Walmart now sees net sales rising 3.75% to 4.75% from last year, compared to prior guidance for a range of 3% to 4%. Walmart also tweaked its earnings forecast, saying it now expects adjusted earnings per share to range from $2.52 to $2.62. The previous outlook was for $2.50 to $2.60.

U.S. stock futures were trading lower early Wednesday as traders awaited earnings reports from America’s big-box retailers and the release of