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	param	t-stat
$ω$	0.0493	12.80
$α$	0.0686	19.74
$β$	0.9172	337.94
$γ$	0.2462	16.98
$δ$	1.7621	22.15

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Westamerica Bancorporation APARCH Volatility Analysis

Volatility Prediction for Wednesday, February 11th, 2026:21.05% (-0.63%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Westamerica Bancorporation Analyses