Put-Call Ratio (Volume) (120-Day)

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

Altimmune, Inc. (ALT) had 120-Day Put-Call Ratio (Volume) of 0.0276 for 2026-10-05.

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Figures for 2026-10-05

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4584
Historical Volatility (Parkinson)	0.5044
Implied Volatility (Calls)	0.7970
Implied Volatility (Puts)	0.6710
Implied Volatility (Mean)	0.7340
Put-Call Implied Volatility Ratio	0.8420
Implied Volatility Skew	0.0049
Option Statistics
Put-Call Ratio (Volume)	0.0276
Put-Call Ratio (Open Interest)	0.0681