This article was updated on April 6, 2018, and originally published on November 21, 2017. 

The Dow Jones Industrial Average (DJINDICES:^DJI) is probably the one stock market indicator that most people can name right away. Dating to 1885, it's the second-oldest active market index, after sibling Dow Jones Transportation Average, and it's the most widely covered. 

How many stocks are in the DJIA?

Today, there are 30 stocks that make up the Dow Jones Industrial Average. The total has grown over time: Initially, the index had just 12 components, representing the major public industrial companies of the day. Today, the 30 companies in the index cover all of the major sectors of the U.S. stock market except for transportation and utilities. One thing to remember: Despite its name, the DJIA hasn't been limited to traditional "industrial" companies for many years. 

All of the companies in the DJIA are considered major players in their respective industries. Most are household names.  

A stock market quote board, showing price movements of various stocks.

Image source: Getty Images.

How is the DJIA calculated?

Most of the indices familiar to investors are "market-capitalization-weighted", meaning that the companies with higher valuations have more influence on the index's movements. In the case of the S&P 500, the price movements of highly valued companies like Apple and ExxonMobil have a much greater influence on the index's value than do companies with smaller market caps. 

The Dow Jones Industrial Average is very different. The DJIA is a "price-weighted" index, meaning that the companies with higher stock prices have greater weight in the index's calculation. But the DJIA isn't just the sum of the stock prices of the 30 stocks: It's a scaled average, meaning that the index's value is adjusted to account for historic stock splits, dividends, and other changes to the individual stocks over time. 

Are the DJIA stocks good investments? 

Does being in the Dow Jones Industrial Average make a stock a good place to put your money? That depends on your perspective, and possibly on your investing goals. If you're looking for big, sturdy, "blue chip" stocks, it's certainly a place to start looking. And many of the DJIA component stocks pay good dividends. In fact, seven of the DJIA stocks are Dividend Aristocrats, meaning that they have raised dividends at least once a year for the last 25 years. Those stocks are marked with an asterisk (*) in the chart below.

What are the stocks in the Dow Jones Industrial Average?

Here are the 30 stocks that make up the Dow Jones Industrial Average today.  

Company Year Added
3M* (NYSE:MMM) 1976
American Express (NYSE:AXP) 1982
Apple (NASDAQ:AAPL) 2015
Boeing (NYSE:BA) 1987
Caterpillar (NYSE:CAT) 1991
Chevron* (NYSE:CVX) 2008
Cisco (NASDAQ:CSCO) 2009
Coca-Cola* (NYSE:KO) 1987
The Walt Disney Company (NYSE:DIS) 1991
DowDuPont (NYSE:DD) 2017
ExxonMobil* (NYSE:XOM) 1928
General Electric (NYSE:GE) 1907
Goldman Sachs (NYSE:GS) 2013
The Home Depot (NYSE:HD) 1999
Intel (NASDAQ:INTC) 1999
Johnson & Johnson* (NYSE:JNJ) 1997
JPMorgan Chase (NYSE:JPM) 1991
McDonald's* (NYSE:MCD) 1985
Merck (NYSE:MRK) 1979
Microsoft (NASDAQ:MSFT) 1999
Nike (NYSE:NKE) 2013
Pfizer (NYSE:PFE) 2004
Procter & Gamble* (NYSE:PG) 1932
Travelers Companies, Inc. (NYSE:TRV) 2009
United Technologies (NYSE:RTX) 1939
UnitedHealth (NYSE:UNH) 2012
Verizon (NYSE:VZ) 2004
Visa (NYSE:V) 2013
Wal-Mart (NYSE:WMT) 1997

For breaking news and analysis on the 30 stocks in the Dow Jones Industrial Average, head right to the front page of The Motley Fool.

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.