Put-Call Ratio (Volume) (20-Day)

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

Donaldson Company, Inc. (DCI) had 20-Day Put-Call Ratio (Volume) of 1.0000 for 2026-07-20.

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Figures for 2026-07-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2284
Historical Volatility (Parkinson)	0.2156
Implied Volatility (Calls)	0.2673
Implied Volatility (Puts)	0.2638
Implied Volatility (Mean)	0.2655
Put-Call Implied Volatility Ratio	0.9868
Implied Volatility Skew	0.1626
Option Statistics
Put-Call Ratio (Volume)	1.0000
Put-Call Ratio (Open Interest)	0.2717