This daily chart of AMT presents a good opportunity to get long ahead of a breakout higher. The stock looks to be in Wave 4 of an impulsive move that began back in 2016. Wave 3 extended to the 161.8% Fibonacci extension of Wave 1 and clearly divides into five smaller waves. We're now looking for the ongoing triangle in Wave 4 (blue) to complete somewhere in the range of the prior Wave 4 (red). Also note that price is holding long-term trendline support.
Initiating a long position at 142 ahead of earnings on July 31. Immediate target is the Wave 3 high around 155 with an extension through 160. A move below 130 will cause me to reevaluate the trade.