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	param	t-stat
$ω$	0.0010	0.48
$α$	0.0194	0.00
$β$	0.4201	5.77
$γ$	-0.9979	-0.00
$δ$	3.0000	2.89

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Northern Trust Tax-Exemp ETF APARCH Volatility Analysis

Volatility Prediction for Friday, February 13th, 2026:2.35% (+0.39%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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