No, there isn't a trading halt, that's easy enough to google, or check marketwatch.com or etrade.
The only reason I'm answering you, is to be polite, I am not an expert, but I doubt any of these other assholes would give a real answer, so here's my best shot.
Hopefully, some other assholes will add to and correct my answers.
A reason for a trading halt would be due to an known date, for FDA approval/review/rejection, because that usually drastically effects the price per share, especially if it's a small, new biotech that is trying to treat cancer. I doubt there would be any trading halt for an OTC nasal spray, but I could be wrong, no asshole on here will answer me.
Another reason for a trading halt would be a merger/by out announcement, that would drastically effect the PPS. Many biotechs are volatile, increasing 1000% percent upon approval/rejection/by out.
Another reason for a trading halt is like the halt that happened with GPRO recently, I think it was Q3 that was so poor, people sold so much stock, the Nasdaq or NYSE had to halt the trading, or the PPS would have went down to .01 based on panic selling.
A lawsuit verdict could also result in a trading halt.
Trading halts usually only last a few hours.
The most risky biotechs to get involved with are cancer, penny, buiotechs, but they can also be the most rewarding.
Don't invest life savings or more than u can afford to lose.
Don't go all in, pick a low entry point after research and then if it goes down more, you can potentially buy more to average down if the future still looks good, this will lower your PPS.
I could say more, but...
