Walmart to offer online grocery delivery to 40% of U.S. homes with Postmates

Walmart Inc. said Tuesday that it will offer online grocery delivery to more than 40% of U.S. homes through a partnership with Postmates, the on-demand delivery service that launched in 2011. The expansion will start in Charlotte, N.C. and spread in the coming months. Walmart personal shoppers will pick the groceries customers select online or on the Walmart app and select a delivery window for Postmates to bring the items to the shopper's home. Groceries can be delivered same-day, there's...