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	param	t-stat
$ω$	0.8495	7.47
$α$	0.0578	7.43
$β$	0.8979	58.81
$γ_{1}$	-0.0071	-0.23
$γ_{2}$	0.0837	1.78
$γ_{3}$	-0.1825	-5.54
$γ_{4}$	0.1803	6.19
$γ_{5}$	-0.1349	-4.08
$γ_{6}$	0.0953	2.35
$γ_{7}$	-0.0343	-0.81
$γ_{8}$	-0.0055	-0.14
$γ_{9}$	0.0054	0.20

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Norfolk Southern Corp Zero Slope Spline-GARCH Volatility Analysis

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News Impact Curve

Volatility Forecast

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