      By knowing which market makers have been at the inside bid and ask themost times, second most times, etc., you can quickly determine who the keyplayers in a stock are. With this tool, you will be able to evaluate therelative weight that each market maker possesses in any stock. If a pieceof news comes out on a stock that you have never heard of before, a quickglance at this decision support tool will reveal what takes traders days orweeks of close attention to determine. In conjunction with theaforementioned example, this tool can be used to further confirm supply anddemand pressure in a stock and enable the trader to make a quick decisionto act or not act. If a key market maker is reloading at the ask and otherkey market makers are right behind him, it is a clear indication ofresistance to upward movement.