Patent Document ID: 6098051
Application ID: 08945074
Patent Flag: 1

Claim One:
1. A computer-implemented crossing network that matches orders for instruments where each order is represented by a satisfaction density profile, the crossing network comprising: a plurality of trader terminals for entering orders in the form of a satisfaction density profile that represents a degree of satisfaction to trade an instrument at a plurality of (price, quantity) combinations, each satisfaction density profile representing either a buy order or a sell order for the instrument; and a matching controller computer coupled to each one of the plurality of trader terminals over a communications network and receiving each satisfaction density profile entered at each one of the plurality of trader terminals, each received satisfaction density profile stored at the matching controller computer in a database as a file, the matching controller computer interacting with each file by pairing each satisfaction density profile representing a buy order with each satisfaction density profile representing a sell order, and thereafter calculating for each satisfaction density profile pair a mutual satisfaction function, each mutual satisfaction function including a plurality of (price, quantity) combinations representing a degree of mutual satisfaction for trading said quantity at said price, and thereafter ranking according to the degree of mutual satisfaction every (price, quantity) combination of every mutual satisfaction function, and matching, in accordance with the ranking, buy orders with sell orders.