Others will chime in, but they will fight tooth and nail until they just cannot any longer. Are we there yet, maybe, yes, no, time will tell. It definitely hurts them because they are selling air, they don't have shares to sell.
if the volume isn't as high as the last couple days, I would expect a pretty big shake, but it won't be anything other than humorous as everyone here knows how close we are to a sqeeze. On the other hand, if the volume sustains these levels or increases I would imagine the MM's are about screwed.