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.

Donaldson Company, Inc. (DCI) had 180-Day Put-Call Ratio (Open Interest) of 0.2002 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2335
Historical Volatility (Parkinson)	0.1940
Implied Volatility (Calls)	0.2211
Implied Volatility (Puts)	0.2361
Implied Volatility (Mean)	0.2286
Put-Call Implied Volatility Ratio	1.0681
Implied Volatility Skew	0.0126
Option Statistics
Put-Call Ratio (Volume)	0.0308
Put-Call Ratio (Open Interest)	0.2002