Costco(US:COST) The Motley Fool·2026-03-21 08:15Core Viewpoint - Costco is facing challenges due to recent tariffs, which have led to a lawsuit from a customer seeking refunds, despite the company not fully passing on the costs to consumers [1][9]. Company Performance - Costco has consistently reported solid results since its IPO in 1985, even during economic downturns, with revenue growth every year except 2009 [3]. - The stock has yielded returns of almost 3,200% since 2000, significantly outperforming the S&P 500 [4]. - For the first half of fiscal 2026, Costco reported revenue of $137 billion, a 9% year-over-year increase, and a profit of $4 billion, reflecting a 13% growth [7]. Valuation Concerns - Costco's current P/E ratio stands at 51, which, while lower than last year's 60, is comparable to levels seen during the 2000 bull market [6]. - The high valuation may not be justified given the uncertainty surrounding tariff refunds and the potential impact on profits [9][11]. Market Sentiment - Despite the lawsuit and tariff-related uncertainties, Costco's long-term growth potential remains intact, but investors may reconsider the stock's valuation in the near term [10][11].