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	param	t-stat
$ω$	0.0262	20.34
$α$	0.0420	19.86
$β$	0.9359	557.10
$γ$	0.0239	5.87

V-Lab

AT&T Inc GJR-GARCH Volatility Analysis

Volatility Prediction for Tuesday, March 17th, 2026:26.35% (-0.76%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other AT&T Inc Analyses