An ascending triangle forms when a stock keeps meeting sellers at the same price, but each pullback stops at a higher low. Draw a flat line across the highs and a rising line under the lows, and the two lines squeeze into a triangle.
On this page5 sections
What it tells you
The flat top shows a fixed supply of sellers at one price. The rising lows show buyers stepping in earlier and earlier. When the sellers at the top run out, there is often little left to stop the stock.
How to spot one
- At least two touches of the same resistance level.
- At least two higher lows underneath.
- Contracting range: the swings get smaller as the triangle matures.
- Volume often dries up inside the pattern, then expands on the breakout.
The trigger and the stop
The trigger is a close above the flat resistance. Many traders wait for a close, rather than a quick poke above the line, to avoid false breakouts. The stop goes below the most recent higher low. If that low breaks, the rising-demand story is wrong.
A worked example (hypothetical chart)
A hypothetical stock meets sellers at $80 three times over five weeks. Its pullbacks stop at $72, then $75, then $77. The plan: buy on a close above $80.20, stop at $76.60, risk $3.60 a share. Before entry, the trader checks the market trend and the next earnings date.
Points to watch
- A triangle that drifts into its apex without breaking often loses force.
- A breakout that falls straight back under the line is a warning, not a buy-the-dip signal.
- Rising lows must be clear on the chart, not drawn to fit.
The pattern is a reason to plan, not to predict. Mark the line, write the trigger, and let the stock come to you.
Education only, not financial advice. No pattern works every time.
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