Yesterday half of the trade volume went at the ask. So far today it's only a third, however, the PPS seems to be holding up so far. Maybe we'll get more ask volume (and higher PPS) into the close again.

5/22/2020 3:15pm (Bid/Mid/Ask)
(218,947/124,489/155,150)

5/21/2020 4:00pm (Bid/Mid/Ask)
(245,775/159,455/395,745)