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Biogen (BIIB) call put ratio 3.7 calls to 1 put with a focus on September calls

August 20, 2026 4:50 AM EDT

Biogen (NASDAQ: BIIB) 30-day call option implied volatility is 32; compared to its 52-week range of 28 to 50. Call put ratio 3.7 calls to 1 put with a focus on September calls.



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