Why Costco's (COST) AI-Grade Multiple is a Warning Signal for Investors

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2025.12.19 00:06
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Costco Wholesale (COST) is a high-quality business with strong brand strength and loyal membership. However, the concern lies in its stock valuation, which is seen as overvalued despite being a conservative and widely owned stock. This overvaluation is a warning signal for investors, indicating market excess beyond just tech stocks. The key question is how long this overvaluation can persist as we approach 2026.