Ascending Triangle Complete Guide

What is Ascending Triangle?

The Ascending Triangle is a classic bullish continuation pattern characterized by a horizontal upper resistance line and a rising lower trendline. It forms during an uptrend as the market encounters a specific price level where sellers are consistently active, creating a 'ceiling.' However, buyers become increasingly aggressive, purchasing the asset at higher price levels on each subsequent dip, which creates a series of higher lows. This tug-of-war results in a narrowing price range that takes the shape of a right-angled triangle. Technically, the pattern requires at least two touches of the upper resistance and two touches of the rising support to be valid. Volume typically trends downward as the pattern matures, reflecting a decrease in volatility and a consolidation of positions. A definitive breakout occurs when the price closes above the horizontal resistance line, ideally accompanied by a significant spike in volume to confirm the move. According to Thomas Bulkowski’s research in the 'Encyclopedia of Chart Patterns,' the ascending triangle is one of the most reliable patterns. In a bull market, an upward breakout has a failure rate of approximately 13%, with an average price rise of 35%. While traditionally viewed as a continuation pattern, it can also act as a powerful reversal signal at the bottom of a downtrend. Traders often calculate the price target by measuring the widest part of the triangle and projecting that distance upward from the breakout point. It is crucial to wait for a confirmed close above resistance to avoid 'bull traps,' where the price briefly pierces the level only to retreat back into the formation.

Identification Rules

1. Horizontal Resistance: At least two distinct peaks must touch a horizontal resistance line at nearly the same price level.
2. Rising Support: At least two distinct troughs must form a rising trendline, indicating higher lows.
3. Duration and Shape: The pattern should consist of at least 20 bars and take the shape of a right-angled triangle narrowing toward an apex.
4. Volume Profile: Volume should generally decline as the pattern develops, followed by a sharp increase on the breakout bar.

References

• Thomas N. Bulkowski (2005). Encyclopedia of Chart Patterns.
• Steve Nison (2001). Japanese Candlestick Charting Techniques.

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