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	param	t-stat
$ω$	0.9066	7.26
$α$	0.0724	8.78
$β$	0.8811	66.59
$γ_{1}$	0.0243	1.02
$γ_{2}$	-0.0003	-0.01
$γ_{3}$	-0.1086	-4.39
$γ_{4}$	0.1516	6.90
$γ_{5}$	-0.1008	-4.97
$γ_{6}$	0.0789	3.20
$γ_{7}$	-0.0705	-2.49
$γ_{8}$	0.0245	1.04

V-Lab

AT&T Inc Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Wednesday, February 4th, 2026:34.05% (-0.50%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other AT&T Inc Analyses