Patent ID: 8041623

Claim:
A method for displaying market information using a graphical user interface, the method comprising: receiving, at a processor of a client device, market data from an electronic exchange, the market data identifying orders available for a tradeable object at the electronic exchange, each order having a quantity at a price level; displaying, via the client device, a graphical user interface on an electronic display device; displaying, via the client device, a static axis of prices on the graphical user interface, the static axis of prices including a plurality of price levels along the static axis of prices; displaying current order indicators along the static axis of prices via the client device, each displayed current order indicator being associated with an order available to buy or sell the tradeable object during a current time period according to the market data received during the current time period and being displayed at a price level of the static axis of prices corresponding to the price level of the order, where the current order indicators are displayed in a current order region aligned with the static axis of prices; and displaying prior order indicators along the static axis of prices via the client device, each displayed prior order indicator being associated with at least one order previously available to buy or sell the tradeable object during a prior time period according to market data received during the prior time period and being displayed at a price level of the static axis of prices corresponding to the price level of the order, where the prior order indicators are displayed in a prior order region aligned with the static axis of prices.