Essentials of Allocating to Private Assets

Private markets can be used to pursue a range of potential benefits in investor portfolios.

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Introduction To Allocating to Private Assets

What You Need to Know
01

Allocating to Build Wealth

Asset allocation is the art of matching clients’ goals to specific mixes of investments. Private markets can be an important part of these efforts, but individual investor allocations historically have been small. That is now changing. [ 1 ]

02

The Case for Private Markets

Private assets historically have generated attractive risk-adjusted returns compared to public markets across cycles. [ 2 ] They have long been used by family offices, endowments, and other sophisticated investors for objectives such as capital appreciation, income generation, diversification, and inflation mitigation. [ 3 ]

03

Illustrative Allocations

Private assets can work across a range of risk profiles, but allocation decisions depend on the clients’ specific objectives and circumstances. Disentangling the topics of risk tolerance and liquidity needs is key to unlocking these assets’ potential.

Larger private markets allocations
historically have driven higher returns

Private growth portfolio delivered ~1.4x public market returns over last 20 years

One of the main attractions of private markets is their potential for outperformance compared to public assets.

Historically, private asset portfolios have outperformed their public counterparts. As illustrated in Exhibit 2, an illustrative private market growth portfolio—designed to pursue capital appreciation—has delivered returns that are roughly twice those of a traditional 60/40 portfolio over the past 20 years.

Exhibit 2: Illustrative Private Growth Portfolio Delivered 1.4x Traditional 60/40 Returns Over Last 20 Years
Hypothetical Growth of $100,000

Note: Past performance does not predict future returns. Source: Morningstar, Cambridge Associates, NCREIF, Cliffwater, as of December 31, 2025. As commonly used in the industry, the 60/40 portfolio is 60% allocated to the S&P 500 and 40% is allocated to the Bloomberg US Aggregate Bond Index. Private growth portfolio is 40% allocated to private equity, 25% to private infrastructure, 20% to private real estate, and 15% allocated to private credit. The returns and volatility of the asset classes presented are based on the following indices: Private Equity: Cambridge Associates US Private Equity Index. Private Real Estate: NFI-ODCE Index. Private Credit: Cliffwater Direct Lending Index. Private Infrastructure: Cambridge Associates Private Infrastructure Index. Please note that Cliffwater Direct Lending Index is reported unlevered, gross of fees, and NFI-ODCE Index is reported gross of fees. The indices and benchmarks reflected herein are not representative of all investments in the applicable asset classes, the performance of such indices and benchmarks in periods other than that the 20-year period shown herein may differ materially, and it should not be assumed that any trends shown will continue. Annualized returns and volatility are calculated based on the quarterly returns over the 20-year period from December 31, 2005 to December 31, 2025.

Allocating to Private Markets

Private markets can be strategic, long-term investments. They are less liquid than public markets, an important tradeoff.

Understanding clients’ needs—such as liquidity and tax considerations—helps determine the right allocation strategy.

Who you invest with matters. The difference in outcomes among private markets managers can be wide.

Note: This information is provided for illustrative purposes only and should not be considered research or investment advice.

Combining Private Asset Classes

Private markets encompass several distinct asset classes, each with its own characteristics. As Exhibit 3 illustrates, they tend to serve different roles in a portfolio, and those differences are part of what can make them effective in combination.

Held on their own, each is a distinct return stream. Because they have historically behaved differently at different points in a cycle, holding them together may provide diversification benefits and reduce volatility at the total-portfolio level.

Combining asset classes is not a mechanical exercise, however. Sizing and rebalancing across asset classes requires expertise. We believe this is one reason manager selection, and the scale and track record behind the underlying strategies, can be especially important in multi-asset private portfolios.

Selecting Assets and Sizing Allocations

It’s crucial to distinguish between clients’ risk tolerance and their liquidity needs. These concepts are often conflated, which can lead to sub-optimal allocations. It’s important to note that higher allocations to private assets do not necessarily equate to higher risk in portfolios. [ 8 ]
Broadly, investors can take one of two paths, and both can be effective.

The first is to build the allocation piece by piece—selecting and sizing individual private equity, private credit, real estate, and infrastructure exposures, and rebalancing among them over time. This offers the most control and fits a specific objective.

