Historical Volatility (Parkinson) (10-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.

YieldMax Universe Fund of Option Income ETFs (YMAX) had 10-Day Historical Volatility (Parkinson) of 0.1229 for 2026-01-20.

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Over 300 data fields encompassing historical volatility, implied volatility, and put-call ratios for multiple time frames
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Figures for 2026-01-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2077
Historical Volatility (Parkinson)	0.1229
Implied Volatility (Calls)	0.2607
Implied Volatility (Puts)	--
Implied Volatility (Mean)	--
Put-Call Implied Volatility Ratio	--
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	7.5484
Put-Call Ratio (Open Interest)	1.8865