Walmart's E-Commerce Margin Inflection Justifies a Higher Multiple

Walmart's operating margin expansion is not a single-driver story. Three separate margin engines are now compounding. Each of them, in isolation, would justify a small multiple expansion. Together, they explain why the stock has rerated 35% over twelve months while many retail peers have stagnated.

First, e-commerce profitability. The transition from negative to positive operating margin in the digital channel is the classic operating leverage story. Walmart's fulfilment network, which absorbed $20 billion plus of capex over the prior six years, is now utilised at rates that drive incremental volume to flow through at high contribution margins. The marginal e-commerce dollar generates approximately 6-8% operating margin once fixed fulfilment costs are absorbed. That margin profile is similar to what Amazon's North America retail segment took roughly a decade longer to achieve.

Second, advertising. Walmart Connect (the retail media business) is now generating approximately $4.4 billion of annual revenue at margins that finance investors estimate at 70-80% contribution margin. The business has more than doubled in two years. At current trajectory, Walmart Connect will exceed $7 billion of revenue by fiscal 2028, contributing $5 billion plus of operating income at maturity. That is approximately one-sixth of total operating income from a business segment that did not exist five years ago.

Third, membership. Walmart Plus subscribers have grown to an estimated 35 million households. Each subscription generates approximately $98 of revenue annually with extremely high contribution margin. The membership economics, layered on top of the product margin, mirror Costco's playbook. The company that solves the membership question alongside the retail margin question commands a premium multiple. Costco trades at 49x trailing earnings and yields 0.5%. Walmart at 47x is no longer obviously expensive.

Walmart generated $14.9 billion of free cash flow in fiscal 2026, up from $12.7 billion in fiscal 2025 and $7.6 billion in fiscal 2023. The two-year free cash flow growth is 96%. That is the cleanest signal that the operating leverage is real, not an accounting artefact.

Capital expenditure has actually expanded over this period (from $20.6 billion in fiscal 2024 to $26.6 billion in fiscal 2026, a 29% increase). Free cash flow growing while capex grows is the definition of operational leverage. By comparison, Target generated $4.5 billion of free cash flow in 2025 against $3 billion of capex; the absolute scale and the growth rate at Walmart dominate.

Management has used the cash flow conservatively. Net debt has declined from $40 billion in 2022 to approximately $35 billion now. Buybacks averaged $4.5 billion annually over the last three years, a deliberate restraint relative to the cash generation. Dividend coverage sits comfortably above 2x. The conservative capital allocation is itself a positive: Walmart is choosing optionality on M&A and capacity over share count reduction. That patience, combined with a 1.0% dividend yield and a 2-3% buyback cadence, points to a 4-5% total shareholder yield against a 6-8% earnings growth profile. Total return mathematics support a 12-13% IRR at current prices.