Relative Volume (RVOL)

Relative Volume answers one question: is right now busier than usual? It divides the current bar's volume by the average volume of the prior N bars. RVOL of 1.0 means a perfectly average amount of trading; 2.0 means twice the usual; below 1.0 means quieter than normal. The institutional relevance is participation. Real, conviction-driven moves — the kind larger players are involved in — tend to come with elevated volume. A breakout on RVOL 0.6 is low-conviction and prone to failure; the same breakout on RVOL 2.0 has genuine participation behind it. RVOL ≥ 1.3 is a common threshold for flagging "something unusual is happening here, pay attention." RVOL is a filter, not a direction tool. It tells you *whether* to take a setup seriously, not *which way* price will go.

Take the average volume of the previous N bars (default 20), excluding the current bar. Divide the current bar's volume by that average. If the current bar matches the recent average, RVOL is 1.0; double the average gives 2.0; half gives 0.5. Because it is a ratio to a recent baseline, RVOL self-normalizes across assets — an RVOL of 2 means the same thing (twice normal participation) on BTC as on a small-cap, even though their absolute volumes differ by orders of magnitude.

**As a setup filter.** Require RVOL above a threshold (e.g. 1.3) before acting on a breakout, reversal, or news reaction, to screen out low-conviction noise. **To rank opportunities.** Across a watchlist, higher RVOL highlights where unusual participation — and therefore opportunity and risk — is concentrated right now. **To temper conviction.** A signal firing on below-average volume deserves smaller size or a pass.

**Honest limitations — read before relying on it.** RVOL is an analysis/filter tool, not a profit guarantee. High participation raises the *probability* that a move is real; it does not make it profitable, and high-volume moves reverse all the time. **It says nothing about direction.** RVOL is direction-agnostic — a high reading accompanies both strong rallies and violent dumps. Pair it with a directional method. **Threshold is contextual.** 1.3 is a starting point, not a law; volatile assets and event-driven sessions need different baselines. Backtest the threshold for your market. **Volume-quality dependent.** Distorted by wash trading and thin books. Always combine with risk management — participation is a clue, not a certainty.