Private Equity: Who’s in your Top Ten?

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Deciles and quartiles have been around for a long time and have been used to rank everything from hereditary traits to student test scores to crime rates.

First seen in 1882 and 1879 respectively, both terms are attributed to Francis Galton (1822-1911), the British mathematician, explorer and cousin to the considerably more famous Charles Darwin.

Among investors in alternative assets, quartile ranking – where funds are split into four performance groups – has long been considered the gold standard for assessing private equity funds by both LPs and GPs. During the past year, however, preferences for performance results have moved away from quartile ranking in favour of more granular decile ranking.

Why the sudden migration toward deciles? Part of the answer lies in the inherent limitations of quartile ranking. To begin with, dividing all of your data among only four quarters can hide a great deal of detail and useful information. For example, if a fund ranks in the second quartile, there’s no way of seeing where it ranks within that quartile. It could be at the bottom end, near the median, or at the top end and, therefore, a better performing fund. Simply put, quartile ranking hides both good and bad variants and can obscure significant differences in performance. And in the current private equity space, so many of the funds are in the top quartile that the label becomes meaningless.

On the other hand, decile ranking, with more than twice the available measurement buckets, is much more likely to reveal those outliers, especially those that would have been at the edges of the quartile buckets. So instead of comparing funds ranked only as not-so-good, pretty good, good and very good, a limited partner can make investment decisions based on quantitatively better information.

However, simply switching to decile rankings is likely to show a disproportionate number of managers in the top 10%-20% of funds. But when you can combine this more granular ranking with a more consistent data collection practices—such as using LP cash flows rather than GP survey results to track return activity and with other differentiators such as geographic and investment stage and size focus—deciles can become a real indicator of performance rather than just another marketing tool.

Despite these drawbacks, quartiles used to be sufficient. More recently, though, LPs have been faced with a new and vastly demanding environment. Consequently, LPs must perform more due diligence and, thus, need performance rankings that show much more granularity. LPs have also become much more sophisticated out of necessity. They want—and need—more transparency and better tools for more precise analyses of alternative investments, where management and performance fees are typically high. Deciles enable LPs to meet these demands.

Jonathan Boyd
Editorial Director of Open Door Media Publishing Ltd, and Editor of InvestmentEurope. Jonathan has over two decades of media experience in Japan, Australia, Canada and the UK. Over the past 17 years he has been based in London writing about funds and investments. From editing the newsletter of the Swedish Chamber of Commerce in Japan in the 1990s he now focuses on Nordic markets for InvestmentEurope. Jonathan was awarded Editor of the Year at the Professional Publishers Association (PPA) Independent Publisher Awards 2017. Shortlisted for the same in 2016, he was also shortlisted in 2017 and 2015 for the broader PPA Awards category Editor of the Year (Business Media).

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