Dollar Tree is a remarkable success story, one that I certainly got completely wrong. This stock behaves in a perverse and inverse way to most others, the worse things get the better it does, it works sort of like food banks. The chart on the left is on an arithmetic and you can consequently see how the chart curves upwards at a sharper tangent as it goes vertical, where it is now. The chart on the right is semi-log, revealing a perfectly straight channel .
I have absolutely no idea what the count is! I would suggest that it also does not matter much, this is a sell as you hit the upper trend line (at $84, or so) or before that.