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.

ARK Innovation ETF (ARKK) had 120-Day Put-Call Ratio (Volume) of 4.4231 for 2026-10-19.

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Figures for 2026-10-19

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3608
Historical Volatility (Parkinson)	0.2712
Implied Volatility (Calls)	0.3704
Implied Volatility (Puts)	0.3856
Implied Volatility (Mean)	0.3780
Put-Call Implied Volatility Ratio	1.0409
Implied Volatility Skew	0.0163
Option Statistics
Put-Call Ratio (Volume)	4.4231
Put-Call Ratio (Open Interest)	2.7645