Retail shares trade mixed; Wal-Mart gains 2% By: MarketWatch May 18, 2010 at 10:20 AM EDT Shares in the retail sector seesaw in early activity after the latest earnings reports from Wal-Mart Stores Inc. and Home Depot. Read More >> Related Stocks: Dow Jones Industrial Average (EOD) Home Depot Wal-Mart Stores, Inc.