# Relative Volume > Relative volume compares current volume with its normal level. Learn the RVOL formula, time of day adjustments, scanning for stocks in play and how to use it. Source: https://learn.tradelabsai.com/volume/relative-volume/ Track: Volume Analysis · Level: Beginner · Updated: 2026-10-03 Publisher: TradeLabs AI (https://tradelabsai.com). Education, not financial advice. Cite as: TradeLabs Learn, "Relative Volume", https://learn.tradelabsai.com/volume/relative-volume/ Relative volume, often shortened to RVOL, compares how much an asset is trading now with how much it normally trades. A reading of 1.0 means normal activity; 3.0 means three times normal. Raw volume numbers are hard to interpret on their own, because "2 million shares" is huge for one stock and tiny for another. Relative volume puts every asset on the same scale, showing at a glance where unusual activity is happening. ## The formula The simplest version: ``` RVOL = Current volume ÷ Average volume over n days ``` A common average is the last 10 or 20 days. **Example: Daily relative volume** A stock averages 1.5 million shares a day over the last 20 days. Today it traded 4.2 million shares. RVOL = 4.2 ÷ 1.5 = 2.8. The stock traded nearly three times its normal volume, a sign that something unusual is happening. ## Adjusting for time of day During the trading session, comparing partial day volume with a full day average is misleading. At 10:00 a.m., a stock will always look like it has low volume compared with a whole day. The better approach compares volume so far today with the average volume up to the same time on previous days. ``` Intraday RVOL = Volume so far today ÷ Average volume by this time over n days ``` **Example: Time adjusted RVOL** By 10:30 a.m., a stock has traded 900,000 shares. On average over the last 20 days, it had traded 300,000 shares by 10:30. Time adjusted RVOL = 3.0. Compared with its full day average of 1.5 million, it would have looked like only 0.6, which is badly misleading. Many trading platforms calculate time adjusted relative volume automatically. ## What RVOL tells you | RVOL | Typical meaning | |---|---| | Below 0.7 | Quiet; less interest than usual | | Around 1.0 | Normal activity | | 1.5 to 2.0 | Elevated interest | | Above 2.0 to 3.0 | Unusual activity; often news, earnings or a breakout | | Above 5.0 | Extreme; major news or event | ## How traders use relative volume ### Finding stocks in play Day traders scan for stocks with high RVOL at the open, often combined with a gap and a news catalyst. High relative volume means more participants, tighter spreads and larger moves, all useful for short term trading. See [Day Trading](https://learn.tradelabsai.com/strategies/day-trading/) and [News Trading](https://learn.tradelabsai.com/strategies/news-trading/). ### Confirming breakouts A breakout with RVOL above 1.5 to 2.0 has much better odds of follow through than one on below average volume. See [Breakouts](https://learn.tradelabsai.com/price-action/breakouts/). ### Spotting quiet pullbacks Low relative volume during a pullback in an uptrend suggests weak selling pressure. See [Volume Analysis Basics](https://learn.tradelabsai.com/volume/volume-analysis-basics/). ### Avoiding dead markets Stocks with very low relative volume often move little and have wider spreads, which can be poor for active trading. ## Limitations - **Events distort averages:** an earnings day or index rebalance inflates the average for weeks afterwards, making later days look quiet. - **Spikes are not direction:** high RVOL can accompany sharp falls as well as rises. - **Small caps:** very high RVOL in thinly traded stocks can come from a handful of trades or promotional activity. ## Relative volume in crypto and futures The same idea works in any market with reliable volume. In futures, compare volume with the same session time on previous days, remembering that volume shifts between contract months around rolls. In crypto, which trades all day, compare each hour's volume with the average for that hour, because activity rises when US and European traders are both awake. ## Common mistakes - **Comparing partial day volume with full day averages.** - **Treating high RVOL as bullish** without looking at price direction. - **Ignoring why volume is high;** check the news. ## Frequently asked questions ### What is relative volume? A comparison of current volume with an asset's normal volume, usually expressed as a ratio, where 1.0 means normal. ### What is a good relative volume for day trading? Many day traders look for RVOL of 2 or higher, often with a news catalyst, to find stocks with strong participation. ### How do you calculate relative volume during the day? Divide volume traded so far today by the average volume traded by the same time of day over recent sessions. Next, learn what it means when price and volume disagree in [Volume Divergence](https://learn.tradelabsai.com/volume/volume-divergence/). ## Continue learning - Next lesson: [Volume Divergence](https://learn.tradelabsai.com/volume/volume-divergence/) - Previous lesson: [Volume Analysis Basics](https://learn.tradelabsai.com/volume/volume-analysis-basics/) - Related: [Volume Analysis Basics](https://learn.tradelabsai.com/volume/volume-analysis-basics/): Volume analysis uses trading activity to confirm or question price moves. Learn the core principles, volume spikes, climaxes, dry ups and how to apply them. - Related: [Volume](https://learn.tradelabsai.com/markets/volume/): Volume is the number of shares or contracts traded in a period. Learn how to read volume bars, what high and low volume mean and how volume confirms price moves. - Related: [Day Trading](https://learn.tradelabsai.com/strategies/day-trading/): Day trading means opening and closing positions within the same session. Learn how it works, the costs, rules, risks and what a realistic day looks like. - Related: [Breakouts](https://learn.tradelabsai.com/price-action/breakouts/): A breakout is when price moves decisively beyond support, resistance or a pattern. Learn signs of a real breakout, entry methods, stops and how to avoid fakeouts. - Related: [News Trading](https://learn.tradelabsai.com/strategies/news-trading/): News trading reacts to headlines and economic releases as they hit the market. Learn the approaches, why surprises matter, the speed problem and how to manage risk.