(a) A member may, but is not obligated to, accept a stop order or stop limit order in a security. A "stop order" is an order to buy (or sell) that becomes a market order to buy (or sell) when a transaction occurs at or above (below) the stop price.

Pre-time stamping of order tickets in connection with block positioning is contrary to Rule 4511.

(a) A member holding an open order from a customer or another broker-dealer shall, prior to executing or permitting the order to be executed, reduce, increase, or adjust the price and/or number of shares of such order by an amount equal to the dividend, payment, or distribution on the day that the security is quoted ex-dividend, ex-rights, ex-distribution, or ex-interest, except where a cash dividend or distribution is less than one cent ($

(a) Except as provided herein, a member that accepts and holds an order in an equity security from its own customer or a customer of another broker-dealer without immediately executing the order is prohibited from trading that security on the same side of the market for its own account at a price that would satisfy the customer order, unless it immediately thereafter executes the customer order up to the size and at the same or better price at which it traded for its own account.

(b) A member must have a written methodology in pl

(a)(1) In any transaction for or with a customer or a customer of another broker-dealer, a member and persons associated with a member shall use reasonable diligence to ascertain the best market for the subject security and buy or sell in such market so that the resultant price to the customer is as favorable as possible under prevailing market conditions.

No member or associated person shall engage in conduct that has the intent or effect of splitting any order into multiple smaller orders for execution or any execution into multiple smaller executions for transaction reporting for the primary purpose of maximizing a monetary or in-kind amount to be received by the member or associated person as a result of the execution of such orders or the transaction reporting of such executions.

(a) No member shall establish, increase, decrease or liquidate an inventory position in a security or a derivative of such security based on non-public advance knowledge of the content or timing of a research report in that security.

(b) A member must establish, maintain and enforce policies and procedures reasonably designed to restrict or limit the information flow between research department personnel, or other persons with knowledge of the content or timing of a research report

(a) No member or person associated with a member shall cause to be executed an order to buy or sell a security or a related financial instrument when such member or person associated with a member causing such order to be executed has material, non-public market information concerning an imminent block transaction in that security, a related financial instrument or a security underlying the related financial instrument prior to the time information c

(a) No member or person associated with a member shall, directly or indirectly, effect any transaction or publish a quotation, a priced bid and/or offer, an unpriced indication of interest (including "bid wanted" and "offer wanted" and name only indications), or a bid or offer accompanied by a modifier to reflect unsolicited customer interest, in any security as to which a trading halt is currently in effect, except as permitted under the Regulation NMS Plan to Address Extraordinary Market Volatility.