Nikkei Stock Average Volatility Index

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	param	t-stat
$ω$	0.3331	13.97
$α$	0.1549	25.71
$β$	0.7433	80.78
$γ$	0.2186	10.41
$δ$	1.4885	19.33

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Sompo Holdings Inc APARCH Volatility Analysis

Volatility Prediction for Monday, February 9th, 2026:28.95% (+0.59%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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