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	param	t-stat
$ω$	1.3226	5.93
$α$	0.0799	1.57
$β$	0.5525	2.30
$γ_{1}$	-0.9314	-1.38
$γ_{2}$	2.7124	2.55
$γ_{3}$	-3.7140	-3.68
$γ_{4}$	5.5053	3.13

V-Lab

Hualan Biological Vaccine Inc Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, February 9th, 2026:95.70% (-0.31%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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