Bullish Flag
Bullish Continuation IntermediateA sharp rally (the flagpole) followed by a tight, downward-sloping consolidation (the flag) that resolves with a breakout higher.
Quick Summary
- •What it looks like: A steep, nearly vertical rally (flagpole) followed by a small, rectangular or parallelogram-shaped pullback (flag) that slopes slightly downward.
- •What it means: Strong momentum caused a surge, and now the stock is taking a brief pause as early buyers take profits. The uptrend is healthy and will likely resume.
- •When it confirms: Price breaks above the upper trendline of the flag on increasing volume, signaling the resumption of the uptrend.
What It Looks Like
Tight Consolidation
The flag should be compact and tight, ideally lasting 1-4 weeks. Flags that drag on for longer lose their power and reliability.
Pole Height = Target
Measure the flagpole from base to top. Add this distance to the breakout point to project your price target after the pattern completes.
The Story Behind the Pattern
1
Strong Rally Creates the Pole
A catalyst (earnings beat, sector momentum, breaking news) triggers heavy buying. Price shoots up almost vertically in a matter of days or weeks. This is the flagpole — momentum is extreme.
2
Profit-Taking Causes Pullback
Early buyers lock in gains, causing a modest pullback. This is healthy — the stock needs to digest the gains. The pullback is orderly, not panicked, and typically retraces 30-50% of the pole's height.
3
Tight Channel Forms the Flag
Price oscillates in a narrow, slightly downward-sloping channel. Volume dries up during this phase — buyers and sellers are in equilibrium. The pattern looks like a flag on a pole, hence the name.
4
Breakout Continues the Trend
When price breaks above the upper trendline of the flag, volume surges as the next wave of buyers jumps in. The uptrend resumes with fresh momentum, often matching or exceeding the pole's height.
How to Trade Bullish Flag
1
Measure Pole Height for Target
Draw a vertical line from the base of the pole to the top. This is your measurement. Add this distance to the breakout level to get your price target. The move often mirrors the pole.
2
Flag Should Retrace 30-50% of Pole
Ideal flags retrace roughly one-third to one-half of the pole's height. Deeper retracements (over 50%) suggest weakening momentum. Shallower retracements (under 30%) are also acceptable but less common.
3
Breakout on Volume Confirms
The breakout above the upper flag trendline must come with a noticeable volume spike. Low-volume breakouts are suspect and often fail. Volume is your confirmation signal.
4
Tight Flags are More Reliable
The tighter and more compact the flag, the more explosive the breakout. Loose, sloppy flags with wide swings are less reliable. Look for clean, parallel channels with low volatility.
Technical Details
| Pattern Name | Bullish Flag (Bull Flag) |
| Pattern Type | Bullish Continuation |
| Formation | Steep rally (pole) + tight downward-sloping consolidation (flag) |
| Confirmation | Breakout above upper flag trendline with volume surge |
| Price Target | Pole height added to breakout level |
| Timeframe | Pole: days to weeks; Flag: 1-4 weeks (compact is better) |
| Reliability | High (70-80%) when tight, volume-confirmed, and in strong trend |
| Volume | Heavy during pole, light during flag, surges on breakout |
Remember: Flags that last longer than 4 weeks start to lose their momentum characteristics and become less reliable. Also, if the flag retraces more than 50% of the pole, it's no longer a high-probability setup. Wait for the breakout — don't buy inside the flag hoping it will work out.
Recent Detections
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Results
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No detections found
No Bullish Flag patterns detected in the last 7 days.