wait till breakout... The Ascending Triangle Bottom In the ascending triangle bottom, the ascending triangle usually acts as a continuation pattern in an uptrend, but sometimes can be found at the bottom of a downtrend, signaling a reversal. The ascending triangle, one of two right-angle triangle patterns, has a flat upper trendline while the lower trendline slopes up. This is indicative of more aggressive buying than selling as the lows get progressively higher, while the highs make it to about the same level each time before breaking out to the upside.