Put-Call Ratio (Open Interest) (30-Day)

Put-Call Ratio (Open Interest): The ratio of outstanding put contracts to outstanding call contracts at the close of the trading day, for options with the relevant expiration date.

Vanguard Morningstar Small-Cap Growth ETF (VBK) had 30-Day Put-Call Ratio (Open Interest) of 0.1037 for 2026-09-01.

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Figures for 2026-09-01

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1984
Historical Volatility (Parkinson)	0.1190
Implied Volatility (Calls)	0.1988
Implied Volatility (Puts)	0.1887
Implied Volatility (Mean)	0.1938
Put-Call Implied Volatility Ratio	0.9492
Implied Volatility Skew	0.0711
Option Statistics
Put-Call Ratio (Volume)	4.5000
Put-Call Ratio (Open Interest)	0.1037