Abstract: In a trading system for trading securities or the like, traders are given various methods for providing protection from poor executions caused by adverse movements in the market and/or other traders seeking to “game” the system.

Abstract: At least one aspect comprises a method comprising: (a) receiving electronic data describing a trading order from a market participant; (b) associating the trading order with one or more target brokers, (c) selecting with a processing system one or more first trading algorithms from a plurality of available stored algorithms for execution of the trading order; (d) commencing with the processing system execution of the trading order via the one or more first trading algorithms; (e) evaluating with the processing system quality of execution, during the execution, of the trading order via the one or more first trading algorithms; and (f) if the evaluated quality of execution compares unfavorably to a threshold of acceptability, switching with the processing system the execution of the trading order to one or more second trading algorithms, wherein the processing system comprises one or more processors.

Abstract: An aspect comprises: (a) receiving data describing a trading order; (b) checking the data to determine whether a first set of conditions is satisfied, wherein the first set of conditions is associated with a first set of trading algorithms, and determining that the first set of pre-defined conditions is satisfied; (c) selecting first trading algorithms from the first set of trading algorithms, for execution of the trading order; (d) commencing execution of the trading order; (e) checking, during execution of the trading order, status of the trading order and the first set of conditions; (f) if the first set of conditions is no longer satisfied, checking whether a second set of conditions is satisfied; and (g) if the second set of conditions is satisfied, switching execution of the trading order to second trading algorithms selected from a second set of trading algorithms associated with the second set of conditions.

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 exemplary embodiment comprises a method for trading items among a plurality of traders, the method comprising: (a) receiving a first order for at least one item from one of the traders into an electronic trading system, wherein the first order provides priority for said at least one item but does not reserve said at least one item; (b) receiving, from another one of the traders, a second order into the electronic trading system that matches said first order; (c) determining that at least a portion of the first order is available to be filled by at least a portion of the second order; (d) reserving said at least a portion of said first order for execution against said at least a portion of said second order; and (e) executing said at least a portion of said first order against said at least a portion of said second order.

Abstract: An exemplary embodiment comprises: (a) receiving electronic data describing a trading order; (b) selecting one or more first trading algorithms from a plurality of available stored algorithms for execution of the trading order; (c) commencing execution of the trading order via the one or more first trading algorithms; (d) evaluating quality of execution, during the execution, of the trading order via the one or more first trading algorithms; (e) comparing the evaluated quality of execution to a threshold of acceptability based on a prediction of future performance of execution of the trading order by the one or more first trading algorithms; and (f) if the evaluated quality of execution compares unfavorably to the threshold of acceptability, switching the execution of the trading order to one or more second trading algorithms, wherein the processor unit comprises one or more processors.

Abstract: The present invention comprises systems and methods for facilitation of electronic securities trading. A preferred system embodiment comprises a trade facilitation computer system comprising a facilitator module, a financial information exchange server, a transactional database, and an analytics server operative to calculate reference prices for securities. A preferred method embodiment comprises the steps of receiving market data for a security; calculating a reference price for the security; receiving a first order comprising a first price limit and a first quantity limit; receiving a second order contra to the first order and comprising a second price limit and a second quantity limit; and executing a trade comprising the first order and the second order at a price whose difference from the reference price is minimized, wherein the trade complies with the first and second price and first and second quantity limits.

Abstract: Preferred embodiments of the subject invention comprise: (a) electronically receiving securities order-related data regarding a set of securities market participants; (b) electronically storing the received order-related data regarding the set of securities market participants; (c) electronically receiving a securities order-related query (or order parameters) from a first securities market participant; (d) based on the order-related query (or order parameters) received from the first securities market participant and on the securities order-related data regarding the set of securities market participants, computing a dissemination list of securities market participants based on ranking likely contras by probability of execution; and (e) transmitting that dissemination list to an entity who has been granted the privilege of receiving such lists in exchange for being contractually bound to respect confidentiality of the dissemination list and to use the list only for the purpose of sending securities-related i

Abstract: Preferred embodiments of the subject invention overcome the limitations of known trading interest targeting and execution systems by (1) enabling market participants to limit targeting of trading interests to only those other market participants likely to have a significant contra-interest; (2) enabling market participants to ensure that other market participants' disseminated trading interests are legitimate; and (3) enabling auctions among trading interests targeted and validated in this manner. Software of a preferred embodiment identifies likely contra-interests by analyzing information from various sources regarding certified trading interests. Preferred embodiments that route and otherwise manage orders based on trading interest information are also described.

Abstract: In one aspect, the invention comprises a system for enabling a crossing system operator to calculate a rebate payment to a second participant for executing the block order of a first participant based on at least one of: (a) a difference between a benchmark price and an execution price of the block order; (b) total volume of block execution; and (c) an amount that decays exponentially with the time between the first participant's order and the order's execution by a liquidity provider.

