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	param	t-stat
$ω$	1.3593	6.57
$α$	0.0923	41.32
$β$	0.9891	556.29
$ν$	6.7488	8.98

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State Street SPDR S&P 500 ETF Trust GAS-GARCH Student T Volatility Analysis

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News Impact Curve

Volatility Forecast

Parameter Estimates

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