Which of These Discount Retailers Is the Better Investment Choice?

Walmart and Costco are strategically positioned to benefit from rising grocery prices and inflation due to their distinct business models. Walmart leverages its immense purchasing power to maintain competitive pricing, driving sales and delivering 6% revenue growth in FY24, although its recent Q2 adjusted EPS slightly missed estimates. Conversely, Costco's membership-driven model provides a stable income stream, with fees accounting for approximately 65% of net income and a recent 10.4% increase in Q3 2025 membership income. While both have historically thrived in inflationary environments, Costco's predictable membership revenue may offer a more resilient investment profile amidst ongoing tariff uncertainties.

Analysis

Both Walmart (WMT) and Costco (COST) are strategically positioned to benefit from a potential rise in grocery prices fueled by tariffs, though they leverage distinct business models. Walmart utilizes its massive scale and purchasing power to suppress price increases from suppliers, as evidenced by its ability to hold grocery inflation to just 3% during the 2022-2023 period, compared to over 7.5% at competitors. This strategy supported its fiscal 2024 results, which saw a 6% rise in constant currency revenue to $648 billion. However, a recent second-quarter report presented a mixed picture, with revenue of $177.4 billion beating estimates but adjusted EPS of $0.68 falling short of the $0.73 consensus, triggering a 5% stock decline. In contrast, Costco's membership-driven model provides a more stable and predictable profit stream, with membership fees accounting for approximately 65% of net income. This model has proven resilient, with membership income growing 10.4% to over $1.2 billion in its most recent quarter, even after a fee increase. Forward-looking sentiment appears stronger for Costco, with analysts forecasting 10% EPS growth for its upcoming quarter, suggesting its business model may offer greater insulation from margin volatility amid trade policy uncertainty.

Key Decisions for Investors

• Given Costco's predictable, high-margin membership revenue and strong analyst expectations for 10% EPS growth, it presents a defensively positioned investment to capitalize on consumer shifts toward value retailers.
• Investors in Walmart should monitor for margin recovery in subsequent quarters to determine if the recent EPS miss was a one-off event or indicative of sustained pressure, weighing this against its consistent top-line growth.
• The primary external catalyst remains the uncertainty surrounding potential tariffs on food imports; therefore, closely tracking U.S. trade policy is critical as it will directly impact input costs and the competitive landscape for both retailers.
• Considering Walmart's recent stock price drop against Costco's steady performance, a relative value assessment is warranted, as Costco's model currently appears to offer a less volatile profile in the face of macroeconomic uncertainty.