Speak of the devil. SBSH has already moved to best bid and best ask. Let's see how badly they (that is, those using SBSH) want to stay on ask, or if they want to drive this lower.
There is no doubt in my mind. These two ARE the dirtiest market makers in the buisness. They team up every day and work together on various stocks, With two mm's teamed up they have mega control on most days.