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	param	t-stat
$ω$	2.8778	4.45
$α$	0.0704	33.08
$β$	0.9908	480.04
$ν$	5.7140	8.35

V-Lab

AT&T Inc GAS-GARCH Student T Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:27.13% (-1.46%)

Date Range:

Parameter Estimates

Other AT&T Inc Analyses