Patent ID: 7734535

Claim:
A method for displaying market information and receiving trade orders relating to a tradeable object being traded on an electronic exchange, comprising: dynamically displaying, by a computing device, a display region comprising a plurality of locations for displaying market information relating to the tradeable object, wherein each location corresponds to a price level along a price axis; displaying, by the computing device, a first order entry region aligned with the price axis, the first order entry region comprising a first plurality of locations, wherein each location in the first order entry region corresponds to a price level along the price axis, and wherein each location in the first order entry region corresponds to a first predefined order quantity for orders to be placed at a price level corresponding to each location; and displaying, by the computing device, a second order entry region aligned with the price axis, the second order entry region comprising a second plurality of locations, wherein each location in the second order entry region corresponds to a price along the price axis, wherein each location in the second order entry region corresponds to a second predefined order quantity for orders to be placed at a price level corresponding to each location, and wherein the second predefined order quantity and the first predefined order quantity are different, wherein a first location in the first order entry region is configured to receive a first command that selects the first location to set, by the computing device, both a first price level and the first predefined order quantity for a first order to buy or sell the tradeable object and to send the first order to the electronic exchange, wherein the first price level corresponds to the first location, and wherein a second location in the second order entry region is configured to receive a second command that selects the second location to set, by the computing device, both a second price level and the second predefined order quantity for a second order to buy or sell the tradeable object and to send the second order to the electronic exchange, wherein the second price level corresponds to the second location.