Costco stock trades at premium valuation amid mixed analyst views

Several financial analysts looked at Costco shares in October 2026 and asked whether the stock was worth buying. The company's shares have grown six times in value over the past ten years, and its sales reached $297 billion in fiscal 2026. Customer loyalty is also very strong, with 93% of US and Canadian members renewing each year. However, the stock's price is high compared to its earnings, with a ratio of around 45. Analysts noted that the share price was about 16% below its highest point. One valuation model put the fair price at around $993. The stock had also fallen 6% in 2025, while the wider US market rose 17%.