The Bid Ask Volume Cross custom study is available on the Add Studies window, on the Custom Studies window (Formula Builder), and in the Toolbox.
The BAVolCross study displays two lines: the rolling 5-bar sum of traded volume at the ask price (buying) and rolling 5-bar sum of traded volume into the bid (selling).
Formula of curves:
AskVolume curve: Buy := Sum( AskTradeVol(@),RunningSum)
BidVolume curve: Abs(Sum( BidTradeVol(@),RunningSum))
Setup parameters:
•Display
•OB/OS
•Running Sum: The used for the calculations of sum.