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PRIVATE ALLOCATIONS • LIQUIDITY • DIVERSIFICATION
For many advisors, private markets have become a practical tool for building portfolios that are designed to seek differentiated return streams, broader diversification, and in some cases more durable income. BlackRock’s 2026 outlook for wealth advisors makes that shift clear, arguing that private markets are moving from niche allocations to more essential components of resilient portfolios.
Still, one of the most common questions from clients is also one of the hardest to answer simply:
How much should I actually allocate to private markets?
The right answer is rarely a fixed number. In practice, allocation decisions should be driven by three things: the client’s liquidity needs, the role private assets are meant to play in the broader portfolio, and the opportunity set across private market strategies today. Thoughtful allocation is less about maximizing an alternatives bucket and more about building a portfolio that can hold up across different environments. Cambridge Associates, BlackRock, MSCI, and J.P. Morgan all point in the same general direction: portfolio construction matters more than labels, and private assets can improve outcomes when they are sized with discipline.
For some clients, private markets may be a return enhancer. For others, they may serve as a source of current income, access to sectors underrepresented in public markets, or exposure to long-duration secular themes like infrastructure and energy. BlackRock’s capital market framework explicitly ties private market sizing to liquidity risk and the cash flow requirements of the investor, rather than treating private assets as a standalone target.
That is an important shift. It means the question is not whether a client “should” have a 10% or 20% allocation in the abstract. It means the allocation should reflect the client’s total balance sheet, expected spending needs, time horizon, and tolerance for capital being tied up for years rather than days.
An illustrative framework
Below is a simple way to think about private market sizing. This is not a universal prescription, but a portfolio construction guide for discussion:
The key idea is simple: the stronger the client’s liquidity profile, the larger the potential role private markets can play. That is broadly consistent with BlackRock’s private market allocation matrix and with the wider institutional shift toward whole-portfolio construction.
For many advisors, the practical takeaway is that a private markets allocation should usually be earned, not assumed. Starting smaller, pacing commitments, and increasing exposure only when the client has demonstrated comfort with capital calls, distributions, and reporting complexity can lead to better long-term outcomes than jumping immediately to a headline target.
This may be the most underappreciated part of the conversation.
Private assets may improve portfolio construction, but they also change the client experience. The timing of capital calls, limited redemption windows, distribution uncertainty, and the inability to rebalance instantly all matter. A client with meaningful near-term spending needs, tax payments, real estate plans, or concentrated business exposure should be sized differently from a client with substantial excess liquidity and a long investment runway.
BlackRock’s framework explicitly emphasizes cash flow requirements when determining strategic private market allocations. CAIA has similarly highlighted that portfolio construction around illiquidity should be driven by total portfolio thinking, not by treating alternatives as an isolated sleeve.
A practical liquidity test for advisors
Before increasing a client’s private allocation, it can help to pressure-test a few questions:
That last point matters. Illiquidity is not automatically a benefit. It only becomes a potential advantage when the client has the ability and willingness to be paid for locking capital away. In other words, the illiquidity premium is only useful if the portfolio and the client can actually bear the illiquidity.
The diversification case for private markets is not just about lower reported volatility. In fact, sophisticated allocators know to be cautious here, because appraisal-based pricing and stale marks can make private assets look smoother than they really are.
The stronger diversification case is broader than that.
Private markets can provide access to different cash flow streams, financing structures, business models, and sector exposures that may not be easily replicated in traditional public market portfolios. BlackRock’s 2026 private markets outlook frames private assets as increasingly relevant in a world shaped by structural inflation, greater dispersion, and long-duration investment themes like infrastructure and the energy transition.
Cambridge Associates makes a related point in its 2025 strategic portfolio construction work, noting that higher expected return for more diversified portfolios can come from access to incremental return sources, including private investments and more diverse market risks.
MSCI also found that private assets contributed to portfolio diversification in its 2025 analysis of wealth portfolios. And J.P. Morgan’s alternatives work shows that private markets sit in a different part of the risk/return and manager-dispersion landscape than traditional stocks and bonds, which helps explain why manager selection and portfolio role matter so much.
What this means in practice
Private markets can diversify portfolios in at least three ways:
Once an advisor determines that private markets deserve a role in the portfolio, the next question becomes where to lean today.
That matters because private credit, private equity, real estate, and infrastructure are not interchangeable. Each can play a different role depending on whether the client is seeking income, growth, inflation sensitivity, portfolio resilience, or exposure to long-term structural themes.
Private credit
Private credit often makes the most sense for clients prioritizing current income, seniority in the capital structure, and more defined downside protections. In today’s environment, it can be an appealing fit for investors looking for contractual cash flows and yield premiums relative to traditional fixed income.
Private equity
Private equity remains more growth-oriented and operationally driven. It is typically better suited for clients with longer time horizons, greater tolerance for illiquidity, and an interest in capital appreciation rather than immediate income. While the return potential can be compelling, it usually comes with more dependence on exit timing, manager execution, and the broader deal environment.
Real estate
Private real estate can sit somewhere between income and appreciation, depending on the strategy. Core and income-oriented real estate may appeal to clients seeking cash flow and tangible asset exposure, while opportunistic or value-add strategies may be better suited for clients willing to take on more business-plan and execution risk. Real estate can also add diversification through property-level cash flows and sector-specific drivers that differ from public equities and bonds.
Infrastructure
Infrastructure deserves a place in this conversation because it often offers a very different return profile from both private equity and traditional fixed income. In many cases, infrastructure investments can provide long-duration cash flows, essential-service exposure, and in certain segments a degree of inflation sensitivity. For clients seeking portfolio ballast, income, and exposure to secular growth areas like energy, power, and transportation, infrastructure can be a particularly compelling part of the private markets toolkit.
The practical implication is that a private markets allocation should not simply be a single line item. A client seeking income and stability may warrant more exposure to private credit, infrastructure, or certain real estate strategies. A client with longer-dated capital and higher tolerance for lockups may be better positioned to lean more heavily into private equity.
That is why allocation decisions work best when they start with the role each strategy is meant to play in the portfolio, rather than treating all private market exposure as if it serves the same purpose.
Private markets should not be treated as a single bucket, and they do not belong in every portfolio at the same weight.
The better question is whether a client’s portfolio would benefit from thoughtfully sized exposure to private strategies with different liquidity, cash flow, and return characteristics than traditional public markets.
For the right client, the answer is often yes.
But the process should start with liquidity. From there, diversification and opportunity set should shape the allocation mix across private credit, private equity, real estate, and infrastructure based on the role each strategy is meant to play.
That is when private markets stop being a product discussion and start becoming a more effective portfolio construction tool.
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