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	param	t-stat
$ω$	0.9618	2.40
$α$	0.4630	1.90
$β$	0.0000	0.00
$γ_{1}$	34.9129	1.49
$γ_{2}$	-80.0062	-2.26
$γ_{3}$	83.2945	2.98
$γ_{4}$	-91.2572	-3.30
$γ_{5}$	139.9616	4.30

V-Lab

Sumitomo Densetsu Co Ltd Spline-GARCH Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:16.42% (+0.02%)

Date Range:

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News Impact Curve

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