Patent ID: 8027910

Claim:
A method of displaying market information relating to a tradable object, the method comprising: receiving, by a computing device, a plurality of market updates from an electronic exchange, where the plurality of market updates provide at least a highest bid price, a lowest ask price, and a last traded price for the tradable object; displaying a market display region by the computing device according to the plurality of market updates, the market display region having a plurality of price levels being axially aligned where a highest bid indicator and a lowest ask indicator change position relative to the price levels; establishing, by the computing device, a time period having at least a first time and a second time earlier than the first time; determining, by the computing device, a highest traded price during the time period according to the plurality of market updates; recording, by the computing device, the highest traded price when the highest traded price is greater than a highest price level of the plurality of price levels of the market display region; displaying, by the computing device, a first indicator at a first location along the price levels when the highest traded price is in the market display region, where the first indicator represents the highest traded price during the time period and the first location corresponds to the highest traded price, and where the first indicator moves relative to the price levels to reflect changes in the highest traded price; determining, by the computing device, a lowest traded price during the time period according to the plurality of market updates; recording, by the computing device, the lowest traded price when the lowest traded price is less than a lowest price level of the plurality of price levels of the market display region; and displaying, by the computing device, a second indicator at a second location along the price levels when the lowest traded price is in the market display region, where the second indicator represents the lowest traded price during the time period and the second location corresponds to the lowest traded price, and where the second indicator moves relative to the price levels to reflect changes in the lowest traded price.