The difference between the OBV and the PVT is that where the OBV adds all volumes when price achieves higher daily closes and subtracts them when price registers a lower daily close, the PVT adds or subtracts only a portion of the from the cumulative total in relation to a percentage change in price.
The general market consensus is that this difference enables the PVT to more accurately represent volumes in and out of a stock or commodity.
The PVT has been designed so that it is capable of forecasting directional changes in price. For instance, if the price of a stock is rising and the PVT begins to fall, then this is indicative that a price reversal could occur very soon.
The general consensus is that the PVT is more accurate at detecting new trading opportunities than the OBV because of the differences in their construction. The OBV is designed so that it adds the same amount of whether the price closes upwards by just a small fraction or by multiples of its day opening value. On the other hand, the PVT adds proportional to the amount the price closed higher.
Plain old PVT can be used to confirm trends, as well as spot possible trading signals due to divergences.
A benefit of the oscillator version is that it can produce LONG or SHORT signals on zero line cross.
Or controversy, disallow LONG trades in territory and disallow SHORT trades in territory.
4 different Moving Averages are available: