Key Takeaways WMT's global e-commerce sales rose 22% in Q1, led by strong U.S. and Sam's Club digital performance. DG drew more high-income shoppers, with increased visits and broader product purchases in Q1. DG added 156 stores and ramped up remodels to improve layout, assortment and shopper returns.Walmart Inc. (WMT) and Dollar General Corporation (DG) are two of the biggest names in the U.S. retail sector, a cornerstone industry that plays a crucial role in consumer spending and the broader economy. Bo ...