Planet Fitness doesn't seem to have a great reputation as far as gyms go. It's basically like the cheapest option out there from what I've heard. Still, it's enjoyed quite the run up from its price of $35 at the start of April.
You probably have noticed a pattern in the TAs that are posted here. Accumulation/distribution on this has remained FLAT despite the huge run up since the beginning of April. To me, this is an indication of an underlying weakness in the stock. However, I would like to see a little more downward momentum before shorting this with serious money. However, a few small positions here and there don't seem like a bad idea. IV is relatively low and short-term May 15 puts aren't too pricey. However, I may wait a little longer to see how it plays out before buying a large position as I am not sure what it will do up to earnings.