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	param	t-stat
$ω$	1.4292	3.46
$α$	0.0856	0.63
$β$	0.4921	0.76
$γ_{1}$	4.0890	1.56

V-Lab

Northern Trust Tax-Exemp ETF Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Thursday, February 12th, 2026:1.66% (-0.02%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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