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	param	t-stat
$ω$	0.0363	19.35
$α$	0.0694	43.25
$β$	0.9155	551.87
$γ$	0.2259	6.95

V-Lab

AT&T Inc AGARCH Volatility Analysis

Volatility Prediction for Thursday, February 19th, 2026:27.31% (+0.15%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other AT&T Inc Analyses