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	param	t-stat
$ω$	0.8753	6.40
$α$	0.0995	8.49
$β$	0.8086	36.27
$γ_{1}$	-0.0657	-1.43
$γ_{2}$	0.1896	2.61
$γ_{3}$	-0.2200	-4.12
$γ_{4}$	0.1046	2.22
$γ_{5}$	0.0899	2.11
$γ_{6}$	-0.2559	-6.53
$γ_{7}$	0.2540	6.28
$γ_{8}$	-0.0928	-2.33
$γ_{9}$	-0.0453	-1.03
$γ_{10}$	0.0643	0.86

V-Lab

NACCO Industries Inc Spline-GARCH Volatility Analysis

Volatility Prediction for Tuesday, February 10th, 2026:45.70% (-2.64%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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