They exercised their calls and didn't want to hold the shares over a long weekend. Just locked in their profit after hours (and a nice one I bet). Of course they probably could have made another 10% next week. We'll see.
It's not a mistake. Or it is a mistake. Some one entered a market order sell for AH and it hitted the low bids, Notice all four orders filled at the same time? It must be from the same market sell. The guy must have saw a bid at $3.76 and presumed he can get that price doing a market sell order.
maybe the Dow Jones will go to 11000 but if history is any guide to future events this will not be in a straight line. Just look how the Dow performed during the period 2000 - 2003. We will see a huge upward move to 13000 soon. I did not add to my position yet, keeping my powder dry still, but soon the Dow will rocket and PAL as well. Probably on the longer term we are in trouble with the markets so best trade PAL accordingly.
They will probably break 12000 shaking all the weak players and then boost it back to 13000 before we see another fall to 11000.