A system and method for facilitating tri-party repurchase (or other) agreement transactions. A dealer or trader sends instructions to an intermediary third party characterizing a previously agreed-upon set of terms for a repurchase agreement between the dealer and an investor. The parties can thereafter approve or reject the deal allegement via an on-line system. In addition to, or instead of, dealer or investor approval, an instruction matching utility is provided to automatically or substantially automatically match instructions received from dealers and investors related to a plurality of deal allegements. In either case the status of the trade will be displayed to all parties.