Implied Volatility (Calls) (120-Day)

Implied Volatility (Calls): The forecasted future volatility of the security over the selected time frame, derived from the pricing of the at-the-money call options with the relevant expiration date.

Vanguard Communication Services Index Fund ETF Shares (VOX) had 120-Day Implied Volatility (Calls) of 0.2101 for 2026-06-04.

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Volatility Metrics
Historical Volatility (Close-to-Close)	0.1690
Historical Volatility (Parkinson)	0.1353
Implied Volatility (Calls)	0.2101
Implied Volatility (Puts)	0.2111
Implied Volatility (Mean)	0.2106
Put-Call Implied Volatility Ratio	1.0048
Implied Volatility Skew	0.0519
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.0149