Patent ID: 8032443

Claim:
An electronic trading system comprising: a memory; and at least one processor, the at least one processor for executing instructions for displaying a graphical user interface, said interface for use in trading a foreign currency option, the graphical user interface comprising: a countdown timer, currency pair information and trade action buttons, the countdown timer showing time left for a join the trade opportunity, said join the trade opportunity generated in response to said at least one processor: executing a trade of a foreign currency option between a buyer and a seller; locking the electronic trading system with respect to the traded foreign currency option to prevent additional participants from joining the trade while the buyer and seller are queried to trade additional volume of the foreign currency option; querying the buyer whether the buyer desires to buy or sell additional volume of the option; and querying the seller Whether the seller desires to sell or buy additional volume of the option; wherein the processor is configured to start the join the trade opportunity by authorizing additional participants to join the trade; and to start the countdown timer; wherein the join the trade opportunity comprises querying at least a portion of the additional participants to determine whether each of the additional participants desires to buy or sell a volume of the option.