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	param	t-stat
$ω$	0.9409	7.59
$α$	0.0715	8.84
$β$	0.8842	69.04
$γ_{1}$	0.0320	1.39
$γ_{2}$	-0.0139	-0.40
$γ_{3}$	-0.0974	-3.93
$γ_{4}$	0.1428	6.38
$γ_{5}$	-0.0924	-4.57
$γ_{6}$	0.0694	2.96
$γ_{7}$	-0.0643	-2.48
$γ_{8}$	0.0226	1.07

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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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