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	param	t-stat
$ω$	1.0545	4.57
$α$	0.2505	8.56
$β$	0.6476	18.30
$γ_{1}$	0.0124	0.21
$γ_{2}$	-0.0181	-0.22
$γ_{3}$	0.0541	0.97
$γ_{4}$	-0.1308	-2.09
$γ_{5}$	0.1363	2.15
$γ_{6}$	-0.1314	-2.17
$γ_{7}$	0.2027	2.61

V-Lab

Ishii Hyoki Co Ltd Spline-GARCH Volatility Analysis

Volatility Prediction for Friday, February 13th, 2026:36.43% (+6.88%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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