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.
Schwab Crypto Thematic Natural Language Processing ETF (STCE) had 20-Day Historical Volatility (Parkinson) of 0.4397 for 2026-10-16.
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