SYSTEM AND METHOD FOR RAPIDLY CALCULATING RISK IN AN ELECTRONIC TRADING EXCHANGE

Latency in electronic trading is dramatically reduced by delaying trade order validation until a match or trade can potentially occur. If a new order does not meet the matching criteria for an existing order in an order book, then the new order is stored in the order book without performing validation processing in a first example embodiment. In a second example embodiment, the order is stored in the order book before validation has completed. But if a new order meets matching criteria for an existing order stored in an order book, then order validation processing is performed for both of the matching orders. Once the order validation processing is successfully completed for both of the matching orders, then the trade is executed. Order validation processing includes both risk calculations and account validations, (e.g., checking to ensure the party has the necessary money or collateral if a buyer or is the owner if a seller). If the order validation processing is not successfully completed for both of the matching orders, then the trade is rejected.