Put-Call Ratio (Open Interest) (180-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.

Ecolab Inc. (ECL) had 180-Day Put-Call Ratio (Open Interest) of 0.1983 for 2026-01-13.

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Figures for 2026-01-13

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1956
Historical Volatility (Parkinson)	0.1738
Implied Volatility (Calls)	0.2260
Implied Volatility (Puts)	0.2268
Implied Volatility (Mean)	0.2264
Put-Call Implied Volatility Ratio	1.0036
Implied Volatility Skew	0.0324
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.1983