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Visual Guide to Chart Patterns by Thomas N. Bulkowski

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Descending Triangles

Descending triangles share characteristics of their ascending brothers including one horizontal trendline and another sloping.

Exhibit 9.1 shows two examples in red.

Starting in May, the stock drops like a Texas hailstone and slams into support at A, bounces several times and forms a descending triangle.

Points A, B, and C highlight valleys that align along a horizontal bottom trendline. Along the top, peaks D, E, and F touch another line, but this one slopes downward. The two trendlines merge at the triangle’s apex.

Volume trends downward (G) until spiking on the breakout day, and that behavior is typical of many chart ...

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