Volume ratio
relative volume
Volume of the last completed trading day compared with the average of the 20 days before it. High volume shows that many market participants are behind a move.
In the screenerAbove 1.5× in the direction of the signal earns a bonus point; clearly below-average volume costs one. The last completed candle is used on purpose, because half a trading day would push the ratio down artificially.
For stock tradersVolume confirms moves in shares: a breakout on volume well above average is more reliable, a rise on falling volume is a warning sign.
See it in the screener
The live demo shows every term with example data, right next to the score and its reasons.