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 0.7818 for 2026-06-04.

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Figures for 2026-06-04

Volatility Metrics
Historical Volatility (Close-to-Close)	0.8685
Historical Volatility (Parkinson)	0.7067
Implied Volatility (Calls)	0.7272
Implied Volatility (Puts)	0.8159
Implied Volatility (Mean)	0.7716
Put-Call Implied Volatility Ratio	1.1220
Implied Volatility Skew	0.1041
Option Statistics
Put-Call Ratio (Volume)	0.7818
Put-Call Ratio (Open Interest)	0.2525