Analysis indicates that Costco, with its robust membership-based business model and continuously growing operational performance, is expected to continue outperforming the S&P 500 index in the coming year. The company has beaten the market in 16 out of 25 years between 2000 and 2025, and its total returns over the past five and three years have both exceeded the S&P 500. In July 2026, Costco's net sales reached $23.12 billion, a year-over-year increase of 10.7%. Although the current stock price of approximately $950 suggests a high valuation, its earnings stream has demonstrated resilience across different economic cycles.