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	param	t-stat
$ω$	1.0315	3.31
$α$	0.2487	3.59
$β$	0.2986	1.95
$γ_{1}$	1.5703	0.38
$γ_{2}$	0.3101	0.05
$γ_{3}$	-6.8860	-1.70
$γ_{4}$	7.9535	3.13

V-Lab

AB Tax-Aware Long Muni ETF Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Friday, February 13th, 2026:3.75% (+0.72%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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