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	param	t-stat
$ω$	1.1838	4.96
$α$	0.0848	3.17
$β$	0.6576	6.30
$γ_{1}$	0.4658	2.54
$γ_{2}$	-0.8624	-3.04
$γ_{3}$	0.5669	2.71
$γ_{4}$	-0.1992	-1.17
$γ_{5}$	0.0810	0.49
$γ_{6}$	-0.0300	-0.15
$γ_{7}$	-0.1239	-0.66
$γ_{8}$	0.1597	0.89
$γ_{9}$	-0.0255	-0.12
$γ_{10}$	-0.1575	-0.36

V-Lab

DexCom Inc Spline-GARCH Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:54.03% (+9.74%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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