Put-Call Ratio (Open Interest) (30-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.

Bank Of Montreal (BMO) had 30-Day Put-Call Ratio (Open Interest) of 1.2780 for 2025-12-04.

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Figures for 2025-12-04

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1601
Historical Volatility (Parkinson)	0.1699
Implied Volatility (Calls)	0.1773
Implied Volatility (Puts)	0.1959
Implied Volatility (Mean)	0.1866
Put-Call Implied Volatility Ratio	1.1050
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.8684
Put-Call Ratio (Open Interest)	1.2780