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	param	t-stat
$ω$	-0.0010	-0.12
$α$	0.1531	13.64
$β$	0.8038	71.57
$γ$	0.6138	10.33

V-Lab

Vanguard S&P 500 ETF AGARCH Volatility Analysis

Volatility Prediction for Wednesday, February 11th, 2026:14.87% (-0.50%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Vanguard S&P 500 ETF Analyses