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	param	t-stat
$ω$	3.8152	5.24
$α$	0.0777	26.02
$β$	0.9819	270.26
$ν$	4.6229	9.41

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Jefferies Financial Group Inc GAS-GARCH Student T Volatility Analysis

Volatility Prediction for Friday, February 20th, 2026:49.64% (-2.59%)

Date Range:

Parameter Estimates

Other Jefferies Financial Group Inc Analyses