The rolling average daily volume over the selected Volume Window period.
Yesterday's total traded volume for this ticker. Flips to Today's after 4pm ET.
Total volume divided by the rolling 20-day average volume.
1.0× means average volume. 2.0× is double a typical day.
Below 1.0× means quieter than normal.
The number of trading days used to compute the rolling average volume that today's volume is compared against.
20 days is the most common default — roughly a month of trading.
Shorter (10) reacts faster; longer (30, 50) is smoother and less prone to one-off spikes.
How close a historical multiplier must be to today's to count as a match.
Smaller = stricter match (fewer samples). Larger = looser.