A financial information providing system 1 includes a synchronous distribution node 10, asynchronous distribution node 20, and data providing system 30, client terminal 40. The synchronous distribution node 10 and asynchronous distribution node 20 distribute messages including financial information. The data providing system 30 edits the messages distributed by the synchronous distribution node 10 and asynchronous distribution node 20 and transmits an edited message to the client terminal 40. Each server 31 of the data providing system 30 adds a group number and sequence number to a message distributed by the synchronous distribution node 10 and adds a sequence number to a message distributed by the asynchronous distribution node 20.