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	param	t-stat
$ω$	0.0396	17.68
$α$	0.0136	5.02
$β$	0.8746	272.71
$γ$	0.1700	20.33

V-Lab

Vanguard S&P Mid-Cap 400 ETF GJR-GARCH Volatility Analysis

Volatility Prediction for Friday, February 13th, 2026:15.41% (+3.03%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Vanguard S&P Mid-Cap 400 ETF Analyses