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	param	t-stat
$ω$	-0.0045	-1.05
$α$	0.1081	32.50
$β$	0.8719	298.79
$γ$	0.6147	13.43

V-Lab

State Street SPDR Portfolio S&P 500 Growth ETF AGARCH Volatility Analysis

Volatility Prediction for Wednesday, February 11th, 2026:20.83% (-0.80%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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