Put-Call Ratio (Volume) (20-Day)

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

Arrowhead Pharmaceuticals, Inc. (ARWR) had 20-Day Put-Call Ratio (Volume) of 0.2392 for 2026-04-21.

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Figures for 2026-04-21

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5166
Historical Volatility (Parkinson)	0.4335
Implied Volatility (Calls)	0.6200
Implied Volatility (Puts)	0.6801
Implied Volatility (Mean)	0.6501
Put-Call Implied Volatility Ratio	1.0969
Implied Volatility Skew	0.1866
Option Statistics
Put-Call Ratio (Volume)	0.2392
Put-Call Ratio (Open Interest)	0.5895