Patent ID: 7536345

Claim:
A method of displaying market information and receiving trade orders relating to a tradeable object being traded on an electronic exchange using a graphical user interface and a user input device, the method comprising: dynamically displaying a first indicator in relation with a first price level on a common static price axis, the first indicator associated with a highest bid price available in the market for the tradeable object; dynamically displaying a second indicator in relation with a second price level on the common static price axis, the second indicator associated with a lowest ask price available in the market for the tradeable object; displaying a first quantity entry region aligned with the common static price axis, the first quantity entry region comprising a first plurality of locations, each location in the first quantity entry region corresponding to a different price level of the common static price axis and further corresponding to a first preset order quantity; displaying a second quantity entry region aligned with the common static price axis, the second quantity entry region comprising a second plurality of locations, each location in the second quantity entry region corresponding to a different price level of the common static price axis and further corresponding to a second preset order quantity, wherein the first preset order quantity and the second preset order quantity are different; upon selecting a first location in the first quantity entry region corresponding to a third price level on the common static price axis, setting at a computer device a first next quantity for an order to be sent to the electronic exchange at the third price level to the first preset order quantity; upon selecting a second location in the second quantity entry region corresponding to the third price level, setting at a computer device a second next quantity for the order to be sent to the electronic exchange at the third price level to a sum of the first preset order quantity and the second preset order quantity; and sending the order having the third price level and the second next quantity to the electronic exchange; wherein upon selecting a third location in the first quantity entry region corresponding to a fourth price level on the common static price axis, the first next quantity for an order to be sent to the electronic exchange at the fourth price level is set at a computer device to the first preset order quantity, and upon selecting a fourth location in the second quantity entry region corresponding to the fourth price level, the second next quantity for the order to be sent to the electronic exchange at the fourth price level is set at a computer device to the sum of the first preset order quantity and the second preset order quantity, wherein the first and second indicators can move relative to the common static price axis when the market changes for the tradeable object.