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Hi! And welcome to The Motley Fool's Bottom Line series!
In this video, we're going to take a closer look at what the Dow Jones Industrial Average is,
why people care about it so much, and what some of its limitations are.
The Dow Jones Industrial Average is often referred to as the Dow Jones, or simply as the Dow.
It's one of the most well-known U.S. stock indices.
It was created by Charles Dow in 1896, and is a price-weighted average of the stocks
of 30 large American publicly traded companies.
It's often used to gauge the market's performance from day to day.
What exactly is a price-weighted index?
In a nutshell, a price-weighted index means that higher-priced stocks have more influence
over the index's performance than lower-priced ones.
Consider a fictional index made up of just three stocks, with share prices of $10, $30, and $60.
Since the highest-priced stock makes up 60% of the total combined value of the three,
a 10% gain in that stock's price would raise the index by 6%.
In contrast, a 10% gain in the lowest-priced stock would only result in a 1% rise in the index.
In the case of the Dow, the prices of all 30 stocks in the index are added together,
then divided by the Dow divisor, which changes over time due to stock splits and other events.
The divisor is much less than one, which is why the value of the index is greater than
the sum of the stock prices.
Here's a current list of the Dow stocks, also called the Dow 30.
Many of these companies are household names, but investors should know that the companies
in the Dow 30 change frequently.
The Dow is still used as a gauge for the market in part because the index has been around
for more than 130 years.
This long performance history allows investors to evaluate how the market is performing now
compared to how it's performed in past decades.
Additionally, the companies in the Dow come from a variety of industries in the U.S.,
which allows the index to provide a snapshot of how U.S. companies are performing.
While the Dow has a long history of helping investors gauge the market's performance,
the index does have its limitations.
Most obviously, the Dow Jones only includes 30 stocks.
There are more than 5,300 common stocks that trade on the New York Stock Exchange and NASDAQ,
so the Dow's performance may not be the best indicator of how the overall market is doing.
Also, the price-weighting means that some of the Dow components have much more influence
on the index than others.
For example, as of this writing, Apple's stock trades for about $246 per share, while Coca-Cola
trades for just $53.
Therefore, a move in Apple's share price would have more than 4X the effect of a similar
move percentage-wise in Coca-Cola.
For these reasons, the broader and market-cap-weighted S&P 500 is widely accepted as the better indicator
of how stocks of large U.S. corporations are performing.
The bottom line is that the Dow Jones Industrial Average is still a useful tool for investors
who want to keep track of how some U.S. companies are performing, but it's probably not the
best gauge to determine how the broader stock market is doing.
Thanks for watching this video!
Do you think the Dow Jones is still a useful gauge for the overall market?
Let us know in the comments below.
If you liked this video, hit the thumbs up button and click subscribe.
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B1 Intermediate

The Dow Jones -- The Stocks and How the Index Stacks Up to the S&P 500

6 Folder Collection
林宜悉 published on February 26, 2020

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