This has do with expiry of Sep quarter futures. A lot of squaring off needs to happen but it will go back to normal right before the market opens.
If you looked at the indicative opens for all stocks incl.BHP, CBA...etc at 9am (which I did) the indicatives prices were all down about 10%. Check the indicative on BHP right now to see what I mean.
Point is dont panic...its normal quarterly squaring off.
Peekay
BBG Price at posting:
$1.20 Sentiment: None Disclosure: Held