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.

Summit Therapeutics PLC (SMMT) had 20-Day Put-Call Ratio (Volume) of 26.7952 for 2026-04-20.

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Figures for 2026-04-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.6818
Historical Volatility (Parkinson)	0.6284
Implied Volatility (Calls)	0.9255
Implied Volatility (Puts)	0.9444
Implied Volatility (Mean)	0.9350
Put-Call Implied Volatility Ratio	1.0204
Implied Volatility Skew	0.0255
Option Statistics
Put-Call Ratio (Volume)	26.7952
Put-Call Ratio (Open Interest)	0.5113