Patent ID: 8015097

Claim:
An electronic trading system comprising at least one computing device, a memory thereof having stored therein a securities trading program for trading individual lots of a security, the trading program operable when executed to cause the system to: receive a plurality of bids and offers for a security; cause an interface screen to be displayed at a user computer station, the interface screen comprising: a) a listing of multiple priced bids for the security, the bid listing comprising at least one bid having a best bid price and at least one off-best bid having a price lower than the best bid price; and b) a listing of multiple priced offers for the security, the offer listing comprising at least one offer having a best offer price and at least one off-best offer having a price higher than the best offer price; the bid and offer listings are to be displayed in an active form to enable the user to select a displayed bid and/or displayed offer at a price off the price of the best displayed bid and/or best displayed offer; receive from the user a selection of at least one off-best bid or off-best offer, and instructions to execute the selected off-best bid or off-best offer; and execute the selected off-best bid or off-best offer at, respectively, a price worse than the best displayed bid or best displayed offer.