Robeco, The Investments Engineers
blue circle

Insight

A liquid alternative to private equity investments

Private equity has become one of the fastest-growing asset classes, but it remains costly and illiquid. Can investors capture its return potential through listed markets instead? In new research, Joop Huij and Georgi Kyosev suggest that replicating private equity exposures in public equities offers a compelling liquid alternative.

    Authors

  • Joop Huij - PhD, Head of Sustainable Index Solutions

    Joop Huij

    PhD, Head of Sustainable Index Solutions

  • Georgi Kyosev - PhD, Portfolio Manager Sustainable Index Solutions

    Georgi Kyosev

    PhD, Portfolio Manager Sustainable Index Solutions

Private equity in context

Over the past decade, private equity assets under management have surged from USD 2 trillion in 2014 to more than USD 9 trillion by mid-2024. Pension funds and endowments have raised allocations significantly, inspired by models such as Yale’s, where exposure to venture capital, buyouts, and private real estate often reaches 29%.

The two dominant strategies are leveraged buyouts and venture capital. Buyouts focus on smaller firms at attractive valuations, often highly leveraged and with profitability challenges. Venture capital backs young, high-growth firms with substantial R&D spending, typically at higher valuations.

Private equity investors generally enjoy closer alignment with management than public shareholders, Huij and Kyosev explain, reducing agency costs such as excessive pay or empire building. This alignment, combined with the ability to restructure companies and implement operational improvements, explains much of private equity’s appeal.

Returns and challenges

Private equity has delivered annualized returns of around 15% since 1991, a premium of roughly 6% compared to global public markets. Buyout strategies saw peaks of 8% in the late 1990s and mid-2000s, while venture capital delivered annual premiums as high as 25% before the dotcom crash. Beyond returns, diversification benefits stem from leverage, strategic barriers to entry, and active ownership.

However, as Huij and Kyosev point out, investors must contend with several challenges:

  • Dry powder: Committed but undeployed capital still incurs fees.

  • High costs: Management fees of around 2% and performance carry of 20% are common.

  • Liquidity constraints: Exits through IPOs or private sales are uncertain and time-consuming.

  • Sustainability data gaps: Limited reporting makes it difficult to track portfolio-level impact.


Get the latest insights

Subscribe to our newsletter for investment updates and expert analysis.

Don’t miss out

Can public markets replicate private equity?

Extensive research suggests that private equity returns largely reflect exposure to public equity factors. Buyout funds typically show high market beta and a tilt toward value, while venture capital exhibits high market exposure and a strong growth tilt.

Even after adjusting for factor exposures, residual alpha remains – about 3% annually for buyouts and 8% for venture capital. Nonetheless, Huij and Kyosev argue that replication strategies targeting these exposures in public equities can approximate private equity-like returns, with the added benefits of liquidity, lower costs, and transparency.

Figure 1: Exposures of private equity

Figure 1: Exposures of private equity

Past performance is no guarantee for future returns. The value of your investment may fluctuate. Source: Robeco (June 2025 and Ang et al (2014).

Robeco’s liquid alternative

Building on its systematic investing expertise and active ownership capabilities, Robeco has developed a liquid strategy to replicate private equity characteristics in public equities. The process involves first defining the universe, starting with over 10,000 companies, screened for liquidity. Then factor tilts are applied. Buyout proxies emphasize leverage and share buybacks, while venture capital proxies focus on earnings growth and R&D.

Portfolio construction follows, during which weights are optimized to mirror private equity exposures. Sustainability is integrated by applying proprietary SDG scores and engagement insights to improve governance and climate alignment.

As Huij and Kyosev demonstrate, this systematic approach has delivered simulated performance broadly in line with the MSCI Burgiss private equity benchmark. While reported private equity returns appear smoother due to infrequent NAV updates, research shows that ‘unsmoothed’ results exhibit volatilities closer to those of Robeco’s replicating strategy.

Figure 2: Cumulative returns in portfolio simulations

Figure 2: Cumulative returns in portfolio simulations

Simulated past performance is no guarantee of future results. For illustrative purposes only. Source: Robeco, based on portfolio simulation, cumulative return in USD, gross dividends reinvested, Developed markets, Q1 1991-Q3 2024, logarithmic scale. MSCI Burgiss returns are based on MSCI Global Private Equity Closed-End Fund Index (Unfrozen; USD). The performance shown is based on a simulated and hypothetical (back-tested) data and may suffer from the benefit of hindsight. Although Robeco is prudent in its assumptions for simulations, no representation is made that the index will achieve results similar to those shown and actual performance results may deviate significantly.

