Trying to buy shares at the ask, and they won't fi

Trying to buy shares at the ask, and they won't fill me.

My guess is that those 250k shares on the ask aren't really available. Must be a short sell order. I might get filled with phantom shares. This is a good sign.

Update: LOL! Finally got filled and ATDF immediately shows up on the ask with 345k shares. Short sellers beware. I can play your game.