The Order the Store FillsWide moat

Walmart (WMT) — moat facet

The most consequential decision of the decade was not to build Amazon's network but to use the one Walmart already had.

The most consequential decision Walmart made in the last decade was not to build Amazon's network. It was to use the one it had.

Walmart growth rates, June 2026 quarterMarketplace sales+52%Store-fulfilled delivery+43%Global advertising+38%Global eCommerce+23%Net sales+5.9%Every line that is not merchandise is growing several times faster than merchandise.
The store-fulfilled parcel grows at nearly twice the rate of eCommerce as a whole, which is the estate doing a job it was never designed for at a cost Walmart already paid.

When a customer in Ohio orders online, the order is most often assembled by an employee walking the aisles of the store four miles away and handed over in the car park or driven to the door. Walmart calls this store-fulfilled pickup and delivery, and it is what the company credits for the growth in its digital business — eCommerce contributed approximately 4.3 percentage points to Walmart U.S. comparable sales in fiscal 2026, against 2.9 points the year before1. In the June 2026 quarter store-fulfilled delivery grew about 43%, and roughly 37% of those orders were expedited — delivered in under three hours2.

The economics of this are genuinely different from a warehouse model. The inventory was already bought and already positioned. The building was already lit and staffed. The incremental cost of the order is the picker's time and the last four miles, and the last four miles is the cheapest part of any delivery network because there is no line haul at all. It is the reason Walmart can offer three-hour delivery on tens of thousands of items in towns where no dedicated fulfilment centre would ever be built.

It also answers a question that dogged physical retailers for twenty years: what are the stores for, once shopping moves online? Walmart's answer is that a store is a warehouse with a car park, and it was always a warehouse — the retailing was the part that could be moved.

The shelf is what limits it. A store holds one of most things, not forty, so a store-fulfilled order can substitute or short an item in a way a warehouse would not, and assortment beyond what the building stocks still has to come from somewhere else.

Grade it on the share of eCommerce fulfilled from stores rather than from dedicated centres. Walmart does not publish it directly, so the proxy is the growth rate of store-fulfilled delivery against total eCommerce growth: 43% against 24% in the June quarter34. While the first exceeds the second, the asset is doing the work.

Moat trajectory: Widening

This is the fastest-improving part of the company. Store-fulfilled delivery growth is running well ahead of total eCommerce growth, expedited delivery is becoming the default rather than the premium, and management now names eCommerce economics as a driver of margin expansion rather than a drag on it.

The number that tests this moat
Reported
Store-fulfilled delivery growth
~43% in the June 2026 quarter

Against total eCommerce growth of 23%, which says the estate is doing the work. Roughly 37% of store-fulfilled orders arrive within three hours. If store-fulfilled growth falls below total eCommerce growth, Walmart is building a second network at full price.

Source: Walmart second-quarter fiscal 2027 results (August 20, 2026) ↗
⚠ Threats to the moat
⚠ THREAT 01
A Store Holds One of Everything
Cheap because the inventory is already there, and limited for exactly the same reason.
References
  1. ReportedWalmart calls this store-fulfilled pickup and delivery, and it is what the company credits for the growth in its digital business — eCommerce contributed approximately 4.3 percentage points to Walmart U.S. comparable sales in fiscal 2026, against 2.9 points the year before.
    Walmart Form 10-K, fiscal year ended January 31, 2026 - Item 7 MD&A (Walmart U.S. comparable sales +4.3% with eCommerce contributing approximately 4.3 percentage points; return on assets 8.2% and return on investment 15.1% against 15.5%; net cash provided by operating activities $41,565M, payments for property and equipment $26,642M, free cash flow $14,923M against $12,660M and $15,120M; rent $2,434M; cash $10.7 billion and a $22.6 billion working capital deficit; membership income commentary) — FY2026 (ended January 31, 2026) · publ. March 13, 2026 · source ↗
  2. ReportedIn the June 2026 quarter store-fulfilled delivery grew about 43%, and roughly 37% of those orders were expedited — delivered in under three hours.
    Walmart second-quarter fiscal 2027 earnings presentation (Form 8-K exhibit 99.2) - Walmart U.S. comp sales +2.6% with transactions excluding fuel +1.5% and average ticket excluding fuel +1.1% against total like-for-like inflation of 1.4%, and an approximately 125 basis point pharmacy headwind from maximum fair price regulation; eCommerce +24% including approximately 43% growth in store-fulfilled delivery, total advertising +38% including Walmart Connect +43%, and Marketplace sales +52%; expedited deliveries under three hours approximately 37% of store-fulfilled orders; share gains across categories and income tiers led by upper-income households — Q2 FY2027 · publ. August 20, 2026 · source ↗
  3. ReportedWalmart does not publish it directly, so the proxy is the growth rate of store-fulfilled delivery against total eCommerce growth: 43% against 24% in the June quarter.
    Walmart second-quarter fiscal 2027 earnings presentation (Form 8-K exhibit 99.2) - Walmart U.S. comp sales +2.6% with transactions excluding fuel +1.5% and average ticket excluding fuel +1.1% against total like-for-like inflation of 1.4%, and an approximately 125 basis point pharmacy headwind from maximum fair price regulation; eCommerce +24% including approximately 43% growth in store-fulfilled delivery, total advertising +38% including Walmart Connect +43%, and Marketplace sales +52%; expedited deliveries under three hours approximately 37% of store-fulfilled orders; share gains across categories and income tiers led by upper-income households — Q2 FY2027 · publ. August 20, 2026 · source ↗
  4. ReportedWalmart does not publish it directly, so the proxy is the growth rate of store-fulfilled delivery against total eCommerce growth: 43% against 24% in the June quarter.
    Walmart second-quarter fiscal 2027 earnings release (Form 8-K exhibit 99.1) - revenue $187.9 billion +5.9% and +5.1% in constant currency; operating income +28.8% and +17.4% adjusted in constant currency; global eCommerce +23%; global advertising +38% with Walmart Connect excluding VIZIO +43%; membership fee revenue +17%; gross profit rate +96 basis points and Walmart U.S. +158; Walmart U.S. comp sales +2.6% and operating income +20.6% with operating expenses deleveraged 72 basis points; Sam's Club operating income +44.3% and International +16.6%; ROA 8.0% and ROI 15.4%; free cash flow $5.5 billion; 42.3 million shares repurchased for $5.1 billion year to date; FY27 guidance of 4.0-5.0% net sales growth, 7.0-8.5% adjusted operating income growth and $2.80-$2.87 adjusted EPS — Q2 FY2027 · publ. August 20, 2026 · source ↗
Sources
Generated September 22, 2026