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.
ETRACS Qtrly Pay 1.5x Levragd MarketVector BDC Liquid Indx ETN (BDCX) had 30-Day Historical Volatility (Parkinson) of 0.1044 for 2025-05-30.