Apellis Pharmaceuticals (APLS) call put ratio 1.2 calls to 1 put after Biogen (BIIB) acquires

Apellis Pharmaceuticals (NASDAQ: APLS) 30-day option implied volatility is at 16; compared to its 52-week range of 44 to 99. Call put ratio 1.2 calls to 1 put after Biogen (BIIB) acquired for $5.6B.

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