What is the Dow Jones Index and which 30 companies make the grade?

Here is a brief history of the world's oldest share market index.

| More on:
Businessman using a digital tablet with a graphical chart, symbolising the stock market.

Image source: Getty Images

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More

The Dow Jones Industrial Average Index (DJX: .DJI) closed at 42,342.24 points overnight, up 0.036%.

Only 30 companies make up this historical index, which is the world's oldest market indices.

Its co-creators were United States journalists Charles Dow and Edward Jones.

The pair created a financial news service called Dow Jones & Company, which delivered bulletins to Wall Street traders. This led to the creation of The Wall Street Journal in 1889, with Dow as the founding editor.

The pair created the Dow Jones Industrial Average Index in 1896 as a way of measuring the stock market.

'The Dow' has changed form over the years.

When it was launched, it only included 12 industrial stocks.

Original members included General Electric Co (NYSE: GE), American Cotton Oil, American Sugar, American Tobacco, Chicago Gas, U.S Rubber, and Tennessee Coal & Iron.

Today, it tracks the performance of 30 large blue-chip stocks from the S&P 500 Index (SP: .INX), which are purposely selected for inclusion by a committee.

The selected companies are large in size and market leaders in their fields.

The index remains highly esteemed today and is considered a barometer for US economic health.

How is the Dow Jones Index different to the S&P 500?

The Dow Jones Industrial Average Index is different from most market indices in that it does not rely on market capitalisation from the largest to the smallest for its formation.

Instead, a committee selects the stocks based on various criteria.

According to S&P Global:

While stock selection for The Dow is not governed by a strict set of rules, the committee focuses on an eligible company's reputation, its history of sustained growth, its interest to investors, and its sector representation of the broader market.

Over the past 15 years, for example, a number of technology companies have been added, reflecting the growth of the sector within the U.S. equity market.

The index committee meets regularly and makes changes to the index on an as-needed basis. There are five people on the committee — three from S&P Dow Jones Indices and two from The Wall Street Journal.

The Dow Jones Industrial Average Index steers clear of extremely high-priced stocks to prevent distortion.

According to S&P Global:

The reason is that changes in the stocks' prices could exert too great an influence on the index, making The Dow a less reliable measure of overall market performance.

As a general rule, the committee monitors whether the highest-priced stock in the index has a price more than 10 times that of the lowest.

The index is also price-weighted, which means that price changes in the highest-priced stocks have a greater impact on the index than changes in the lowest-priced stocks.

S&P Global says this makes the Dow Jones Index more "value-oriented" than the S&P 500 because the stock prices of well-established, large-cap companies tend to be less volatile.

The Dow Jones Industrial Average Index covers all market sectors except two: utilities and transportation.

These sectors have their own indices, the Dow Jones Transportation Average and the Dow Jones Utility Average.

In terms of sector representation today, the Dow Jones Industrial Average Index is dominated by financial stocks, at 23.9%. Technology is 19.4%, healthcare is 15.7%, consumer discretionary is 13.8%, industrials are 12.7%, materials are 5.4%, consumer staples are 4.6%, and both energy and communications are 2.2%.

Recent performance

S&P Dow Jones Indices senior index analyst Howard Silverblatt discussed the performance of the Dow Jones Industrial Average Index in November:

The Dow Jones Industrial Average … posted seven new closing highs in November, also closing the month at a closing high, and trading above 44,000 and 45,000 for the first time (reaching 45,071.29 intraday, with a closing high of 44,910.65, shy of the 45,000 mark).

The market then moved past its relief rally to asset and issue reallocation, as it digested the impact of potential future government policies, regulations and spending.

For the month, the index posted a broad 5.73% gain, as all 11 sectors gained …

Consumer Discretionary did the best, up 13.24% and Health Care did the worst, up 0.13%.

According to the fact sheet, the Dow Jones Industrial Average Index has recorded a net total return of 20.59% in the year to 29 November. Its 10-year annualised average return is 11.42%.

Which 30 companies make the grade?

Here is a list of the 30 companies currently in the Dow Jones Industrial Average Index.

Should you invest $1,000 in Dow Jones Industrial Average (price Return) right now?

Before you buy Dow Jones Industrial Average (price Return) shares, consider this:

Motley Fool investing expert Scott Phillips just revealed what he believes are the 5 best stocks for investors to buy right now... and Dow Jones Industrial Average (price Return) wasn't one of them.

The online investing service he’s run for over a decade, Motley Fool Share Advisor, has provided thousands of paying members with stock picks that have doubled, tripled or even more.*

And right now, Scott thinks there are 5 stocks that may be better buys...

See The 5 Stocks *Returns as of 6 March 2025

John Mackey, former CEO of Whole Foods Market, an Amazon subsidiary, is a member of The Motley Fool’s board of directors. American Express is an advertising partner of Motley Fool Money. JPMorgan Chase is an advertising partner of Motley Fool Money. Motley Fool contributor Bronwyn Allen has no position in any of the stocks mentioned. The Motley Fool Australia's parent company Motley Fool Holdings Inc. has positions in and has recommended 3M, Amazon, Apple, Chevron, Cisco Systems, Goldman Sachs Group, Home Depot, JPMorgan Chase, Merck, Microsoft, Nike, Nvidia, Salesforce, Visa, Walmart, and Walt Disney. The Motley Fool Australia's parent company Motley Fool Holdings Inc. has recommended Amgen, GE Aerospace, International Business Machines, Johnson & Johnson, Sherwin-Williams, UnitedHealth Group, and Verizon Communications and has recommended the following options: long January 2026 $395 calls on Microsoft and short January 2026 $405 calls on Microsoft. The Motley Fool Australia has recommended Amazon, Apple, Microsoft, Nike, Nvidia, Salesforce, Visa, and Walt Disney. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Scott Phillips.

More on Share Market News

A woman's hand draws a stylised 'Top Ten' on a projected surface.
Share Gainers

Here are the top 10 ASX 200 shares today

It was a big session for ASX shares this hump day.

Read more »

Frustrated stock trader screaming while looking at mobile phone, symbolising a falling share price.
Share Fallers

Why KMD, Paladin Energy, Sovereign Metals, and Tuas shares are falling today

These shares are having a tough time on hump day. But why?

Read more »

A man clenches his fists in excitement as gold coins fall from the sky.
Share Gainers

Why Clinuvel, Orthocell, Vulcan, and Wildcat shares are storming higher

These shares are having a good time on hump day. But why?

Read more »

Modern accountant woman in a light business suit in modern green office with documents and laptop.
Share Market News

Why the ASX 200 just got a welcome boost from the latest Aussie inflation data

ASX 200 investors are responding bullishly to the latest Aussie CPI print. But why?

Read more »

A female stockbroker reviews share price performance in her office with the city shown in the background through her windows
Broker Notes

Top brokers name 3 ASX shares to buy today

Here's what brokers are recommending as buys this week.

Read more »

A male investor sits at his desk looking at his laptop screen holding his hand to his chin pondering whether to buy Macquarie shares
Share Market News

Up 300% since 2022, do Codan shares have further to run?

Where will Codan go from here?

Read more »

A young man punches the air in delight as he reacts to great news on his mobile phone.
Broker Notes

Broker says this ASX 200 share is a 'quality stock to put in your bottom drawer'

Ord Minnett has good things to say about this blue chip.

Read more »

Broker working with share prices on computers.
Opinions

2 high-quality ASX 200 stocks to buy for the long-term

Experts have revealed two ASX 200 stocks worth owning in a quality portfolio.

Read more »