Nikkei Stock Average Volatility Index

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	param	t-stat
$ω$	0.9127	9.06
$α$	0.0423	7.19
$β$	0.9486	131.16
$γ_{1}$	-0.0002	-1.08

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Advantest Corp Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Friday, February 13th, 2026:68.19% (-0.84%)

Date Range:

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