Historical Volatility (Parkinson) (120-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 MSTR Option Income Strategy ETF (MSTY) had 120-Day Historical Volatility (Parkinson) of 0.6506 for 2025-05-21.

For much more extensive volatility insights, check out our new product VolVue:

Over 300 data fields encompassing historical volatility, implied volatility, and put-call ratios for multiple time frames
Download data in CSV, Excel, JSON, or XML format
Up to 20 years of data history
52-Week Rank and Percentile for all metrics and time frames

10-Day 20-Day 30-Day 60-Day
90-Day 120-Day 150-Day 180-Day

Figures for 2025-05-21

Volatility Metrics
Historical Volatility (Close-to-Close)	0.8011
Historical Volatility (Parkinson)	0.6506
Implied Volatility (Calls)	1.0702
Implied Volatility (Puts)	--
Implied Volatility (Mean)	--
Put-Call Implied Volatility Ratio	--
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	1.7250
Put-Call Ratio (Open Interest)	0.6743