Abstract: One exemplary aspect comprises a computer-implemented method comprising: (a) electronically receiving, from a first securities market participant, data including information related to a first order and to one or more group rankings for dissemination; (b) electronically determining with one or more processors, based on data regarding a second securities market participant and the order information and group rankings, whether the second securities market participant has a second order, on the contra side of the first order, and whether, in accordance with the group rankings, the second securities market participant is qualified to receive information about the first order; and (c) after, and only if, the second participant is determined to be qualified, transmitting information sufficient to display to the second securities market participant the information about the first order.

Abstract: An auto-trading strategy for executing an order to buy or sell a specified quantity of a certain item. The strategy utilizes urgency scores rather than time bins. In one embodiment, an urgency score is determined at a certain point in time. The urgency score is a function of a trading target associated with the point in time and the actual number of items that have been traded as of the certain point in time.

Abstract: Systems and methods are provided for maintaining neutrality while trading a list of securities using an algorithmic trading facility coupled with at least one destination. This destination includes at least one alternative trading system (ATS). This facility is coupled, via an electronic data network, to a plurality of trading clients, and configured to receive a trade request to trade a list of securities from a trading client. This request includes user defined trading constraints that are used to generate and transmit trade orders to at least one ATS. The orders are transmitted based on trading data related to the destinations, the trade list, and the trading constraints. The facility can identify each executed trade corresponding to the trade orders and calculate a trade imbalance. The facility can determine whether the trade imbalance exceeds the trading constraints, and reallocate one or more of said submitted orders based on this determination.