Historical Volatility (Close-to-Close) (120-Day)

Historical Volatility (Close-to-Close): The past volatility of the security over the selected time frame, calculated using the closing price on each trading day.

First Trust Developed Markets ex-US Small Cap AlphaDEX ETF (FDTS) had 120-Day Historical Volatility (Close-to-Close) of 0.1288 for 2025-08-29.

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Volatility Metrics
Historical Volatility (Close-to-Close)	0.1288
Historical Volatility (Parkinson)	0.0228
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)	--