Last fact-checked: October 6, 2026. Educational content only, not investment advice.
Flags Fly at Half-Mast
Flags and Pennants are common short-term continuation patterns. They typically form after a near-vertical "flagpole" price move, representing a pause for breath.
- Key Feature: The flagpole usually forms on heavy volume; volume typically contracts during the pattern and expands on the breakout.
- Measurement: They often mark the midpoint of a move. A common target estimate adds the flagpole length to the breakout point.
The Language of Gaps
Gaps are empty spaces on the chart.
- Common Gap: Within a trading range, little significance.
- Breakaway Gap: Jumps out of a pattern with volume; a strong trend signal.
- Runaway (Measuring) Gap: Occurs in the middle of a trend; used for targets.
- Exhaustion Gap: Appears at the end of a trend, often followed by a reversal.
Further Reading
- Triangle Patterns (Technical Analysis)
- Head and Shoulders Patterns (Technical Analysis)
- Timeframe and Chart Levels (Technical Analysis)
- Entry Points and Review Techniques (Technical Analysis)
References
FAQ
Q: How long does a flag pattern typically take to complete before breaking out?
A: Flags and pennants are short-term patterns lasting roughly 1 to 12 weeks, ideally 1 to 4 weeks; some analysts consider 8 weeks to be pushing the limit for reliability. A flag older than 12 weeks is usually reclassified as a rectangle, and a pennant as a symmetrical triangle. The key indicator is volume: it should shrink during formation and increase significantly on the breakout.
Q: How can I distinguish a breakaway gap from a common gap?
A: Breakaway gaps are typically accompanied by notably higher volume and occur when price moves away from a consolidation range or key support/resistance level. Common gaps appear within trading ranges with no significant volume change and are usually filled quickly. If price continues moving away from the gap area with strong volume, it is likely a breakaway gap.
Q: Does an exhaustion gap always lead to a reversal?
A: Not necessarily. An exhaustion gap is a warning signal at the end of a trend, but not a guaranteed reversal. You should confirm with other indicators such as declining volume, RSI divergence, or a subsequent gap in the opposite direction (island reversal). If the exhaustion gap is filled within a few days, the probability of reversal increases significantly.