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	param	t-stat
$ω$	1.4949	3.69
$α$	0.0920	9.03
$β$	0.8719	68.19
$γ_{1}$	0.0182	0.44
$γ_{2}$	0.0371	0.67
$γ_{3}$	-0.1339	-4.61
$γ_{4}$	0.1533	4.83
$γ_{5}$	-0.1372	-3.93
$γ_{6}$	0.0930	2.92
$γ_{7}$	-0.0282	-0.99
$γ_{8}$	-0.0076	-0.36

V-Lab

HeidelbergCement AG Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, December 22nd, 2025:29.19% (-1.34%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other HeidelbergCement AG Analyses