“Private markets” is a description of where an asset trades rather than what it is. A company is a company whether or not its shares are listed; a loan is a loan whether a bank made it or a fund did. What changes when the asset is private is everything surrounding it — how it is priced, whether it can be sold, what the owner is told about it, and who is allowed to own it.
Those four differences produce most of what is distinctive about investing here, including most of the advantages and all of the difficulties.
The four differences
Pricing is estimated, not observed. A listed share has a price every second, set by people transacting. A private asset has a valuation, produced periodically by a process — models, comparables, appraisals, judgment — usually with independent input and audit review.
This has a consequence that shapes almost every debate about the asset class: reported volatility is lower partly because of how the measurement works, not only because of how the assets behave. Two portfolios holding identical economic exposure, one marked daily by a market and one valued quarterly by a process, will report different volatility. That difference feeds into portfolio construction models and mechanically strengthens the apparent case for the allocation.
This is not an argument against private markets. It is an argument for knowing what the numbers are measuring.
Liquidity is limited or absent. A closed-end private fund offers no exit for years. Semi-liquid vehicles offer capped, periodic repurchases. Neither resembles selling a listed security. The illiquidity is not incidental — it is what allows managers to hold assets through periods when selling would be costly, and it is a large part of what investors are supposedly paid for.
Disclosure is contractual. Public issuers disclose what securities regulation requires, publicly, on a schedule. Private funds disclose what their documents require, to their own investors. A large institution can negotiate reporting rights; a small investor generally accepts what is offered.
The notable exception is BDCs, which are registered and file position-level schedules of investments — the most granular disclosure available anywhere in private credit, and a genuinely useful analytical resource even for investors considering a manager’s private funds instead.
Access is restricted. Traditional private funds require accredited investor status and often qualified purchaser status. See accredited investors.
What sits inside
Private equity — buyouts, growth equity, and venture capital. Ownership stakes in private companies.
Private credit — lending to companies that would once have borrowed from banks or the bond market.
Private real estate — direct ownership, syndications, funds, DSTs, and non-traded REITs.
Infrastructure — the physical systems economies run on.
Secondaries — buying existing fund interests rather than committing to new ones.
Other strategies — litigation finance, royalties, specialty niches, and various hedge fund approaches, which sit adjacent to private markets rather than squarely within them.
What investors are actually being paid for
Three things, and it is worth separating them because they are not equally reliable.
Illiquidity. The clearest and most defensible. An investor who genuinely does not need the capital can accept an exit constraint that others cannot, and should be compensated for it. This premium is real in principle. Whether it is adequate in any particular fund, at any particular entry point, is an empirical question that headline returns do not answer.
Complexity and diligence. Private assets require work that public securities do not — underwriting, due diligence, monitoring, and administration. Investors capable of that work, or willing to pay for it, can access opportunities others cannot.
Manager skill. The least reliable, and the most emphasised in marketing. Dispersion between managers in private markets is genuinely wide, wider than in most public strategies. That cuts both ways: the returns commonly cited for the asset class are typically achievable only through access to strong managers, and that access is itself constrained. An investor who cannot reach the better managers should not assume the asset class averages apply to them.
The costs that are easy to underweight
Fees, compounded over a long holding period, including carried interest and, in perpetual vehicles, ongoing charges that accrue for as long as the position is held.
Cash drag on committed but uncalled capital in drawdown structures.
Tax complexity — K-1s, multi-state filings, and delayed reporting. See alts tax and investor reporting.
Administrative burden, which recurs annually for the life of every position.
Valuation uncertainty, which means an investor may not know a problem exists until it is well advanced.
Getting access
Traditional funds for eligible investors with scale and patience.
Registered vehicles — interval and tender offer funds, non-traded BDCs and REITs — which broadened access substantially and carry different fee mechanics and capped liquidity. Covered in alternative investment funds.
Secondaries and evergreen structures, which remove capital calls and shorten the J-curve — while changing what the investor is buying.
For an independent, unaffiliated list of firms active in the space, see the SQX Alts directory.
For a broader orientation across every category on this site, see alternative investments: an overview.
The honest framing
Private markets give investors access to a much larger share of economic activity than public markets alone, with structures that allow long-horizon ownership without the pressure of continuous pricing.
They also cost more, disclose less, cannot be exited when wanted, are valued by parties with an interest in the valuation, and produce returns that are harder to compare against alternatives than the reported numbers suggest.
Both descriptions are accurate. An investor who holds both at once will make better decisions than one who has only been shown either.
The cluster
- Alternative investment funds — the vehicles and what each offers
- Accredited investors — who qualifies and why the rules exist
- Private placements — how private offerings work for investors
- Allocating to alternatives — sizing the allocation
- Liquidity budgeting — planning around illiquidity
This guide is educational and general; it is not investment, tax, or legal advice.
Frequently Asked Questions
What are private markets?
Investments in assets that are not traded on public exchanges — private companies, private loans, real estate, infrastructure and similar. Capital is generally raised through private offerings rather than registered public ones, positions are illiquid, valuations are produced by a process rather than observed in a market, and disclosure is contractual rather than mandated.
How do private markets differ from public markets?
Four ways that matter. Pricing is periodic and estimated rather than continuous and observed. Liquidity is limited or absent rather than daily. Disclosure is what the documents require rather than what securities regulation mandates. And access is generally restricted to investors meeting eligibility standards.
What are investors compensated for in private markets?
Chiefly for accepting illiquidity, for bearing complexity and diligence costs, and in some strategies for taking risks that public markets price differently. Whether the compensation is adequate is a separate question from whether it exists, and it varies by strategy, by manager, and by entry point.
Are private market returns really higher?
Reported returns are difficult to compare with public markets because valuations are periodic and appraisal-based rather than market-priced, which smooths reported volatility and complicates correlation estimates. Public market equivalent analysis, which asks what the same cash flows would have earned in a public index, is a more honest comparison than headline returns.
Who can invest in private markets?
Traditionally accredited investors and often qualified purchasers, through private offerings with high minimums. Access has broadened through registered vehicles such as interval funds, tender offer funds, non-traded BDCs and REITs, which are available more widely and carry their own trade-offs on cost and liquidity.
Sources
- Securities Act of 1933, Regulation D, Rule 506; Investment Company Act of 1940, Sections 3(c)(1) and 3(c)(7)
- ASC 820, Fair Value Measurement
- Global Investment Performance Standards (GIPS) maintained by CFA Institute
