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	param	t-stat
$ω$	0.0353	19.69
$α$	0.0681	42.92
$β$	0.9172	562.03
$γ$	0.2144	6.53

V-Lab

AT&T Inc AGARCH Volatility Analysis

Volatility Prediction for Tuesday, January 20th, 2026:18.93% (-0.04%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other AT&T Inc Analyses