i think it was a test buy. in the greys, you cant see a bid or ask, but technically, there is one, but if you want to buy, you have to just fish for it.
thats the best way i can explain that.... you are "fishing" blind so you put your hook in at a level you like, but maybe you have to raise your bid/hook higher, til something bites.
thats what i think was going on today. so it appears someone is selling some at .0004 and some sold there.