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	param	t-stat
$ω$	-0.0204	-5.84
$α$	0.0949	35.08
$β$	0.8751	283.77
$γ$	0.8530	31.18

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Vanguard S&P Mid-Cap 400 ETF AGARCH Volatility Analysis

Volatility Prediction for Friday, February 13th, 2026:18.06% (+2.95%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Vanguard S&P Mid-Cap 400 ETF Analyses