Level 2: Reading the MarketInteractive
Gap Analysis
15 min readUpdated Mar 2026
Quick Check
A breakaway gap occurs:
Common gaps tend to:
A breakaway gap occurs:
Common gaps tend to:
A gap occurs when a stock's open differs from the prior close by enough to leave an empty space on the chart. For swing traders who hold overnight, gaps are both an opportunity and a risk.
Classification Challenge
You often cannot distinguish runaway from exhaustion gaps in real time. If the trend is mature (4+ weeks of consecutive movement), treat any gap as potentially exhaustive and tighten your stop-loss.
Most gaps eventually fill (price returns to the pre-gap level), but timing varies:
The Trade-Off
Overnight risk is the price you pay for not watching screens all day. Manage it through position sizing and avoiding known high-risk events.
Key Takeaways
Try This
Find a recent gap on any watchlist stock. Classify it: common, breakaway, runaway, or exhaustion? What was the volume? Has it filled? If not, do you expect it will?
Log gap trades in Swingfolio and track which gap types produce the best risk-reward for your strategy.
Start Tracking FreeDisclaimer
This educational content is for informational purposes only and does not constitute financial advice. Past performance is not indicative of future results. Trading involves risk of loss. You should consult a qualified financial advisor before making investment decisions. Swingfolio is a trade journaling tool, not a financial advisory service.