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	param	t-stat
$ω$	0.0159	10.48
$α$	0.0389	16.59
$β$	0.9578	359.92

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Costco Wholesale Corp GARCH Volatility Analysis

Volatility Prediction for Monday, February 23rd, 2026:22.45% (-0.38%)

Date Range:

Parameter Estimates

News Impact Curve

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