think its a fund battle. monthly opex thurs. first shots in this weeks battle. maybe everyone playing the weekly where to pin the groupon. some funds trying to hold it babove 16.50, other trying to push it lower. Some big trades tried to push stock up, but barely moved the needle. may go for a 16 pin this week. who knows. earnings coming soon. don't fall for the head fake. they will sell when they get best price they can. that seems to be the pattern.