Nektar Therapeutic Systems (NKTR) is at an implied volatility extreme low of 39.09% that is less than 98.60% of past values prior to 4/8/2008 (Close Price 7.19). On prior close, 4/7/2008, the implied volatility was 57.30% and at the 34.95 percentile. Closing price was 7.35.

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