The Payer Behind the Pharmacy CounterThin moat
Walmart (WMT) — moat facet
The customer at the counter pays a fraction of it; the counterparty that decides the rest is not in the store.
Health and wellness is $69,547 million of Walmart U.S. net sales1 and the customer at the counter pays a small fraction of it. The rest comes from pharmacy benefit managers, insurers and government programmes, and those are the counterparties that actually determine what Walmart earns.
The distinction became concrete on 1 January 2026, when a new maximum fair price regulation took effect. In the June 2026 quarter it deflated Walmart U.S. comparable sales by approximately 125 basis points and the company total by about 802. No shopper changed behaviour. No competitor took share. A price was set elsewhere and Walmart's revenue fell.
This is a customer relationship unlike any other in the company. Walmart cannot win this counterparty with price, because the counterparty sets the price. It cannot win it with convenience, because the patient chooses the pharmacy only within a network somebody else defines. What it can do is be large enough to be worth contracting with, and efficient enough to make money at whatever rate is set — which is the position of a regulated supplier rather than a retailer.
It is also the category that has grown fastest: $54,898 million to $69,547 million in two fiscal years3. So Walmart's growth is increasingly coming from the one place where its pricing power is nil.
The offsetting argument is real. Pharmacy delivers the most reliable footfall in retailing — a monthly visit, by appointment, to a counter at the back of the store — and traffic is what everything else in the building depends on.
Follow the disclosed pharmacy headwind to comparable sales: about 125 basis points at Walmart U.S. in the June 2026 quarter4. Watch whether it annualises out or is replaced by the next tranche of negotiated prices.
The maximum fair price regulation that took effect in January 2026 removed about 125 basis points from Walmart U.S. comparable sales, and the programme is legislated to expand. This counterparty is taking more control of the category's pricing every year, in the category that had been growing fastest.
At Walmart U.S. in the June 2026 quarter, and about 80 on the company total, from a maximum fair price regulation effective 1 January 2026. No shopper changed behaviour; a price was set elsewhere. Watch whether it annualises out or the next tranche replaces it.
Source: Walmart second-quarter fiscal 2027 results (August 20, 2026) ↗- ReportedHealth and wellness is $69,547 million of Walmart U.S. net sales and the customer at the counter pays a small fraction of it.Walmart Form 10-K, fiscal year ended January 31, 2026 - consolidated financial statements and notes (total revenues $713,163M, net sales $706,413M, membership and other income $6,750M, cost of sales $535,395M, operating expenses $147,943M, operating income $29,825M, net income attributable to Walmart $21,893M, diluted EPS $2.73; balance sheet including inventories $58,851M, accounts payable $63,061M, property and equipment net $136,083M, accumulated depreciation $134,587M, depreciation and amortisation $14,203M; segment note; disaggregation of revenue by merchandise category and by market, and eCommerce net sales by segment) — FY2026 (ended January 31, 2026) · publ. March 13, 2026 · source ↗
- ReportedIn the June 2026 quarter it deflated Walmart U.S. comparable sales by approximately 125 basis points and the company total by about 80.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 ↗
- ReportedIt is also the category that has grown fastest: $54,898 million to $69,547 million in two fiscal years.Walmart Form 10-K, fiscal year ended January 31, 2026 - consolidated financial statements and notes (total revenues $713,163M, net sales $706,413M, membership and other income $6,750M, cost of sales $535,395M, operating expenses $147,943M, operating income $29,825M, net income attributable to Walmart $21,893M, diluted EPS $2.73; balance sheet including inventories $58,851M, accounts payable $63,061M, property and equipment net $136,083M, accumulated depreciation $134,587M, depreciation and amortisation $14,203M; segment note; disaggregation of revenue by merchandise category and by market, and eCommerce net sales by segment) — FY2026 (ended January 31, 2026) · publ. March 13, 2026 · source ↗
- ReportedFollow the disclosed pharmacy headwind to comparable sales: about 125 basis points at Walmart U.S. in the June 2026 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 ↗