DJIA (Dow Jones Industrial Average) 

The Dow Jones Industrial Average (DJIA) is a special numeric indicator of the stock exchange that shows the situation in the industrial sector of the economy.
It is one of the most important global stock indices and the most important US stock index.
The index appeared in 1884 and was published in 1896, thanks to the work of Wall Street Journal editor Charles Dow and his partner Edward Jones.

Initially, the Dow Jones index included only 13 companies; by 1928, there were already 30 companies.
Today, the Dow Jones Index is the arithmetic average of the prices of all major US companies.
The index is calculated not by capitalization, but by the prices of shares of the companies included in the index.

The companies with the most weight in the DJIA are:

• Apple Inc.
• United Health Group
• Microsoft Corp.
• Johnson&Johnson
• Coca-Cola
• Goldman Sachs Group Inc.
• 3M Co
• McDonald's Corp.
• Boeing Co