A system and method for placing a trade order for a tradable instrument on an electronic exchange. The method includes displaying a trade order dartboard on a client terminal where the dartboard displays a market depth of the tradable instrument comprising information representing trade orders at an...http://www.google.com/patents/US20070208647?utm_source=gb-gplus-sharePatent US20070208647 - System and method for placing a trade order for a tradeable instrument on an electronic exchange
