Private Equity’s Maturity Wall
01 The record hiding in old funds
At the end of 2025, US private-equity funds aged at least ten years still held an estimated $348.5 billion of net asset value. A further $512.7 billion sat in funds aged seven to nine years. The first figure is a record. The second is the maturity wall behind it.
The figures, drawn from PitchBook data reported by The Wall Street Journal, describe fund NAV rather than portfolio-company enterprise value, and they cover US private equity rather than the global private-capital market. They should not be treated as a count of confirmed zombie funds. An eleven-year-old fund can still own a well-supported company with a credible sale plan; a younger fund can already be functionally stuck. Age is a warning signal, not a diagnosis.1
The broader inventory is also large, but its scope must remain separate. Preqin estimated that unsold North American private-equity portfolio companies were worth $3.91 trillion in September 2025, representing 74% of the assets measured in that dataset. Bain, using a global buyout-oriented scope and data through the first half of 2025, counted roughly 32,000 unsold companies worth $3.8 trillion. These are not interchangeable numbers: one is North American portfolio-company value cited by the WSJ, the other a global buyout inventory estimate assembled from PitchBook and Preqin.14
The maturity wall matters because fund liquidation does not happen automatically when a legal term expires. MSCI’s analysis of its private-capital universe puts the average liquidation age at roughly twelve years for buyout funds and fifteen years for venture capital, using a data-driven definition based on residual NAV. Median NAV for buyout funds aged eleven to twelve was still close to 25% of commitments in late 2024, and annual distribution rates for old buyout and venture funds had often remained below 50%. The standard cash-flow assumption that a fund simply disappears at year ten is becoming less useful.2
A delayed sale can be rational. A weak auction may destroy value, an operational plan may be unfinished, or a company may need another investment cycle before it can attract the right buyer. But the passage of time changes more than the discount rate. It changes the fee base, staffing, reserves, board attention, financing options, LP patience, carried-interest expectations and the manager’s ability to raise its next fund. At some point, the exit backlog becomes a fund problem.
02 When an old fund becomes a zombie
“Zombie fund” is a market label, not a defined legal category. MSCI has used age and residual NAV thresholds. Coller Capital’s 2026 survey used a much narrower and more accusatory definition: a fund whose life is prolonged to maximise management fees. Other investors focus on failed successor fundraising, repeated extensions, very low distributions, thin staffing or the absence of a credible path to liquidity. The disagreement is not semantic trivia. A data screen built around fund age will capture healthy long-duration assets; a definition built around motive is difficult to prove from the outside.26
The legal clock
A traditional closed-end buyout fund commonly has a ten-year term. The first four to six years form the investment period, after which new platform acquisitions are usually restricted and management fees often step down from committed capital to invested cost, net invested capital or another reduced base. Many limited partnership agreements allow one or two one-year extensions, although the approval route varies: the GP may have a limited unilateral right, or an extension may require the limited partner advisory committee (LPAC), a majority or a supermajority of investors. ILPA’s Principles recommend one-year increments, a maximum of two extensions and stronger LP approval once the contractual route is exhausted, but those recommendations are not universal contractual law.815
A useful three-part taxonomy
| Diagnostic | Healthy long-duration fund | Tail-end fund | Zombie fund |
|---|---|---|---|
| Fund age | May be old, but age is explained by asset-specific strategy | Near or beyond original term | Often repeatedly extended, with no credible end-date |
| Remaining NAV | Material and supported by operating evidence | Usually a modest residual portfolio | Can be material or small; quality and recoverability are uncertain |
| Number of assets | One or several assets receiving active attention | A few residual companies with identified routes to sale | Residual assets persist because normal exit routes have failed |
| Staffing | Named senior partners and operating resources remain accountable | Lean but sufficient team; responsibilities are explicit | Original partners have left, senior attention is diverted or institutional memory is weak |
| Fundraising status | Successor franchise intact or deliberately paused | May have raised successors; tail managed as part of normal operations | Successor fundraising failed or the franchise is impaired |
| Fee structure | Reduced and proportionate to work required | Stepped down; expenses monitored against residual NAV | Economics are weakly aligned: excessive fees, no incentive to realise, or too little revenue to resource the fund properly |
| Exit plan | Asset-level milestones, capital plan and credible buyer universe | Active sale, refinancing, wind-down or timed restructuring | Extensions substitute for a plan; the answer is repeatedly “wait for the market” |
| Governance | Transparent reporting, LPAC engagement and independent challenge | Extension approvals and costs are clearly documented | Compressed decisions, poor disclosure, conflicted pricing or weak alternatives |
| Follow-on capacity | Capital is available for accretive needs and downside protection | Reserves match the remaining plan | Little equity remains; the company must self-fund or accept expensive capital |
| Principal LP risk | Execution risk on a deliberate longer hold | Delay and residual-value risk | Capital remains trapped while organisational capacity and strategic options deteriorate |
This distinction also prevents an easy error. Some of the longest-held private-equity assets are the strongest. High-quality companies may be transferred into a continuation vehicle because the GP and new investors expect further growth. Conversely, a fund with only $20 million of residual NAV can be deeply dysfunctional if nobody is willing to fund, staff or price the remaining assets. The relevant question is not simply how old is the fund? It is what institutional machinery remains capable of converting the reported value into cash?
