Indeed,news that China's government plans to rein in bank lending concerned investors Wednesday and Thursday, sending BHP's share price lower.

VOA: standard.2010.01.21

Its share price has tumbled nearly 90 percent in value during the last year.

VOA: standard.2009.03.30

But there is a lot of uncertainty, and of course that is manifest in the share price which has lost about 40 percent of its value over the course of the past six or seven weeks."

VOA: standard.2010.06.18