Abstract: Preferred embodiments of the subject invention comprise: (a) electronically receiving securities order-related data regarding a set of securities market participants; (b) electronically storing the received order-related data regarding the set of securities market participants; (c) electronically receiving a securities order-related query (or order parameters) from a first securities market participant; (d) based on the order-related query (or order parameters) received from the first securities market participant and on the securities order-related data regarding the set of securities market participants, computing a dissemination list of securities market participants based on ranking likely contras by probability of execution; and (e) transmitting that dissemination list to an entity who has been granted the privilege of receiving such lists in exchange for being contractually bound to respect confidentiality of the dissemination list and to use the list only for the purpose of sending securities-related i

Abstract: Preferred embodiments of the subject invention comprise: (a) electronically receiving securities order-related data regarding a set of securities market participants; (b) electronically storing the received order-related data regarding the set of securities market participants; (c) electronically receiving a securities order-related query (or order parameters) from a first securities market participant; (d) based on the order-related query (or order parameters) received from the first securities market participant and on the securities order-related data regarding the set of securities market participants, computing a dissemination list of securities market participants based on ranking likely contras by probability of execution; and (e) transmitting that dissemination list to an entity who has been granted the privilege of receiving such lists in exchange for being contractually bound to respect confidentiality of the dissemination list and to use the list only for the purpose of sending securities-related i

Abstract: Preferred embodiments of the subject invention comprise: (a) electronically receiving securities order-related data regarding a set of securities market participants; (b) electronically storing the received order-related data regarding the set of securities market participants; (c) electronically receiving a securities order-related query (or order parameters) from a first securities market participant; (d) based on the order-related query (or order parameters) received from the first securities market participant and on the securities order-related data regarding the set of securities market participants, computing a dissemination list of securities market participants based on ranking likely contras by probability of execution; and (e) transmitting that dissemination list to an entity who has been granted the privilege of receiving such lists in exchange for being contractually bound to respect confidentiality of the dissemination list and to use the list only for the purpose of sending securities-related i

Abstract: A graphical user interface is used along with an automated algorithm selection function to enable market participants to initiate automated, multi-algorithm trading strategies through a single drag and drop motion. A symbol representing a security can be dragged and dropped onto an icon representing a tactical or strategic algorithm. Other features of the graphical user interface show information such as the progress of the algorithms.

Abstract: A graphical user interface is used along with an automated algorithm selection function to enable market participants to initiate automated, multi-algorithm trading strategies through a single drag and drop motion. A symbol representing a security can be dragged and dropped onto an icon representing a tactical or strategic algorithm. Other features of the graphical user interface show information such as the progress of the algorithms.

Abstract: In a trading system for trading securities or the like, Contra Targeting is performed by enabling users to expose the liquidity within their order management system without divulging order management system information to a central trading server. Also, virtual orders can be placed and executed which give users price-time priority on an order without reserving the shares until the moment of execution.

Abstract: A graphical user interface is used along with an automated algorithm selection function to enable market participants to initiate automated, multi-algorithm trading strategies through a single drag and drop motion. A symbol representing a security can be dragged and dropped onto an icon representing a tactical or strategic algorithm. Other features of the graphical user interface show information such as the progress of the algorithms.

Abstract: A graphical user interface is used along with an automated algorithm selection function to enable market participants to initiate automated, multi-algorithm trading strategies through a single drag and drop motion. A symbol representing a security can be dragged and dropped onto an icon representing a tactical or strategic algorithm. Other features of the graphical user interface show information such as the progress of the algorithms.

Abstract: Preferred embodiments of the subject invention comprise: (a) electronically receiving securities order-related data regarding a set of securities market participants; (b) electronically storing the received order-related data regarding the set of securities market participants; (c) electronically receiving a securities order-related query (or order parameters) from a first securities market participant; (d) based on the order-related query (or order parameters) received from the first securities market participant and on the securities order-related data regarding the set of securities market participants, computing a dissemination list of securities market participants based on ranking likely contras by probability of execution; and (e) transmitting that dissemination list to an entity who has been granted the privilege of receiving such lists in exchange for being contractually bound to respect confidentiality of the dissemination list and to use the list only for the purpose of sending securities-related i

Abstract: A graphical user interface is used along with an automated algorithm selection function to enable market participants to initiate automated, multi-algorithm trading strategies through a single drag and drop motion. A symbol representing a security can be dragged and dropped onto an icon representing a tactical or strategic algorithm. Other features of the graphical user interface show information such as the progress of the algorithms. Fast switching and safe mode are used to minimize a cost associated with algorithm switching.