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	param	t-stat
$ω$	1.1166	12.05
$α$	0.1045	10.06
$β$	0.8460	51.60
$γ_{1}$	0.0002	1.45

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Hitachi Construction Machinery Co Ltd Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, February 16th, 2026:46.28% (-3.07%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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