By Haddon Libby

The Dow Jones Industrial Average (aka Dow 30, the Dow, DJIA) represents a cross-section of some of the best companies in the United States.  Due to the use of stock prices in the calculation of this index, companies with very high prices per share like Amazon, Google and Berkshire Hathaway are not included.  While this is an archaic way to build an index, it provides more stability than another popular index – the S&P 500.   A major challenge to the S&P 500 is that five stocks represent 25% of the entire value of this index.

The Wall Street Journal debuted the Dow in May 1896.  Back then, the index consisted of only twelve companies with a focus on industrial companies.  The original lineup included US Rubber (now part of Michelin), Chicago Gas (part of Integrys Energy), General Electric, US Leather (dissolved in 1952), National Lead (now NL Industries), American Sugar (now Domino Foods), Tennessee Coal & Iron (part of US Steel) and American Cotton Oil (part of Unilever).

At the end of the Roaring Twenties when markets were peaking, 18 more names were added to the index.   Following the Great Depression in 1932, a large make-over of the index led to the addition of Proctor & Gamble, IBM, and Coca-Cola.


The Dow replaced three of its thirty stocks in this index on August 31st.   Salesforce, Amgen and Honeywell replaced Exxon Mobil, Pfizer and Raytheon in the index.  At the same time, Apple completed a 4:1 stock split meaning that their $500/share price will drop to $125/share.  By splitting their stock, Apple are reducing their weighting in the Dow 30 as this index uses stock prices in the calculation of its average.  By making changes to the index, the Dow is offsetting some of the impact caused by Apple’s stock split.

Following the split in Apple’s stock, Apple dropped from over 10% of the Dow to 3%.  The largest components of the Dow are now United Health and Home Depot at about 8% of the indices value.  The smallest components of the index at about 1% of the indices value are chemical company Dow (spin-off of DuPont), Cisco and Walgreens suggesting that these three components of the Dow may soon be replaced by better representations of American business.

Aerospace is limited to Boeing with the departure of Raytheon following its merger with United Technologies and spin-off of Carrier and Otis Elevator.  By replacing Raytheon with Honeywell, the index adds a more diverse company that is also involved in aerospace and defense.  Also, its price per share is higher.

With energy companies representing only 3% of the market, having both Exxon and Chevron caused an overweight toward oil.  By removing Exxon, the Dow was able to add Salesforce, $250/share technology company with a strong place in cloud computing.  This addition helped to offset the negative impact caused by the stock split at Apple while adding an important company to the index.

Amgen replaced Pfizer to add a higher priced stock with a stronger biotech presence.  While Pfizer is one of the leaders in the hunt for a vaccine to COVID-19, its stock price is in the high $30s whereas Amgen is about $250 per share despite having a market valuation that is 35% below Pfizer.

Below is a grouping of the Dow 30 by sector:

Technology: Apple, Cisco, IBM, Intel, Microsoft, Salesforce

Healthcare: Amgen, Johnson & Johnson, Merck, United Healthcare, Walgreens

Financials: American Express, Goldman Sachs, JPMorgan Chase, Travelers, Visa

Consumer Staples: Proctor & Gamble, Coca-Cola, Walmart

Consumer Discretionary: Home Depot, McDonalds, Nike

Industrials: Caterpillar, 3M, Boeing, Honeywell

Communications: Disney, Verizon

Basic Materials: Dow

Energy: Chevron

While the Dow 30 may not be a perfect gauge as to the performance of America’s blue-chip businesses, it is a good barometer on the health of America’s largest businesses across various business sectors.  The Dow is a good if not perfect benchmark by which an investor can gauge the performance of their investment portfolio.

As a reminder, the health of a company stock is significantly different from the health of the underlying economy.

Haddon Libby is the Founder and Managing Partner of Winslow Drake Investment Management.  For more information, please visit or email