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	param	t-stat
$ω$	0.9207	7.38
$α$	0.0719	8.83
$β$	0.8829	68.10
$γ_{1}$	0.0280	1.21
$γ_{2}$	-0.0080	-0.23
$γ_{3}$	-0.1009	-4.09
$γ_{4}$	0.1452	6.55
$γ_{5}$	-0.0943	-4.69
$γ_{6}$	0.0714	3.04
$γ_{7}$	-0.0659	-2.53
$γ_{8}$	0.0233	1.10

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AT&T Inc Zero Slope Spline-GARCH Volatility Analysis

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News Impact Curve

Volatility Forecast

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