Patent ID: 7593887

Claim:
A system for displaying market transaction information received from a market data system comprising: an exchange server operatively coupled to the market data system and adapted to receive transaction information and order book information relating to at least one exchange-listed tradeable object, the transaction information including price and volume of at least one executed trade of the exchange-listed tradeable object and the order book information identifying at least one open order for the exchange-listed tradeable object; and a trader workstation operatively coupled to said exchange server and adapted to: display for each trade of a user-selected exchange-listed tradeable object within a user-selected range of trades represented in a selectable portion of the transaction information, an indicium representing the price of such trade; determine whether the trade was seller-initiated or buyer-initiated according to the transaction information and the order book information, and to control appearance of the indicia to distinguish between buyer-initiated and seller-initiated trades, an open sell order in the order book being bought comprising a buyer-initiated trade and an open buy order in the order book being sold comprising a seller-initiated trade; and display at least a subset of the order book information relating to the user-selected exchange-listed tradeable object adjacent the indicia.