Day Trading Scanner

5% Gap Scanner

Find stocks gapping 5%+ from the previous close. Gap scanner identifies catalyst-driven moves with volume confirmation and gap-fill analysis across 5,000+ stocks.

5,000+
Stocks Scanned
Daily
Updated
A+ to B
Grading
Free tier
Price
J
M
K
S
R
Joined by 500+ traders this month

How the 5% Gap Scanner scanner works

A 5%+ overnight gap is rarely random — it almost always means a catalyst. Earnings beats and misses, FDA decisions, M&A announcements, analyst upgrades and downgrades, sector rotations, and breaking news all show up first as gaps. This scanner sweeps 5,000+ stocks for names that opened more than 5% above or below the prior close, then enriches each result with two things day traders actually need: gap-hold status (did the gap fill, or did it stick?) and volume context (RVOL plus absolute share volume). A gap that holds on heavy volume is a continuation setup. A gap that fills back in is a fade setup. Either way, you want to be looking at it.

What we analyze

Open vs prior close (5% absolute gap minimum)
Direction (Gap Up vs Gap Down)
Gap-hold status — whether the gap was filled intraday
Gap-fill percentage (how much of the gap was retraced)
RVOL vs 50-day average volume
Absolute share volume (500K minimum, 5M+ for top grades)
$1 minimum price

How our grading system works

For 5% gap setups, an A+ grade means a gap of 20%+ that held completely (never filled), with RVOL above 5x and absolute volume above 5M shares. A grades require 10%+ gaps with strong volume. B+ requires the gap to hold with 2x+ RVOL. B meets the 5% gap minimum. This is not a prediction of future price movement — it is a way to prioritize which charts deserve your attention first.

A+
Textbook setup with strong confluence
A
High-quality setup worth watching
B+
Decent setup with some reservations
B
Pattern detected but lower conviction

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AskLivermore scans 5,000+ NASDAQ and NYSE stocks daily · Not financial advice · Past performance does not guarantee future results