Ascending Triangle
Bullish (bilateral) IntermediateFlat resistance with rising support — each low is higher than the last, showing buyers becoming more aggressive until resistance breaks.
Quick Summary
- •What it looks like: Horizontal resistance at the top (flat line) and rising support at the bottom (upward-sloping line), forming a triangle that tightens to the right.
- •What it means: Buyers are getting more aggressive with each bounce, creating higher lows. Sellers defend a specific price level (resistance), but their defense is weakening.
- •When it confirms: Price breaks above the flat resistance line with strong volume. While technically bilateral, statistics show 60-70% break upward.
What It Looks Like
Higher Lows Signal Strength
Each bounce creates a higher low than the previous one, showing buyers are willing to pay increasingly higher prices. This is accumulation in action.
Resistance Becomes Support
After the upward breakout, the old resistance level often becomes new support. This is a good spot to add to positions if price pulls back.
The Story Behind the Pattern
1
Price Hits Resistance
The stock rallies and encounters a price level where sellers step in. This creates a horizontal resistance line as price repeatedly tests this level but fails to break through initially.
2
Higher Lows Form
After each rejection at resistance, price pulls back but doesn't fall as far as before. Each low is higher than the last, creating an upward-sloping support line. Buyers are becoming more aggressive.
3
Compression Increases
As the pattern develops, the space between resistance and support narrows. The triangle tightens, creating increasing tension. This compression builds energy for an eventual breakout move.
4
Breakout Above Resistance
Eventually, buyers overpower sellers and push through resistance on strong volume. The rising lows showed accumulation was happening — the breakout is the payoff. Most ascending triangles break upward (60-70%).
How to Trade Ascending Triangle
1
Buy Above Resistance
Enter when price closes above the horizontal resistance line. Some traders buy a bit earlier (aggressive) but waiting for confirmation reduces false breakouts. Set a stop below the last higher low.
2
Target = Height at Widest Point
Measure the vertical distance from the flat resistance to the first low (widest part of the triangle). Add this height to the breakout level to get your price target.
3
Volume Should Spike on Breakout
Volume tends to contract during the triangle formation, then expand dramatically on the breakout. This surge confirms institutional participation. Low-volume breakouts are suspect.
4
More Breakouts Go Up Than Down
While technically bilateral, studies show 60-70% of ascending triangles break upward. The rising lows indicate buying pressure is building, making an upward breakout more probable than a breakdown.
Technical Details
| Pattern Name | Ascending Triangle |
| Pattern Type | Bilateral (but typically bullish, 60-70% upward breakout rate) |
| Formation | Flat horizontal resistance + rising support (higher lows) |
| Confirmation | Breakout above resistance (or below support) with volume surge |
| Price Target | Triangle height (widest point) added to breakout level |
| Timeframe | Typically 1-3 months, minimum 3-4 weeks |
| Reliability | High (70-75%) for upward breakouts when volume confirms |
| Volume | Decreases during formation, expands significantly on breakout |
Remember: While ascending triangles are statistically bullish, 30-40% DO break downward. Always wait for breakout confirmation and don't assume direction. False breakouts can occur near the apex — the best breakouts happen between 50-75% through the pattern's duration.
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