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	param	t-stat
$ω$	1.1565	8.25
$α$	0.1262	7.35
$β$	0.8270	41.10
$γ_{1}$	0.0263	3.99
$γ_{2}$	-0.0347	-4.09

V-Lab

Vanguard S&P Mid-Cap 400 ETF Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Friday, February 13th, 2026:19.35% (+0.70%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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