03 How the exit problem became a fund problem
The standard explanation begins with interest rates. It is incomplete. Higher borrowing costs widened the valuation gap between sellers anchored to old marks and buyers underwriting lower leverage and more expensive debt. But two funds exposed to the same rate environment can have opposite outcomes. One exits because its company grew earnings, reduced leverage and created strategic scarcity. The other remains stuck because the original underwriting depended on multiple expansion, cheap refinancing or growth that never arrived.
Many assets bought in 2020 and 2021 entered private ownership at high valuations, often with capital structures built for near-zero rates. Delayed exits became especially painful where EBITDA growth slowed, refinancing consumed cash, add-on acquisitions became harder to finance, or the sector itself changed. A sale at today’s market-clearing multiple may still be possible; it may simply reveal a return too weak to support the fund’s stated mark, carried-interest expectations or next fundraising story.
The industry-wide data reflect this divergence. McKinsey estimated that more than 16,000 companies globally had been held for over four years at the end of 2025, representing 52% of buyout-backed inventory. It also found that 2015–2017 vintages were producing roughly 2% IRRs, while newer vintages showed stronger but largely unrealised returns. Bain estimated that distributions had remained below 15% of NAV for four consecutive years and that the average asset exited after roughly seven years. Its historical analysis found that buyout IRR tended to stagnate around year seven and decline thereafter.34
Those findings do not prove that every old mark is wrong. Bain’s 2026 midyear work, drawing on MSCI data, noted that more than three-quarters of global buyout assets exited from 2021 to 2025 above their penultimate valuation. The lesson is narrower: a mark can be defensible while the route and timing of realisation remain uncertain. Valuation accuracy and liquidity are related, but they are not the same test.16
The four underwriting gaps
Bain’s 2026 report framed the changed return equation with an illustrative comparison: where a 2015-style deal might have reached a 2.5x multiple with around 5% annual EBITDA growth, a current deal may require growth closer to 10–12% when leverage is lower, financing is costlier and multiple expansion is absent. The exact assumptions are illustrative rather than a universal forecast, but the direction is useful. An old asset cannot be rescued merely by adding calendar years; the economic burden placed on operations increases.4
04 The economics of the tail
Private-equity economics are designed around a portfolio, not an indefinite collection of residual companies. During the investment period, management fees fund sourcing, execution and a broad team. As assets are sold, the fee basis commonly steps down, often from commitments to invested cost or another reduced measure. That protects LPs from paying full fees on realised capital, but it creates a new problem: a fund can become too small to support the senior resources needed to solve its hardest remaining assets.
Some costs fall with NAV. Many do not. Audits, tax filings, administration, legal entities, valuations, LP reporting, board obligations, insurance and regulatory work continue even when only two companies remain. A $1 million annual cost base is immaterial against a $2 billion portfolio and painful against $20 million of residual NAV. The cost per asset rises precisely as the remaining situations become more complex.
