STOCKHOLDER INFORMATION PAGE

On February 9, 2005, the demutualization plan of the Chicago Stock
Exchange ("CHX" or the "Exchange") received approval from the Securities and Exchange Commission ("SEC"). The CHX now operates as a direct and wholly-owned subsidiary of CHX Holdings, Inc. ("CHX Holdings"), a Delaware corporation. On the effective date of the demutualization, each member of the Exchange received 1,000 shares of the common stock of CHX Holdings for each membership that the member owned.

Under its certificate of incorporation, the authorized capital stock of
CHX Holdings consists of 750,000 shares of common stock, $.01 par value per share, and 25,000 shares of preferred stock, par value $.01 per share. 450,000 shares of the authorized CHX Holdings common stock were issued and outstanding immediately following the demutualization transaction.

Transfer Process for CHX Holdings Common Stock

All transfer requests must be mailed or hand delivered directly to:

CHX Holdings, Inc.
Attn: Office of the Secretary
440 S. LaSalle Street
Suite 3200
Chicago, IL 60605

Requests for transfer must include a completed Stock Transfer Form

The transfer process is set forth in greater detail in Stockholder
Notice 2005-01 "Stock Transfer Procedures."

CHX HOLDINGS' COMMON STOCK IS SUBJECT TO LIMITATIONS ON TRANSFER, OWNERSHIP AND VOTING. THESE LIMITATIONS INCLUDE THE FOLLOWING:

1. CHX HOLDINGS COMMON STOCK HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE TRANSFERRED WITHOUT REGISTRATION UNDER SUCH ACT OR PURSUANT TO AN EXEMPTION THEREFROM. CHX HOLDINGS MAY REQUIRE AN OPINION OF COUNSEL REASONABLY SATISFACTORY TO CHX HOLDINGS THAT SUCH AN EXEMPTION IS AVAILABLE. PLEASE SEE ARTICLE IX, SECTION 3 OF THE CHX HOLDINGS BYLAWS.

2. NO PERSON, EITHER ALONE OR TOGETHER WITH ITS RELATED PERSONS MAY (A) OWN, DIRECTLY OR INDIRECTLY, OF RECORD OR BENEFICIALLY, SHARES CONSTITUTING MORE THAN FORTY PERCENT (40%) (OR TWENTY PERCENT (20%) IF SUCH PERSON HOLDS A TRADING PERMIT OF THE CHICAGO STOCK EXCHANGE, INC.) OF ANY
CLASS OF CAPITAL STOCK OF THE CORPORATION, OR (B) DIRECTLY, INDIRECTLY OR PURSUANT TO A VOTING TRUST, AGREEMENT, PLAN OR OTHER ARRANGEMENT, VOTE OR CAUSE THE VOTING OF SHARES OF CAPITAL STOCK OF THE CORPORATION REPRESENTING MORE THAN TWENTY PERCENT (20%) OF THE VOTING POWER THEN
ISSUED AND OUTSTANDING OR GIVE ANY CONSENT TO OR PROXY WITH RESPECT THERETO, NOR MAY ANY PERSON ENTER INTO ANY SUCH ARRANGEMENT THAT WOULD ENABLE ANY PERSON TO VOTE OR CAUSE THE VOTING OF MORE THAN TWENTY PERCENT (20%) OF SUCH VOTING POWER. FOR MORE INFORMATION, INCLUDING INFORMATION REGARDING ANY REPORTING AND NOTICE OBLIGATIONS WITH RESPECT TO THESE RESTRICTIONS, PLEASE SEE THE TEXT OF ARTICLE FIFTH OF THE CORPORATION'S RESTATED CERTIFICATE OF INCORPORATION, EFFECTIVE AS OF FEBRUARY 9, 2005.

3. NO STOCKHOLDER MAY TRANSFER COMMON STOCK EXCEPT IN BLOCKS OF 1000 SHARES PER TRANSFER. PLEASE SEE ARTICLE IX, SECTION 2 OF THE CHX HOLDINGS' BYLAWS.

4. NO STOCKHOLDER MAY TRANSFER COMMON STOCK UNTIL ALL AMOUNTS DUE AND OWING BY SUCH STOCKHOLDER TO THE CHICAGO STOCK EXCHANGE, INC. HAVE BEEN PAID IN FULL. PLEASE SEE ARTICLE IX, SECTION 3 OF THE CHX HOLDINGS' BYLAWS.

COPIES OF THE CHX HOLDINGS’ CERTIFICATE OF INCORPORATION AND BYLAWS, WHICH FURTHER DETAIL THESE LIMITATIONS, ARE AVAILABLE WITHOUT CHARGE UPON WRITTEN REQUEST TO CHX HOLDINGS.

Access to Indications of Trading Interest

Persons who wish to express Indications of Interest, or to inquire
regarding presently outstanding Indications of Interest, must contact the Office of the Secretary, CHX Holdings. Prior to being given access to any information related to existing Indications of Interest, the person must complete and submit the following:

• Existing CHX Holdings Stockholder: Submit signed Access Agreement – Indications of Interest only.

• Non-CHX Holdings Stockholder: Submit signed Application for Access to Indications of Interest AND Access Agreement – Indications of Interest.

A person who has submitted the above materials may access information relating to Indications of Interest, and may also submit an Indication of Interest if such person submits the following:

• Indication of Interest Submission/Withdrawal Form

CHX Holdings reserves the right to reject or cancel an Indication of
Interest, or to reject an Application for Access to Indications of
Interest, at any time. Indications of Interest will be posted by CHX
Holdings on its Indication of Interest Board, also known as the "I-Board."

The Indication of Interest process, and the terms, conditions,
disclaimers and limitations associated with the I-Board, are detailed in Stockholder Notice 2005-02 "Indication of Interest Procedures."

Bylaws and Certificate of Incorporation