AutoZone (NYSE: AZO) is a Fortune 300 corporation base in Memphis, Tennessee which is engaged primarily in the business of the retail sale of automotive parts and accessories. It was originally a division of Memphis-based wholesale grocer Malone & Hyde, and went under the name Auto Shack, which was changed after the Radio Shack company objected. After the sale of the grocery operation to the Fleming Companies of Oklahoma City, the name of the company was changed to AutoZone to reflect the new focus. AutoZone holds the naming rights to the downtown Memphis baseball stadium that is the home of the Memphis Redbirds of the Pacific Coast League. The company also sponsors the AutoZone Liberty Bowl.