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	param	t-stat
$ω$	1.2273	8.43
$α$	0.0529	5.51
$β$	0.9131	53.27
$γ_{1}$	0.0255	0.86
$γ_{2}$	0.0113	0.24
$γ_{3}$	-0.1381	-3.70
$γ_{4}$	0.1896	5.40
$γ_{5}$	-0.1518	-3.80
$γ_{6}$	0.1376	2.91
$γ_{7}$	-0.1158	-2.14
$γ_{8}$	0.0492	0.85
$γ_{9}$	0.0175	0.19

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Wal-Mart Stores Inc Spline-GARCH Volatility Analysis

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News Impact Curve

Volatility Forecast

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