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	param	t-stat
$ω$	0.9299	7.57
$α$	0.0744	8.97
$β$	0.8778	64.97
$γ_{1}$	0.0289	1.24
$γ_{2}$	-0.0057	-0.16
$γ_{3}$	-0.1090	-4.44
$γ_{4}$	0.1541	7.04
$γ_{5}$	-0.1014	-4.88
$γ_{6}$	0.0734	2.66
$γ_{7}$	-0.0534	-1.27
$γ_{8}$	-0.0212	-0.28

V-Lab

AT&T Inc Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, February 9th, 2026:29.06% (-1.32%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other AT&T Inc Analyses