I shorted @ $25.40. Whenever you see it spike up (it spikes in down market) you short it. It's a gift. It's always a good short, as it always goes down over time in a bull market. In terms of today, hard to say. You would be late to the party, so
I would say wait, although it's never a "bad" short. Look @ the two year chart. NEVER hold it long though. Long positions are only for day trades. Says so right in the prospectus, in BOLD print.