| Economic item | Typical position after investment period | Why it matters in the tail | Potential misalignment |
|---|---|---|---|
| Management fee | Often steps down to invested cost, net invested capital or another reduced base; exact LPA terms vary | May still fund necessary oversight, but revenue can become disproportionate or insufficient | The GP may be paid to wait, or may under-resource the fund because fees no longer cover senior attention |
| Fund expenses | Audit, administration, legal, tax, reporting and valuation continue | Fixed costs become a larger percentage of residual NAV | LPs bear an ongoing drag even if no transaction occurs |
| Transaction fees | Advisers, lenders, fairness opinions and sale costs arise only when a solution is attempted | Structured exits can be expensive relative to a small residual portfolio | Costs may be allocated differently among selling, rolling and incoming investors |
| Carried interest | Depends on waterfall, realised performance, hurdle and prior distributions | Carry may be out of the money in the old fund, reducing motivation | A continuation vehicle can create a fresh carry pool before the original fund has fully resolved |
| Clawback exposure | Early carry may need to be returned if final fund performance falls below entitlement | Realising weak tail assets can crystallise an obligation | Delay can postpone final reconciliation, although it does not eliminate economic loss |
| GP commitment | The GP retains a proportional economic interest | A small remaining commitment may provide limited alignment against reputational or fee incentives | Nominal exposure may be small relative to the GP’s franchise economics |
| Reserves | Remaining uncalled capital or recycled proceeds may be restricted | Determines whether the fund can defend value through follow-ons, capex or restructuring | An asset can be marked at a high value while lacking capital to execute the plan supporting that value |
| Fund-level financing | NAV facilities or preferred equity may fund distributions, follow-ons or expenses | Adds cost and seniority above the residual equity | Cash arrives sooner, but downside is concentrated in the equity left behind |
| Staff retention | Original deal partners and operating executives may have moved to newer funds or left | Institutional memory and accountability can erode | The people deciding to extend may not be those who originally underwrote the asset |
This is why the fee debate is more complicated than the claim that every GP keeps old funds alive for management fees. In some cases, the fees are indeed economically attractive relative to the effort required. In others, a stepped-down fee is too small to retain the original team, and the remaining assets are delegated to junior professionals or a thin portfolio-management function. Both outcomes can damage LPs. Excess economics can encourage delay; inadequate economics can create neglect.
Organisational decay is not visible in NAV
A valuation model captures revenue, margins, multiples and debt. It does not directly capture whether the partner who negotiated the acquisition has left, whether the operating team is focused on a new flagship fund, or whether the manager failed to raise a successor vehicle and is losing employees. Yet those factors affect the probability of achieving the modelled exit.
The remaining companies may also require more rather than less work. Underperformers need restructurings, lender negotiations and management changes. Better assets may need large add-on acquisitions or international expansion. If the fund cannot provide follow-on equity, it may have to accept dilution, expensive preferred capital or a defensive sale. The stated NAV can remain stable while the organisation’s capacity to realise that NAV declines.
For the GP, the incentives pull in several directions. Selling ends fees and may expose a weak multiple, but it releases management time and helps DPI. Extending preserves optionality, but prolongs fundraising questions. Writing down an asset may be economically correct, but can damage the track record used with new LPs. A continuation vehicle can retain a promising asset and create liquidity, but it introduces a new transaction in which the manager influences both sides. There is no single dominant incentive; the conflict comes from the GP controlling a process whose outcomes distribute costs and benefits differently.
05 Capital is trapped, but costs keep moving
For an LP, the most visible consequence is delayed cash. The deeper cost is that the original allocation decision remains active. Capital that was expected to return cannot be committed to a new vintage, used to rebalance the portfolio or meet liabilities. Cash-flow forecasts become less reliable because old funds distribute more slowly than standard models assume. MSCI’s work specifically warns that models forcing liquidation at an expected end-date can overpredict distributions from ageing buyout and venture portfolios.2
McKinsey measured private-equity distributions at only 6% of AUM in the twelve months to June 2025, compared with a 2015–2019 average of 16%. Its five-year rolling distribution measure also reached the lowest level in the series. That affects more than cash management. LPs commonly set allocation bands based on NAV. When distributions slow while marks remain high, the private-equity allocation can stay above target even without new commitments, limiting access to stronger current managers.3
Why a $20 million residual position can still be expensive
For a large pension plan, $20 million may be immaterial to total assets. It is not administratively invisible. The position can still require quarterly reconciliation, valuation review, audit support, capital-call monitoring, tax reporting, LPAC votes, extension analysis and internal investment-committee papers. A continuation-fund election may require an adviser, a conflict review and a decision between selling at a discount or rolling into a new vehicle. The governance cost is weakly related to the position’s size.
There is also a relationship cost. An LP may dislike an extension but still want access to the manager’s next flagship fund. It may accept a weak status quo to avoid damaging a broader partnership. Conversely, an LP with a hard liquidity need may sell its fund interest in the secondary market at a discount even if it believes the underlying assets are sound. The buyer is compensated for uncertainty, duration, unfunded commitments and the work of managing a position the seller no longer wants.
