To be honest, all these mining companies are throwing HUGE amounts at I/O... and doing it with good reason. They'd have their own advisers, forecasts, etc that they draw on.
As for the gloom in Aus, I believe Cameron Clyne gave a great description when talking on 3AW, which was something like:
Generally 6weeks before an election, people are tight with money because of the uncertainty. Now due to the nature in which this government was formed, people are still uncertain. It's like a 3year election.
AGO Price at posting:
$2.11 Sentiment: LT Buy Disclosure: Held