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	param	t-stat
$ω$	0.7397	3.35
$α$	0.0608	8.01
$β$	0.9040	78.26
$γ_{1}$	-0.0034	-0.05
$γ_{2}$	0.0383	0.37
$γ_{3}$	-0.0550	-0.98
$γ_{4}$	-0.0241	-0.53
$γ_{5}$	0.1394	3.23
$γ_{6}$	-0.2232	-4.98
$γ_{7}$	0.2624	4.78
$γ_{8}$	-0.2411	-3.77
$γ_{9}$	0.1593	2.76
$γ_{10}$	-0.0642	-1.58

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Howmet Aerospace Inc Zero Slope Spline-GARCH Volatility Analysis

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Volatility Forecast

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