What is this indicator?
Only examines days when trading volume has fallen compared to the previous day, on the assumption that smart money is more active on those days. It's designed mainly for long-term analysis, not short-term trading.
How to read the chart
A rise happening alongside price movement confirms that move's validity; a divergence between volume and price is often a sign of a weakening trend.
Practical tip
Always check volume alongside price movement; volume on its own, without regard to the price trend, isn't a reliable signal.