Hi everyone,
When I see 500 shares filling the ask over and over again, I take note and tend to watch very closely. It is speculation on the size of the total position, but this is the way banks buy. We don't know how large the position may be, that is speculation, but they are definitely accumulating.
Look at size of last sale, and the majority of the time it is 500.
This is not strange, it is a great sign.