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	param	t-stat
$ω$	0.0264	20.29
$α$	0.0419	19.74
$β$	0.9356	554.94
$γ$	0.0244	5.96

V-Lab

AT&T Inc GJR-GARCH Volatility Analysis

Volatility Prediction for Monday, February 9th, 2026:26.61% (-0.63%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other AT&T Inc Analyses