This is pure speculation and as such it is very risk ON. I would ask, how much am I willing to lose, and bet that amt. Also take half your profits at 50% gain. The other thing is, the stock could simply be de-listed altogether which means you lose it all; you can't even let it ride.

Whenever a stock like this tanks, there are people who hold it to the bitter end, unwilling to take any loss and they hold in hope mode. That is overhang. As soon as the stock goes up, those people will suddenly say, oh I can get some money back or I can reduce my loss and they will sell. This causes immense selling pressure which drives down a dog stock like this.