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	param	t-stat
$ω$	0.0003	1.47
$α$	0.1342	7.45
$β$	0.5396	16.28
$γ$	-0.2790	-10.43
$δ$	3.0000	9.95

V-Lab

Vanguard S T TAX EX Bond ETF APARCH Volatility Analysis

Volatility Prediction for Wednesday, February 11th, 2026:1.42% (-0.04%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Vanguard S T TAX EX Bond ETF Analyses