Vanguard Utilities Etf (VPU) 30-day option implied volatility at 20

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VANGUARD UTILITIES ETF (NYSE: VPU) Delayed: 188.87 +2.07 (1.11%)
Previous Close $186.80    52 Week High $115.81 
Open $186.81    52 Week Low $89.65 
Day High $189.26    P/E N/A 
Day Low $186.66    EPS $0.00 
Volume 178,287