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	param	t-stat
$ω$	0.0344	37.27
$α$	0.0950	34.00
$β$	0.8996	336.19
$γ$	0.9640	24.74
$δ$	0.9298	38.23

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State Street SPDR S&P 500 ETF Trust APARCH Volatility Analysis

Volatility Prediction for Monday, February 9th, 2026:15.05% (-1.01%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other State Street SPDR S&P 500 ETF Trust Analyses