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	param	t-stat
$ω$	0.7428	11.39
$α$	0.2768	18.73
$β$	0.6282	19.09
$γ$	0.0803	6.50

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Amphastar Pharmaceuticals Inc EGARCH Volatility Analysis

Volatility Prediction for Friday, February 20th, 2026:37.06% (-2.28%)

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News Impact Curve

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