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Biogen (BIIB) call put ratio 1.6 calls to 1 put after acquiring Apellis (APLS)

March 31, 2026 10:15 AM EDT

Biogen (NASDAQ: BIIB) 30-day option implied volatility is at 40; compared to its 52-week range of 28 to 60. Call put ratio 1.6 calls to 1 put after acquiring Apellis (APLS) for $5.6B.



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