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###### Securities and Exchange Commission

          - [Release No. 34-64239; File No. SR-Phlx-2011-45]

                    Pursuant to Section 19(b)(1) of the Securities Exchange Act of 1934 (“Act”),[1]                                          and Rule 19b-4  thereunder,[2]                                          notice is hereby given that on March 31, 2011, NASDAQ OMX PHLX LLC (“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 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 the Substance of the Proposed Rule Change

The Exchange proposes to extend the pilot period of recent amendments to Rule 3312, concerning clearly erroneous transactions, so that the pilot will now expire on the earlier of August 11, 2011 or the date on which a limit up/limit down mechanism to address extraordinary market volatility, if adopted, applies.

                    The text of the proposed rule change is below. Proposed new language is                     *italicized;*                     proposed deletions are in [brackets].                

* * * * *

#### Rule 3312. Clearly Erroneous Transactions

                    The provisions of paragraphs (a)(2)(C), (b), and (c)(1) of this Rule, as amended by SR-Phlx-2010-125, shall be in effect during a pilot period set to end on                     *the earlier of August 11, 2011 or the date on which a limit up/limit down mechanism to address extraordinary market volatility, if adopted, applies*                     [April 11, 2011]. If the pilot is not either extended or approved permanent by                     *the earlier of August 11, 2011 or the date on which a limit up/limit down mechanism to address extraordinary market volatility, if adopted, applies*                     [April 11, 2011], the prior versions of paragraphs (a)(2)(C), (b), and (c)(1) shall be in effect.                

(a)-(f) No change.

* * * * *

## 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 aspects of such statements.

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

#### 1. Purpose

                    On September 10, 2010, the Commission approved, for a pilot period to end December 10, 2010, a proposed rule change submitted by the BATS                           ( print page 20790)                        Exchange, Inc., NASDAQ OMX BX, Inc., Chicago Board Options Exchange, Incorporated, Chicago Stock Exchange, Inc., EDGA Exchange, Inc., EDGX Exchange, Inc., International Securities Exchange LLC, The NASDAQ Stock Market LLC, New York Stock Exchange LLC, NYSE Amex LLC, NYSE Arca, Inc., and National Stock Exchange, Inc. (collectively, the “Exchanges”), to amend certain of their respective rules to set forth clearer standards and curtail discretion with respect to breaking erroneous trades.[3]                                          The changes were adopted to address concerns that the lack of clear guidelines for dealing with clearly erroneous transactions may have added to the confusion and uncertainty faced by investors on May 6, 2010. In connection with its resumption of trading of NMS Stocks through PSX, the Exchange amended Rule 3312 to conform it to the newly-adopted changes to the Exchanges' clearly erroneous rules, so that it could participate in the pilot program.[4]                                          On December 7, 2010, the Exchange filed an immediately effective filing to extend the existing pilot program for four months, so that the pilot would expire on April 11, 2011.[5] 

The Exchange believes that the pilot program has been successful in providing greater transparency and certainty to the process of breaking erroneous trades. The Exchange also believes that a four month extension of the pilot is warranted so that it may continue to monitor the effects of the pilot on the markets and investors, and consider appropriate adjustments, as necessary. The Exchange notes, however, that the Exchanges are developing a “limit up/limit down” mechanism to reduce the negative impacts of sudden, unanticipated price movements in securities traded on the Exchanges. Under such a mechanism, trades in a security outside a price band would not be allowed, thus eliminating clearly erroneous transactions from occurring altogether. As such, the proposed extension may be shorter in duration should the Exchange adopt a limit up/limit down mechanism to address extraordinary market volatility. Accordingly, the Exchange is filing to further extend the pilot program until the earlier of August 11, 2011 or the date on which a limit up/limit down mechanism to address extraordinary market volatility, if adopted, applies.

#### 2. Statutory Basis

                    The statutory basis for the proposed rule change is Section 6(b)(5) of the Securities Exchange Act of 1934 (the “Act”),[6]                                          which requires the rules of an exchange 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. The proposed rule change also is designed to support the principles of Section 11A(a)(1) [7]                                          of the Act in that it seeks to assure fair competition among brokers and dealers and among exchange markets. The Exchange believes that the proposed rule meets these requirements in that it promotes transparency and uniformity across markets concerning decisions to break erroneous trades.                

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

The Exchange does not believe that the proposed rule change will result in any burden on competition that is not necessary or appropriate in furtherance of the purposes of the Act, as amended.

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

Written comments were neither solicited nor received.

## 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 [8]                                          and Rule 19b-4(f)(6)(iii) thereunder.[9]                                          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.[10]                                          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-Phlx-2011-45 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-Phlx-2011-45. 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                           ( print page 20791)                        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 website 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-Phlx-2011-45 and should be submitted on or before May 4, 2011.                

                        For the Commission, by the Division of Trading and Markets, pursuant to delegated authority.[11] 

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.                             Securities Exchange Act Release No. 62886 (September 10, 2010), 75 FR 56613 (September 16, 2010).                    
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4.                             Securities Exchange Act Release No. 63023 (September 30, 2010), 75 FR 61802 (October 6, 2010).                    
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5.                             Securities Exchange Act Release No. 63491 (December 9, 2010), 75 FR 78297 (December 15, 2010).                    
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6.                             15 U.S.C. 78f(b)(5).                    
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7.                             15 U.S.C. 78k-1(a)(1).                    
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8.                             15 U.S.C. 78s(b)(3)(A).                    
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9.                             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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10.                             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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11.                                 17 CFR 200.30-3(a)(12).                        
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[FR Doc. 2011-8831 Filed 4-12-11; 8:45 am]

BILLING CODE 8011-01-P