Put-Call Ratio (Volume) (10-Day)

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

Canadian National Railway Company (CNI) had 10-Day Put-Call Ratio (Volume) of 1.4286 for 2026-07-20.

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Figures for 2026-07-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2795
Historical Volatility (Parkinson)	0.1647
Implied Volatility (Calls)	0.2777
Implied Volatility (Puts)	0.2370
Implied Volatility (Mean)	0.2573
Put-Call Implied Volatility Ratio	0.8533
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	1.4286
Put-Call Ratio (Open Interest)	0.7860