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	param	t-stat
$ω$	1.0329	4.71
$α$	0.0945	3.74
$β$	0.7218	8.59
$γ_{1}$	0.3510	2.96
$γ_{2}$	-0.6299	-3.78
$γ_{3}$	0.5405	5.08
$γ_{4}$	-0.5341	-3.80

V-Lab

Ingevity Corp Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, February 9th, 2026:42.45% (+0.17%)

Date Range:

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News Impact Curve

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