Insurance companies and pension funds face the sharpest mismatch when distributions are needed to meet policyholder or beneficiary obligations. Other LPs may have more flexibility, but the opportunity cost remains. A dollar held in a weak 2016-vintage fund is a dollar unavailable for a 2026 manager, co-investment or public-market opportunity. The loss is not captured by comparing today’s NAV with yesterday’s NAV. It sits in the alternative the LP could not fund.
06 What happens to the companies inside
Most commentary treats ageing funds as a dispute between GPs and LPs. The portfolio company is where the economic consequences ultimately land. A trophy asset in a well-funded continuation vehicle can receive new capital, retain its management team and pursue a longer plan. A weaker company inside an under-resourced tail-end fund may face the opposite: constrained investment, delayed decisions and a shareholder whose main objective has shifted from building value to finding a defensible exit.
| Company issue | Well-supported long hold | Under-resourced ageing fund | Who bears the risk |
|---|---|---|---|
| Follow-on equity | Capital remains available for growth, restructuring and downside protection | Reserves are exhausted; new money may be expensive or dilutive | Existing equity, management and creditors |
| Add-on acquisitions | GP can fund and execute a coherent consolidation strategy | Competing buyers move faster; leverage capacity is limited | Company loses strategic options and scale benefits |
| Refinancing | Strong sponsor support improves lender confidence | Maturity extension may require higher pricing, tighter covenants or fresh equity | Free cash flow and creditor recoveries |
| Management incentives | Equity plan is refreshed for a longer hold | Options become stale, underwater or too distant to retain executives | Management team and operating continuity |
| Board attention | Senior deal partner remains accountable | Asset is delegated while senior partners focus on newer funds | Strategic decision quality |
| Long-duration investment | Capex and product investment fit a credible extended thesis | Projects are deferred because payback falls beyond the expected sale | Employees, customers and long-term competitiveness |
| Exit preparation | Systems, reporting and leadership are built for a defined buyer universe | Repeated aborted processes distract management and expose information | Company morale and commercial momentum |
| Downturn resilience | Shareholder can inject capital or amend strategy | The fund may be unable or unwilling to defend its position | Employees, suppliers, lenders and minority shareholders |
The portfolio company also experiences time differently from the fund. A founder or chief executive may have agreed to a four-year incentive plan and remained for eight. Employees may hear repeatedly that a sale is twelve months away. A new acquisition may make strategic sense but push the exit further out. The company can become trapped between a sponsor that needs liquidity and an operating plan that requires patience.
Dividend recapitalisations are sometimes used to return capital while retaining ownership. They can be sensible when leverage is conservative and cash flows are durable. In an ageing fund, however, a recap can shift risk from the equity holder to the company and its lenders. The LP receives cash, but the operating business carries more debt. The same distinction applies to asset-level refinancing: cash has been extracted, not necessarily created.
Creditors and employees therefore belong in the analysis. A NAV loan sits above the fund’s equity interests, while operating-company debt remains below. A preferred-equity provider may receive priority distributions. If the eventual exit disappoints, the remaining common equity absorbs the compression. At company level, reduced investment or higher leverage can affect resilience long before the fund formally recognises a loss.
07 Eighteen ways to end a fund
Ageing funds do not have one exit route. They have a toolkit. The analytical mistake is to classify every tool as “liquidity” without identifying what has actually happened. A strategic sale resolves the underlying private asset. An LP-led secondary transfers the fund interest to another investor. A continuation vehicle pays selling LPs but keeps the company private. A NAV loan borrows against the portfolio. An extension changes the clock. These outcomes are economically different.
Real exits
Resolve1. Strategic sale 2. Sponsor-to-sponsor sale 3. IPO. Ownership changes or becomes public, producing asset-level price discovery and cash.
Secondary transfers
Transfer4. LP-led secondary sale 5. GP-led continuation vehicle 6. Tender offer 7. Strip or portfolio sale. The seller exits, but another private investor inherits duration.
Financed liquidity
Borrow8. NAV financing 9. Preferred equity 10. Dividend recapitalisation 11. Asset-level refinancing. Cash is accelerated by adding senior claims or leverage.
Governance repair
Re-align12. Simple extension 13. Incentive reset 14. Management-fee step-down 15. GP replacement 16. Specialist tail-end manager. Control and economics are changed.
