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	param	t-stat
$ω$	0.9692	4.03
$α$	0.0982	8.37
$β$	0.8473	46.64
$γ_{1}$	-0.0672	-1.97
$γ_{2}$	0.1643	2.65
$γ_{3}$	-0.2177	-3.24
$γ_{4}$	0.2394	3.62
$γ_{5}$	-0.1807	-3.69
$γ_{6}$	0.0426	1.19
$γ_{7}$	0.0815	2.40
$γ_{8}$	-0.0961	-2.82
$γ_{9}$	0.0341	1.21

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Jefferies Financial Group Inc Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Friday, February 20th, 2026:45.94% (-2.48%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Jefferies Financial Group Inc Analyses