'How Can I Be Up If The Market Goes Down?' Isn't The Right Question To Ask

 | Dec 01, 2020 21:37

This article was written exclusively for Investing.com

Or, conversely, "How can I be down when the market is up?"  Clients have asked me both questions and the answer is the same for each:

“There is no ‘The Market’ for stocks.”

From a U.S. investor’s perspective, there are three benchmarks that give a partial view of what stocks are doing, but they are just that—a partial view.  And this does not even consider the myriad other indexes from other nations and regions.

For U.S. investing, the first of these is the venerable old Dow Jones Industrial Average (DJIA, DJI or “The Dow.”)  When someone asks, “How is the market?” or a TV anchor reading his teleprompter says, “Today the market finished at xyz,” the Dow is the index they are typically talking about.  Which is strange, since it is the least scientific of all the indexes…

Why do I say this?  First of all, the DJI is comprised of just 30 U.S. companies out of the thousands traded on the various exchanges and around the world.  There are some 3,500 stocks listed on U.S. exchanges (and about 630,000 total companies traded either over-the-counter or in other parts of the world).  Using just the U.S.-listed companies, means the DJIA represents less than 1% of all these disparate firms. 

Yes, they are big “blue chip” companies but, still, 1% does not give a particularly accurate picture of what your portfolio is likely to do on any given day (unless, of course, your only holding is the DJIA ETF or other fund.

Is this index truly representative of your portfolio?

It gets worse.  The Dow is “price-weighted” rather than market-capitalization (“market cap”) weighted, so “dollar” movement is more important than percentage movement up or down.  In other words, the most expensive stocks in the index skew the “average” more than the lower-priced stocks among the 30.

Finally, the selection of issues that comprise the Dow seems to be arbitrary bordering on capricious.  A committee meets every now and again to decide if, in their opinion, the current 30 companies best represent what is happening in the broader investment landscape.  If so, the DJI components stay the same.  If not, off with their heads and the committee replaces them with a different company. 

From 2013 to 2020 nine companies have been replaced with nine others.  That means “the Dow” of today is not the same as the Dow of 7 years prior—30% of the positions in it are new!

Why does this matter? Because the DJI is still the most-cited market benchmark, so it carries a greater share of mind for the average investor who does not have time to follow the market hour-by-hour.

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