To provide a framework having a function capable of grasping the transaction tendency of general investors together with a transaction execution function provided in a securities exchange, capable of executing transaction of a stock below a unit across plural stock companies.

This system is equipped with an acceptance registration means for accepting a dealing order of securities or the like from a customer through a stock company, and registering the order in a transaction information storage means, an execution means for executing price matching and determining an execution price based on the dealing order registered in the transaction information storage means, and executing transaction based on the determined execution price, and a management means for storing by correlating right information such as transaction data including the dealing order of the customer, securities held by the customer or the like with characteristic information of the customer. The management means is constituted so that the right information such as the securities or the like can be managed in a sub-unit smaller than a distribution unit.