Historical Volatility (Parkinson) (20-Day)
Historical Volatility (Parkinson): The past volatility of the security over the selected time frame, calculated using the high and low prices on each trading day.
WISeKey International Holding Ltd. Sponsored ADR (WKEY) had 20-Day Historical Volatility (Parkinson) of 0.8129 for 2026-01-09.
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