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.

Allison Transmission Holdings, Inc. (ALSN) had 120-Day Put-Call Ratio (Volume) of 1.9796 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2487
Historical Volatility (Parkinson)	0.2696
Implied Volatility (Calls)	0.2853
Implied Volatility (Puts)	0.3100
Implied Volatility (Mean)	0.2977
Put-Call Implied Volatility Ratio	1.0865
Implied Volatility Skew	0.0416
Option Statistics
Put-Call Ratio (Volume)	1.9796
Put-Call Ratio (Open Interest)	0.9428