Patent ID: 8473402
Filing Date: 2013-06-25
Classification: G06Q

Abstract:
1. A method comprising: storing, by an exchange computer system comprising one or more computers, information associated with perpetual futures contracts, wherein the stored information comprises information indicating allowable termination times; receiving, by the exchange computer system, notifications of intent to terminate a portion of the perpetual futures contracts, wherein each perpetual futures contract in a first subset of the portion represents a first position and each perpetual futures contract in a second subset of the portion represents a second position, wherein the first position is one of a long or a short position and the second position is the other of a long or a short position, and wherein there are more perpetual futures contracts in the first subset than in the second subset; determining, by the exchange computer system, that each of the notifications represents an intent to terminate a perpetual futures contract on a current opt-out date that corresponds to an allowable termination time; matching each of the perpetual futures contracts in the second subset with one of the perpetual futures contracts in the first subset, thereby leaving one or more excess perpetual futures contracts of the first subset not matched against a perpetual futures contract of the second subset; performing, by the exchange computer system, one of the following with regard to each of the excess perpetual futures contracts transmitting, by the exchange computer system, confirmations of the matches.