Closure
Conclude17. Managed liquidation 18. Write-down or wind-up. Value is realised, distributed in kind, sold under constraint or formally recognised as impaired.
The classification test
AskWho receives cash? Who still bears the risk? Who sets the price? Does leverage increase? Does the GP retain the asset? What happens if exits remain closed for three more years?
| Mechanism | Cash to existing LPs | New leverage | Conflict intensity | GP keeps asset? | Economic category | Appropriate use | Major failure mode |
|---|---|---|---|---|---|---|---|
| Strategic sale | High, after debt and costs | No fund-level leverage | Low to medium | No | Resolve | Strategic buyer can pay for synergies | Price gap forces a loss versus mark |
| Sponsor-to-sponsor sale | High | New buyer usually releverages | Low to medium | No | Resolve | Asset still has a private-equity value-creation runway | Financing markets or return requirements constrain bids |
| IPO | Partial at first; lock-ups delay full cash | Depends on issuer | Medium | Temporarily | Resolve gradually | Large, public-market-ready company | Market volatility, discount and post-listing overhang |
| Simple fund-life extension | None immediately | No, unless paired with financing | Medium | Yes | Postpone | Specific milestones can be reached within a defined period | Extension becomes a substitute for strategy |
| LP-led secondary sale | High for selling LP only | Buyer may finance purchase | Medium | Yes, through same fund | Transfer | Individual LP needs liquidity or rebalancing | Discount crystallises duration and information risk |
| Continuation vehicle | High for sellers; none for rollers | Possible at vehicle or asset level | High | Yes | Transfer / reset | Good asset needs time and fresh capital | Weak price discovery, coerced election, fee/carry reset |
| Tender offer | For LPs electing to sell | Depends on buyer structure | Medium to high | Usually yes | Transfer | Broad liquidity option without moving specific assets | Insufficient participation or unattractive pricing |
| Strip / portfolio sale | Moderate to high | Depends on buyer | Medium | Partly or no | Transfer / resolve | Residual assets are too small or mixed for individual processes | Portfolio discount penalises stronger assets |
| NAV financing | Immediate distribution or follow-on funding | Yes, above portfolio equity | Medium to high | Yes | Borrow | High-confidence exits, diversified collateral or temporary timing gap | PIK interest compounds while exits remain delayed |
| Preferred equity | Immediate capital, often with tailored priority | Economically senior even if not debt | High | Yes | Structure | Fund needs flexible capital and can support a preferred return | Common equity loses most downside protection |
| Dividend recapitalisation | Cash distributed from company borrowing | Yes, at company level | Medium | Yes | Borrow | Stable cash-generative asset with conservative leverage | Operating resilience is weakened to manufacture DPI |
| Asset-level refinancing | Potential partial cash | Yes or extends existing debt | Low to medium | Yes | Borrow / defer | Refinancing removes a near-term maturity wall | Higher debt service delays investment and exit readiness |
| Incentive reset | None immediately | No | High, requires negotiation | Yes | Re-align | Old carry is out of the money and team needs a reason to finish | LPs grant new upside without enough performance conditions |
| Management-fee step-down | Preserves NAV rather than creating cash | No | Medium | Yes | Re-align | Costs are excessive relative to remaining workload | Fee cut worsens under-resourcing if no service standard is agreed |
| GP replacement | Not immediately | No | Very high | No, control changes | Re-govern | Manager is incapable, conflicted or no longer functioning | Consent thresholds, litigation, information transfer and disruption |
| Specialist tail-end manager | Usually later through managed realisation | Optional | Medium to high | Control may transfer or be delegated | Repair | Residual portfolio needs dedicated restructuring and exit expertise | New manager economics consume value or incentives favour speed over price |
| Managed liquidation | Progressive | Usually reduced | Medium | Temporarily | Resolve | Orderly sale is preferable to indefinite operation | Forced timing or weak execution destroys recoverable value |
| Write-down / wind-up | Low or none | No new leverage | Low economically, high reputationally | No after closure | Recognise | Further time and capital have negative expected value | Decision is delayed until remaining value has deteriorated further |
The secondaries market has become large enough to absorb more of these decisions. Lazard estimated $233 billion of global secondary transaction volume in 2025, split almost evenly between $116 billion of GP-led deals and $117 billion of LP-led transactions. That estimate measures annual transaction volume, not the outstanding stock of ageing assets, and Lazard is an adviser in the market. It nevertheless shows that transferring duration has become a mainstream capital-market function rather than a niche clean-up tool.5
Financed liquidity requires the same discipline. ILPA’s NAV-facility guidance notes that fund documents have not always addressed these loans explicitly and that LP transparency can be limited. A facility can sensibly bridge a known exit, protect a company or fund an accretive follow-on. It becomes more questionable when it is used to create distributions without a reliable repayment path. That distinction resembles the liquidity mismatch discussed in Private Credit’s Liquidity Illusion: a claim can be made more liquid for one investor by shifting timing and seniority risk elsewhere.9
