Patent ID: 11922503
Assignee: NYSE GROUP, INC.
Field: IT methods for management (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A computer system comprising:
(a) 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 non-transitory computer-readable storage medium with at least one region for storing executable program code and at least one processor for executing the program code stored in the computer-readable storage medium, the program code defining at least one order matching engine and an order book; and
(b) an interface of the posting market center computer defined by the program code for receiving, from among the plurality of external data sources, displayed orders, partially displayed orders, nondisplayed orders and published market maker quotes, at least one of the nondisplayed orders including a tracking liquidity order, the tracking liquidity order having a price equal to the displayed orders, the published market maker quotes and the partially displayed orders,
the interface configured to receive, from among the plurality of external data sources, an incoming order that is eligible for routing to an away market among the plurality of external data sources,
the at least one order matching engine interacting with the interface and configured to:
store, in the order book, the displayed orders, the partially displayed orders, the nondisplayed orders and the published market maker quotes,
determine to prevent said incoming order that is eligible for routing to the away market from being routed to the away market; and
execute the incoming order against the tracking liquidity order subsequent to the displayed orders, the published market maker quotes and the partially displayed orders without routing said incoming order to the away market.