The second is to access these asset classes through a single, multi-asset solution, where one manager combines them in a single, professionally managed allocation.

Simplicity, with one subscription and one manager relationship rather than sourcing and monitoring several

Diversification across asset classes from the outset

A single manager to evaluate, in a market where outcomes can vary widely by manager

With those points in mind, here is an example of how a private markets allocation can be designed.

Note: Alternative investments involve a high degree of risk and investors may not get back the amount originally invested. There is no guarantee that any fund or investment will achieve its aims or objectives or avoid substantial losses.

Illustrative Growth Portfolio

Exhibit 4: Growth Portfolio: Combining Public and Private Assets
Growth Portfolio with 30% Private


Performance, 2005-2025
Compared to a traditional 60/40 portfolio (60% Equity / 40% Fixed Income)

Note: Past performance does not predict future returns. Figures may not add up to 100% due to rounding. For illustrative purposes only. Any investment involves a high degree of risk and there is no guarantee that any investment will achieve its aims or objectives or avoid substantial losses. | (1) Source: Morningstar, Cambridge Associates, NCREIF, Cliffwater, as of December 31, 2025. As commonly used in the industry, the 60/40 portfolio is 60% allocated to the S&P 500 Index and 40% is allocated to the Bloomberg US Aggregate Bond Index. The returns and volatility of the asset classes presented are based on the following indices: Private Equity: Cambridge Associates US Private Equity Index. Private Real Estate: NFI-ODCE Index.

Private Credit: Cliffwater Direct Lending Index. Private Infrastructure: Cambridge Associates Private Infrastructure Index. Please note that Cliffwater Direct Lending Index is reported unlevered, gross of fees, and NFI-ODCE Index is reported gross of fees. The indices and benchmarks reflected herein are not representative of all investments in the applicable asset classes, the performance of such indices and benchmarks in periods other than that the 20-year period shown herein may differ materially, and it should not be assumed that any trends shown will continue. Annualized returns and volatility are calculated based on the quarterly returns over the 20-year period from December 31, 2005 to December 31, 2025.

Considerations Before Allocating

Private market investing means active ownership of less liquid assets, as value creation takes time. Liquidity needs at the total portfolio level are one important consideration before allocating to private equity. In addition, manager selection may be of particular importance given the wider dispersion of returns compared to public markets. Key manager attributes include scale, staying power and a long track record.

Blackstone Private Markets Allocator Tool

Allocating to private markets can enhance performance and improve diversification. Use this tool to see how private markets may improve portfolio performance and help manage investment risk.

Read the complete Essentials of Allocating to Private Assets

Frequently Asked Questions

Why allocate to private assets?

What are the advantages of a portfolio with private assets vs. the traditional 60/40 portfolio?

How to build a growth portfolio with private assets?

How to build an income portfolio with private assets?

“Future of Alternatives 2029”, Preqin.
Morningstar, over the 20-year period from December 31, 2005 to December 31, 2025. Return and Volatility are based on quarterly returns. Volatility is represented by the standard deviation. The returns and volatility of the asset classes presented are based on the following indices: Private Equity: Cambridge Associates US Private Equity Index. Public REITs: MSCI US REIT Index. Investment Grade Bonds: Bloomberg US Aggregate Bond Index. Leveraged Loans: Morningstar LSTA US Leveraged Loan Index. Private Real Estate: NFI-ODCE Index. High Yield: Bloomberg US Corporate High Yield Bond Index. US Stocks: S&P 500 Index. Private Credit: Cliffwater Direct Lending Index. Private Infrastructure: Cambridge Associates Private Infrastructure Index. Public Infrastructure: S&P Global Infrastructure Index.
Diversification does not ensure a profit or protect against losses. There is no assurance that any fund or product will effectively hedge inflation.
Diversification does not ensure a profit or protect against losses.
“Better Alternative(s): Private Investments May Improve Outcomes for Defined Contribution Plan Participants” by Cambridge Associates, as of June 2023.
Private Investments include all illiquid strategies (venture capital, non-venture private equity, private credit, private real assets, etc.).
Diversification does not ensure a profit or protect against losses.
Diversification does not ensure a profit or protect against losses.