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Writer's pictureRobin Powell

Time horizon — the difference between us and the pros

Updated: Nov 13





Robin writes:


As TEBI readers know, a fundamental problem (arguably the fundamental problem) with the investing industry is that the interests of those who work in it are misaligned with those of the consumers they're supposed to serve. For me, the single most important way in which their interests differ from ours is time horizon. Jack Bogle once wrote: “The historical data supports one conclusion with unusual force: To invest with success, you must be a long-term investor.” But pick up any investment magazine and you'll find that the emphasis is very much on the recent past. To blame this on journalists is only partly justified; after all, they need a story to write about. No, the real impetus for this obsession with the short-term comes from the industry itself. Why? Well, it's partly because fund managers know that the vast majority of them can't compete with low-cost, buy-and-hold indexing in the long run.


They can only outperform in short bursts. So encouraging people to focus on short-term performance is the best way to persuade us that they really can add value. Another reason why fund managers have a short-term perspective is that their jobs, their pay, and their bonuses depend on maximizing returns over periods as short as three years or even fewer. As this excellent article by JOE WIGGINS explains, the key is to focus on your time horizon, not on other people's. In other words, refuse to play the game. Doing so isn't "settling for average" or second best. It's giving yourself a profound and sustainable advantage over the highly paid professionals who want to manage your money.



The damage wrought by our fascination with short-term performance is a toxic combination of two behavioral impulses – narrative fallacy and extrapolation. Narrative fallacy is our propensity to create stories and seemingly coherent explanations for random events; a means of forging order from noise. Extrapolation is our tendency to believe that recent trends will persist.


Short-term performance in financial markets is chaotic and meaningless (insofar as we can profitably trade based on it); but we don’t see this; instead, we construct stories of cause and effect. Not only this, but the tales we weave are so persuasive we convince ourselves that they will continue.


This is why when performance is strong absolutely anything goes. Stratospheric valuations, unsustainably high returns, made-up currencies, and JPEGs of monkeys cannot be questioned —

Of course, it is telling us very little of use. It is just that we struggle to accept or acknowledge it. There must always be a justification.



Performance is not process

In the years before the stark rotation in markets, I noticed a fund manager frequently posting on social media about the stellar returns that they had generated. Their approach was in the sweet spot of the time – companies with strong growth and quality characteristics, often with a technology element – but this was never cited as a cause of the success. Instead, the focus was on how their process and sheer hard work had directly resulted in consistent outperformance over short time periods. They were simply doing it better than other people.


This was palpable nonsense. Financial markets do not provide short-term rewards for endeavor. Nor can any investment approach consistently outperform the market except by chance (unless someone can predict the near future, which if they could, they wouldn’t be running money for us). Many investors, however, seemed to accept this. Why did they laud such a bizarre notion? Because performance was strong. If performance is good a fund manager can say almost anything and it will be accepted as credible. If performance is bad then everything said will be disregarded.


The problem with extolling short-term performance as evidence of skill (rather than fortunate exposure to a prevailing trend) is what happens when conditions change. If we say that our process leads to consistently good short-term outcomes, what do we say when short-term outcomes are consistently bad? When performance is strong it is because of ‘process’, when it’s weak it is because of ‘markets’.



Sustaining the industry

Although the fascination with short-term market noise is a major impediment for investors, it serves to sustain the scale of the asset management industry. There is an incessant stream of stories to tell, fund managers to eulogize or dismiss, and themes to exploit. If financial markets were boring and predictable, the industry would be a very different place. Not only do the vacillations of markets give us something to talk about, but they also give us something to sell. The sheer number of funds and indices available to investors is a direct result of the randomness of short-term performance. There will always be a new story or trend to exploit tomorrow. The impact of the reams of ever-changing narratives is compounded by our inclination to mistake positive short-run performance for skill. If investors struggle to disentangle luck and skill it means unskilled fund managers are rarely ‘competed out’ of the industry. It also incentivizes new entrants – I have no skill in picking stocks, but if I selected a random portfolio there would be a decent chance of me outperforming over one year or three years, maybe even longer. It is a pretty lucrative business, so I might as well give it a go. If we make judgments based on short-term performance everyone will look skillful some of the time.



ESG scrutiny

We have recently been witnessing an emerging backlash against ESG investing and, as the obverse of the resurgence of the value factor, this has undoubtedly been fueled by weak short-term performance. Returns from ESG leaders, in-vogue companies, and aligned industries have lagged and therefore the narrative has changed — The underlying problem is that any benefits of ESG investing were consistently obscured by unsubstantiated and unrealistic claims about its return potential. ESG investing was never (and should never have been) about the performance of any given fund or area of the market over arbitrary time horizons. As soon as we base the credibility of something on its potential to deliver short-run performance we are simply waiting for the reversal. The desire to link every aspect of investing to the vagaries of short-term performance does nothing but scupper long-term thinking.


The obsession with short-term performance is a vicious circle. Everyone must care about it because everyone cares about it. We can be the odd one out, but also out of a job. This creates a pernicious misalignment problem where professional investors aren’t incentivized to make prudent long-term decisions; they are incentivized to survive a succession of short-time periods. Irrespective of whether this leads to good long-term results. The best way to preserve a career is to think short-term. The more we are gripped by short-term performance, the worse our long-term returns will be. Any investor with the ability to adopt a long-term approach has a profound and sustainable advantage, there are just very few of us able to exploit it.




© The Evidence-Based Investor MMXXIV. All rights reserved. Unauthorised use and/ or duplication of this material without express and written permission is strictly prohibited.

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