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.

First Trust Indxx Critical Metals ETF (FMTL) had 10-Day Historical Volatility (Parkinson) of 0.1185 for 2025-12-29.

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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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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
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Figures for 2025-12-29

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3112
Historical Volatility (Parkinson)	0.1185
Implied Volatility (Calls)	--
Implied Volatility (Puts)	--
Implied Volatility (Mean)	--
Put-Call Implied Volatility Ratio	--
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	--