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	param	t-stat
$ω$	0.0084	1.19
$α$	0.1149	11.35
$β$	0.9669	287.08
$γ$	-0.1569	-24.85

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State Street SPDR Portfolio S&P 500 ETF EGARCH Volatility Analysis

Volatility Prediction for Thursday, February 12th, 2026:13.89% (-0.49%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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