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How traders think about gaps as supply and demand imbalances and why they often matter later.

In this guide

What a gap represents · Common gap behaviors · Why context matters · How traders use gaps · Checklist

• A gap occurs when price jumps from one area to another without trading through the prices in between.
• This usually reflects a rapid repricing event, such as earnings, news or a strong sentiment shift.
• Because the skipped range was never fully traded, it often becomes an important reaction zone later.

• Gap hold: price keeps the gap area and continues in the same direction.
• Gap fill: price returns into the gap and rebalances part of the move.
• Failed gap: price loses the gap quickly, which can warn that the original move lacked staying power.

• An earnings gap carries different information than a routine opening imbalance.
• A gap aligned with strong structure and momentum may be more reliable than one that appears inside a weak chart.
• Nearby support and resistance still matter even when a gap is present.

• As support and resistance zones.
• As reference points for continuation or failure.
• As areas where sentiment and positioning may have shifted rapidly.

• Was the gap driven by earnings, news or general market movement?
• Did price accept above or below the gap zone?
• Is the gap holding, filling or failing?
• What level invalidates the gap thesis?

Apply this in WOI

Open the scanner, pick one symbol, and practice: mark zones, decide trend regime, and write one invalidation level. The goal is a repeatable process, not perfect predictions.

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Related: Technical Analysis Basics — A Practical Framework · Market Regimes — Trend vs Range · Support and Resistance — Zones, Not Lines · Trendlines and Market Structure