Nikkei Stock Average Volatility Index

CBOE EFA ETF Volatility Index

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	param	t-stat
$ω$	1.3490	3.10
$α$	0.1470	4.74
$β$	0.7596	17.94
$γ_{1}$	0.2667	0.52
$γ_{2}$	-0.0266	-0.04
$γ_{3}$	-1.1476	-2.36
$γ_{4}$	2.4530	5.62
$γ_{5}$	-2.7974	-7.19
$γ_{6}$	1.8365	3.64
$γ_{7}$	-0.9861	-1.35
$γ_{8}$	0.9210	1.28
$γ_{9}$	-1.7827	-1.87

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Arigatou Services Co Ltd Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, February 16th, 2026:13.01% (+1.80%)

Date Range:

Parameter Estimates

News Impact Curve

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