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.

Packaging Corporation of America (PKG) had 180-Day Put-Call Ratio (Open Interest) of 0.7019 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2467
Historical Volatility (Parkinson)	0.2228
Implied Volatility (Calls)	0.2632
Implied Volatility (Puts)	0.2650
Implied Volatility (Mean)	0.2641
Put-Call Implied Volatility Ratio	1.0071
Implied Volatility Skew	0.0372
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.7019