Put-Call Ratio (Volume) (150-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

Krystal Biotech, Inc. (KRYS) 150-Day Put-Call Ratio (Volume) data is not available for 2026-10-16.

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Figures for 2026-10-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3962
Historical Volatility (Parkinson)	0.3826
Implied Volatility (Calls)	0.4998
Implied Volatility (Puts)	0.5091
Implied Volatility (Mean)	0.5044
Put-Call Implied Volatility Ratio	1.0186
Implied Volatility Skew	0.0131
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	3.4497