Currently No known side effects to either drug, to my knowledge. Sure that will change, every drug has side effects. They are very close in structure supposedly to naturally occurring compounds in the body, hence the lack of extra side effects. That being said, every action in the body has some sort of reaction, so there should be a few 'natural' consequences i.e. Side effects of these drugs, though those remain to be seen.
Price stuff is simple to understand. We are unknown, low volume trading. If someone wants to load up before the trial build up phase, where all the money is made on Wall Street, they would use the lack of volume to their advantage. It's easy for even medium size players to manipulate a stock price, if most people don't know about it, and most people holding the stock aren't regularly buying and selling it. You sell some shares you don't have, tank the price, and hope to buy more than you sold to get it there, to justify the means. Or you use these high frequency trading programs to churn the share price slowly lower, and do it as cheaply as possible. I don't think anyone sold short in any large volume, probably the second option. Again, I truly doubt that anyone who has held this stock to this point would be selling any number of shares, no matter how low the price goes. Hence the fact that they couldn't sell it much lower without risking major losses. I also can't imagine that any institution would sell right before trial results, having held it this far. If they wanted to sell, they would've sold in late feb/early march, before data was initially expected. Everyone has their position by this time. What you are seeing is others trying to enter a position in this stock, as cheaply as possible, so they can sell shortly before data is released, or if they feel confident enough, to sell right after data is released. It's the age old game on Wall Street. I would be much more concerned if the price wouldn't have tanked. It would imply that nobody likes this stock, or feels comfortable playing the game with it and accumulating the shares. So, thus far, the reassuring pattern I look for, is maintained.
