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.

Northwest Natural Gas Company (NWN) 180-Day Put-Call Ratio (Volume) data is not available for 2026-06-11.

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Figures for 2026-06-11

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2247
Historical Volatility (Parkinson)	0.2165
Implied Volatility (Calls)	0.2591
Implied Volatility (Puts)	0.1838
Implied Volatility (Mean)	0.2215
Put-Call Implied Volatility Ratio	0.7095
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.0173