Didn't you short another stock in an up trending channel too? Was it FB?
Being that shorts are tough in this market, I keep my stops extra tight.
I am short here for a couple reasons. 1, the stochastics on multiple time frames are rolling over. Weekly included. 2nd, DD is just below major resistance at 67.90. A close above 76.90 would be bullish so my stop is 68.75.
Lastly, upward channels typically break to the downside. Conversely downward channels typically break to the upside. Here we have a upward channel. DD has recently made 52 week highs and is trading below strong resistance. I'm betting that the high of 69.75 put in on 6/9 will be it's high for a while.
Thanks for asking and please remember, it doesn't matter if the trade works or not. As long as you learn from it. Always learning.