Real-Time Market Data

Gap Up Stocks Today — Live Gap Scanner for Premarket & Intraday

Real-time gap scanner tracking stocks gapping up from previous close. Monitor premarket and intraday gap-ups across 8,000+ NYSE & NASDAQ stocks with live streaming data.

About Gap Up Stocks Today — Live Gap Scanner for Premarket & Intraday

BitByte24's gap scanner tracks stocks gapping up from their previous close in real time — an essential tool for gap traders and momentum traders. Gap-ups are one of the most traded patterns in the stock market. When a stock opens significantly above its previous close — driven by earnings beats, analyst upgrades, FDA approvals, or sector catalysts — it often continues higher as momentum builds.

Catching these moves early requires real-time gap data, not delayed quotes. The scanner works during premarket (4:00 AM–9:30 AM ET) to catch overnight gaps before the open, and continues through the regular session to track intraday gap-ups. Set alerts to get notified when a stock gaps above your target percentage.

For gap traders who need real-time data to execute their strategy, BitByte24's live gap scanner delivers.

Why Traders Choose BitByte24

Real-Time Data

Live streaming prices updated every second — no 15-minute delays.

Advanced Screening

Filter by price, volume, market cap, momentum, and 50+ criteria.

Smart Alerts

Get notified when stocks hit your target price or volume thresholds.

Reliable & Accurate

Built for dependable market insights across NYSE & NASDAQ.

Full Market Coverage

8,000+ stocks across all sectors, industries, and market caps.

Professional-Grade Tools

Institutional-quality screening, scanning, and analysis for active traders.

Frequently Asked Questions

What is a gap up in stocks?
A gap up occurs when a stock opens at a price significantly higher than its previous closing price. Gaps are typically caused by after-hours news, earnings reports, analyst upgrades, or sector catalysts that shift sentiment overnight.
How does BitByte24's gap scanner work?
BitByte24 compares each stock's current price against its previous close in real time, calculating the gap percentage. Stocks with the largest gap-ups appear at the top, updating every second with live streaming data.
Does the gap scanner work during premarket?
Yes. BitByte24's gap scanner starts at 4:00 AM ET during premarket, tracking overnight gaps as they develop. It continues through the regular session and after-hours.
Can I filter gap-up stocks?
Yes. Filter by gap percentage, price range, volume, market cap, and sector to find the specific gap setups that match your trading strategy.
What gap trading strategies can I use with this scanner?
Common gap strategies include gap-and-go (buying continuation after the gap), gap fade (shorting overextended gaps), and gap fill (trading the retracement back to the previous close). BitByte24's real-time data supports all three approaches.

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