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	param	t-stat
$ω$	0.0202	9.24
$α$	0.0245	10.85
$β$	0.9537	387.06
$γ$	0.0370	9.64

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Costco Wholesale Corp GJR-GARCH Volatility Analysis

Volatility Prediction for Friday, February 20th, 2026:22.29% (-0.16%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Costco Wholesale Corp Analyses