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	param	t-stat
$ω$	0.2714	3.26
$α$	0.1167	7.72
$β$	0.8423	43.89
$γ_{1}$	-0.1661	-5.47
$γ_{2}$	0.2047	4.73
$γ_{3}$	-0.0559	-2.04
$γ_{4}$	0.0419	1.69
$γ_{5}$	-0.0608	-1.89

V-Lab

Hiroshima Gas Co Ltd Spline-GARCH Volatility Analysis

Volatility Prediction for Thursday, February 12th, 2026:13.99% (+0.54%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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