUMENT>0001156375-21-000161-index.html : 20211027
<SEC-HEADER>0001156375-21-000161.hdr.sgml : 20211027
<ACCEPTANCE-DATETIME>20211027070812
ACCESSION NUMBER:		0001156375-21-000161
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		14
CONFORMED PERIOD OF REPORT:	20211027
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20211027
DATE AS OF CHANGE:		20211027

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:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31553
		FILM NUMBER:		211350672

	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>
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<FILENAME>cme-20211027.htm
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Document 1 - file: cme-20211027.htm

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<DOCUMENT>
<TYPE>EX-99.1
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<FILENAME>exhibit99193021.htm
<DESCRIPTION>EX-99.1
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Document 2 - file: exhibit99193021.htm

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<TYPE>EX-101.SCH
<SEQUENCE>3
<FILENAME>cme-20211027.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
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<TEXT>
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<TYPE>GRAPHIC
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<FILENAME>cmegpressreleasea02a.jpg
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<TYPE>EXCEL
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<FILENAME>Financial_Report.xlsx
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<TEXT>
Document 9 - file: Financial_Report.xlsx

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<SEQUENCE>11
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<SEQUENCE>12
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Document 12 - RAW XML: FilingSummary.xml

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<TYPE>JSON
<SEQUENCE>14
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 14 - file: MetaLinks.json

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<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>15
<FILENAME>0001156375-21-000161-xbrl.zip
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<TEXT>
Document 15 - file: 0001156375-21-000161-xbrl.zip

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