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Dumb Money: Hindering Your Own Best Interest
By: Anthony M. Novara, CFA, Research Analyst
“The rational man, like the unicorn, does not exist.” – Harry Markowitz

A variety of academic research vividly illustrates that investors often behave irrationally. These analyses generally fall in line with the concept of Behavioral Finance, which describes investors as often times irrational and subsequently working against their own best interests. A key aspect of this concept is the idea that investors tend to over-trade, and in doing so, end up causing more harm than good to their portfolios. One noteworthy study that details this irrational behavior is titled “Dumb Money; Mutual Fund Flows and the Cross-Section of Stock Returns”¹ by Andrea Frazzini and Owen Lamont of the University of Chicago Booth School of Business and Yale School of Management, respectively. The paper was published in July 2005 and presents a fairly straightforward assertion: funds flowing into equity mutual funds tend to be positive for recently well performing funds and negative for recently poor performing funds. This trading behavior ultimately hinders investors’ best interests by reducing their ending wealth when compared to simply buying and holding over the same time period. The idea is similar to the value effect often described in academic studies that suggests mean reversion is prominent in financial markets; assets that have recently done well do not outperform forever and typically underperform at some point to revert back to their long-term average. 

The paper presents an example of this dynamic that focuses on the technology bubble of the late 1990s. The authors describe how in 1999, investors allocated $21 billion more in assets under management (AUM) to Janus than to Fidelity despite Fidelity’s AUM being three times larger and significantly more diversified than Janus’ technology-heavy offerings at the time. This behavior was clearly an active bet placed on Janus, which was a key participant in the euphoria of technology stocks that was pronounced during the period. Since technology stocks went on to lose 72% of their value over the following three year period of 2000-2002 while the broad market lost 38% during that period, the active allocation made during 1999 to the “hot dot” actually destroyed wealth rather than created it.

While it is difficult to quantify this wealth destruction, the DALBAR study is one prominent study that calculates returns for what the average equity and fixed income investors actually realized and compares those returns over various periods with notable benchmarks². The data shows that the average equity investor has lagged the S&P 500 over the last 1-, 3-, 5-, 10-, and 20-year trailing periods, and the average fixed income investor has done even worse, lagging the Barclays Aggregate benchmark by even more than equity investors over the last 1-, 3-, 5-, 10-, and 20-year periods.
When accounting for inflation, investors have significantly hampered their long-term real results, especially in fixed income, where the benchmark has produced a positive long-term inflation-adjusted return but the average investor has not! 

To put the DALBAR results into perspective, a $5 million account would have grown to $8.9 million for the average equity investor earning a 2.9% real return over 20 years, but would have grown to $21.5 million if that investor would have simply bought and held similar equities over the same period. A fixed income investor would have actually lost purchasing power on an inflation-adjusted basis over 20 years and the same $5 million account would have declined to $3.7 million since the real return generated was negative at -1.5%. In contract, the Barclays Aggregate would have generated a gain of $5.8 million or a total account value of $10.8 million at the end of 20 years. 

The DALBAR study estimates that psychological factors influencing investors’ decisions account for approximately half of the shortfall of returns. While many academics are quick to point out how active management trails passive management in a variety of studies, the aforementioned irrational trading behavior may partly explain this gap because portfolio managers of active funds have to respond to fund flows by either selling stocks at potentially the wrong time to fund redemptions or deploying new inflows in lesser conviction ideas. Either scenario can structurally hinder performance when compared to the scenario of the portfolio manager implementing their investment strategy without these complexities.

Since all the previous cases are hypothetical and subject to various other constraints that aren’t explored here, these examples come with the caveat that they are for illustrative purposes only. Additionally, the DALBAR study is only one study on the subject and there is no consensus on its methodology. However, the conclusion is relatively straightforward: the potential magnitude of this behavior can be quite large and significantly affect your long-term financial goals if your trading behavior mimics that of the “average investor.”

Our firm’s findings in our active vs. passive white paper³ remain the best way to succeed in resisting this wealth-destroying behavior. The tendency to want to fire an underperforming manager solely on performance and replace that manager with a manager who has recently done well is often counterproductive and is consistent with the wealth-destroying behavior measured in the “Dumb Money” paper. Our research group views active management as value-added over long-term periods if the investor is willing and able to remain patient and stick with the thesis for hiring the manager in the first place. That said, when changes occur to the organization, key decision makers leave the firm or changes are made to the philosophy and/or process, we will not hesitate to recommend a manager termination once the original long-term thesis has been altered. 



For more information on our manager selection process, please contact any of the consultants at DiMeo Schneider & Associates, L.L.C. 

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