Sustainability and engagement benefits

Public markets provide a broad investment pool and rich sustainability data, enabling portfolios to be tilted toward positive SDG alignment while underweighting negatively scored companies. This aligns particularly well with venture-style exposure to innovative firms.
Robeco’s strategy also emphasizes active ownership. Engagement with portfolio companies addresses sustainability, governance, and human capital – reflecting the close involvement typical in private equity but applied within listed markets.

Conclusion

Private equity offers attractive return potential but is costly, illiquid, and often lacking in sustainability transparency. Replication in public equities enables investors to capture much of the premium while improving liquidity, lowering fees, and integrating sustainability.

Robeco’s innovative research aims to capture the full alpha by combining academic knowledge, portfolio construction expertise, and proprietary voting and engagement data. The goal is to deliver private equity-like returns but with the benefits of public equity – high liquidity, lower costs, and sustainability integration.

This article is an excerpt of a special topic in our five-year outlook.

Let's keep the conversation going

Keep track of fast-moving events in sustainable and quantitative investing, trends and credits with our newsletters.

Don’t miss out
Robeco

Robeco aims to enable its clients to achieve their financial and sustainability goals by providing superior investment returns and solutions.

Important information
The Robeco Capital Growth Funds have not been registered under the United States Investment Company Act of 1940, as amended, nor or the United States Securities Act of 1933, as amended. None of the shares may be offered or sold, directly or indirectly in the United States or to any U.S. Person (within the meaning of Regulation S promulgated under the Securities Act of 1933, as amended (the “Securities Act”)). Furthermore, Robeco Institutional Asset Management B.V. (Robeco) does not provide investment advisory services, or hold itself out as providing investment advisory services, in the United States or to any U.S. Person (within the meaning of Regulation S promulgated under the Securities Act).
This website is intended for use only by non-U.S. Persons outside of the United States (within the meaning of Regulation S promulgated under the Securities Act who are professional investors, or professional fiduciaries representing such non-U.S. Person investors. By clicking “I Agree” on our website disclaimer and accessing the information on this website, including any subdomain thereof, you are certifying and agreeing to the following: (i) you have read, understood and agree to this disclaimer, (ii) you have informed yourself of any applicable legal restrictions and represent that by accessing the information contained on this website, you are not in violation of, and will not be causing Robeco or any of its affiliated entities or issuers to violate, any applicable laws and, as a result, you are legally authorized to access such information on behalf of yourself and any underlying investment advisory client, (iii) you understand and acknowledge that certain information presented herein relates to securities that have not been registered under the Securities Act, and may be offered or sold only outside the United States and only to, or for the account or benefit of, non-U.S. Persons (within the meaning of Regulation S under the Securities Act), (iv) you are, or are a discretionary investment adviser representing, a non-U.S. Person (within the meaning of Regulation S under the Securities Act) located outside of the United States and (v) you are, or are a discretionary investment adviser representing, a professional non-retail investor.


Access to this website has been limited so that it shall not constitute directed selling efforts (as defined in Regulation S under the Securities Act) in the United States and so that it shall not be deemed to constitute Robeco holding itself out generally to the public in the U.S. as an investment adviser. Nothing contained herein constitutes an offer to sell securities or solicitation of an offer to purchase any securities in any jurisdiction. We reserve the right to deny access to any visitor, including, but not limited to, those visitors with IP addresses residing in the United States. This website has been carefully prepared by Robeco. The information contained in this publication is based upon sources of information believed to be reliable. Robeco is not answerable for the accuracy or completeness of the facts, opinions, expectations and results referred to therein. Whilst every care has been taken in the preparation of this website, we do not accept any responsibility for damage of any kind resulting from incorrect or incomplete information. This website is subject to change without notice. The value of the investments may fluctuate. Past performance is no guarantee of future results. If the currency in which the past performance is displayed differs from the currency of the country in which you reside, then you should be aware that due to exchange rate fluctuations the performance shown may increase or decrease if converted into your local currency. For investment professional use only. Not for use by the general public.

Warning – Fraudulent use of Robeco on websites and social media Read more