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	param	t-stat
$ω$	1.2210	8.36
$α$	0.0535	5.61
$β$	0.9120	54.83
$γ_{1}$	0.0287	0.98
$γ_{2}$	0.0010	0.02
$γ_{3}$	-0.1219	-3.34
$γ_{4}$	0.1720	5.04
$γ_{5}$	-0.1376	-3.52
$γ_{6}$	0.1306	2.79
$γ_{7}$	-0.1209	-2.26
$γ_{8}$	0.0706	1.39
$γ_{9}$	-0.0341	-0.96

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Wal-Mart Stores Inc Zero Slope Spline-GARCH Volatility Analysis

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News Impact Curve

Volatility Forecast

Parameter Estimates

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