I am relatively new to this, but here is my feeling.  With each positive news release, it reduces the chances of following assays being poor.  Anyone can get lucky to hit one home run, but doing it every game makes for a major league hitter. 

My guess (pure guess) is closing in high $4's tommorow, a close into the 5's next week, to settle around the $5 range by next fri.  That is a gain of about 20% over previous high. 

Of course, I picked the Leafs to win the Stanley Cup too!