Patent ID: 7603290

Claim:
A system for facilitating order entry, the system comprising a first computer system having one or more computers and operable to: generate a display of at least one side of a market comprising two sides, the displayed side of the market comprising offers from all market participants of the displayed side, each offer comprising an offered price and an offered quantity, the display indicating offered quantities available at various offered prices from all market participants of the displayed side; access a quantity specified by a user, the user-specified quantity being less than the cumulative offered quantity from the displayed offers; calculate an average price at which the user-specified quantity is available based on the offered quantity and the offered price from all market participants of the displayed side; indicate the calculated average price, within the display; receive an instruction from the user to generate one or more orders for the user-specified quantity at the calculated average price, for communication to a second computer system having one or more computers supporting the market for matching with one or more corresponding offers; in response to receiving the instruction from the user, generate one or more orders for the user-specified quantity at the calculated average price; and communicate the one or more generated orders to the second computer system having one or more computers supporting the market for matching with one or more corresponding offers.