trading anlaysis

I've obtained an analysis of all trades by broker from the 1st of August to the 13th.

Main seller is E-trade 1.1m. But e-trade are also the main buyer. Net seller of 200k

Confirmation of an Algo active. Merrill Lynch bought 274k at 59.68c.
But they sold 299k on the 12th at 53.25 (the day the stock go smashed). i.e. they sold it down. Must be trading on some computer algo buy/sell signals. They also bought stock on the 12th as well?

Rest of the trades are mixed between a whole bunch of brokers(nothing over 70,00 shares) but Bailleu and Mac insto are net buyers.
Comm Bank also active as a but and seller . Net zero.


I guess that means the stock is being controlled by retail investors via etrade, and by algo's such as Merrill Lynch.

Hope this helps