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	param	t-stat
$ω$	0.0190	11.19
$α$	0.1041	18.69
$β$	0.9895	1,158.71
$γ$	-0.0353	-9.20

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Costco Wholesale Corp EGARCH Volatility Analysis

Volatility Prediction for Monday, February 23rd, 2026:23.52% (-0.59%)

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Parameter Estimates

News Impact Curve

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Other Costco Wholesale Corp Analyses