Walmart (NYSE: WMT) investors are seeing some of the best growth they've witnessed from the retailer in years. However, it's also clear that remodeled stores and initiatives like grocery pick-up and delivery won back market share that Walmart had lost to rivals like Kroger in past years. -- CFO Brett Biggs Walmart navigated through several cost headwinds this quarter, including labor and general price inflation, to achieve healthy core profit margins.