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	param	t-stat
$ω$	0.0391	19.39
$α$	0.0770	43.65
$β$	0.9166	540.79

V-Lab

American Express Co GARCH Volatility Analysis

Volatility Prediction for Monday, February 23rd, 2026:26.30% (-0.56%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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