Put-Call Implied Volatility Ratio (30-Day)

Put-Call Implied Volatility Ratio: The ratio of implied volatilities of the at-the-money puts to the at-the-money calls.

Vanguard Communication Services Index Fund ETF Shares (VOX) had 30-Day Put-Call Implied Volatility Ratio of 0.8687 for 2026-07-20.

Over 300 data fields encompassing historical volatility, implied volatility, and put-call ratios for multiple time frames
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Figures for 2026-07-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2176
Historical Volatility (Parkinson)	0.1515
Implied Volatility (Calls)	0.2342
Implied Volatility (Puts)	0.2034
Implied Volatility (Mean)	0.2188
Put-Call Implied Volatility Ratio	0.8687
Implied Volatility Skew	0.0708
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	6.0000