Patent ID: 7725382

Claim:
A method of canceling an order entered for a commodity at an electronic exchange, the method comprising: receiving data relating to the commodity from the electronic exchange, the data comprising an inside market having a current highest bid price and a current lowest ask price available for the commodity; setting a trade order parameter; dynamically displaying by a computing device a first indicator at a first area corresponding to a first price level along a static price axis, the first indicator being associated with the current highest bid price for the commodity; dynamically displaying by the computing device a second indicator at a second area corresponding to a second price level along the static price axis, the second indicator being associated with the current lowest ask price for the commodity; updating the dynamic display of the first and second indicators such that at least one of the first and second indicators is moved relative to the static price axis to a different area corresponding to a different price level along the static price axis in response to the receipt of new data representing a new inside market; displaying by the computing device an order entry region comprising a plurality of areas, each area corresponding to a price level along the static price axis and each area being selectable by a user input device so as to receive a command to send an order message based on the trade order parameter and the price level that corresponds with the selected area to the electronic exchange; displaying by the computing device an entered order indicator at a location corresponding to a particular price level along the static price axis, the entered order indicator being associated with an order entered at the electronic exchange at the particular price level; and receiving a single action command that selects the location associated with the entered order indicator so as to cancel the order at the electronic exchange.