In contrast to the ascending triangle and the descending triangle pattern, which are continuation patterns (in the direction of the trend that prevailed until then), this is not the case with the symmetrical triangle pattern. This pattern does not assume a continuation.
Symmetrical Triangles represent a period of consolidation that may forecast either continuation of the existing trend or a trend reversal. In other words, it may represent a breakout or breakdown. A breakdown from the lower trendline marks the start of a new bearish trend, whereas a breakout from the upper trendline indicates the start of a new bullish trend.