08 Continuation vehicle or conflict vehicle?
A continuation vehicle can solve a real problem. A strong company may need four more years than the original fund can provide. Existing LPs may reasonably want cash, while other LPs and new secondary investors want seasoned exposure. Fresh capital can finance acquisitions or growth. Forcing a sale into a poor market may be worse for every investor than transferring the asset into a new vehicle with a new term.
The conflict is inherent because the GP influences both sides. It is selling an asset out of one fund while continuing to manage it in another. The transaction price affects selling LPs, rolling LPs, the new vehicle’s return and the GP’s economics. A new management-fee period may begin. Carried interest may reset. Transaction expenses must be allocated. The GP may ask existing LPs to decide on compressed timelines using information and advisers selected within a GP-controlled process.
ILPA’s 2023 guidance emphasised early LP engagement, a clear commercial rationale, meaningful LPAC involvement and a genuine status quo alternative. In January 2026, it introduced a standard disclosure template intended to consolidate key information for sell-or-roll decisions. Its draft updated guidance, released on 24 June 2026 and still open for comment at the time of writing, places greater emphasis on process integrity, pricing validation, conflicts and election options. The draft status matters: it is a proposed market standard, not a binding rule.7
Regulation in the United States is also easy to misstate. The SEC’s 2023 private-fund adviser rules included requirements around adviser-led secondaries, but the US Court of Appeals for the Fifth Circuit vacated the rules in June 2024. Those specific provisions are therefore not in effect. Separately, Reuters reported in June 2026 that SEC enforcement staff were examining certain continuation-vehicle practices, including valuation, conflicts and disclosure. An inquiry is not a finding of misconduct, and it may not lead to an enforcement action.1112
The UK Financial Conduct Authority’s 2025 review of private-market valuations reached a broader point: firms should identify and document conflicts that arise when valuations affect secured borrowing, asset transfers, marketing or investor transactions. Third-party valuation advisers can improve governance, but the FCA also warned that independence must be assessed rather than assumed. A fairness opinion answers a bounded question; it does not convert an illiquid, GP-influenced process into a perfectly competitive market.10
Three kinds of continuation transaction
| Type | Evidence | Economic reading |
|---|---|---|
| High-quality continuation | Strong asset, credible growth plan, competitive price test, meaningful GP rollover and fresh commitment, real sell/roll choice, proportionate fees | Transfers ownership and resets duration because more time has positive expected value |
| Defensive extension | Asset is saleable only at a material discount; process provides liquidity but relies on market recovery more than a specific operating plan | May preserve optionality, but investors are primarily underwriting a delayed exit |
| Conflicted delay | Weak price discovery, no attractive status quo, compressed election, fee/carry reset and limited new GP capital | Moves the asset and refreshes economics without clearly improving the probability of resolution |
Recent academic working papers support a balanced interpretation. Research by Victoria Ivashina and co-authors models continuation vehicles as potentially efficient for high-potential assets while also allowing the intermediary to earn rents because of information asymmetry. A separate working paper by Leon Luepertz and co-authors finds that continuation vehicles are frequently used by large, established GPs and often contain strong assets, while later-life and multi-asset transactions can display larger discounts to reported NAV. These are working papers rather than settled empirical law, but they weaken both simplistic claims: that every continuation vehicle is a disguised failure, or that every one represents a trophy asset unfairly constrained by an old fund.1314
09 A zombie-fund autopsy
The following model is illustrative. It is not intended to represent a market average. Its purpose is to show how four apparently reasonable solutions allocate cash, time and risk differently.
The model assumes no existing fund-level debt, a 1.0% management fee on remaining invested cost, annual fund expenses of $1.20 million, a 2% GP interest in residual NAV and no current carried-interest entitlement under an assumed whole-fund 8% hurdle. All transaction fees, pricing discounts, financing terms and growth rates below are assumptions.
