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	param	t-stat
$ω$	3.6859	16.23
$α$	0.1534	12.24
$β$	0.3373	11.69

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Amphastar Pharmaceuticals Inc GARCH Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:45.04% (+0.96%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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