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	param	t-stat
$ω$	1.3877	6.54
$α$	0.1240	7.70
$β$	0.8042	33.97
$γ_{1}$	0.0577	3.94
$γ_{2}$	-0.0963	-5.10
$γ_{3}$	0.0571	4.27
$γ_{4}$	-0.0330	-2.69
$γ_{5}$	0.0364	2.63
$γ_{6}$	-0.0427	-1.85

V-Lab

Sumitomo Corp Spline-GARCH Volatility Analysis

Volatility Prediction for Tuesday, February 24th, 2026:35.08% (+5.88%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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