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	param	t-stat
$ω$	1.5276	13.95
$α$	0.1389	6.45
$β$	0.7675	24.71
$γ_{1}$	0.0046	3.29
$γ_{2}$	-0.0060	-1.90

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Yamagata Bank Ltd Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, February 16th, 2026:53.18% (-0.20%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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