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The Dow Jones Industrial Average is the most widely quoted stock index in the media. As a result, most non-professional investors compare their personal portfolios to the Dow. In fact, investment professionals prefer other market measures. The Dow is a price-weighted index; this means that higher priced stocks have a greater weight than lower priced stocks. This contrasts to the S&P 500, a capitalization-weighted index where the size of the company determines its weight in the index.
As of March 18, 2015, the 30 industrials in this index were: 3M Company, American Express, Apple Boeing, Caterpillar, Chevron, Cisco Systems, Coca-Cola, DuPont, Exxon Mobil, General Electric, Goldman Sachs Group, Home Depot, Intel Corp., International Business Machines, Johnson & Johnson, JP Morgan Chase, McDonald's, Merck, Microsoft Corp., Nike, Pfizer, Procter & Gamble, Travelers Companies, United Health Group, United Technologies, Verizon Communications, Visa, Wal-Mart Stores, and the Walt Disney Company.
The Dow Jones Industrial Average increased 7.3 percent in 2012, surged 26.5 percent in 2013, and increased 7.5 percent in 2014. The 10-year average of the annual gains edged up in 2014 to 6.5 percent from 6.1 percent in 2013.
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At the end of July 2015, the Dow Jones Industrials were up 6.8 percent, up from June's annual increase of 4.7 percent.
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On the month in July, the Dow Jones Industrials edged up 0.4 percent after sliding 2.2 percent the month before.