If you like volatility and gambling check out WKHS. A lot of people banking on a USPS contract that should be announced relatively soon. It could fly or die based on that news but if it crashes it may be a good time to buy for the future.
CNK has been pretty volatile as well and is one of the virus stocks that got hit hard but hasn’t recovered at all. I’m in the red right now and starting to get a bit worried because major movie releases keep getting delayed. The good news is unlike AMC, they have ~900 million in cash IIRC or enough to get through 2021 if things stay the way they are. Any good vaccine news and it will spike, if a vaccine comes out next year I would double down assuming the price is somewhere in the mid teens or lower.
Missed my chance with NVAX, had been day and swing trading that stock off an on for about 2-3 years. Every time it went up it would come back down like clock work....until the virus hit. I owned 2K shares at ~$7 each, after a made a few grand I sold, expecting it to come back down like always. It kept going up and I was laughing to myself that it would crash hard, typical pump and dump. I think it finally hit $180 pps or a little more. I could still use a high bridge just thinking of how much I could have made.