Abstract: A transaction management device of executing plural if-done-orders in parallel. An order information generation unit of the device generates plural order information groups each including a first order for placing one of a buy or sell orders at a first order price, a second order for placing the other of these orders at a second order price, and a stop loss order for placing the other of these orders at a stop loss order price. This unit acquires the upper limit price for transactions, the lower limit price for transactions, and the number of simultaneously generated order information groups, and calculates the first and second order prices in such a manner that the price difference between the first orders is constant, the price difference between the second orders is constant, and the price difference between the first and the second orders belonging to the same group is constant.

Abstract: A transaction management device can executed, with a simple procedure, a plurality of if-done orders in parallel and can reduce the risk of the client. In the transaction management device, an order receiving unit receives buy and sell order application information from client terminals. An order information generation unit generates a plurality of order information groups for each of the items of the buy and sell order application information received by the order receiving unit, the order information groups each including: a first order for placing one of a buy order or a sell order at a first order price; a second order for placing the other one of the buy or the sell order at a second order price; and a stop order for placing the other one of the buy order or the sell order at the stop order price. The first order price, the second order price, and the stop order price are set to different values for each of the order information groups.

Abstract: A transaction management device of executing plural if-done-orders in parallel. An order information generation unit of the device generates plural order information groups each including a first order for placing one of a buy or sell orders at a first order price, a second order for placing the other of these orders at a second order price, and a stop loss order for placing the other of these orders at a stop loss order price. This unit acquires the upper limit price for transactions, the lower limit price for transactions, and the number of simultaneously generated order information groups, and calculates the first and second order prices in such a manner that the price difference between the first orders is constant, the price difference between the second orders is constant, and the price difference between the first and the second orders belonging to the same group is constant.

Abstract: A transaction management device can executed, with a simple procedure, a plurality of if-done orders in parallel and can reduce the risk of the client. In the transaction management device, an order receiving unit receives buy and sell order application information from client terminals. An order information generation unit generates a plurality of order information groups for each of the items of the buy and sell order application information received by the order receiving unit, the order information groups each including: a first order for placing one of a buy order or a sell order at a first order price; a second order for placing the other one of the buy or the sell order at a second order price; and a stop order for placing the other one of the buy order or the sell order at the stop order price. The first order price, the second order price, and the stop order price are set to different values for each of the order information groups.