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	param	t-stat
$ω$	0.0105	2.95
$α$	0.1541	30.58
$β$	0.9705	546.76
$γ$	-0.1324	-29.66

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

Volatility Prediction for Tuesday, February 17th, 2026:14.38% (-0.65%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Vanguard S&P Mid-Cap 400 ETF Analyses