UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

SCHEUDLE 14A

(Rule 14a-101)

INFORMATION REQUIRED IN PROXY STATEMENT

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No.    )

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CME GROUP INC.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

x No fee required

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M20158-P90229

Meeting Information

You are receiving this communication because you hold

shares in the above named company.

This is not a ballot. You cannot use this notice to vote

these shares. This communication presents only an

overview of the more complete proxy materials that are

available to you on the Internet. You may view the proxy

materials online at www.proxyvote.com or easily request a

paper copy (see reverse side).

We encourage you to access and review all of the

important information contained in the proxy materials

before voting.

See the reverse side of this notice to obtain

proxy materials and voting instructions.

CME GROUP INC.

*** Exercise Your Right to Vote ***

IMPORTANT NOTICE Regarding the Availability of Proxy Materials

The Conference Center at UBS Tower

One North Wacker Drive

Chicago, Illinois

Meeting Type: Annual

For holders as of: March 08, 2010

Date: May 05, 2010 Time: 3:30 p.m. Central Time

Location:

M20159-P90229

Before You Vote

How to Access the Proxy Materials

How To Vote

Please Choose One of the Following Voting Methods

Vote In Person: If you choose to vote these shares in person at the meeting, you must request a “legal proxy.” To do

so, please follow the instructions at www.proxyvote.com or request a paper copy of the materials, which will contain the

appropriate instructions. Many shareholder meetings have attendance requirements including, but not limited to, the

possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any

special requirements for meeting attendance.

Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the 12 Digit Control Number available

and follow the instructions.

Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a voting instruction form.

Proxy Materials Available to VIEW or RECEIVE:

NOTICE AND PROXY STATEMENT ANNUAL REPORT ON FORM 10-K CME GROUP 2009 ANNUAL REVIEW

Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment

advisor. Please make the request as instructed above on or before April 21, 2010 to facilitate timely delivery.

How to View Online:

Have the 12-Digit Control Number available (located on the following page) and visit: www.proxyvote.com.

How to Request and Receive a PAPER or E-MAIL Copy:

If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for

requesting a copy. Please choose one of the following methods to make your request:

1) BY INTERNET: www.proxyvote.com

2) BY TELEPHONE: 1-800-579-1639

3) BY E-MAIL*: sendmaterial@proxyvote.com

* If requesting materials by e-mail, please send a blank e-mail with the 12-Digit Control Number (located on the

following page) in the subject line.

Voting Items

01) Terrence A. Duffy

02) Charles P. Carey

03) Mark E. Cermak

04) Martin J. Gepsman

05) Leo Melamed

06) Joseph Niciforo

07) C.C. Odom II

08) John F. Sandner

09) Dennis A. Suskind

Nine will be elected to a three-year term to the Board of Directors

1. Election of Equity Directors

The Board of Directors recommends a vote “FOR” the listed nominees.

Issues

The Board of Directors recommends a vote “FOR” the following proposal.

2. To ratify Ernst & Young LLP as our independent registered public accounting firm.

M20160-P90229

M20161-P90229

Voting Instructions