Filed by CBOE Holdings, Inc.

pursuant to Rule 425 under the Securities Act of 1933, as amended


Subject Company: CBOE Holdings, Inc.

Subject Company’s Commission File No.: 333-140574


On June 17, 2008, the Chicago Board Options Exchange, Incorporated issued the following press release.


CBOE News Release


Chicago Board Options Exchange

400 S. LaSalle Street

Chicago, IL  60605








CHICAGO, June 17, 2008 — The Chicago Board Options Exchange (CBOE) announced that a CBOE seat, or membership, traded for a new all-time high of $3,200,000 earlier today.  Today’s new record surpassed the previous high price of $3,150,000 for a CBOE seat, which was set on December 11, 2007.  On the year, a total of 75 seats have now traded at CBOE.


CBOE’s Membership Department facilitates the purchase and sale of seats using an auction method in which bids and offers from interested parties are submitted to the Exchange.  When a bid matches an offer, a sale is made.


CBOE, the largest options marketplace in the U.S. and the creator of listed options, is regulated by the Securities and Exchange Commission (SEC). For additional information about the CBOE and its products, visit the CBOE website at:


CBOE Contacts:


Gail Osten


Gary Compton

(312) 786-7123


(312) 786-7612


CBOEÒ and Chicago Board Options ExchangeÒ are registered trademarks of Chicago Board Options Exchange, Incorporated.


This communication shall not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any state or jurisdiction in which an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended.


In connection with the proposed restructuring transaction, CBOE Holdings, Inc. (“CBOE Holdings”) has filed certain relevant materials with the United States Securities and Exchange Commission (SEC), including a registration statement on Form S-4. Members are encouraged to read the registration statement, including the proxy statement/prospectus that are a part of the registration statement, because it contains important information about the proposed transaction. Members are able to obtain a free copy of the proxy statement/prospectus, as well as the other filings containing information about CBOE Holdings and the Chicago Board Options Exchange, Incorporated (“CBOE”), without charge, at the SEC’s Web site,, and the companies’ website,  In addition, CBOE members may obtain free copies of the proxy statement/prospectus and other documents filed by CBOE Holdings or the CBOE from CBOE Holdings by directing a request to the Office of the Secretary, CBOE Holdings, Inc., 400 South LaSalle Street, Chicago, Illinois 60605.


CBOE Holdings, the CBOE and their respective directors, executive officers and other employees may be deemed to be participants in the solicitation of proxies in connection with the proposed transaction. Information about the directors and executive officers of CBOE Holdings and of the CBOE is available in the prospectus/proxy statement.


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