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.

Cellectis S.A. (CLLS) had 20-Day Put-Call Ratio (Open Interest) of 0.0378 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4544
Historical Volatility (Parkinson)	0.5416
Implied Volatility (Calls)	2.6637
Implied Volatility (Puts)	1.4251
Implied Volatility (Mean)	2.0444
Put-Call Implied Volatility Ratio	0.5350
Implied Volatility Skew	0.6534
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.0378