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	param	t-stat
$ω$	0.9607	7.90
$α$	0.1489	4.19
$β$	0.7710	17.41
$γ_{1}$	0.0309	2.58
$γ_{2}$	-0.0447	-2.94

V-Lab

Grupo Aval Acciones y Valores SA Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:40.05% (-2.95%)

Date Range:

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News Impact Curve

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