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	param	t-stat
$ω$	1.0128	4.54
$α$	0.0944	3.93
$β$	0.7420	9.96
$γ_{1}$	0.3154	2.60
$γ_{2}$	-0.5546	-3.28
$γ_{3}$	0.4289	4.20
$γ_{4}$	-0.2766	-3.94

V-Lab

Ingevity Corp Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, February 9th, 2026:51.49% (+0.15%)

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News Impact Curve

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