Xan..More sellers than buyers(LOL)...actually it looked almost like a slam and I suspect that the MMs were facing a massive amount of ask shares from whatever source...some pretty large positions were taken from watching it trade to get up to .0028 and if lots of those shares were put on the block for sale at .0028-.0029 the MMs saw it on level III and quickly dropped the bid with the ask following it.JMO of course of a possible cause.