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	param	t-stat
$ω$	1.8861	8.94
$α$	0.1663	4.99
$β$	0.7036	15.92
$γ_{1}$	0.0015	0.05
$γ_{2}$	0.0682	1.37
$γ_{3}$	-0.2012	-4.67
$γ_{4}$	0.2272	6.19
$γ_{5}$	-0.1041	-3.73
$γ_{6}$	-0.0464	-1.53
$γ_{7}$	0.1678	4.85
$γ_{8}$	-0.1802	-4.50
$γ_{9}$	0.1007	1.65

V-Lab

Hokkaido Gas Co Ltd Spline-GARCH Volatility Analysis

Volatility Prediction for Friday, February 13th, 2026:36.49% (+11.45%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Hokkaido Gas Co Ltd Analyses