Volume–price trend

${\displaystyle {\text{VPT}}={\text{VPT}}_{\text{prev}}+{\text{volume}}\times {{\text{close}}_{\text{today}}-{\text{close}}_{\text{prev}} \over {\text{close}}_{\text{prev}}}}$

VPT total, i.e. the zero point, is arbitrary. Only the shape of the resulting indicator is used, not the actual level of the total.

VPT is similar to on-balance volume (OBV),[2] but where OBV takes volume just according to whether the close was higher or lower, VPT includes how much higher or lower it was.

VPT is interpreted in similar ways to OBV. Generally, the idea is that volume is higher on days with a price move in the dominant direction, for example in a strong uptrend more volume on up days than down days. So, when prices are going up, VPT should be going up too, and when prices make a new rally high, VPT should too. If VPT fails to go past its previous rally high then this is a negative divergence, suggesting a weak move.

Other price × volume indicators:

• Money Flow Index
• On-balance volume
• Accumulation/distribution index

• STEP3_Tutorial
• OUTPERFORMANCE WITH TECHNICAL ANALYSIS? — AN INTRADAY STUDY ON THE SWISS STOCK MARKET