Maybe I am naïve but I don't think the shorts are worried about Anavex and any impending news. I do not know what techniques they have available to protect themselves from a sudden price rise but it seems to me that they have such techniques available to them.
We saw some of what could happen with Game Stop. The first thing that was noticeable was that the hedges were able to lay hands of large sums of money in an attempt to wait out the share price spike. We have also seen days in Anavex where there was huge volumes traded out of the blue for no particular discernable reason.
The volumes of those days would allow the approximately 18 million shares shorted to get lost in the mix of trading.
My admittedly crude calculations value the present short position at close to $250,000,000 so they have a lot of room before they get hurt.
My guess is that if there is a short squeeze they will wait for the peak and short some more and try to work the SP back down over a period of days or weeks. These guys have big bank to work with.
Bottom line for me is that if there is a short squeeze it will be quick spike followed by a decline in the SP. Personally I'd love to see the shorts get burned, I just don't think it will happen.
News 
Market Data 
Discover 
