There will be sharp % increases and drops in the next three days since all this new buying is being done by speculators that the earnings news will be good. Meanwhile, there will be concerted efforts to shake out weak hands to pick up shares cheap.
I think today will close near its high of 4.27. As the volatility increases this week and more highs are hit, the pressure on the shorts to cover since some of them will get too nervous about the potential pop due to good earnings.
Hold your shares right up to earnings to get the highest price. Just my opinion, though.