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.

MSA Safety Incorporporated (MSA) had 30-Day Put-Call Ratio (Open Interest) of 2.0842 for 2025-12-04.

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Figures for 2025-12-04

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2387
Historical Volatility (Parkinson)	0.2270
Implied Volatility (Calls)	0.2705
Implied Volatility (Puts)	0.2596
Implied Volatility (Mean)	0.2650
Put-Call Implied Volatility Ratio	0.9598
Implied Volatility Skew	0.0915
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	2.0842