Descending Triangle

The Descending Triangle is typically a bearish continuation pattern — the mirror image of the Ascending Triangle. It features a flat horizontal support line at the bottom and a declining resistance trendline at the top. Each successive high is lower, showing that sellers are increasingly aggressive, while buyers defend the same support level. The pattern usually resolves with a downside breakout once selling pressure finally overwhelms the support.

Pattern Anatomy

• Flat support line: A horizontal level where price has bounced at least 2 times (ideally 3+), forming a clearly visible floor
• Declining resistance: A downward-sloping trendline connecting at least 2 lower highs, showing sellers stepping in at progressively lower prices
• Converging lines: The flat support and declining resistance converge toward each other, compressing price into a narrowing range
• Price compression: As the triangle matures, each swing gets smaller and volatility contracts — a sign that a breakout is approaching
• Breakout timing: The breakout typically occurs about 2/3 to 3/4 of the way through the triangle (measured from the first high to the apex where the lines would meet)

How to Trade

• Entry: Enter short (or sell) on a confirmed breakdown below the flat support line. Wait for a candle to close below support, not just an intraday breach — false breakdowns are common
• Volume confirmation: Ideally the breakdown candle has above-average volume, confirming genuine selling pressure rather than a thin-market dip
• Measured move target: Measure the height of the triangle (from the first high to the flat support line) and project that distance downward from the breakout point — this gives a minimum price target
• Stop loss: Place a stop above the last lower high inside the triangle, or above the declining resistance trendline for a wider stop
• Retest: Price sometimes breaks below support, rallies back to "retest" the underside of the broken support (which may now act as resistance), then continues lower — this can offer a second entry point

Why It's Bearish

The descending triangle tells a story of shifting power between buyers and sellers:

• Lower highs = sellers stepping in earlier each time. After each bounce off support, the rally fails at a lower price than before. This means sellers are increasingly eager to sell and aren't willing to wait for higher prices.
• Buyers defend the same level but are under growing pressure. The flat support shows that a group of buyers considers this price attractive — but each time they push price up, sellers knock it back down faster.
• Eventually selling pressure overwhelms support. The lower highs show that sellers are gaining control. When buying interest at support finally dries up or gets exhausted, the floor gives way and price drops sharply.

Expert References

• Edwards & Magee, Technical Analysis of Stock Trends — one of the earliest comprehensive treatments of triangle patterns. They classify the descending triangle as a bearish formation that tends to resolve to the downside, particularly when it appears in an existing downtrend.
• Thomas Bulkowski, Encyclopedia of Chart Patterns — Bulkowski's statistical research found that descending triangles break downward approximately 64% of the time. He also documented that the measured move target is reached in roughly 54% of downside breakouts.
• John Murphy, Technical Analysis of the Financial Markets — Murphy treats descending triangles as typically bearish and emphasizes the importance of volume declining as the pattern forms, then expanding on the breakout.

Controversy & Limitations

• Upside breakouts happen ~36% of the time. Despite its bearish reputation, more than a third of descending triangles break upward according to Bulkowski's data. Traders who assume the outcome is guaranteed can get caught on the wrong side.
• Context matters more than shape. A descending triangle that forms during a strong uptrend may actually be a bullish consolidation — the lower highs represent normal profit-taking within an intact uptrend, and the support level holds because the broader trend is still up.
• False breakdowns are common. Price may briefly dip below support on an intraday basis, trigger stops, and then reverse higher. Waiting for a closing break and volume confirmation helps filter these out.
• The pattern is subjective. Traders may disagree on where to draw the trendlines, how many touches are needed, and whether a particular formation truly qualifies as a descending triangle.