Imo they are buying then selling low and shorting...its starting make alot of sense..dont be fooled by some of the buying and selling...whoever has L2 make sure you watch if you can on high volume days cause trading has been very fishy the past week, fishier than usual...this helped me understand it more clear.....http://seekingalpha.com/instablog/2918951-g-hudson/1026551-how-the-big-players-manipulate-the-stock-market