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###### Securities and Exchange Commission

          - [Release No. 34-64242; File No. SR-NSX-2011-05]

                    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 April 6, 2011, National Stock Exchange, Inc. 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 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

                    National Stock Exchange, Inc. (“NSX®                    ” or “Exchange”) is proposing to amend its rules to extend a certain pilot program regarding clearly erroneous executions.                

                    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.                

## 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 pilot program currently in effect regarding clearly erroneous executions under NSX Rule 11.19. Currently, unless otherwise extended or approved permanently, this pilot program will expire on April 11, 2011. The instant rule filing proposes to extend the pilot program until the earlier of August 11, 2011 or the date on which the limit up/limit down mechanism to address extraordinary market volatility, if adopted, applies to the Circuit Breaker Securities as defined in Commentary .05 of Rule 11.20.

                    NSX Rule 11.19 (Clearly Erroneous Executions) was approved by the Securities and Exchange Commission (the “Commission”) on September 10, 2010 on a pilot basis to end on December 10, 2010.[3]                                          The pilot program end date was subsequently extended until April 11, 2011.[4]                                          Similar rule changes were adopted by other markets in the national market system in a coordinated manner. During the pilot period, the Exchange, in conjunction with the Commission and other markets, has continued to assess the effectiveness of the pilot program. The Exchange, in consultation with other markets and the Commission, has determined that the duration of this pilot program should be extended until August 11, 2011 or to coincide, if applicable, with the earlier implementation date of the limit up/limit down mechanism. Accordingly,                           ( print page 20764)                        pursuant to the instant rule filing, the expiration date of the pilot program referenced in the first two sentences of Rule 11.19 is proposed to be changed from “April 11, 2011” to the earlier of August 11, 2011 or the date on which the limit up/limit down mechanism, if adopted, applies to the Circuit Breaker Securities.                

#### 2. Statutory Basis

                    The Exchange believes that the proposed rule change is consistent with the provisions of Section 6(b) and Section 11A of the Act,[5]                                          in general, and Section 6(b)(5) of the Act,[6]                                          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 maintain fair and orderly markets and protect investors and the public interest. Moreover, the proposed rule change is not discriminatory in that it uniformly applies to all ETP Holders. The Exchange believes that the extension of the pilot program will promote uniformity among markets with respect to clearly erroneous executions.                

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

The Exchange does not believe that the proposed rule change will impose any inappropriate burden on competition.

### 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 proposed rule change does not: (i) Significantly affect the protection of investors or the public interest; (ii) impose any significant burden on competition; and (iii) become operative for 30 days from the date on which it was filed, or such shorter time as the Commission may designate, it has become effective pursuant to Section 19(b)(3)(A) of the Act [7]                                          and Rule 19b-4 (f)(6)(iii) thereunder.[8]                                          The Exchange has asked the Commission to waive the 30-day operative delay so that the proposal may become operative immediately upon filing. 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 pilot program to continue uninterrupted and help ensure uniformity among the national securities exchanges and FINRA with respect to the treatment of clearly erroneous transactions.[9]                                          Accordingly, the Commission waives the 30-day operative delay requirement and designates the proposed rule change as operative upon filing with the Commission.                

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.

## 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-NSX-2011-05 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-2011-05. 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 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 publicly available. All submissions should refer to File Number SR-NSX-2011-05 and should be submitted on or before May 4, 2011.                

                        For the Commission, by the Division of Trading and Markets, pursuant to delegated authority.[10] 

Cathy H. Ahn,

Deputy Secretary.

# Footnotes

1.                             15 U.S.C. 78s(b)(1).                    
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2.                             17 CFR 240.19b-4 .                    
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3.                                                     *See*                         Securities Exchange Act Release No. 62886 (September 10, 2010), 75 FR 56613 (September 16, 2010) (SR-NSX-2010-07).                    
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4.                                                     *See*                         Securities Exchange Act Release No. 63484 (December 9, 2010), 75 FR 78330 (December 15, 2010) (SR-NSX-2010-16).                    
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5.                             15 U.S.C. 78f(b) and 15 U.S.C. 78k-1, respectively.                    
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6.                             15 U.S.C. 78f(b)(5).                    
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7.                             15 U.S.C. 78s(b)(3)(A).                    
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8.                             17 CFR 240.19b-4(f)(6)(iii). In addition, Rule 19b-4(f)(6)(iii) requires that a self-regulatory organization submit to the Commission written notice of its intent to file the proposed rule change, along with a brief description and text of the proposed rule change, at least five business days prior to the filing of the proposed rule change, or such shorter time as designated by the Commission. The Commission notes that the Exchange has satisfied this requirement.                    
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9.                             For purposes only of waiving the 30-day operative delay, the Commission has considered the proposed rule's impact on efficiency, competition, and capital formation.                         *See*15 U.S.C. 78c(f).                    
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10.                                 17 CFR 200.30-3(a)(12).                        
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[FR Doc. 2011-8865 Filed 4-12-11; 8:45 am]

BILLING CODE 8011-01-P