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.

WD-40 Company (WDFC) had 30-Day Put-Call Ratio (Open Interest) of 0.1521 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3386
Historical Volatility (Parkinson)	0.3503
Implied Volatility (Calls)	0.2440
Implied Volatility (Puts)	0.2607
Implied Volatility (Mean)	0.2524
Put-Call Implied Volatility Ratio	1.0681
Implied Volatility Skew	0.0115
Option Statistics
Put-Call Ratio (Volume)	0.8947
Put-Call Ratio (Open Interest)	0.1521