Companhia Energetica de Mina (CIG) is at an implied volatility extreme low of 11.58% that is less than 100.00% of past values prior to 4/20/2010 (Close Price 17.23). On prior close, 4/19/2010, the implied volatility was 54.66% and at the 87.31 percentile. Closing price was 17.07.

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