BHP Billiton PLC (BBL) is at an implied volatility extreme low of 32.71% that is less than 99.45% of past values prior to 2/11/2010 (Close Price 60.77). On prior close, 2/10/2010, the implied volatility was 40.57% and at the 25.97 percentile. Closing price was 58.34.

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