Put-Call Ratio (Open Interest) (30-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.

United Therapeutics Corporation (UTHR) had 30-Day Put-Call Ratio (Open Interest) of 2.2517 for 2026-07-20.

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Figures for 2026-07-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2133
Historical Volatility (Parkinson)	0.2212
Implied Volatility (Calls)	0.3980
Implied Volatility (Puts)	0.3416
Implied Volatility (Mean)	0.3698
Put-Call Implied Volatility Ratio	0.8581
Implied Volatility Skew	0.0232
Option Statistics
Put-Call Ratio (Volume)	0.0769
Put-Call Ratio (Open Interest)	2.2517