Abstract: The present invention relates to a method and system for electronically trading a financial instrument. The method includes entering a bid order for the financial instrument and placing the bid order in a bid queue associated with a buyer who maintains a list of sellers to sell the financial instrument to. Then, entering an ask order for the financial instrument and placing the ask order in an ask queue associated with a seller who maintains a list of buyers to buy the financial instrument from. Next, the present invention will match the bid order and the ask order and to execute a trade between the buyer and the seller. Lastly, the trade is executed if the bid order is not less than the ask order, and if the buyer is on the list of buyers and the seller is on the list of sellers.

Abstract: The present invention discloses a system for real-time trading of options contracts between a plurality of traders over a computer network. The system includes a computer network, a market server, and two or more trader clients. The market server is operably connected to the computer network. The two or more trader clients are operably connected to the computer network such that each of the trader clients can be placed into operable communication with the market server. Each of the trade clients facilitates entry and transmission of commands in substantially real-time to the market server and display of substantially real-time updates from the market server. The trader client commands include trade orders wherein the market server distributes the trade orders and any executions of same to each of the trader clients in substantially-real time.

Abstract: The present invention relates to a method and system for electronically trading a financial instrument. The method includes entering a bid order for the financial instrument and placing the bid order in a bid queue associated with a buyer who maintains a list of sellers to sell the financial instrument to. Then, entering an ask order for the financial instrument and placing the ask order in an ask queue associated with a seller who maintains a list of buyers to buy the financial instrument from. Next, the present invention will match the bid order and the ask order and to execute a trade between the buyer and the seller. Lastly, the trade is executed if the bid order is not less than the ask order, and if the buyer is on the list of buyers and the seller is on the list of sellers.

Abstract: The present invention relates to a method and system for electronically trading a financial instrument. The method includes entering a bid order for the financial instrument and placing the bid order in a bid queue associated with a buyer who maintains a list of sellers to sell the financial instrument to. Then, entering an ask order for the financial instrument and placing the ask order in an ask queue associated with a seller who maintains a list of buyers to buy the financial instrument from. Next, the present invention will match the bid order and the ask order and to execute a trade between the buyer and the seller. Lastly, the trade is executed if the bid order is not less than the ask order, and if the buyer is on the list of buyers and the seller is on the list of sellers.

Abstract: The present invention discloses a system for real-time trading of options contracts between a plurality of traders over a computer network. The system includes a computer network, a market server, and two or more trader clients. The market server is operably connected to the computer network. The two or more trader clients are operably corrected to the computer network such that each of the trader clients can be placed into operable communication with the market server. Each of the trade clients facilitates entry and transmission of commands in substantially real-time to the market server and display of substantially real-time updates from the market server. The trader client commands include trade orders wherein the market server distributes the trade orders and any executions of same to each of the trader clients in substantially-real time.

Abstract: The present invention relates to a method and system for electronically trading a financial instrument. The method includes entering a bid order for the financial instrument and placing the bid order in a bid queue associated with a buyer who maintains a list of sellers to sell the financial instrument to. Then, entering an ask order for the financial instrument and placing the ask order in an ask queue associated with a seller who maintains a list of buyers to buy the financial instrument from. Next, the present invention will match the bid order and the ask order and to execute a trade between the buyer and the seller. Lastly, the trade is executed if the bid order is not less than the ask order, and if the buyer is on the list of buyers and the seller is on the list of sellers.