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	param	t-stat
$ω$	0.0251	20.27
$α$	0.0410	19.64
$β$	0.9374	565.40
$γ$	0.0233	5.82

V-Lab

AT&T Inc GJR-GARCH Volatility Analysis

Volatility Prediction for Thursday, January 15th, 2026:19.00% (+0.05%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other AT&T Inc Analyses