Nikkei Stock Average Volatility Index

CBOE EFA ETF Volatility Index

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	param	t-stat
$ω$	3.5858	5.28
$α$	0.2693	3.87
$β$	0.2199	2.08
$γ_{1}$	1.4043	5.45
$γ_{2}$	-1.7748	-4.40
$γ_{3}$	0.6626	2.05
$γ_{4}$	-0.6268	-2.14
$γ_{5}$	0.6423	1.88
$γ_{6}$	-0.5451	-1.20
$γ_{7}$	0.2400	0.48
$γ_{8}$	0.2340	0.39

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Sigmaxyz Holdings Inc Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, February 16th, 2026:40.62% (-20.04%)

Date Range:

Parameter Estimates

News Impact Curve

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