Key Takeaways Costco's Q4 net sales rose 8% to $84.4B, driven by broad comparable sales growth.E-commerce comparable sales jumped 13.6$269.9B in sales, up 8.1% despite economic headwinds.Costco Wholesale Corporation (COST) reported a robust financial performance for its fourth quarter of fiscal 2025 with net sales reaching $84.4 billion, an 8$78.2 billion last year. This growth was supported by strong comparable sa ...