The Descending Triangle is the bearish mirror of the Ascending Triangle — a continuation chart pattern formed by a flat horizontal support line at the bottom and a downward-sloping resistance line at the top. Price oscillates between the two lines, making progressively lower highs while each decline hits the same flat support. The pattern narrows until price breaks down below support, typically with force.
The flat support represents a demand zone — buyers defend the same price level repeatedly. But the falling highs reveal diminishing buying interest: sellers are selling at progressively lower prices, forcing buyers to absorb more and more supply at ever-lower ceilings.
When the support line finally breaks, it signals that sellers have overwhelmed buyers at that level. Buyers who placed stop-losses below support are automatically stopped out, adding sell volume to the cascade. The release of pent-up selling pressure often produces a fast, sharp decline.
After breakdown below the flat support, target equals the widest height of the triangle subtracted from the breakdown price. Most reliable in a broader downtrend context. Note: ~25% of descending triangles break upward — always confirm direction before entering puts.
Example Chart
Flat support, falling highs converge, then breakdown below support