I don' know where you are short from, there were many places to put stops, right no it is $70.5 to $70.60, if that is taken out a fast rung to $75 could happen and that must not necessarily means the end of it, exuberance when coupled with momo and massive shorts could get this one above $100, so make sure you have a stop in place, plan the play and play the plan. If you don't, your head may serve as a ball in Afghan football (ng).
I don't like EXPE as a short, stated that many times, my "short" suggestions for those that wanted to play that games were XLNX at $23 plus , MMM at $127 plus, INTC at $17 plus, KO at $41 plus and PG around $85 or so. All with relatively close stops at the time (#msg-786775 of 2/22.)
The short position is huge in this stock - 44% of the float. Also, insitutional ownership is extremely large. This means that a short squeeze could be horrific.