Self-Regulatory Organizations; Chicago Board Options Exchange, Incorporated; Notice of Filing and Immediate Effectiveness of Proposed Rule Change To Extend the Duration of CBOE Rule 6.45A(b) Pertaining to Orders Represented in Open Outcry

Pursuant to section 19(b)(1) of the Securities Exchange Act of 1934 (the “Act”), and Rule 19b-4 thereunder, notice is hereby given that on July 25, 2007, the Chicago Board Options Exchange, Incorporated (“CBOE” or “Exchange”) filed with the Securities and Exchange Commission (the “Commission”) the proposed rule change as described in Items I and II below, which Items have been substantially prepared by the CBOE. The Exchange filed the proposal as a “non-controversial” proposed rule change pursuant to section 19(b)(3)(A)(iii) of the Act and Rule 19b-4(f)(6) thereunder, which renders it effective upon filing with the Commission. The Commission is publishing this notice to solicit comments on the proposed rule change from interested persons.

I. Self-Regulatory Organization's Statement of the Terms of Substance of the Proposed Rule Change

The CBOE proposes to extend the duration of CBOE Rule 6.45A(b) (the “Rule”), relating to the allocation of orders represented in open outcry in equity option classes designated by the Exchange to be traded on the CBOE Hybrid Trading System (“Hybrid”) through December 31, 2007. No other changes are being made to the Rule. The text of the proposed rule change is available at CBOE, the Commission's Public Reference Room, and ( http://www.cboe.org/Legal ).

II. Self-Regulatory Organization's Statement of the Purpose of, and Statutory Basis for, the Proposed Rule Change

In its filing with the Commission, the CBOE included statements concerning the purpose of, and basis for, the proposed rule change and discussed any comments it received on the proposed rule change. The text of those statements may be examined at the places specified in Item IV below. The Exchange has prepared summaries, set forth in sections A, B, and C below, of the most significant parts of such statements.

A. Self-Regulatory Organization's Statement of the Purpose of, and the Statutory Basis for, the Proposed Rule Change

1. Purpose

In March 2005, the Commission approved revisions to CBOE Rule 6.45A related to the introduction of Remote Market-Makers. Among other things, the Rule, pertaining to the allocation of orders represented in open outcry in equity options classes traded on Hybrid, was amended to clarify that only in-crowd market participants would be eligible to participate in open outcry trade allocations. In addition, the Rule was amended to limit the duration of the Rule until September 14, 2005. The duration of the Rule was thereafter extended through July 31, 2007. As the duration period expires on July 31, 2007, the Exchange proposes to extend the effectiveness of the Rule through December 31, 2007.

2. Statutory Basis

Extension of the duration of the Rule will allow the Exchange to continue to operate under the existing allocation parameters for orders represented in open outcry in Hybrid on an uninterrupted basis. Accordingly, CBOE believes the proposed rule change is consistent with the Act and the rules and regulations under the Act applicable to a national securities exchange and, in particular, the requirements of section 6(b) of the Act. Specifically, the Exchange believes the proposed rule change is consistent with the section 6(b)(5) requirements that the rules of an exchange be designed to promote just and equitable principles of trade, to prevent fraudulent and manipulative acts, and, in general, to protect investors and the public interest.

B. Self-Regulatory Organization's Statement on Burden on Competition

CBOE does not believe that the proposed rule change will impose any burden on competition that is not necessary or appropriate in furtherance of the purposes of the Act.

C. Self-Regulatory Organization's Statement on Comments on the Proposed Rule Change Received From Members, Participants, or Others

The Exchange neither solicited nor received comments on the proposal.

III. Date of Effectiveness of the Proposed Rule Change and Timing for Commission Action

Because the foregoing proposed rule change does not: (1) Significantly affect the protection of investors or the public interest; (2) impose any significant burden on competition; and (3) become operative for thirty days from the date on which it was filed, or such shorter time as the Commission may designate if consistent with the protection of investors and the public interest, it has become effective pursuant to section 19(b)(3)(A) of the Act and Rule 19b-4(f)(6) thereunder.

A proposed rule change filed under Commission Rule 19b-4(f)(6) normally does not become operative prior to thirty days after the date of filing. The CBOE requests that the Commission waive the 30-day operative delay, as specified in Rule 19b-4(f)(6)(iii), and designate the proposed rule change to become operative immediately to allow the Exchange to continue to operate under the existing allocation parameters for orders represented in open outcry in Hybrid on an uninterrupted basis. The Commission believes that waiving the 30-day operative delay is consistent with the protection of investors and the public interest because such waiver will allow the CBOE to continue to operate under the Rule without interruption. For these reasons, the Commission designates the proposed rule change as operative upon filing.

At any time within 60 days of the filing of such proposed rule change, the Commission may summarily abrogate such rule change if it appears to the Commission that such action is necessary or appropriate in the public interest, for the protection of investors, or otherwise in furtherance of the purposes of the Act.

IV. Solicitation of Comments

Interested persons are invited to submit written data, views, and arguments concerning the foregoing, including whether the proposed rule change is consistent with the Act. Comments may be submitted by any of the following methods:

Electronic Comments

• Use the Commission's Internet comment form ( http://www.sec.gov/rules/sro.shtml ); or
• Send an e-mail to rule-comments@sec.gov. Please include File Number SR-CBOE-2007-89 on the subject line.

Paper Comments

• Send paper comments in triplicate to Nancy M. Morris, Secretary, Securities and Exchange Commission, 100 F Street, NE., Washington, DC 20549-1090.

All submissions should refer to File Number SR-CBOE-2007-89. This file number should be included on the subject line if e-mail is used. To help the Commission process and review your comments more efficiently, please use only one method. The Commission will post all comments on the Commission's Internet Web site ( http://www.sec.gov/rules/sro.shtml ). Copies of the submission, all subsequent amendments, all written statements with respect to the proposed rule change that are filed with the Commission, and all written communications relating to the proposed rule change between the Commission and any person, other than those that may be withheld from the public in accordance with the provisions of 5 U.S.C. 552, will be available for inspection and copying in the Commission's Public Reference Room, 100 F Street, NE., Washington, DC 20549, on official business days between the hours of 10 a.m. and 3 p.m. Copies of such filing also will be available for inspection and copying at the principal office of the Exchange. All comments received will be posted without change; the Commission does not edit personal identifying information from submissions. You should submit only information that you wish to make available publicly. All submissions should refer to File Number SR-CBOE-2007-89 and should be submitted on or before August 28, 2007.