The present invention relates to the case where market is anticipating that the rise than expected, to improve the order function for multiple order that takes into account both the case that expects to fall, increasing the investor of convenience. A market transaction support server 10, orders and order generation means, to each other that the current price is generated as a condition of the establishment of the order of the high first order of the order and the first order when you match the starting point price expensive combination orders and, to each other two of the second order with different order price that is generated the establishment of the order of the first order of the order and the first order of small amount as a condition for including an order for two different of the second order of price of the order control means for generating an order generating means and apply small amount combination comprising an order, the order and small amount combinations apply high combinations, when the order of the first order in either one is established, the in the other and an order processing means that one order of order to cancel or pause.FIELD 1
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