Put-Call Ratio (Volume) (30-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 30-Day Put-Call Ratio (Volume) of 0.0000 for 2026-09-01.

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Figures for 2026-09-01

Volatility Metrics
Historical Volatility (Close-to-Close)	1.0865
Historical Volatility (Parkinson)	1.1037
Implied Volatility (Calls)	1.5629
Implied Volatility (Puts)	2.5651
Implied Volatility (Mean)	2.0640
Put-Call Implied Volatility Ratio	1.6413
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.0052