Put-Call Ratio (Volume) (30-Day)

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

89BIO (ETNB) had 30-Day Put-Call Ratio (Volume) of 11.1664 for 2025-10-13.

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Figures for 2025-10-13

Volatility Metrics
Historical Volatility (Close-to-Close)	2.1371
Historical Volatility (Parkinson)	0.1863
Implied Volatility (Calls)	0.4207
Implied Volatility (Puts)	0.2618
Implied Volatility (Mean)	0.3413
Put-Call Implied Volatility Ratio	0.6224
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	11.1664
Put-Call Ratio (Open Interest)	6.4331