Orionwoo - yep, the SP action is extraordinary and can only mean one thing - imminent announcement.
In fact, I start to suspect the 23c buyer was intent on shorting the stock (to drive SP down so as to buy back loads more on the cheap prior to ann) - if so, I would estimate they have used up the lat of these and if my guess is correct, as soon as they see enough stock on the rack to sell, they'll take it all... just a theory, but either way, very cheap buying today...
ACN Price at posting:
18.5¢ Sentiment: Buy Disclosure: Held