Put-Call Ratio (Open Interest) (20-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.

ARK Autonomous Technology & Robotics ETF (ARKQ) had 20-Day Put-Call Ratio (Open Interest) of 0.3373 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2571
Historical Volatility (Parkinson)	0.1962
Implied Volatility (Calls)	0.2740
Implied Volatility (Puts)	0.2799
Implied Volatility (Mean)	0.2770
Put-Call Implied Volatility Ratio	1.0212
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.2000
Put-Call Ratio (Open Interest)	0.3373