Abstract: A method for providing assured communication in a two-way wireless financial exchange data communication system. An instruction signal for wireless transmission between a first device and a second device includes an assigned sequence number and an adjustable hierarchical value identifying a stage of the instruction signal. The instruction signal is volleyed back-and-forth between the first device and the second device and altered in each subsequent transmission by adjusting the hierarchical value to confirm receipt of the instruction by the second device and adjusting the hierarchical value to verify to the first device that the instruction has been seen by a user of the second device.

Abstract: A method for executing a cross-trade. The method includes the steps of receiving at a computer carried by a floor broker a sell order for execution, the sell order concerning an instrument and including a first set of terms and also a buy order for execution, the buy order concerning the instrument and having a second set of terms which is compatible with the first set of terms. The method permits the floor broker to cross at least a portion of the buy order with the sell order using the computer and to selectively transmit to a remote computer the crossed portion of the buy and sell orders. As a result, a cross-trade is reported to the remote computer and executed.