Volume MA & Relative Volume (RVOL) Explained

Every volume bar is meaningless alone — 2 million shares is huge for one stock and dead quiet for another. Two small indicators put volume in context: the Volume MA (average volume over N bars) and Relative Volume (RVOL) — current volume divided by that average. Together they answer the only volume question that matters: is this activity unusual?

How They Work

With the default period of 20:

• Volume MA draws the baseline: what "normal" volume looks like right now.
• Relative Volume = current volume / Volume MA. RVOL 1.0 is average, 2.0 is twice normal, 0.5 is half.

Reading it:

• RVOL > 1.5–2: something is happening — news, breakouts, institutional interest.
• RVOL < 0.7: nobody's home; moves are noise drifting on thin participation.

How to Trade Them

1. Breakout validation. Require RVOL above 1.5 on the breakout bar. Real breakouts attract volume; fake ones don't. This single filter removes a large share of false Donchian and zone-break losers.

2. Dead-market gate. Skip all entries while RVOL sits below ~0.7 — low-participation signals fail disproportionately.

3. Climax detection. RVOL above 4–5 after a long trend often marks exhaustion, not continuation — a cue to take profit rather than add.

Building It in Setup.Cash

Add Volume MA and Relative Volume in the strategy builder (volume markets: crypto, stocks) and use RVOL thresholds as AND-conditions on your entries. For deeper volume work, see OBV, MFI, and CMF, or the extended library's Klinger, Time Segmented Volume, and Percentage Volume Oscillator.

Tuning

• Period 20: standard baseline.
• Longer (50): steadier definition of "normal" — better for regime gating.
• Intraday equities often compare to the same time of day — approximate this on lower timeframes with shorter periods.

Volume context costs one condition and saves many bad trades. Backtest your system with an RVOL gate at 1.0, 1.5, and 2.0 and watch how the profit factor moves.