Implied Volatility (Calls) (180-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 Total Bond Market Index Fund ETF Shares (BND) had 180-Day Implied Volatility (Calls) of 0.0583 for 2026-06-03.

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Volatility Metrics
Historical Volatility (Close-to-Close)	0.0380
Historical Volatility (Parkinson)	0.0261
Implied Volatility (Calls)	0.0583
Implied Volatility (Puts)	0.0510
Implied Volatility (Mean)	0.0547
Put-Call Implied Volatility Ratio	0.8747
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.9092