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	param	t-stat
$ω$	0.8826	5.69
$α$	0.1569	6.42
$β$	0.6323	13.33
$γ_{1}$	-0.0707	-0.54
$γ_{2}$	0.2490	1.30
$γ_{3}$	-0.4277	-4.06
$γ_{4}$	0.2999	2.99
$γ_{5}$	0.1360	1.16
$γ_{6}$	-0.4812	-2.94
$γ_{7}$	0.5394	3.08
$γ_{8}$	-0.3568	-2.63
$γ_{9}$	0.1457	1.69

V-Lab

ACI Worldwide Inc Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:39.02% (-5.22%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other ACI Worldwide Inc Analyses