Pursuant to Section 19(b)(1) of the Securities Exchange Act of 1934 (the “Act”) ^[1] and Rule 19b-4 thereunder,^[2] notice is hereby given that on July 30, 2010, National Stock Exchange, Inc. (“NSX®” or “Exchange”) filed with the Securities and Exchange Commission (“Commission”) the proposed rule change, as described in Items I and II below, which Items have been prepared by the Exchange. The Exchange filed the proposal as a “non-controversial” proposed rule change pursuant to Section 19(b)(3)(A)(iii) of the Act ^[3] and Rule 19b-4(f)(6) thereunder.^[4] The Commission is publishing this notice to solicit comment on the proposed rule change from interested persons.

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

NSX proposes to extend the Exchange's post regular trading hours session.

The text of the proposed rule change is available on the Exchange's Web site at http://www.nsx.com, at the principal office of the Exchange, and at the Commission's Public Reference Room. ( printed page 48403)

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 Exchange 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 these 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 Statutory Basis for, the Proposed Rule Change

1. Purpose

With this rule change, the Exchange is proposing to extend the Exchange's post regular trading hours trading session from 6:30 p.m. Eastern Time (“ET”) until 8 p.m. ET.

Currently, the Exchange's Regular Trading Hours, as such term is defined in NSX Rule 1(R)(1), are from 9:30 a.m. until 4 p.m. ET. The pre-Regular Trading Hours trading session is from 8 a.m. until 9:30 a.m. ET, and the post-Regular Trading Hours trading session is from 4 p.m. until 6:30 p.m. ET. Pursuant to Rule 11.1(a), the Board of Directors of the Exchange has determined to extend the post-Regular Trading Hours trading session until 8 p.m. ET.^[5] Pursuant to Rule 11.1(a), the Board's determination to extend the Exchange's post-Regular Trading Hours to 8:00 p.m. ET will be noticed to ETP Holders pursuant to Regulatory Circular. In addition, the text of Rule 11.1(a) is supplemented to reflect proposed Exchange business hours.

The Exchange's surveillance programs and resources presently in force with respect to the Exchange's current post-Regular Trading Hours trading session, which (prior to the proposed operative date of August 2, 2010 of the instant rule filing) closes at 6:30 p.m. ET, will be utilized to effectively surveil activities on the Exchange during the additional hour and a half of post-Regular Trading Hours proposed under the instant rule filing. The Exchange believes that its current surveillance and other regulatory programs are sufficiently robust and capable of fulfilling the Exchange's regulatory obligations with respect to the proposed extended post-Regular Trading Hours. The Exchange will continue to monitor its market to identify any need for, and to implement, such regulatory enhancements and additional actions as may be necessary from time to time.

2. Statutory Basis

The Exchange believes that the proposed rule change is consistent with the provisions of Section 6(b) of the Act,^[6] in general, and furthers the objectives of Section 6(b)(5) ^[7] in particular in that it is designed, among other things, to promote clarity, transparency and full disclosure, in so doing, to prevent fraudulent and manipulative acts and practices, to promote just and equitable principles of trade, to remove impediments to and perfect the mechanism of a free and open market and a national market system, and, in general, to protect investors and the public interest. Moreover, the proposed rule change is not discriminatory in that all ETP Holders are eligible to participate (or elect to not participate) in effectuating transactions on the Exchange outside of Regular Trading Hours on the same terms and conditions.

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

The Exchange 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 Exchange Act.

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

The Exchange has neither solicited nor received written comments on the proposed rule change.

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

Because the foregoing 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 30 days after the date of this filing, or such shorter time as the Commission may designate, it has become effective pursuant to Section 19(b)(3)(A) of the Act ^[8] and Rule 19b-4(f)(6) thereunder.^[9]

A proposed rule change filed under Rule 19b-4(f)(6) normally may not become operative prior to 30 days after the date of filing.^[10] However, Rule 19b-4(f)(6)(iii) permits the Commission to designate a shorter time if such action is consistent with the protection of investors and the public interest. The Exchange has requested that the Commission waive the 30-day operative delay. The Commission notes that the Exchange's proposal is substantially similar to the rules of other national securities exchanges and does not raise any new substantive issues.^[11] Based on the foregoing, the Commission believes that waiving the 30-day operative delay is consistent with the protection of investors and the public interest and hereby designates the proposal operative upon filing.^[12]

At any time within 60 days of the filing of the proposed rule change, the Commission summarily may temporarily suspend 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.^[13]

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 ( printed page 48404)
• Send an e-mail torule-comments@sec.gov. Please include File Number SR-NSX-2010-10 on the subject line.

Paper Comments

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

All submissions should refer to File Number SR-NSX-2010-10. 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 Web site viewing and printing 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 the filing will also be available for inspection and copying at the principal office of the self-regulatory organization. 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-NSX-2010-10 and should be submitted on or before August 31, 2010.