Put-Call Ratio (Open Interest) (10-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.

Ultragenyx Pharmaceutical Inc. (RARE) had 10-Day Put-Call Ratio (Open Interest) of 1.1378 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.7744
Historical Volatility (Parkinson)	0.6329
Implied Volatility (Calls)	0.5839
Implied Volatility (Puts)	0.6622
Implied Volatility (Mean)	0.6231
Put-Call Implied Volatility Ratio	1.1342
Implied Volatility Skew	0.1445
Option Statistics
Put-Call Ratio (Volume)	2.6042
Put-Call Ratio (Open Interest)	1.1378