SPDR S&P Biotech ETF (XBI) option implied volatility flat

SPDR S&P Biotech ETF (NYSE: XBI) 30-day option implied volatility is at 36; compared to its 52-week range of 25 to 44 after speculation in Korean press that Samsung Group is in talks to acquire Biogen (BIIB). Call put ratio 1.3 calls to 1 put.

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