Walmart shares fall after U.S. sales and store traffic fail to meet expectations, despite a higher full-year outlook

Walmart’s stock came under pressure on Aug. 20, 2026, after a market update tied the move to weaker-than-expected performance in the company’s U.S. business. The report said Walmart’s sales and store traffic missed Wall Street expectations for the period in question, weighing on investor sentiment.

The key metric highlighted was comparable sales growth. Comparable sales (often called “comps”) is a measure of revenue from stores open long enough to be compared period to period, excluding the impact of store openings or closings. For retailers such as Walmart, comps are closely watched because they aim to show underlying demand trends rather than growth from footprint changes.

Alongside revenue, the update pointed to customer traffic coming in below expectations. Store traffic is typically used by retailers to gauge how many shoppers are visiting, which can help distinguish between a decline caused by fewer trips versus changes in what shoppers spend per visit.

Even with the miss in U.S. sales and traffic, the report also noted that Walmart raised its full-year outlook. That kind of guidance change suggests management saw enough durability in its broader outlook to lift projections for the year, even as the most recent operating snapshot did not satisfy market expectations.

The disconnect between a higher annual outlook and a near-term underperformance is not uncommon for large retailers, particularly when quarterly results are shaped by timing factors such as promotions, shifts in consumer spending, and inventory or pricing decisions. In this case, the market reaction implies investors were focused more on the immediate indicates from U.S. demand than on the company’s full-year plan.

Walmart operates primarily through its U.S. stores and e-commerce channels, and it regularly emphasizes the importance of bringing value to customers. When comparable sales and traffic do not land as hoped, it can indicate that customers are either cutting back, shifting shopping patterns, or reacting more strongly to pricing and competitive moves.

The market update did not spell out additional detail in the information available here, such as the magnitude of the sales and traffic shortfalls, whether the miss was concentrated in grocery versus general merchandise, or how much of the outlook increase depends on specific expense or margin assumptions. It also did not disclose whether any particular categories or regional trends drove the results.

What investors may look for next is how Walmart reconciles the weaker near-term demand indicators with its raised full-year outlook. Questions likely include whether the company expects comps and traffic to stabilize in coming quarters, how it will manage promotional intensity, and whether any mix shifts can support sales even if traffic remains soft.