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.
UBS ETRACS Mnthly Pay 2xLvrgd US Smal Cap Hgh Div ETN Series B (SMHB) had 30-Day Historical Volatility (Parkinson) of 0.3901 for 2025-05-30.