March 14, 2012.
Pursuant to Section 19(b)(1) of the Securities Exchange Act of 1934 (“Act”),
and Rule 19b-4 
thereunder, notice is hereby given that on March 8, 2012, NASDAQ OMX PHLX LLC (“Phlx” or “Exchange”) filed with the Securities and Exchange Commission (“SEC” or “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 amend Exchange Rule 1080, Commentary .08, Complex Orders on Phlx XL, by adopting new Rule 1080.08(i), which would establish an Acceptable Complex Execution Parameter (“ACE Parameter”), a price range outside of which a Complex Order (as defined below) will not be executed by the PHLX XL® automated options trading system 
following a Complex Order Live Auction (“COLA”), as defined below.
The text of the proposed rule change is available on the Exchange's Web site at http://www.nasdaqtrader.com/micro.aspx?id=PHLXRulefilings, 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 aspects of such statements.
A. Self-Regulatory Organization's Statement of the Purpose of, and the Statutory Basis for, the Proposed Rule Change
The purpose of the proposed rule change is to establish the ACE Parameter in order to prevent Complex Orders 
from automatically executing at potentially erroneous prices. The ACE Parameter feature is designed to help maintain a fair and orderly market. The Exchange believes that the ACE Parameter feature will assist with the maintenance of fair and orderly markets by helping to mitigate the potential risk of executions at prices which are extreme and potentially erroneous.
The ACE Parameter feature is used to define a price range outside of which a Complex Order will not be executed following a COLA.
The ACE Parameter is a percentage defined by the Exchange on an issue-by-issue basis. The ACE Parameter percentage shall not be less than 3 percent. The ACE Parameter price range is based on the Complex National Best Bid or Offer (“cNBBO”) 
at the time an order would be executed. A Complex Order to sell will not be executed at a price that is lower than the cNBBO bid by more than the ACE Parameter percentage. A Complex Order to buy will not be executed at a price that is higher than the cNBBO offer by more than the ACE Parameter percentage. A Complex Order or a portion of a Complex Order that cannot be executed within the ACE Parameter pursuant to the proposed rule will be placed on [sic] Exchange's Complex Limit Order Book (“CBOOK”).
For example, assume the ACE parameter is set at 10%, and a PHLX XL participant submits a Complex Order with a strategy to buy Series A and buy Series B.
A complex order is received to buy 30 Series A and buy 30 Series B (30 units of the strategy) for a net debit of $8.40 and a COLA is initiated. At the end of the COLA, the market is:
NBBO for Series A is $4.50-$4.60, size 10 × 10.
NBBO for Series B is $2.90-$3.00, size 10 × 10.
cNBBO for the strategy is $7.40-$7.60.
Executions to buy the strategy (buy Series A and buy Series B) will occur up to $8.36 ($7.60 + [0.10 × $7.60]). Any remainder of the order will be placed on the CBOOK at $8.40.
The Exchange believes a minimum 3 percent level 
is reasonable and appropriate because a marketable order that would deviate from the cNBBO by 3% or more may be indicative of an extreme or potentially erroneous price, and an Exchange participant would likely want to evaluate the affected Complex Order further following the COLA before receiving an automatic execution. The Exchange also believes that a 3 percent minimum is reasonable and appropriate in comparison to other price check parameters currently in existence on at least one other U.S. options exchange.
The Exchange will issue an Options Trader Alert (“OTA”) to membership indicating the issue-by-issue ACE Parameter percentages. The Exchange will also maintain a list of ACE Parameter percentages on its Web site.
2. Statutory Basis
The Exchange believes that the proposed rule change is consistent with the provisions of Section 6 of the Act,
in general and with Section 6(b)(5) of the Act,
in that it is designed to promote just and equitable principles of trade, to foster cooperation and coordination with persons engaged in regulating, clearing, settling, processing information with respect to, and facilitating transactions in securities, 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; and is not designed to permit unfair discrimination between customers, issuers, brokers, or dealers, or to regulate by virtue of any authority conferred by the Act matters not related to the purposes of the Act or the administration of the Exchange.
The ACE Parameter feature is designed to protect investors from extreme and potentially erroneous executions of their Complex Orders. The Exchange also believes the ACE Parameter feature should assist with the maintenance of fair and orderly markets by helping to mitigate the potential risks of receiving executions at prices that are extreme and potentially erroneous.
Finally, the proposed rule change should also make it easier for users to read and understand the operation of PHLX XL as it relates to the execution of Complex Orders, and will fully describe the operation of the new ACE Parameter feature, all to the benefit of PHLX XL participants, and to the options markets as a whole.
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 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
No written comments were either solicited or 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 after the date of the filing, or such shorter time as the Commission may designate, it has become effective pursuant to Section 19(b)(3)(A) of the Act 
and Rule 19b-4(f)(6) 
Phlx has asked the Commission to accelerate the 30-day operative delay.
The Commission finds that accelerating the 30-day operative delay is consistent with the protection of investors and the public interest because the ACE Parameter is designed to prevent the automatic execution of Complex Orders at potentially extreme or erroneous prices.
Accordingly, the Commission designates the proposal operative upon filing.
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. If the Commission takes such action, the Commission shall institute proceedings to determine whether the proposed rule should be approved or disapproved.
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:
- 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-2012-31. This file number should be included on the subject line if email 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-Phlx-2012-31, and should be submitted on or before April 11, 2012.
For the Commission, by the Division of Trading and Markets, pursuant to delegated authority.
Kevin M. O'Neill,
[FR Doc. 2012-6764 Filed 3-20-12; 8:45 am]
BILLING CODE 8011-01-P