A Costco store sign is in Brampton, Ontario. The chain of membership-only warehouse club retail stores holds its Q4 2025 earnings call on September 25, 2025. (Photo by Mike Campbell/NurPhoto via Getty Images)NurPhoto via Getty ImagesCostco (NASDAQ: COST) completed fiscal 2025 (August fiscal year) with a solid quarter, slightly surpassing expectations and highlighting the strengths that distinguish it. Its Q4 earnings of $5.87 per share, a rise of 11% year-over-year, on $86.2 billion in revenue, an increase ...