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	param	t-stat
$ω$	0.0269	20.26
$α$	0.0672	36.74
$β$	0.9328	448.26
$γ$	0.6630	24.36
$δ$	0.7272	26.14

V-Lab

Automatic Data Processing Inc APARCH Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:36.88% (-1.96%)

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News Impact Curve

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