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	param	t-stat
$ω$	0.8159	8.10
$α$	0.0602	2.79
$β$	0.8570	13.60
$γ_{1}$	0.0582	2.90

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GrafTech International Ltd. Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, February 9th, 2026:276.63% (+140.42%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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