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	param	t-stat
$ω$	0.0437	13.08
$α$	0.0429	16.82
$β$	0.9571	452.31
$γ$	0.3280	11.86
$δ$	1.4390	23.50

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Alexion Pharmaceuticals Inc APARCH Volatility Analysis

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Date Range:

Parameter Estimates

News Impact Curve

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