Provided are a financial product transaction management apparatus, system, and transaction management method that allow a trader to properly operate a transaction form including partial commitments. A first financial product transaction management apparatus 1 and a second financial product transaction management apparatus 2 include order information generation units 15 and 24 that generate order information, and a contract management unit 16 that manages execution of financial products. , 25. The contract management units 16 and 25 form a first order based on the order information and a second order in which the position held by the first order is settled by the contract. When only a part of the order is executed, the first order that is executed only by the part and / or the second order that is executed only by the part are split at a predetermined timing after only the part is executed. [Selection] Figure 1
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