Put-Call Ratio (Open Interest) (180-Day)

Put-Call Ratio (Open Interest): The ratio of outstanding put contracts to outstanding call contracts at the close of the trading day, for options with the relevant expiration date.

Avista Corporation (AVA) had 180-Day Put-Call Ratio (Open Interest) of 3.1300 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1674
Historical Volatility (Parkinson)	0.1481
Implied Volatility (Calls)	0.1747
Implied Volatility (Puts)	0.2493
Implied Volatility (Mean)	0.2120
Put-Call Implied Volatility Ratio	1.4268
Implied Volatility Skew	0.0012
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	3.1300