Price Volume Trend
can be used to show trend strength and warn of reversals. A rising PVT could indicate a reversal for a weak stock or confirm an upward trend for a rising stock. Likewise a falling PVT could indicate a reversal for a strong stock or confirm a downward trend for a falling stock.
For each day, PVT = PVT-1 + (((Close - Close-1) / Close-1) * Volume).