Costco Wholesale Corporation COST is likely to register an increase in the top line when it reports first-quarter fiscal 2024 results on Dec 14 after the closing bell. However, it is essential to acknowledge the presence of certain headwinds, including underlying inflationary pressures and a high interest rate environment, which may pose challenges. Additionally, margins remain a critical area to monitor, with potential concerns stemming from any deleverage in the SG&A rate, higher labor and occupancy costs, and increased marketing and other store-related expenses.