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	param	t-stat
$ω$	1.8005	6.65
$α$	0.0900	3.30
$β$	0.6147	5.80
$γ_{1}$	1.3944	3.71
$γ_{2}$	-2.0884	-3.74
$γ_{3}$	1.0131	2.48
$γ_{4}$	-0.3218	-0.81
$γ_{5}$	0.1068	0.28
$γ_{6}$	-0.4623	-1.34
$γ_{7}$	0.8774	2.43
$γ_{8}$	-1.2627	-2.86
$γ_{9}$	1.7594	2.52
$γ_{10}$	-1.5618	-2.19

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Ultragenyx Pharmaceutical Inc Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:98.50% (+23.50%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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