Interesting point: on the 23rd December when the MM dropped the price, most trades went through as unidentifiable buy or sell. Now I know i put in a purchase order for 100,000 just to see the price I could get - and back came 5.62 when the bid/offer was 5.5 to 5.75 - this means that it would have been shown as a SALE when in fact it was a BUY - because of the spurious way these things get recorded. To base BUY/SELL indication on price judgement is ludicrous in the 21st Century.
Anyway, how many Sales were actually BUYS! And is this a MM trick - I.e make people think that sales are going through when in fact BUY's are going through. For whatever reason the MM may choose!