Put-Call Ratio (Volume) (180-Day)

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

Vistra Corp. (VST) had 180-Day Put-Call Ratio (Volume) of 0.2112 for 2026-07-20.

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Figures for 2026-07-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4677
Historical Volatility (Parkinson)	0.4338
Implied Volatility (Calls)	0.5397
Implied Volatility (Puts)	0.5396
Implied Volatility (Mean)	0.5396
Put-Call Implied Volatility Ratio	0.9999
Implied Volatility Skew	0.0018
Option Statistics
Put-Call Ratio (Volume)	0.2112
Put-Call Ratio (Open Interest)	1.2667