Put-Call Ratio (Volume) (150-Day)

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

Northwest Natural Gas Company (NWN) had 150-Day Put-Call Ratio (Volume) of 0.0000 for 2026-11-02.

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Figures for 2026-11-02

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1860
Historical Volatility (Parkinson)	0.1874
Implied Volatility (Calls)	0.2186
Implied Volatility (Puts)	0.2303
Implied Volatility (Mean)	0.2245
Put-Call Implied Volatility Ratio	1.0536
Implied Volatility Skew	0.0422
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.5020