Put-Call Ratio (Open Interest) (150-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.

MarketAxess Holdings Inc. (MKTX) had 150-Day Put-Call Ratio (Open Interest) of 0.1913 for 2026-10-16.

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Figures for 2026-10-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4671
Historical Volatility (Parkinson)	0.2204
Implied Volatility (Calls)	0.0375
Implied Volatility (Puts)	0.0575
Implied Volatility (Mean)	0.0475
Put-Call Implied Volatility Ratio	1.5345
Implied Volatility Skew	0.0094
Option Statistics
Put-Call Ratio (Volume)	0.3773
Put-Call Ratio (Open Interest)	0.1913