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	param	t-stat
$ω$	0.2770	15.87
$α$	0.0652	9.96
$β$	0.8956	191.33
$γ$	0.0463	4.36

V-Lab

ACI Worldwide Inc GJR-GARCH Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:54.74% (-2.34%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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