Put-Call Ratio (Open Interest) (60-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.

BioCryst Pharmaceuticals, Inc. (BCRX) had 60-Day Put-Call Ratio (Open Interest) of 0.0671 for 2026-09-04.

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Figures for 2026-09-04

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4714
Historical Volatility (Parkinson)	0.4434
Implied Volatility (Calls)	0.7210
Implied Volatility (Puts)	0.6485
Implied Volatility (Mean)	0.6847
Put-Call Implied Volatility Ratio	0.8995
Implied Volatility Skew	0.0432
Option Statistics
Put-Call Ratio (Volume)	0.7143
Put-Call Ratio (Open Interest)	0.0671