Immediate sale
The remaining companies are sold together at 82% of reported NAV. Exit costs equal 2% of gross proceeds.
Three-year extension
Assets grow 8% annually, tail costs continue and the portfolio is sold at the end of year 14 with 2% exit costs.
Continuation vehicle
The portfolio transfers at 92% of NAV. Transaction costs are 3%; 70% of LP interests sell and 30% roll.
NAV loan
The fund borrows $45 million at 12% PIK for three years with a 2% upfront fee and distributes the net proceeds.
Scenario 1 — crystallise the discount
The fund recognises a $35.4 million shortfall versus reported NAV after transaction costs. The outcome is unattractive but final: fees stop, the LP receives cash and can redeploy it. The relevant comparison for every alternative is not $180 million of accounting NAV received today; it is the $144.6 million that could actually be realised today.
Scenario 2 — wait, but define the hurdle
The extension wins in this case, but not because time is free. It wins because avoiding an 18% immediate-sale discount allows the fund to recover value while the assets compound. The threshold depends on the comparison being made:
| Three-year objective | Required gross exit value | Required annual asset growth | Interpretation |
|---|---|---|---|
| Return today’s $180m reported NAV in nominal cash | $191.5m | 2.1% | Covers tail costs and 2% exit cost, but gives LP no return for waiting |
| Beat an immediate $144.6m sale at a 10% opportunity cost | $204.3m | 4.3% | Creates more present value than selling now at the assumed discount |
| Earn 10% annually on the full $180m reported NAV | $252.3m | 11.9% | Treats current NAV as fully realisable capital that deserves a market return |
| Annual asset growth | Gross exit in year 3 | Net cash after tail & exit costs | PV at 10% | Waiting IRR vs immediate sale |
|---|---|---|---|---|
| 0% | $180.0m | $168.8m | $126.8m | 5.3% |
| 4% | $202.5m | $190.8m | $143.3m | 9.7% |
| 8% | $226.7m | $214.6m | $161.2m | 14.1% |
| 12% | $252.9m | $240.2m | $180.5m | 18.4% |
The zero-growth case is instructive. The fund would still receive more nominal cash in three years than from a forced sale today because the immediate transaction assumes an 18% discount. Yet its present value at a 10% required return is only $126.8 million, below the immediate $144.6 million. Avoiding a discount is not enough; the recovery must compensate for time.
Scenario 3 — split the investor base
Assume the new vehicle has a four-year term, charges a 1.5% management fee on transferred equity and provides 15% carry above an 8% hurdle. The GP rolls its proportional old-fund interest and commits $2 million of fresh capital; new investors provide an additional $30 million for follow-ons. Those terms are illustrative.
The old fund has largely solved its ownership problem. Selling LPs receive cash. Rolling LPs preserve exposure at the transaction price. New investors obtain a seasoned portfolio and a defined term. The assets, however, remain privately held. The transaction has transferred and repriced duration rather than produced an external exit. Whether that is value creation or delay depends on the quality of the assets, the price test and the new plan.
Scenario 4 — distribute cash by adding seniority
The loan improves current DPI but produces less present value than the immediate sale under the flat-value assumption. The lender is repaid before LP equity, and PIK interest compounds if exits remain delayed. The facility becomes attractive only if the portfolio grows enough, a near-term sale is highly probable or the borrowed capital prevents a larger loss. It does not turn an unresolved asset into a realised one.
10 The maturity wall will sort managers
The $348.5 billion held in US private-equity funds aged ten years or more is the visible stock. The $512.7 billion in the seven-to-nine-year bucket is the forward pressure. Neither number proves that private equity is collapsing, and neither should be labelled entirely zombie capital. They do show that fund maturity is becoming a recurring portfolio-management problem rather than an exceptional clean-up exercise.
The distinction that matters is between time with a plan and time as the plan. A healthy long-duration fund can explain what remains to be done, who is responsible, how it will be funded, why the expected value exceeds a sale today and what governance protects LPs if the thesis fails. A zombie fund relies on extension as the default response while resources, incentives and options deteriorate.
The best managers will not necessarily be those that liquidate every asset fastest. They will be those that recognise which assets deserve more time, which should be sold at a disappointing but defensible price, and which require a different owner or specialist manager. They will reduce fees when the workload falls, add incentives when the old carry no longer works, bring independent price discovery into conflicted transactions and avoid using leverage to disguise the absence of an exit.
