Skip to content

Subscriptions are live.

Plans
Logo
Start Free
Free RVOL Scanner

Real-time RVOL scanner for day traders

The best free relative volume (RVOL) scanner for day trading. Detect unusual volume spikes across all U.S. stocks in real time, pre-market, regular hours and after hours. Filter by RVOL level and get live alerts the moment a stock lights up.

1527 on unusual volume right now
Open live RVOL scanner →How to use RVOL

Live RVOL scanner

LiveConnecting…
5 active
SymbolLast alert
$BKYIBIO-key International, Inc. Common Stock··6003x··
$SANGSangoma Technologies Corporation Common Shares··3172x··
$ORCLOracle Corp··1315x··
$SLNDSouthland Holdings, Inc.··1064x··
$BEBloom Energy Corporation··473x··
$YMTYimutian Inc. American Depositary Shares··447x··
$QQQInvesco QQQ Trust, Series 1··444x··
$MLMMartin Marietta Materials··408x··
$OUSTOuster, Inc.··321x··
$CCLCarnival Corporation Ltd.··261x··
$TEADTeads Holding Co. Common Stock··250x··
$VVOSVivos Therapeutics, Inc. Common Stock··233x··
$CLDXCelldex Therapeutics, Inc··218x··
$MODModine Manufacturing Co··214x··
$MUUDirexion Shares ETF Trust Direxion Daily MU Bull 2X ETF··204x··
$IOTSamsara Inc.··198x··
$DASHDoorDash, Inc. Class A Common Stock··190x··
$AIRAAR Corp.··187x··
$MSGYMasonglory Limited Ordinary Shares··177x··
$VSTVistra Corp.··174x··
$MDTMedtronic plc··167x··
$PWPPerella Weinberg Partners Class A Common Stock··158x··
$CMSCMS Energy Corporation··157x··
$IWNiShares Russell 2000 Value ETF··156x··
$HOODRobinhood Markets, Inc. Class A Common Stock··153x··
$ARRYArray Technologies, Inc. Common Stock··148x··
$COINCoinbase Global, Inc. Class A Common Stock··144x··
$MSTRStrategy Inc Common Stock Class A··136x··
$XLFState Street Financial Select Sector SPDR ETF··136x··
$GNRCGENERAC HOLDINGS INC··132x··
$FICOFair Isaac Corporation··131x··
$NAUTNautilus Biotechnolgy, Inc. Common Stock··127x··
$EXLSExlService Holdings, Inc.··127x··
$MITQMoving iMage Technologies, Inc.··122x··
$CAPSCapstone Holding Corp. Common Stock··121x··
$DUOFangdd Network Group Ltd. Class A Ordinary Shares··120x··
$TERTeradyne, Inc. Common Stock··118x··
$ILLRTriller Group Inc. Common Stock··117x··
$ALABAstera Labs, Inc. Common Stock··115x··
$NIVFNewGenIvf Group Limited Class A ordinary shares··114x··

Prices update every 15 seconds; the list refreshes as new stocks spike. Tap a ticker for its chart and alerts.

Get a free alert the moment a stock spikes on unusual volume. Real-time, no card, 5 premium days on us.

Sign up free
No card · 5 premium days

What is relative volume (RVOL)?

Relative volume compares a stock's current trading volume to its historical average volume for the same time of day. An RVOL of 3.0x means the stock is trading at three times its normal pace, a signal worth watching.

Unlike raw volume, RVOL adjusts for the natural rhythm of the trading day: pre-market is quieter than the open, and lunch is slower than the close. This minute-by-minute baseline makes RVOL a much more accurate indicator of genuine unusual activity.

The scale

RVOL levels explained

Lvl 12.0x-2.5x

Elevated volume. Watch but not yet actionable for most strategies.

Lvl 22.5x-4.0x

Significant volume. Often precedes a momentum move or breakout.

Lvl 34.0x-6.0x

Strong volume spike. High probability of a tradeable intraday move.

Lvl 46.0x-10x

Exceptional volume. Expect wide ranges and fast price action.

Lvl 510x+

Extreme volume surge. Possible catalyst, news, halt, or squeeze. Maximum urgency.

Under the hood

Scanner features

Minute-by-minute baseline

RVOL calculated against the historical average for each specific minute, not a crude daily average.

Real-time WebSocket delivery

New RVOL alerts pushed to the dashboard within seconds. No polling, no refresh.

Level 1 to 5 classification

Alerts classified from Level 1 (2x normal) to Level 5 (10x+) so you can filter by urgency.

200 EMA context

Every RVOL alert shows whether the stock is above or below its 200-day EMA, critical for bias.

Dollar volume badge

See 1-minute dollar volume so you can instantly judge liquidity on every alert.

All sessions covered

Pre-market (4 AM), regular hours (9:30 AM), and after-hours (up to 8 PM ET).

Questions

Frequently asked

What is RVOL (relative volume)?
RVOL is the ratio of a stock's current trading volume to its historical average volume for the same time of day. An RVOL of 3.0x means the stock is trading at three times its normal volume for that minute. High RVOL signals unusual interest, often driven by news, catalysts, or technical breakouts.
What makes a good RVOL scanner for day trading?
The best RVOL scanner for day trading updates in real time (not delayed), classifies volume by session (pre-market vs. regular hours), provides context like price, EMA levels, and dollar volume, and filters out illiquid tickers. TheDesperateTrader does all of this, and new accounts start with 5 free premium days before the affordable $24.99/mo early-access subscription.
How is RVOL calculated on TheDesperateTrader?
RVOL is calculated per minute using a rolling historical baseline, the average volume for that specific minute of the day across recent trading sessions. This minute-by-minute baseline gives a much more accurate signal than comparing to the daily average, because pre-market volume is naturally lower than midday volume.
How much does TheDesperateTrader RVOL scanner cost?
New accounts start with 5 free premium days, full access to the live dashboard, real-time WebSocket delivery, and alerts, with no credit card required at signup. After that, premium runs on an affordable subscription at an early-access price of $24.99/month, with day, week, monthly, and longer plans available. Donations are also an alternate path to premium time.
Does the RVOL scanner work pre-market?
Yes. Scanning runs from 4:00 AM ET through 8:00 PM ET, covering full pre-market and after-hours sessions. Pre-market RVOL is especially useful for identifying gappers before the 9:30 AM open.
Can I use this RVOL scanner on mobile?
Yes. TheDesperateTrader is fully mobile-responsive and works on any smartphone or tablet browser. No app download required.

Start scanning RVOL for free

No credit card required. The RVOL scanner is part of the full alerts dashboard, free to access.

Open RVOL scannerHalt Scanner →

Get the best catches in your inbox

Free daily email of the top plays and unusual-volume alerts our scanner flags. No account needed.

No spam. Unsubscribe anytime. Not investment advice.