Wal-Mart's Outperformance Helps S&P 500 Reach Record High By: Benzinga via Benzinga November 13, 2014 at 14:53 PM EST Wal-Mart Stores, Inc.'s (NYSE: WMT) first same-store sales growth in nearly two years heldped lift the S&P's 500 stock ... Read More >> Related Stocks: Wal-Mart Stores, Inc.