I have no idea who was selling or buying, I know this moves around enough that you can make money on it if you're quick. I can't include myself in that group but I have taken advantage of the moves by flipping shares. I will sell a portion on a move and then buy back more shares with the same money when it falls back. It's dangerous however as long as it keep trending down you won't get left behind. I suppose you could also start with a quantity of shares and sell when it bounces, then buy back the original amount when it falls back and keep the change. I am trying to increase my position because I have convinced myself that the company has a future and I have a long window available.
Of course the possibility exists that I am indeed a DUMBA$$