The Dow Announces Its Biggest Shakeup Since 2013

The Dow Jones Industrial Average will lose its longest-standing component as part of the blue-chip index's biggest shakeup in years.

S&P Dow Jones Indices, the global index provider that oversees the Dow Jones Industrial Average, announced late Monday that the venerable index will replace three of its components as of the market open on Monday, Aug. 31.

The move was made in part to "diversify the index by removing overlap between companies of similar scope and adding new types of businesses that better reflect the American economy."

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Joining the Dow will be:

• Customer relationship management specialist Salesforce.com (CRM (opens in new tab))
• Biotech firm Amgen (AMGN (opens in new tab))
• Industrial conglomerate Honeywell International (HON (opens in new tab))

Leaving the DJIA will be:

• Big Pharma firm Pfizer (PFE (opens in new tab)), which joined the Dow in 2004
• Raytheon Technologies (RTX (opens in new tab)), one of the resulting companies from the Raytheon-United Technologies merger and subsequent spinoffs, which has been a part of the Dow in some form since 1939
• Integrated energy major Exxon Mobil (XOM (opens in new tab)), which joined the Dow Jones Industrial Average in 1928 and was the industrial average's longest-lasting component

The Dow has announced one-off changes over the past few years, such as Apple's (AAPL (opens in new tab)) replacement of AT&T (T (opens in new tab)) in 2015, and Walgreens Boots Alliance's (WBA (opens in new tab)) replacement of General Electric (GE (opens in new tab)) in 2018. But this is the largest multi-component swap since 2013, when Goldman Sachs (GS (opens in new tab)), Nike (NKE (opens in new tab)) and Visa (V (opens in new tab)) replaced Alcoa (AA (opens in new tab)), Bank of America (BAC (opens in new tab)) and Hewlett-Packard.

Apple's Part in the Dow's Reconstitution

Kiplinger previously pointed out that Apple's upcoming 4-for-1 stock split could have a negative effect on the Dow, and indeed, S&P Dow Jones Indices cited the split as its reason for taking action.

"The index changes were prompted by DJIA constituent Apple Inc.'s decision to split its stock 4:1, which will reduce the index's weight in the Global Industry Classification Standard (GICS) Information Technology sector," writes S&P Dow Jones Indices. "The announced changes help offset that reduction."

Remember: The Dow Jones Industrial Average is weighted by price, which means the higher the nominal share price, the more effect the stock has on the index's performance. This stands in contrast to the S&P 500 and many other major indices, which are weighted by market value – the more valuable the company, the higher its index weight.

Apple currently is the largest component of the Dow by virtue of its $500-plus share price, which is almost $200 per share more than the second-largest component, UnitedHealth Group (UNH (opens in new tab)). However, once AAPL shares start trading on a split-adjusted basis Aug. 31, that price will drop down to about $125 per share.

"Overall, the Apple split alone will reduce the weighting of information technology from 27.63%, down to 20.35%," says Howard Silverblatt, Senior Index Analyst for S&P Dow Jones Indices. "On an issue basis, Apple will decline to a 3.36% weighting from their pre-split 12.20% (a 72.48% reduction), as the reallocation will increase the weight of each of the other 29 issues by 10.07%."

In other words, despite being a nearly $2 trillion company, Apple will be relegated to the middle of the pack, as the 17th-largest holding, because of its share price. That forced S&P Dow Jones Indices to make some sort of change to better represent the American economy.

Tech Is King, Energy Is Sapped

Information technology has become the market's most dominant sector at more than 28% of the S&P 500. Apple's reduction in value prompted the Dow to add more weight to tech, which it did via Salesforce.com. CRM shares, at nearly $210 per share, will become the sixth-largest Dow component at roughly 5% of the industrial average's weight.

The Dow also addressed a need in health care, which is the second-largest sector at 14.2% of the S&P 500's weight. The DJIA added Amgen – the maker of Enbrel and Neulasta, which trades around $235 per share currently – in lieu of Pfizer, a massive pharmaceutical by market value, but the Dow's smallest component thanks to a roughly $39 share price.

Meanwhile, adding Honeywell (~$160 per share) gives the Dow a little more exposure to industrials than Raytheon Technology (~$62 per share).

But perhaps S&P Dow Jones Indices' most noteworthy move was cutting its exposure to the energy sector by booting Exxon Mobil, the Dow's longest-tenured component. That leaves Chevron (CVX (opens in new tab)) as the index's lone remaining energy holding.

Energy has dwindled in importance in recent years thanks to multiple commodity-price shocks and the resulting drops in its components' value. The sector, off 34% year-to-date as a sector, currently is the smallest slice of the S&P 500 pie at just 2.4%.

Still, while the Dow might paint a more accurate picture of the economy by dropping XOM, the index also loses a part of its rich history.

"Integrated oil and gas giant ExxonMobil has been a member of the Dow since Oct. 1, 1928, which is when the index was expanded from 20 components to 30 components," S&P Dow Jones Indices writes. "However, in the records of this historical event, Exxon's name is nowhere to be found: Back in 1928, the company was known as Standard Oil Co. of New Jersey. The company wasn't unveiled to the world as 'Exxon' until 1972, and it didn't become ExxonMobil until its megamerger with Mobil in 1999."