Put-Call Ratio (Volume) (120-Day)

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

Vistra Corp. (VST) had 120-Day Put-Call Ratio (Volume) of 0.2240 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5541
Historical Volatility (Parkinson)	0.4687
Implied Volatility (Calls)	0.5544
Implied Volatility (Puts)	0.5331
Implied Volatility (Mean)	0.5438
Put-Call Implied Volatility Ratio	0.9616
Implied Volatility Skew	0.0170
Option Statistics
Put-Call Ratio (Volume)	0.2240
Put-Call Ratio (Open Interest)	1.2055