Walmart said U.S. sales rose during the most recent quarter, propelled by shoppers buying groceries, home goods and toys—a sign that spending is off to a steady start this holiday season. The retail giant raised its sales and profit estimates for the year.

Walmart may have started out as a retailer geared to budget-sensitive consumers, but its customer base is continuing to grow, thanks to more affluent shoppers. The retailer saw share gains in new shoppers across income levels mainly led by upper-income households,