AMZN), which launched its own grocery delivery service in the U.S. in 2007, according an Associated Press report. > > Bull or Bear? Vote in Our Poll The service allows customers to order groceries, health and beauty products, and household supplies online, according to the report. Wal-Mart then delivers the products to customers' homes at times they choose. Wal-Mart said Saturday that the San Jose service is a limited test, and the company did not provide details on where else it might test the service, according to the report. Shares of Wal-Mart closed Thursday down 11 cents at $53.58. The U.S. stock market was closed Friday in observance of Good Friday.