Volume (Vol) is the number of units traded (shares, contracts, tokens) over a given period. Volume moving averages, such as the MA(5) and MA(10), are calculated from daily volumes and then smoothed over 5 or 10 days.

The goal is to observe the evolution of market activity and to identify changes in momentum. For example, when the volume MA(5) crosses upwards over the MA(10), this may indicate an increase in investor interest or an intensification of trading. Conversely, if the MA(5) falls back below the MA(10), this may indicate a slowdown.

These signals must be put into context. One-off high volume may be related to fundamental announcements, special operations (e.g. mergers and acquisitions), or macroeconomic events. Crossing volume analysis with other indicators (RSI, MACD, etc.) allows you to better understand the strength of a trend and avoid relying solely on an isolated volume peak.