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	param	t-stat
$ω$	0.0654	20.79
$α$	0.0877	22.06
$β$	0.8534	286.36
$γ$	0.0857	9.12

V-Lab

Arthur J Gallagher & Co GJR-GARCH Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:60.04% (-4.17%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Arthur J Gallagher & Co Analyses