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	param	t-stat
$ω$	0.0323	23.64
$α$	0.0682	1.48
$β$	0.9119	418.11
$γ$	1.0000	0.98
$δ$	1.2406	17.10

V-Lab

State Street SPDR S&P 400 Mid Cap Growth ETF APARCH Volatility Analysis

Volatility Prediction for Monday, February 9th, 2026:14.53% (-0.67%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other State Street SPDR S&P 400 Mid Cap Growth ETF Analyses