The Intraday Volume Change (IVC) indicator for TradeStation® lets you see how the current intraday volume compares to the same time period from prior days. For example, you can see if the volume for a particular 30 minute bar is higher or lower than the same 30 minute bar from prior days. IVC works for both RadarScreen® and Charts. You can set a threshold to be shown when the current volume is exceeding the normal average volume by a certain percentage.