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	param	t-stat
$ω$	0.9305	7.56
$α$	0.0740	8.97
$β$	0.8785	65.36
$γ_{1}$	0.0292	1.26
$γ_{2}$	-0.0063	-0.18
$γ_{3}$	-0.1083	-4.41
$γ_{4}$	0.1534	7.00
$γ_{5}$	-0.1007	-4.86
$γ_{6}$	0.0727	2.65
$γ_{7}$	-0.0530	-1.26
$γ_{8}$	-0.0218	-0.29

V-Lab

AT&T Inc Spline-GARCH Volatility Analysis

Volatility Prediction for Thursday, February 26th, 2026:25.15% (+0.07%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other AT&T Inc Analyses