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	param	t-stat
$ω$	0.6316	5.37
$α$	0.1018	4.96
$β$	0.7668	17.24
$γ_{1}$	-0.3239	-3.13
$γ_{2}$	0.5101	3.58
$γ_{3}$	-0.3746	-4.67
$γ_{4}$	0.3319	4.61
$γ_{5}$	-0.1900	-3.02

V-Lab

Sinopec Engineering Group Co Ltd Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, February 9th, 2026:28.19% (-0.39%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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