This is a very popular tool among traders because it clearly shows that the demand for an asset is weakening, and when the price breaks below the lower support, it is a clear indication that downside momentum is likely to continue or become stronger. Descending triangles give technical traders the opportunity to make substantial profits over a brief period of time. The most common price targets are generally set to equal the entry price minus the vertical height between the two trendlines.
A descending triangle is the bearish counterpart of an ascending triangle.