Nikkei Stock Average Volatility Index

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	param	t-stat
$ω$	0.5747	10.94
$α$	0.3762	18.01
$β$	0.6238	34.27
$γ$	-0.2036	-6.22
$δ$	1.2132	14.50

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Kowa Company Ltd APARCH Volatility Analysis

Volatility Prediction for Friday, February 13th, 2026:30.65% (+0.82%)

Date Range:

Parameter Estimates

News Impact Curve

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