Look at the chart - it's gone up in virtually a straight line over the last few days - it's taken a pause, with some profit taking, or maybe the MMs are short of stock and want to balance their books. It's also probably being driven by bid expectations (wrongly, I think), and perhaps some of the steam has come out.
Bearing in mind the amount by which the price has risen recently, I don't think dropping off a few pence is at all bad- wouldn't be surprised to see it drop more until there is some more news (which may not be until next year)
Bit cheeky, but the best place for AZM discussion is
here. Sorry MAM, but that's where it's being discussed by a lot of people who know the company and the markets it's in, very well.