The disclosed systems and methods relate to allowing trading of over the counter (“OTC”) foreign exchange (“FX”) contracts on a centralized matching and clearing mechanism, such as that of the Chicago Mercantile Exchange's (“CME”'s) futures exchange system (the “Exchange”). The disclosed...http://www.google.co.uk/patents/US20070118459?utm_source=gb-gplus-sharePatent US20070118459 - System and method for centralized clearing of over the counter foreign exchange instruments