Wal-Mart Stores, Inc. (NYSE: WMT) was founded by Sam Walton in 1962. It is the largest retailer in the world and one of the largest companies in the world based on revenue. In 2004 Wal-mart was listed as the largest company in the world, edging out Exxon for the top spot; but the recent rise in oil prices has seen Exxon's return to the top of the list.

For the fiscal year ending January 31, 2006, Wal-Mart reported net income of US$11.2 billion on US$316 billion of sales revenue (3.5% profit margin). It is the largest private employer in the United States, Mexico and Canada. It holds an 8.9 percent retail store market share, with $8.90 out of every $100 spent in U.S. retail stores being spent at Wal-Mart.

Wal-Mart's impact is hotly debated. Some praise the corporation for cutting prices on consumer goods, while others criticize it for harmful impacts in many other realms. Specific areas of controversy include the company's product origins; treatment of suppliers, environmental policies, and employees; extraction of public subsidies; impacts on independent businesses and local communities, and effects on global trade.

Wal-Mart operates discount retail department stores selling a broad range of non-grocery products, though emphasis is now focused on the "Supercenters" which offer a full line of grocery items. Wal-Mart also operates Sam's Club, a "warehouse club" (similar to Costco and BJ's) that sells discounted bulk merchandise to dues-paying members.

In addition to its wholly-owned international operations, Wal-Mart owns a 42% stake in The Seiyu Co., Ltd. in Japan, with a proposed $597 million to increase its stake to 50%. This purchase has been approved by Seiyu Group shareholders and The Seiyu will be consolidated into Wal-Mart International in FYE 2006.

In September 2005, Wal-Mart acquired 33.3% of the Central American Retail Holding Company (CARHCO), and in March 2006, increased its holdings to 51%. Wal-Mart Central America was formed from the 375 supermarkets and other store formats, operating in 5 Central American countries: Guatemala, El Salvador, Honduras, Nicaragua and Costa Rica.

In the past, Wal-Mart operated dot Discount Drugs, Bud's Discount City, Hypermart*USA, OneSource Nutrition Centers, and Save-Co Home Improvement stores. In 1990 Wal-Mart acquired The McLane Company, a foodservice distributor. In 2003 McLane Company was sold to Berkshire Hathaway.

Wal-Mart stock is publicly traded on the New York Stock Exchange under the symbol WMT.

(Wal-Mart Information Courtesy of Wikipedia.)