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Tracking liquidity order

  • US 10,614,520 B2
  • Filed: 05/03/2006
  • Issued: 04/07/2020
  • Est. Priority Date: 05/05/2005
  • Status: Active Grant
First Claim
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1. A computer-implemented method comprising:

  • in a computing system comprising a posting market center computer coupled to a plurality of external data sources via a network, the posting market center computer having at least one memory with at least one region for storing executable program code and at least one processor for executing the program code stored in the memory, the program code defining at least one interface, at least one order matching engine, and at least one order book;

    receiving, via the at least one interface from among the external data sources, displayed and nondisplayed orders, at least one of the nondisplayed orders comprising a tracking liquidity order having a price and size component, the tracking liquidity order configured to only execute on the posting market center computer, no price nor size component of the tracking liquidity order being displayed on the order book;

    storing, by the order matching engine in the order book, the displayed and nondisplayed orders according to a ranking index and a price index, the ranking index being based on an extent of disclosure of the displayed and nondisplayed orders, the tracking liquidity order positioned in the order book according to a tracking liquidity order ranking and the price of the tracking liquidity order;

    receiving, via the at least one interface, from among the external data sources, an incoming order that is eligible for routing to an away market among the external data sources; and

    determining, by the order matching engine to prevent said incoming order that is eligible for routing to the away market from being routed to the away market by;

    (i) interrogating the price index of the order book corresponding to a price of the incoming order to identify a contra side order in the order book;

    (ii) interrogating the ranking index of the order book to determine whether the contra side order is the tracking liquidity order;

    (iii) determining that a size of the incoming order is not greater than the size component of the tracking liquidity order based on information associated with the tracking liquidity order in the order book; and

    (iv) executing said incoming order against the tracking liquidity order without routing said incoming order to the away market.

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