Walmart's Premium Valuation Rests on Higher-Margin Growth

Walmart's share price asks investors to look beyond a low-margin retail business. The company's stronger profit engines are advertising, membership and marketplace services, which can grow without adding the same inventory and store costs as traditional sales.

The latest results support that strategy. In fiscal second-quarter 2027, total revenue rose 7.3% to $177.8 billion. Global e-commerce sales increased 23%, Walmart U.S. advertising rose 38% and global membership-fee revenue grew 17%. Walmart also said adjusted operating income increased 17.4% in constant currency, although tariff refunds contributed to the quarter and management reinvested part of that benefit in lower prices.

That mix helps explain why Walmart can command a premium to slower-growing traditional retailers. It does not make comparisons with Amazon simple. Amazon's second-quarter 2026 results included 37% growth at AWS and $16.6 billion of AWS operating income, so its consolidated margin and valuation reflect a large cloud business that Walmart does not have.

The right test for Walmart is internal: can profit keep growing faster than sales after temporary benefits fade? Management raised full-year guidance and cited a more durable mix of revenue and profit. Store-fulfilled delivery rose 40%, while marketplace net sales grew more than 50%, increasing the scale available for advertising and membership.

Walmart remains a defensive retailer with expanding digital economics, but a premium valuation leaves less tolerance for execution misses. The next report should be judged on adjusted operating-income growth excluding tariff effects, advertising momentum and whether e-commerce continues improving profitability. If those businesses slow, investors would be paying a technology-like multiple for grocery-led growth. If they keep compounding, Walmart's margin profile can continue moving beyond that of a conventional big-box chain.