4200A. DEFINITIONS

(1) "Act" means the Securities Exchange Act of 1934.

(2) "ADF-eligible security" means an NMS stock as defined in SEC Rule 600(b)(47).

(3) "ADF Market Participant" or "Market Participant" means a Registered Reporting ADF Market Maker, or a Registered Reporting ADF ECN.

(4) "ADF Trading Center" means a Registered Reporting ADF Market Maker, or a Registered Reporting ADF ECN that is a "Trading Center," as defined in SEC Rule 600(b)(78), and that is certified, pursuant to Rule 4300A, to display its quotations or orders through the ADF.

(5) "Certification Record" means the document that an ADF Trading Center must execute and continue to comply with, pursuant to Rule 4300A, to display its quotations through the ADF.

(6) "CQS security" is a security that is eligible for inclusion in the Consolidated Quotation Plan and reported to the Consolidated Tape in accordance with the Consolidated Tape Association Plan. These securities include all common stocks, preferred stocks, long-term warrants, and rights entitling the holder to acquire an eligible security, listed or admitted to unlisted trading privileges on the American Stock Exchange or the New York Stock Exchange, and securities listed on regional stock exchanges which have been designated by such regional exchange as eligible for reporting to the Consolidated Tape.

(7) "Initial Public Offering" shall mean a security is subject to an initial public offering if: (1) the offering of the security is registered under the Securities Act of 1933; and (2) the issuer of the security, immediately prior to filing the registration statement with respect to such offering, was not subject to the reporting requirements of Section 13 or 15(d) of the Act.

(8) "Nasdaq" means the NASDAQ Stock Market, LLC other than any facilities operated by The NASDAQ Stock Market, LLC on behalf of NASD.

(9) "Nasdaq security" means any security listed on The NASDAQ Stock Market, LLC.

(10) "Non-Registered Reporting Member" means a member of NASD that is not a Registered Reporting Member.

(11) "Normal unit of trading" means 100 shares of a security unless, with respect to a particular security, the market where the security is listed determines that a normal unit of trading shall constitute other than 100 shares. If a normal unit of trading is other than 100 shares, a special identifier shall be appended to the issuer's symbol.

(12) "Otherwise than on an exchange" means a trade effected by an NASD member otherwise than on or through the facilities of a national securities exchange. The determination of what constitutes a trade "on or through" a particular national securities exchange shall be determined by that exchange in accordance with all applicable statutes, rules and regulations, and with any necessary SEC approval.

(13) "Registered Reporting ADF ECN" means a member of NASD that is an electronic communications network ("ECN") that elects to display orders in NASD's ADF. A member shall cease being a Registered Reporting ADF ECN when it has withdrawn or voluntarily terminated its quotations on the ADF or when its quotations have been suspended or terminated by action of NASD. This term also shall include an NASD member that is an alternative trading system ("ATS") that displays orders in the ADF.

(14) "Registered Reporting ADF Market Maker" means a member of NASD that is registered as an NASD market maker in a particular designated security and, with respect to that security, holds itself out (by entering quotations in NASD's Alternative Display Facility) as being willing to buy and sell such security for its own account on a regular and continuous basis. A member is a Registered Reporting ADF Market Maker in only those designated securities for which it is registered as an ADF market maker. A member shall cease being a Registered Reporting ADF Market Maker in a designated security when it has withdrawn or voluntarily terminated its quotations in that security on the ADF or when its quotations have been suspended or terminated by action of NASD.

(15) "Registered Reporting Member" means a Registered Reporting ADF Market Maker or Registered Reporting ADF ECN.

(16) "SEC Rule 100," "SEC Rule 101," "SEC Rule 103," and "SEC Rule 104" mean the rules adopted by the Commission under Regulation M, and any amendments thereto.

(17) "Stabilizing bid" means the terms "stabilizing" or to "stabilize" as defined in SEC Rule 100.

(18) "Stop Stock Price" means the specified price at which a member and another party agree a Stop Stock Transaction shall be executed, and which price is based upon the prices at which the security is trading at the time the order is received by the member, taking into consideration that the specified price may deviate from the current market prices to factor in the size of the order and the number of shares available at those prices.

(19) "Stop Stock Transaction" means any transaction that meets both of the following conditions:

(20) "Underwriting Activity Report" is a report provided by the Market Regulation Department of NASD in connection with a distribution of securities subject to SEC Rule 101 pursuant to NASD Rule 2710(b)(11).