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	param	t-stat
$ω$	20.6537	3.92
$α$	0.0474	19.54
$β$	0.9898	382.47
$ν$	4.3482	7.89

V-Lab

GrafTech International Ltd. GAS-GARCH Student T Volatility Analysis

Volatility Prediction for Wednesday, February 11th, 2026:110.54% (+12.49%)

Date Range:

Parameter Estimates

Other GrafTech International Ltd. Analyses