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	param	t-stat
$ω$	1.2473	8.18
$α$	0.0885	30.99
$β$	0.9819	392.44
$ν$	7.5289	5.42

V-Lab

State Street Health Care Select Sector SPDR ETF GAS-GARCH Student T Volatility Analysis

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News Impact Curve

Volatility Forecast

Parameter Estimates

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