Walmart serves customers and members more than 200 million times per week at more than 9198 retail units under 60 different banners in 15 countries. With fiscal year 2010 sales of $405 billion, Walmart employs 2.1 million associates worldwide. A leader in sustainability, corporate philanthropy and employment opportunity, Walmart ranked in the top ten among retailers in Fortune Magazine’s 2010 Most Admired Companies survey. Walmart was founded in 1962, with the opening of the first Walmart discount store in Rogers, Ark. The company incorporated as Wal-Mart Stores, Inc., on Oct. 31, 1969. The company’s shares began trading on OTC markets in 1970 and were listed on the New York Stock Exchange two years later. The company grew to 276 stores in 11 states by the end of the decade. In 1983, the company opened its first Sam’s Club membership warehouse and in 1988 opened the first supercenter – now the company’s dominant format – featuring a complete grocery in addition to general merchandise. Walmart became an international company in 1991 when it opened its first Sam’s Club near Mexico City.