on monday too the bid size at 4s was huge and it didn't waver a bit when trading at 5s. but look at yesterday, all the sudden dump came and we touched 3s. as for the huge bid at 4s today, some traders started a PR rumor and the bids started growing. if you have looked around 3:30 pm, many bids vanished as traders got a wind of P&D. too bad, i bought this one at 7s and hoping to atleast break-even.