Alpine Immune Sciences (ALPN) options active on 3K contracts

Alpine Immune Sciences (NASDAQ: ALPN) 30-day option implied volatility is at 128; compared to its 52-week range of 50 to 154 into Vertex Pharmaceutials (VRTX) acquiring Alpine Immune Sciences (ALPN) for $65 per share. Call put ratio 1.1 calls to 1 put amid active August 40 puts active

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