Historical Volatility (Close-to-Close) (90-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.
ProShares UltraShort MSCI EAFE (EFU) had 90-Day Historical Volatility (Close-to-Close) of 0.2436 for 2025-10-13.
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