Index Issues (part 1)


Passive index investing has seen significant growth over the last 30 years as an alternative to active (stock picking) investing. Studies surrounding active investing have shown that on the whole, active investors underperform the market significantly, for two main reasons: high fees and poor stock selecting. As people come to grips with the problems inherent to active investing they naturally turn towards index funds, which seems to solve both of the problems listed above. Index funds are typically very cheap to own (solves the fee problem), and instead of actively picking stocks, they simply own sections of the market (solves the poor stock picking problem). Sounds pretty good, right?
Well, it’s definitely better than an active investment strategy but index funds are not without their problems, and they’re certainly not the best way to invest your money. Here are a few issues:

  1. An index is arbitrary. The S&P 500 Index (the most popular index out there) was created more as a measurement than an investment vehicle. It’s simply a list of 500 of the largest companies in the U.S., there’s no magic to the number 500. But that’s the thing, indexes were not created to maximize investor returns or diversify into asset classes in the most strategic way, they’re just arbitrary measurements.
  2. Index funds are almost all cap-weighted. This is an important thing to note. What this means is the larger the company, the larger percent of the index it takes up. In the S&P 500, the largest 10 companies take up 20% or more of the entire index while the bottom 10 companies take up less than 0.2%. In any index, most of your money is going into the most valuable several companies instead of being evenly diversified. A total U.S. market index fund, while seemingly offering lots of diversification, is almost entirely loaded up in the largest companies because of its cap weighting.
  3. Index fund investing often puts your finger on the trigger. Many index fund investors do their investing on their own since you can own an index fund yourself for a fraction of the cost you could pay an advisor to put you in the exact same fund. I’ve made this point in the past, but when it’s as easy as the click of a button to pull money out of an investment account, people tend to make mistakes. The S&P 500 for instance, has averaged about a 10% return per year for almost 100 years, which is fine, not great, but fine. However, from 2000 to 2009, it averaged a -1% return per year. It doesn’t matter how low the fees were or how well it compared to the stock-picking accounts, precious few of us would have stuck around for those returns over 10 years if we could move the money with the click of a button. Successful investing requires good coaching. Good coaching should include a better portfolio than a bunch of cheap mutual funds.

So what’s the alternative? Stay tuned for part 2.

2 thoughts on “Index Issues (part 1)

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