Put-Call Ratio (Volume) (180-Day)

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

Altimmune, Inc. (ALT) had 180-Day Put-Call Ratio (Volume) of 3.5680 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.6664
Historical Volatility (Parkinson)	0.6009
Implied Volatility (Calls)	0.9450
Implied Volatility (Puts)	1.0153
Implied Volatility (Mean)	0.9802
Put-Call Implied Volatility Ratio	1.0744
Implied Volatility Skew	-0.0551
Option Statistics
Put-Call Ratio (Volume)	3.5680
Put-Call Ratio (Open Interest)	0.1298