Maybe it was a legitimate sell order, but it disappeared just or a little before close I am pretty sure. The 575k order is still there at 40c.
Looked like a 31c close until someone dropped in sell for a bit over 50k at 30c very close to 4:10.
So after a day of very heavy shorting, aggressive shorting the next morning plus a more normal trading day today, has resulted in a drop of 1c and I would think a few people picking up a bargain and eagerly awaiting how next week will play out.
I'd assume a few more eyes than usual will be here Monday morning as more people become aware of what is possibly happening here.