Put-Call Ratio (Open Interest) (90-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.

KalVista Pharmaceuticals, Inc. (KALV) had 90-Day Put-Call Ratio (Open Interest) of 0.4596 for 2026-04-20.

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Figures for 2026-04-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5914
Historical Volatility (Parkinson)	0.6092
Implied Volatility (Calls)	0.7983
Implied Volatility (Puts)	0.8875
Implied Volatility (Mean)	0.8429
Put-Call Implied Volatility Ratio	1.1118
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.4596