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Relative Volume (RVOL)

Relative volume (RVOL) compares how much a stock is trading right now to its normal volume, flagging when unusual interest — and conviction — has shown up.

In one line: Relative volume (RVOL) compares how much a stock is trading right now to its normal volume, flagging when unusual interest — and conviction — has shown up.

What it is

Relative volume answers 'is today busy or quiet?' by comparing current volume to the stock's own average for the same time. It's expressed as a multiple: RVOL of 1.0 is a perfectly average day, 2.0 is twice the normal activity, 0.5 is half. Because raw volume varies wildly between names, RVOL normalizes it so you can compare unusual activity across any stock.

RVOL = current volume ÷ average volume for the same period. It measures how unusual today's participation is, not the raw share count.

How it works

High relative volume means many participants care right now — usually because of news, an earnings reaction, or a technical level breaking. Traders use it as a conviction filter:

  • Confirming breakouts: a move through resistance on high RVOL is credible; on low RVOL it's suspect (a likely false breakout).
  • Scanning for action: screening for high RVOL surfaces the names actually in play today.
  • Gauging follow-through: a gap on high RVOL has real fuel; on low RVOL it tends to fade.

Worked example

Example

By midday a large-cap has already traded three times the volume it normally does by that hour — an RVOL of 3.0 — as it pushes above a level it had struggled with for weeks. That surge in participation says the breakout has real money behind it, not a random poke. Contrast a second name nudging to new highs on an RVOL of 0.6 — below-average interest, thin conviction, and a higher chance the move fizzles. Same chart pattern, very different quality once you add relative volume.

Why it matters

Relative volume is the fastest way to separate moves that matter from background noise. A price move without participation is fragile; a move on high RVOL reflects broad agreement and tends to follow through. It's a core filter behind most quality breakout and momentum setups — and behind screening for which names are worth your attention on a given day.

Entry Point Trading weighs participation and conviction like this inside its daily signal, then grades each call in the open.

Keep learning

Related concepts

Volume Analysis
Using trading volume to confirm or doubt a price move.
Breakout Trading
Trading a move through a defined level on rising participation.
Gap Trading
Trading the jump when price opens away from the prior close.
Support and Resistance
Price levels where buyers and sellers repeatedly step in.
Market Breadth
Measuring how many stocks participate in a move, not just the index.
Stock Signal
A structured buy/sell/hold call — and what a good one must include.

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Common questions

FAQ

What is a good relative volume for a breakout?
Many traders look for relative volume of at least 1.5× to 2× the norm to trust a breakout, and the higher the better. High RVOL shows that many participants are backing the move, which makes follow-through more likely. A breakout on below-average relative volume deserves skepticism and a tighter stop.
How is relative volume different from regular volume?
Regular volume is the raw share count, which varies enormously between stocks and can't be compared directly. Relative volume divides current volume by the stock's own average, turning it into a multiple (like 2× normal). That normalization lets you spot unusual activity and compare it across any stock.

Learn the process by watching it live — free.

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