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	param	t-stat
$ω$	0.0202	9.19
$α$	0.0244	10.83
$β$	0.9538	388.04
$γ$	0.0372	9.68

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Costco Wholesale Corp GJR-GARCH Volatility Analysis

Volatility Prediction for Friday, February 13th, 2026:22.07% (+0.23%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Costco Wholesale Corp Analyses