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	param	t-stat
$ω$	1.1342	6.20
$α$	0.0859	8.25
$β$	0.8282	37.02
$γ_{1}$	-0.0613	-1.78
$γ_{2}$	0.1454	2.93
$γ_{3}$	-0.2011	-6.17
$γ_{4}$	0.2074	6.10
$γ_{5}$	-0.1411	-3.68
$γ_{6}$	0.0889	2.52
$γ_{7}$	-0.0611	-1.67
$γ_{8}$	0.0371	0.87
$γ_{9}$	0.0203	0.36

V-Lab

Amgen Inc Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, February 23rd, 2026:33.88% (-1.37%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Amgen Inc Analyses