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	param	t-stat
$ω$	2.0403	5.84
$α$	0.0943	3.53
$β$	0.7850	12.17
$γ_{1}$	1.3284	4.76
$γ_{2}$	-2.3633	-5.48
$γ_{3}$	1.9841	5.46
$γ_{4}$	-1.4043	-2.73
$γ_{5}$	0.2961	0.55
$γ_{6}$	0.4320	1.01
$γ_{7}$	-0.3341	-1.09

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WebMD Health Corp Zero Slope Spline-GARCH Volatility Analysis

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Date Range:

Parameter Estimates

News Impact Curve

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