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.

Vistra Corp. (VST) had 30-Day Put-Call Ratio (Open Interest) of 2.0193 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.6831
Historical Volatility (Parkinson)	0.4457
Implied Volatility (Calls)	0.5086
Implied Volatility (Puts)	0.4836
Implied Volatility (Mean)	0.4961
Put-Call Implied Volatility Ratio	0.9508
Implied Volatility Skew	0.0212
Option Statistics
Put-Call Ratio (Volume)	0.9405
Put-Call Ratio (Open Interest)	2.0193