Put-Call Ratio (Volume) (60-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

Armata Pharmaceuticals, Inc. (ARMP) had 60-Day Put-Call Ratio (Volume) of 0.0000 for 2026-04-21.

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Figures for 2026-04-21

Volatility Metrics
Historical Volatility (Close-to-Close)	1.2324
Historical Volatility (Parkinson)	1.1260
Implied Volatility (Calls)	1.0316
Implied Volatility (Puts)	1.1273
Implied Volatility (Mean)	1.0795
Put-Call Implied Volatility Ratio	1.0928
Implied Volatility Skew	-0.0829
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	1.7857