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.

Ultragenyx Pharmaceutical Inc. (RARE) had 20-Day Put-Call Ratio (Volume) of 2.4204 for 2026-09-04.

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Figures for 2026-09-04

Volatility Metrics
Historical Volatility (Close-to-Close)	2.4146
Historical Volatility (Parkinson)	0.5157
Implied Volatility (Calls)	0.6258
Implied Volatility (Puts)	0.5425
Implied Volatility (Mean)	0.5841
Put-Call Implied Volatility Ratio	0.8669
Implied Volatility Skew	0.0413
Option Statistics
Put-Call Ratio (Volume)	2.4204
Put-Call Ratio (Open Interest)	1.7181