A Short List of Common Mistakes Money Managers Make

A Short List of Common Mistakes  Money Managers Make

What errors do most money managers make today?

  • Chasing performance
  • Over-diversification
  • Benchmarking / Hugging the index
  • Over-trading
  • Relying too heavily on earnings growth
  • Analyzing the income statement only
  • Refusing to analyze industries
  • Buy newsy companies
  • Relying on the sell-side
  • Trusting management too much


Let me handle these one-by-one:

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Chasing performance

In writing this, I am not against using momentum.  I am against regret.  Don’t buy something after you have missed most of the move, as if future stock price movement is magically up.  Unless you can identify why the stock is underappreciated after a strong move up, don’t touch it.


Most managers hold too many stocks.  There is no way that a team of individuals can follow so many stocks.  Indeed, I am tested with 36 holdings in my portfolio, which is mirrored for clients.  Leaving aside tax reasons, it would be far better to manage fewer companies with more concentrated positions.  You will make sharper judgments, and earn better returns.

Benchmarking / Hugging the index

It is far better to ignore the indexes and invest in what you think will yield the best returns over the next 3-5 years.  Aim for a largeactive share, differing from the benchmark index.  Make some real nonconsensus investments.     Show real moxie; don’t be like the crowd.

Yes, it may bring in more assets if you are never in the fourth quartile, but is that doing your best for clients?  More volatility in search of better overall returns is what investors need.  If they can’t bear short-term volatility, they should not be invested in stocks.


We don’t make money when we trade.  We make money while we wait.  Ideas take time to work out, and there are frequently disappointments that will recover.  If you are turning over your portfolio at faster than a 50% rate, you are not giving your companies adequate time to grow, turn around, etc.  For me, I have rules in place to keep from over-trading.

Relying too heavily on earnings growth

Earnings growth is far less predictable than most imagine.  Companies with high profit margins tend to attract competitors, substitutes, etc.

When growth companies miss estimates, the reaction is severe.  For value companies, far less so.  Disappointments happen; your portfolio strategy should reflect that.

Analyzing the income statement only

Every earnings report comes four, not just one, major accounting statements, and a bevy of footnotes.  In many regulated industries, there are other financial statements and metrics filed with the government that further flesh out the business.  Often an earnings figure is less than the highest quality because accrual entries are overstated.

Also, a business may be more or less valuable than the earnings indicate because of the relative ability to convert the resources of the company to higher and better uses, or the relative amount to reinvest in capex to maintain the earnings stream.

Finally, companies that employ a lot of leverage to achieve their earnings will not do well when financing is not available on favorable terms during a recession.

Refusing to analyze industries

There are two ways to ignore industry effects.  One is to be totally top-down, and let your view of macroeconomics guide portfolio management decisions.  Macroeconomics rarely translates into useful portfolio decisions in the short run.  Even when you are right, it may take years for it to play out, as in the global financial crisis – the firm I was with at the time was five years early on when they thought the crisis would happen, which was almost as good as being wrong, though they were able to see it through to the end and profit.

Then there is being purely “bottoms up,” and not gaining the broader context of the industry.  As a young investor that was a fault of mine.  As a result, I fell into a wide variety of “value traps” where I didn’t see that the company was “cheap for a reason.”

Buying newsy companies

Often managers think they have to have an investable opinion on companies that are in the news frequently.  I think most of those companies are overanalyzed, and as such, don’t offer a lot of investment potential unless one thinks the news coverage is wrong.  I actually like owning companies that don’t attract a lot of attention.  Management teams do better when they are not distracted by the spotlight.

Relying on the sell-side for analysis

Analysts and portfolio managers need to build up their own industry knowledge to the point where they are able to independently articulate how an industry makes money.  What are the key drivers to watch?  What management teams seem to be building value the best?  This is too important to outsource.

Trusting management too much

I think there is a healthy balance to be had in talking with management.  Once you have a decent understanding of how an industry works, talking with management teams can help reveal who are at the top of the game, and who aren’t.  Who is honest, and who bluffs?  This very long set of articles of mine goes through the details.

You can do a document-driven approach, read the relevant SEC filings and industry periodicals, and not talk with management ever – you might lose some advantage doing that, but you won’t be tricked by a slick-talking management team.  Trusting management implicitly is the big problem to avoid.  They are paid to speak favorably regarding their own firm.


This isn’t an exhaustive list.  I’m sure my readers can think of more foibles.  I can think of more, but I have to end somewhere.  My view is that one does best in investing when you can think like a businessman, and exclude many of the distractions that large money managers fall into.

By David Merkel, CFA of Aleph Blog

Updated on

David J. Merkel, CFA, FSA — 2010-present, I am working on setting up my own equity asset management shop, tentatively called Aleph Investments. It is possible that I might do a joint venture with someone else if we can do more together than separately. From 2008-2010, I was the Chief Economist and Director of Research of Finacorp Securities. I did a many things for Finacorp, mainly research and analysis on a wide variety of fixed income and equity securities, and trading strategies. Until 2007, I was a senior investment analyst at Hovde Capital, responsible for analysis and valuation of investment opportunities for the FIP funds, particularly of companies in the insurance industry. I also managed the internal profit sharing and charitable endowment monies of the firm. From 2003-2007, I was a leading commentator at the investment website RealMoney.com. Back in 2003, after several years of correspondence, James Cramer invited me to write for the site, and I wrote for RealMoney on equity and bond portfolio management, macroeconomics, derivatives, quantitative strategies, insurance issues, corporate governance, etc. My specialty is looking at the interlinkages in the markets in order to understand individual markets better. I no longer contribute to RealMoney; I scaled it back because my work duties have gotten larger, and I began this blog to develop a distinct voice with a wider distribution. After three-plus year of operation, I believe I have achieved that. Prior to joining Hovde in 2003, I managed corporate bonds for Dwight Asset Management. In 1998, I joined the Mount Washington Investment Group as the Mortgage Bond and Asset Liability manager after working with Provident Mutual, AIG and Pacific Standard Life. My background as a life actuary has given me a different perspective on investing. How do you earn money without taking undue risk? How do you convey ideas about investing while showing a proper level of uncertainty on the likelihood of success? How do the various markets fit together, telling us us a broader story than any single piece? These are the themes that I will deal with in this blog. I hold bachelor’s and master’s degrees from Johns Hopkins University. In my spare time, I take care of our eight children with my wonderful wife Ruth.
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