A MM Could be starved for shares,make a deal with another MM who wants out,maybe that MM has an outstanding balance with the one looking for shares and they close it after hours to keep the pleebs(us)from getting cheap shares.
I was trying hard to get 4's this week,but nope....
MM's can't walk it down any more(I hope).They may walk it up to lure in the small fry and then dynamite them later.