Founded in 1978, The Home Depot, Inc. is the world's largest home improvement specialty retailer and the fourth largest retailer in the United States with fiscal 2010 retail sales of $68.0 billion and earnings from continuing operations of $3.3 billion. The Home Depot has more than 2,200 retail stores in the United States (including Puerto Rico and the U.S. Virgin Islands and the territory of Guam), Canada, Mexico and China. The Home Depot's stock is traded on the New York Stock Exchange (NYSE: HD) and is included in the Dow Jones industrial average and Standard & Poor's 500 index.