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	param	t-stat
$ω$	1.0451	7.69
$α$	0.0802	5.02
$β$	0.8529	32.86
$γ_{1}$	-0.0085	-0.13
$γ_{2}$	0.0256	0.23
$γ_{3}$	-0.0232	-0.29
$γ_{4}$	-0.0271	-0.53
$γ_{5}$	0.1282	2.35
$γ_{6}$	-0.2171	-3.48
$γ_{7}$	0.1980	3.97
$γ_{8}$	-0.0647	-1.27
$γ_{9}$	-0.0466	-0.68
$γ_{10}$	0.0432	0.84

V-Lab

Harley-Davidson Inc Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, February 23rd, 2026:38.37% (-1.18%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Harley-Davidson Inc Analyses