William Blair analyst Phillip Blee has maintained their bullish stance on COST stock, giving a Buy rating on August 4.
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Phillip Blee has given his Buy rating due to a combination of factors that highlight Costco’s strong performance and potential for continued growth. The company reported a significant increase in sales for July 2025, with a year-over-year growth of 8.5%, driven by a 6.4% rise in comparable sales and the addition of 26 new warehouses. This growth was further supported by a robust 15.1% increase in e-commerce sales, indicating a solid digital presence.
Additionally, the reacceleration in adjusted comparable sales after a period of softer results suggests a positive outlook for Costco’s shares. Despite concerns about the company’s elevated valuation, the consistent demand and stability offered by Costco make it an attractive investment, especially in an uncertain macroeconomic environment. Investors appear willing to pay a premium for the reliability that Costco provides, positioning the company well for future success.
In another report released on August 4, Bernstein also assigned a Buy rating to the stock with a $1,137.00 price target.

