Wal-Mart Stores shares appear to be losing their mojo, despite the stock closing in on all-time highs. Shares are down in 2014, and down one percent over the last 12 months. Next, the mega-retailer will start to see more problems pile up: Tracy Morgan, actor and stand-up comedian, is suing the company. Morgan was among a number of passengers injured when a Wal-Mart truck crashed in early June, and now he's alleging negligence at the mega-retailer after one of its drivers was up for more than 24 hours before the fatal crash that almost hospitalized him. Wal-Mart's woes are today's Chart of the Day.