PTCT - For people wondering about this one: The stock was at $30 on Feb 22. That evening or the next morning, they received a refuse to file letter from the FDA on their main drug. While this is not good, the company is going to tray and work it out with the FDA. That being said, the company is making millions off of it in other countries. Additionally, they have something like $330 million in cash. Lastly, this is not their only drug.
Based on that information, you have to think this sell off from $30 to $5.66 is way over done.