Put-Call Ratio (Volume) (20-Day)

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

Graham Corporation (GHM) 20-Day Put-Call Ratio (Volume) data is not available for 2026-10-16.

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Figures for 2026-10-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4425
Historical Volatility (Parkinson)	0.4648
Implied Volatility (Calls)	0.6945
Implied Volatility (Puts)	0.6842
Implied Volatility (Mean)	0.6894
Put-Call Implied Volatility Ratio	0.9851
Implied Volatility Skew	-0.0257
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	1.3333