Put-Call Ratio (Volume) (120-Day)

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

MKS Inc. (MKSI) had 120-Day Put-Call Ratio (Volume) of 0.0470 for 2026-04-17.

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Figures for 2026-04-17

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5396
Historical Volatility (Parkinson)	0.4836
Implied Volatility (Calls)	0.6133
Implied Volatility (Puts)	0.6180
Implied Volatility (Mean)	0.6157
Put-Call Implied Volatility Ratio	1.0077
Implied Volatility Skew	0.0278
Option Statistics
Put-Call Ratio (Volume)	0.0470
Put-Call Ratio (Open Interest)	1.7143