Patent ID: 7233923

Claim:
A method for matching a purchase or sale of a first item with a respective sale or purchase of a second item and a third item, wherein each of the first item, the second item, and the third item has a first date and a second date, the method comprising: receiving first information relating to the purchase or sale of the first item, second information relating to the respective sale or purchase of the second item, and third information relating to the respective sale or purchase of the third item, wherein the first information indicates whether the first item is to be bought or sold, the second information indicates that the second item is to be respectively sold or bought, and the third information indicates that the third item is to be respectively sold or bought, and wherein the first information, the second information, and the third information respectively define the first date and the second date of the first item, the second item, and the third item such that the first and second items are mis-matched, the first and third items are mis-matched and the second and third items are mis-matched; using a processor to determine that the first date of the first item occurs within a time period from the first date of the second item, and that the second date of the second item occurs within a time period from the first date of the third item; and designating the first item, the second item, and the third item as forming at least a portion of a transaction match when the first date of the first item occurs within a time period from the first date of the second item, and the second date of the second item occurs within a time period from the first date of the third item.