Wal-Mart Stores Inc.'s U.S. chain is still mired in a sales slump, but the retailer's Mexican business is a star south of the border.
Wal-Mart de Mexico, Latin America's largest retail chain and a separately traded stock, reported better-than- expected sales for September, with same-store sales rising 7 percent from a year ago. Improving results have sent the shares soaring 31 percent in 2015, bouncing back from a roughly 40 percent tumble that began after a 2012 scandal in which the company was accused of bribing Mexican officials to speed up store . . .
