b,not to argue about some of your points.But if you add day traders/flippers new buys and shorts be covered and then shorted again etc.In the mix you could see the volume swell considerably also.tia glta
On your point 5, You have the dates 3/14, 15/ 16 highlighted, are those the "high volume days" you are referencing? Those are the dates, per PSS's/Global Grid filing dated 3/20/11, that purchases were made.