Put-Call Ratio (Open Interest) (30-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 21Shares Bitcoin ETF (ARKB) had 30-Day Put-Call Ratio (Open Interest) of 0.4361 for 2025-05-30.

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Figures for 2025-05-30

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3253
Historical Volatility (Parkinson)	0.2168
Implied Volatility (Calls)	0.4250
Implied Volatility (Puts)	0.4311
Implied Volatility (Mean)	0.4280
Put-Call Implied Volatility Ratio	1.0145
Implied Volatility Skew	0.0424
Option Statistics
Put-Call Ratio (Volume)	0.0548
Put-Call Ratio (Open Interest)	0.4361