Economy of the United States Corporation, Apple Inc., Verizon, JPMorgan Chase, and Cardinal Health. In 2013, eight of the world's ten largest companies by market capitalization were American: Apple Inc., ExxonMobil, Berkshire Hathaway, Walmart, General Electric, Microsoft, IBM, and Chevron Corporation. According to Fortune Global 500 2011, the ten largest U.S. employers were Walmart, U.S. Postal Service, IBM, UPS, McDonald's, Target Corporation, Kroger, The Home Depot, General Electric, and Sears Holdings. Apple, Google, IBM, McDonald's, and Microsoft are the world's five most valuable brands in an index published by Millward Brown. A 2012 Deloitte report published in "STORES" magazine indicated that of the world's top
Market capitalization US$40 trillion in September 2008. In 2014 and 2015, global market capitalization was US$68 trillion and US$67 trillion, respectively. Market cap is given by the formula formula_1, where "MC" is the market capitalization, "N" is the number of shares outstanding, and "P" is the closing price per share. For example, if some company has 4 million shares outstanding and the closing price per share is $20, its market cap is then $80 million. If the closing price per share rises to $21, the market cap becomes $84 million. If it drops to $19 per share, the market cap falls to