1 Incredible Reason to Buy Costco Stock Before September's Q4 Report

Costco reported robust June sales, growing 8% year-over-year to $26.4 billion, accelerating from May's 6.8% growth. This performance significantly outpaces competitors like Walmart, which saw 2.9% growth, and demonstrates broad strength across segments, including a 10.9% jump in international sales, despite a challenging economic environment. The retailer's consistent execution supports its premium valuation of 55.6 times earnings, highlighting its operational resilience.

Analysis

Costco has demonstrated significant operational momentum, with June's year-over-year sales growth accelerating to 8.0%, up from an already strong 6.8% in May. This top-line performance, resulting in $26.4 billion in monthly sales, indicates robust consumer demand despite a challenging economic environment characterized by weak consumer confidence. The company's growth is notably outpacing key competitor Walmart, which recently reported 2.9% sales growth, suggesting Costco is gaining market share. Growth drivers are broad-based, with a particular acceleration in international sales outside the U.S. and Canada, which surged 10.9% YoY compared to 6.6% in the prior month. While e-commerce remains a strong segment, its growth rate moderated slightly. This consistent execution supports the stock's premium valuation, which stands at a lofty 55.6 times earnings and 59.5 times free cash flow, reflecting high investor expectations ahead of its fourth-quarter fiscal 2025 earnings report.

Key Decisions for Investors

• Investors should consider the accelerating sales growth as a strong positive signal for the upcoming Q4 earnings, though the premium valuation at 55.6x P/E suggests much of this optimism is already priced in.
• The widening performance gap between Costco's 8% growth and Walmart's 2.9% highlights Costco's superior execution and market share gains, justifying a potential overweight position within the retail sector for growth-focused portfolios.
• Monitor the international sales segment's growth rate in subsequent reports, as its significant acceleration to 10.9% was a primary driver of June's outperformance and is key to sustaining momentum.
• Given the high valuation multiples, investors should be cautious of any potential deceleration in monthly sales figures, as this could trigger a significant price correction.