Find ascending triangle patterns forming near resistance across 5,000+ stocks. Flat resistance + rising support, graded A+ to B.
Run this scan →The ascending triangle is a bullish continuation pattern formed by the intersection of a flat resistance line and a rising support trendline. As a stock repeatedly tests the same overhead resistance level while making higher lows on each pullback, it creates a visual triangle shape that compresses toward a breakout. This pattern is one of the most reliable in technical analysis because it directly maps the supply-and-demand dynamics in real time.
The flat resistance line represents a specific price level where supply consistently enters the market — sellers have a standing willingness to sell at that price. The rising support line tells the opposite story: buyers are becoming increasingly aggressive, willing to buy at higher and higher prices with each pullback. This divergence between static supply and increasing demand inevitably resolves in favor of buyers.
Volume behavior through the pattern adds critical confirmation. Volume should contract as the triangle narrows, reflecting the diminishing supply available for sale at the resistance level. Each test of resistance absorbs more of the standing sell orders. When the final breakout occurs — ideally on a significant increase in volume — it signals that the supply at resistance has been completely absorbed and uncontested demand can drive the stock higher. The measured move target is calculated by adding the height of the triangle at its widest point to the breakout level.
First formally classified by Edwards and Magee in Technical Analysis of Stock Trends (1948), though the pattern was observed by chart readers dating back to the early 1900s. Thomas Bulkowski's Encyclopedia of Chart Patterns (2000) provided extensive statistical analysis, finding ascending triangles to have a 75% upward breakout rate in uptrends. The pattern is now one of the most widely recognized continuation setups among institutional and retail traders alike.
Our scanner evaluates the following criteria when detecting Ascending Triangle setups across 5,000+ stocks daily.
For ascending triangles, an A+ grade means 3+ resistance touches within 2%, 3+ rising support touches, strong volume contraction, price within 2% of resistance, and an existing uptrend above both 50 and 200 SMAs. This is not a prediction of future price movement — it is a way to prioritize which charts deserve your attention first.
Buy on a breakout above the flat resistance level with volume at least 50% above the 50-day average. The breakout should close above resistance, not just spike through intraday.
Place stop below the most recent higher low on the rising support line, or below the rising trendline itself. A break below the trendline invalidates the pattern.
Measure the height of the triangle at its widest point (from flat resistance to the lowest support touch) and project it upward from the resistance breakout level.
This is educational content only. Not financial advice. Always do your own research and manage risk appropriately.