Patent ID: 7565317

Claim:
A method for displaying market information for a tradeable object listed on an electronic exchange, the method comprising: receiving market data corresponding to the tradeable object via a trading device, the market data comprising substantially real-time order book information for the tradeable object including updates for pending orders for the tradeable object, a last traded price for the tradeable object and an inside market with a highest bid price and a lowest ask price currently available for the tradeable object; generating a dynamic price axis comprising a plurality of prices that correspond to the tradeable object via the trading device, the plurality of prices arranged in sequence in a range including a highest value to a lowest value along the price axis, the range changeable according to updates for the pending orders; displaying the plurality of prices of the dynamic price axis in a screen region of a graphical user interface associated with the trading device such that the last traded price, the highest bid price, or the lowest ask price is displayed at a designated location that is substantially fixed in the screen region; displaying at least one price movement indicator in the screen region of the graphical user interface, the at least one price movement indicator being displayed at a location associated with a particular price of-the plurality of prices of the dynamic price axis; and in response to receiving updated pending orders of the market data, moving, via the trading device, the dynamic price axis with respect to the screen region of the graphical user interface such that the last traded price, the highest bid price, or the lowest ask price remains substantially fixed in the screen region at the designated location, and moving, via the trading device, the location of the at least one price movement indicator with the price axis so that the price movement indicator is being displayed in association with the particular price at a new location in the screen region, the movement of the at least one price movement indicator identifying whether the a market for the tradeable object has moved up or down.