Put-Call Ratio (Volume) (20-Day)

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

Merck & Co., Inc. (MRK) had 20-Day Put-Call Ratio (Volume) of 0.5760 for 2026-07-06.

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Figures for 2026-07-06

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3501
Historical Volatility (Parkinson)	0.2647
Implied Volatility (Calls)	0.2836
Implied Volatility (Puts)	0.2715
Implied Volatility (Mean)	0.2775
Put-Call Implied Volatility Ratio	0.9573
Implied Volatility Skew	-0.0146
Option Statistics
Put-Call Ratio (Volume)	0.5760
Put-Call Ratio (Open Interest)	0.2445