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	param	t-stat
$ω$	0.0499	7.94
$α$	0.0392	9.72
$β$	0.9493	498.31
$γ$	-0.0313	-1.22
$δ$	2.3586	20.32

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Showa Chemical Ind Co Ltd APARCH Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:21.92% (+0.21%)

Date Range:

Parameter Estimates

News Impact Curve

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