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	param	t-stat
$ω$	0.9259	7.63
$α$	0.0741	8.82
$β$	0.8772	64.55
$γ_{1}$	0.0272	1.18
$γ_{2}$	-0.0038	-0.11
$γ_{3}$	-0.1079	-4.43
$γ_{4}$	0.1514	6.99
$γ_{5}$	-0.1002	-5.01
$γ_{6}$	0.0775	3.21
$γ_{7}$	-0.0682	-2.48
$γ_{8}$	0.0220	0.97

V-Lab

AT&T Inc Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, February 9th, 2026:30.58% (-1.27%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other AT&T Inc Analyses