Positive Volume Index
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Description
The Positive Volume Index is calculated by adding to the index the percentage change in value (of a market index or security price) only when the volume has increased from the previous day. A rise in the indicator could be interpreted as bullish. It can be useful to overlay a long period (for example, 52-week) moving average of this indicator. A Positive Volume index above its moving average would be a bullish signal. The bearish signal would be in force while the Positive Volume Index was below its moving average. However, this indicator more reliably indicates bull than bear trends.
Since this indicator was developed for use with market indices, you would be well advised to experiment extensively with historical data before applying it to individual securities as part of a trading system.
Reference:
Colby and Meyers (1988). The Encyclopedia of Technical Market Indicators. Dow Jones-Irwin.
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