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	param	t-stat
$ω$	0.9324	7.55
$α$	0.0734	8.96
$β$	0.8801	66.29
$γ_{1}$	0.0298	1.28
$γ_{2}$	-0.0076	-0.22
$γ_{3}$	-0.1069	-4.34
$γ_{4}$	0.1523	6.92
$γ_{5}$	-0.0996	-4.81
$γ_{6}$	0.0715	2.63
$γ_{7}$	-0.0528	-1.26
$γ_{8}$	-0.0208	-0.27

V-Lab

AT&T Inc Spline-GARCH Volatility Analysis

Volatility Prediction for Tuesday, March 17th, 2026:24.63% (-1.08%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other AT&T Inc Analyses