iShares Nasdaq Biotechnology (IBB) option implied volatility at low end of range

iShares Nasdaq Biotechnology (NASDAQ: IBB) March weekly call option implied volatility is at 22, March is at 19, April is at 20; compared to its 52-week range of 15 to 40 after reports of FDA Commissioner Scott Gottlieb is resigning. Call put ratio 1 call to 1.2 puts. ​

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