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	param	t-stat
$ω$	1.0000	7.69
$α$	0.1153	16.29
$β$	0.8628	150.10
$γ$	-0.4839	-8.35
$δ$	1.4355	28.04

V-Lab

CBOE EFA ETF Volatility Index APARCH Volatility Analysis

Volatility Prediction for Friday, December 26th, 2025:105.99% (-4.55%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other CBOE EFA ETF Volatility Index Analyses