Price and Volume Trend Indicator - PVT
Price and Volume Trend Indicator or PVT is an upgraded version of the Balance Volume indicator (On Balance Volume, OBV).
The main difference PVT indicator is that it does not add the full value of the volume for the day like OBV, but only a part that is calculated from the value of the price change relative to the previous day's closing price.
Commentary from ForTrader.org: PVT - a very good volume indicator, which will be a great helper if you use OBV in your strategy.