Volume OscillatorThe Volume Oscillator is produced by the subtracting a slower moving average
of the symbols volume from an faster moving average of symbols volume.
You can edit the period of the moving averages using edit button in the studies
The Volume Oscillator provides a smoothed way of tracking the change of volume over time. When the volume of a trend falls off, that may signal a potential reversal in the trend, similar you would expect high volume if a symbol has just broken through support or resistance.