Patent ID: 8112347

Claim:
A computer readable medium storing instructions which when executed mitigate the effects of a market spike caused by the triggering of conditional orders for products within a trading unit, the computer readable medium comprising: an evaluation logic that monitors orders submitted to an automated trading engine in an automated matching system, the evaluation logic configured to compare an execution price of a conditional order to a predetermined price range; a delay logic that delays a matching of the orders submitted to the automated trading engine when the execution price lies outside of the predetermined price range; a pricing logic that derives an opening price to be used by the automated trading engine; a timing logic that measures a time interval used to further delay a matching of the orders until the opening price is within a second predetermined price range; and a verification logic that verifies that legs of an implied order are not in a reserved state, the verification logic configured to delay a matching of implied orders until all legs of the implied order are verified as not in the reserved state.