Hedge Funds: A Poor Choice for Most Long-Term Investors?
Hedge funds have become an integral part of institutional portfolio management. They constitute some 7% of public pension assets and 18% of large endowment assets. But are hedge funds beneficial for most institutional investors? To answer that question, I considered performance after fees and compatibility with institutional investors’ long-term investment goals. I found that hedge funds have been alpha-negative and beta-light since the global financial crisis (GFC). Moreover, by allocating to a diversified pool of hedge funds, many institutions have been unwittingly reducing their equity holdings. So, while my answer is no, hedge funds are not beneficial for most institutional investors, I propose a targeted approach that may justify a small allocation. And I cite new research that leaves the merit of hedge fund investing open to debate among scholars. Performance After Fees Hedge fund managers typically charge 2% of assets under management (AUM) plus 20% of profits. According to Ben-David et al. (2023), hedge funds’ “2-and-20” fee structure adds up to more than “2-and-20.” Ben-David and his co-authors estimate that the effective incentive rate is 50%, which is 2.5 times greater than the nominal 20% figure. The authors say, “This happens because about sixty percent of the gains on which incentive fees are earned are eventually offset by losses.” They calculate a 3.44% average annual cost of AUM for the hedge fund industry between 1995 and 2016. This is a heavy burden for what are essentially portfolios of publicly traded securities. How have the funds fared? Hedge funds were star performers prior to the GFC, but then things changed. Cliff Asness shows how hedge funds ran out of gas. Maybe it was because hedge fund assets increased tenfold between 2000 and 2007. Maybe it was because of the accounting rule change regarding the valuation of partnership assets that took effect in 2008. And, possibly, increased regulatory oversight from the 2010 Dodd–Frank reforms “…chilled some profitable hedge fund trading….” In any event, diversified hedge fund investing appears to have underperformed in modern (post-GFC) times. For the 15 years ending June 30, 2023, the HFR Fund-Weighted Composite Index had an annualized return of 4.0%. This compares to a 4.5% return for a blend of public market indexes with matching market exposures and similar risk, namely, 52% stocks and 48% Treasury bills. By this measure, the hedge fund composite underperformed by 0.5% per year. The recent scholarly literature on hedge fund performance is mixed, however. Sullivan (2021) reports that hedge fund alpha began declining after the GFC. Bollen et al. (2021) reach a similar conclusion. On the other hand, a more recent paper by Barth et al. (2023) indicates that a newly emergent subset of hedge funds — those not included in vendor databases – has produced returns superior to those that do participate in the databases. The reason for this is not entirely clear. Nevertheless, the revelation of the existence of these heretofore-overlooked funds suggests that they warrant further study and leaves the merit of hedge fund investing open to debate among scholars. Hedge Fund Impact on Alpha In our work, we focus on how alternative asset classes such as hedge funds have affected the alpha garnered by the institutional investor portfolios we study. This approach is concrete and pragmatic. We calculate the alphas of a large sample of pension funds. Then, we determine the sensitivity of alpha production among the funds to small changes in the percentage allocation to the asset class. Here, we are observing the return impact of each fund’s allocation to hedge funds and the performance impact of those hedge funds on the institutions’ bottom line. There is nothing nebulous or hypothetical about the procedure. Our dataset of institutional funds comprises 54 US public pension funds. Using returns-based style analysis, we devised a benchmark for each of them and calculated their alpha over the 13 years ended 30 June 2021. The range of alphas is -3.9% to +0.8 per year, or a little less than five percentage points. For each pension fund, we obtained the average allocation to hedge funds over the study period from the Public Plans Data resource of the Center for Retirement Research at Boston College. While some pension funds in the database allocated 0% to hedge funds, the average allocation was 7.3% and the maximum average allocation was 24.4%. Exhibit 1 illustrates the result of regressing the alphas on the respective hedge fund allocation percentages. The slope coefficient of -0.0759 has a t-statistic of -3.3, indicating a statistically significant relationship. We can interpret the slope coefficient as follows: A decrease of 7.6 bps in total pension fund alpha is associated with each percentage point increase in the hedge fund allocation percentage. The average allocation to hedge funds for the full 54-fund sample is 7.3% during the period under study. This translates to an alpha reduction of 0.55% per year at the total fund level for public funds in aggregate (0.073 x -7.6). That is a big hit for an asset class the constitutes less than 10% of AUM, as is the case for public pension funds in aggregate. Exhibit 1. The Relationship Between Pension Fund Alpha and Hedge Fund Allocation (2009 to 2021) Summing up so far: Hedge funds are diversified portfolios of publicly traded securities. A recent estimate of their cost to investors is 3.4% of AUM annually, which is a heavy burden. Using HFR data, we estimated that hedge funds underperformed a benchmark with matching market exposures and risk by 0.5% per year since the GFC. The scholarly literature on hedge fund performance is mixed. Our evaluation of the impact of hedge fund investing on the performance of public pension funds since the GFC indicates that an average allocation of about 7% of assets has cost the funds, in aggregate, roughly 50 bps of alpha a year. Taken as a whole, these results challenge the wisdom of investing in hedge funds — at least in diversified fashion — as a source of value added. Hedge Funds Are Not Stock Surrogates
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