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	param	t-stat
$ω$	1.0000	4.95
$α$	0.0898	4.26
$β$	0.8289	68.66
$γ$	-1.0000	-2.75
$δ$	1.1261	14.13

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CBOE IBM Volatility Index APARCH Volatility Analysis

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News Impact Curve

Volatility Forecast

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