The Consumer electronics major Apple has become a member of the Dow Jones industrial average index, which is also called the Industrial Average. Apple, currently the most valuable company in the world, was added to the stock market index after the market closed on Wednesday. The Dow Jones Industrial started trading with stock of California-headquartered Apple when the market opened on Thursday.

The Dow Jones Industrial Average was created in 1896 and it is also called 'the Dow 30' because it is an index that tracks 30 blue-chip stocks. The maker index reflects the economy and markets of the United States.

When the company became member of the Dow Jones industrial average, it replaced Delaware headquartered telecommunications company AT&T, which was boosted from the stock market index. The manager of the index, S&P Dow Jones Indices said that the changes in the market index have been made due to a stock split of Visa, another Dow member.

Currently, the iPhone maker has a market value of about $748 billion, which is more than double the value of Exxon Mobil, American multinational oil and Gas Corporation situated in Texas which is the world's second-most- valuable company. Apple is the world's most valuable company with a market value of about $748 billion. The company entered the Dow Jones industrial average on Thursday, but it is not the biggest company in the market index.

In the Dow Jones Industrial, the biggest company is Goldman Sachs Group Inc., which is an American multinational investment banking firm. The company has seen its influence on the118-year-old gauge solidified. With more than 7% share, the investment company will be the first banking firm to hold the top spot since JPMorgan Chase & Co. in 2000.