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.

CRISPR Therapeutics AG (CRSP) had 20-Day Put-Call Ratio (Volume) of 0.1610 for 2026-09-02.

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Figures for 2026-09-02

Volatility Metrics
Historical Volatility (Close-to-Close)	0.6886
Historical Volatility (Parkinson)	0.4763
Implied Volatility (Calls)	0.6346
Implied Volatility (Puts)	0.5652
Implied Volatility (Mean)	0.5999
Put-Call Implied Volatility Ratio	0.8906
Implied Volatility Skew	0.0365
Option Statistics
Put-Call Ratio (Volume)	0.1610
Put-Call Ratio (Open Interest)	0.7092