Question why would anybody short stock before good news On USA side there were 1.5 million shares volume. 75% were short, so only 375,000 shares was regular trade.
You know what happening in the free economy if there is shortage of something, stock price would go to the sky, so "somebody" intervened, borrowed shares and sold them as a short.
That "somebody" control stock price, it's expensive but if he or she allowed to go stock price up ,
It would be catastrophic for" somebody".
PS.Years ago I shorten privately (my coworkers) shares of Jaguar Mining (JAG) it's possible, nobody will know.