PURPOSE: To efficiently operate the trading system by displaying trading information outputted from an information source terminal on a display device connected to a system console for automatic display.

CONSTITUTION: This system is equipped with a system console 7 for automatic display to output a connecting request and key data according to a reserved program and a work station controller 9 for automatic display control to receive these data and to output them to a main control unit 3. Further, a virtual display 10 connected to the work station controller 9 is provided to display video information from a connected terminal equipment 1 while switching the information at a video switch unit, and a display device 8 connected to the system console for automatic display is provided to display the same video information. Thus, since the video information is outputted from the connected terminal to the virtual display 10 and the information is also outputted to the display device 8 and displayed, display at the display device can be automated.