Costco Wholesale (COST) is set to report its fiscal fourth-quarter 2025 earnings on Sept. 25 after the market closes. Many investors are focused on whether the company can uphold its membership model’s strength, manage margin pressures in the current retail environment, and continue pushing forward in e-commerce — all while navigating tariffs, supply-chain volatility, and changing consumer habits. Meanwhile, Costco’s August sales report posted on Sept. 4 was met positively by investors, triggering a multi ...