Nikkei Stock Average Volatility Index

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	param	t-stat
$ω$	0.1891	15.80
$α$	0.1290	32.89
$β$	0.8377	173.08
$γ$	0.1904	11.50
$δ$	1.5849	32.71

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Shimizu Corp APARCH Volatility Analysis

Volatility Prediction for Friday, February 20th, 2026:45.56% (-2.23%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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