Patent ID: 7797221

Claim:
A display device for rendering a user interface comprising: a programmed computer processor for generating said user interface; said user interface comprising: an ask-side table that displays in a multi-column format, a plurality of ask-side entries for a specific security that is offered for sale by a market participant on a securities market, the ask-side entries including a lot size, a reserve size, and an ask price; an ask-side aggregate value for a specific ask-side entry, the ask-side aggregate value is equal to the lot size of the specific ask-side entry summed with the lot sizes of all preceding ask-side entries included in the ask-side table; a bid-side table that displays in a multi-column format, a plurality of bid-side entries for the specific security that is sought for purchase by a market participant on a securities market, the bid-side entries including a lot size, a reserve size, and a bid price with the bid-side display configured to display the bid-side entries multi-column format as essentially a mirror image of the ask-side entries multi-column format; and a bid-side aggregate value for a specific bid-side entry, the bid-side aggregate value is equal to the lot size of the specific bid-side entry summed with the lot sizes of all preceding bid-side entries included in the bid-side table.