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	param	t-stat
$ω$	1.2238	7.43
$α$	0.1084	7.21
$β$	0.8552	47.71
$γ_{1}$	-0.0194	-1.68
$γ_{2}$	0.0490	2.77
$γ_{3}$	-0.0414	-4.02

V-Lab

Invesco S&P Global Water Index ETF Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Friday, February 13th, 2026:13.03% (-0.33%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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