Historical Volatility (Close-to-Close) (20-Day)
Historical Volatility (Close-to-Close): The past volatility of the security over the selected time frame, calculated using the closing price on each trading day.
The Energy Select Sector SPDR Premium Income Fund (XLEI) had 20-Day Historical Volatility (Close-to-Close) of 0.0812 for 2025-09-23.
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