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	param	t-stat
$ω$	-0.0155	-3.84
$α$	0.0738	53.74
$β$	0.9181	684.63
$γ$	0.9502	28.08

V-Lab

American Express Co AGARCH Volatility Analysis

Volatility Prediction for Monday, February 23rd, 2026:28.26% (-1.25%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other American Express Co Analyses