Costco Stock: Can the Momentum Continue?

Costco reported strong fiscal third-quarter results, with revenue up 8% to $63.21 billion and adjusted EPS increasing 13% to $4.28, exceeding analyst expectations. Same-store sales rose 8%, driven by growth in the U.S., Canada, and other international markets, while e-commerce revenue increased 15.7%; membership fee revenue also climbed 10.4% to $1.24 billion. Despite these positive results and outperforming competitors, Costco's stock trades at a high forward P/E ratio of 57.5, raising concerns about valuation relative to its revenue growth and new store expansion rate.

Analysis

Costco Wholesale (COST) reported a robust fiscal third quarter, demonstrating continued strength in the retail sector despite tariff uncertainties. Quarterly revenue increased by 8% year-over-year to $63.21 billion, and adjusted earnings per share (EPS) rose 13% to $4.28, surpassing LSEG analyst consensus estimates of $63.19 billion in revenue and $4.24 EPS. This performance was underpinned by an 8% rise in adjusted same-store sales, with notable growth across the U.S. (7.9%), Canada (7.8%), and other international markets (8.5%). E-commerce also contributed significantly, with revenue up 15.7% on an adjusted basis. Key drivers included a 2.7% increase in average transaction worldwide (2.3% in the U.S.) and a 5.2% rise in global traffic (5.5% in the U.S.). Strong sales were observed in meat, produce, and double-digit growth in gold, jewelry, toys, housewares, and home furnishings. Membership fee revenue climbed 10.4% to $1.24 billion, benefiting from a prior fee hike, with paid households growing 6.8% to 79.6 million. Executive memberships, which constitute 73% of worldwide sales, grew 9%_to 37.6 million. While North American renewal rates stood at 92.7% and worldwide at 90.2%, both saw slight declines attributed to increased digital signups among younger consumers. Costco is actively mitigating tariff impacts through local sourcing and rerouting, alongside initiatives to enhance customer experience, such as checkout technology investments and a new "buy now, pay later" program. The company expanded by eight new locations in the quarter, with nine more planned for Q4, 80% of which are in high-traffic markets, potentially leading to some sales cannibalization but also easing congestion at existing stores. Despite this strong operational performance, which outpaces competitors like Target (comparable sales down 3.8%) and Walmart (U.S. same-store sales up 4.5%), Costco's stock trades at a high forward price-to-earnings (P/E) ratio of 57.5. This valuation is a point of concern given revenue growth in the low teens and new location growth under 3% for the fiscal year, indicating market maturity.

Key Decisions for Investors

• Investors should acknowledge Costco's strong operational execution and market share gains, but weigh this against the significantly elevated forward P/E ratio of 57.5 before initiating or adding to positions.
• Monitor key metrics such as the sustainability of high single-digit same-store sales growth, membership renewal rates particularly with ongoing digital adoption, and the actual impact of new store openings on cannibalization versus overall sales lift.
• Consider the current valuation in the context of projected revenue growth (low teens) and physical expansion rates (sub-3% new locations annually), as these may temper future stock price appreciation despite strong fundamental performance.
• Evaluate Costco's proven ability to navigate macroeconomic challenges like tariffs and its consistent outperformance of retail peers as potential justifications for its premium valuation, though caution is warranted given the current multiple.