LPs should therefore ask more precise questions than “when will distributions return?” For every old fund, they need the residual fee base, annual expense burden, remaining reserves, named senior staff, debt and preferred claims, extension rights, status of the successor franchise, company-level capital needs and a decision tree for each asset. For every liquidity proposal, they should ask who receives cash, who retains risk, who sets the price and whether the mechanism resolves, transfers, finances or merely postpones the underlying problem.
Private equity was built around finite-life vehicles. The maturity wall tests whether that finite life still disciplines decision-making once the easy exits are gone. Where the discipline survives, a longer hold can preserve value. Where it does not, reported NAV becomes less important than the fund’s declining ability to turn that NAV into cash.
11 Sources & methodology
- Mark Maurer, The Wall Street Journal, “Private-Equity Assets Stuck in ‘Zombie Funds’ Are at a Record High,” 21 July 2026. Supports the PitchBook estimates of $348.5bn in US PE funds aged 10+, $512.7bn in funds aged 7–9 and the Preqin estimate of $3.91tn of unsold North American portfolio-company value as of September 2025. Source.
- Daniel Hadley, MSCI, “Night of the Living Fund: The Rise of Zombie Private Equity,” 12 May 2025; data through Q4 2024. Supports average liquidation ages, late-life NAV levels and declining distribution rates. MSCI notes that definitions of “zombie” vary across its own research. Source.
- McKinsey & Company, “Private equity: Clearer view, tougher terrain,” Global Private Equity Report 2026, 10 February 2026. Supports distribution-to-AUM figures, global ageing-company inventory, holding-period observations and vintage-return analysis. Source.
- Bain & Company, “Private Equity Outlook 2026: Gaining Traction,” Global Private Equity Report 2026. Supports the four-year record of distributions below 15% of NAV, the roughly seven-year average holding period at exit, the 32,000-company/$3.8tn global buyout inventory estimate, continuation-vehicle share and the historical IRR-by-hold-period analysis. Source.
- Lazard, “Lazard 2025 Secondary Market Report,” 23 February 2026. Supports Lazard’s estimate of $233bn of 2025 secondary volume, split between $116bn GP-led and $117bn LP-led. Lazard is an active adviser in this market and its estimates may differ from other intermediaries because of methodology and transaction coverage. Source.
- Coller Capital, Global Private Capital Barometer, 44th edition, Summer 2026. Supports the survey finding that 54% of respondents expected more zombie funds in their portfolios over two years and the preference for management-fee step-downs. Coller’s survey defined a zombie fund specifically as one prolonged to maximise management fees; Coller is also a secondaries investor. Source.
- Institutional Limited Partners Association, continuation-vehicle materials, 2023–2026. Includes the 2023 continuation-fund guidance, the Continuation Fund Disclosure Template published 27 January 2026 and the draft updated CV guidance released 24 June 2026. The 2026 guidance remained a draft at the article date. Guidance hub; disclosure template; 2026 draft.
- Institutional Limited Partners Association, ILPA Principles 3.0, 2019. Used for best-practice recommendations on management-fee step-downs, one-year extensions and LP approvals. These are industry recommendations, not universal LPA terms. Source.
- Institutional Limited Partners Association, “Guidance on NAV-Based Facilities,” 2024. Supports discussion of NAV-facility uses, limited LPA specificity, transparency and governance questions. Source.
- UK Financial Conduct Authority, “Private market valuation practices,” 5 March 2025. Supports discussion of valuation conflicts, asset transfers, secured borrowing, documentation and the qualified role of third-party valuation advisers. Source.
- US Securities and Exchange Commission, “Announcement Regarding the Private Fund Advisers Rules,” 2024. Confirms that the Fifth Circuit vacated the SEC’s 2023 private-fund adviser rules, including adviser-led secondaries provisions. Source.
- Chris Prentice, Dawn Kopecki and Isla Binnie, Reuters, “US SEC probes popular type of private equity fund as it steps up industry scrutiny,” 24 June 2026. Supports the carefully qualified description of reported SEC scrutiny of certain continuation-vehicle practices. An investigation is not proof of misconduct. Source.
- Victoria Ivashina et al., “Private Equity Continuation Vehicles: A Model of Strategic Intermediation,” working paper, 2025. Used for the conceptual balance between efficient duration extension and intermediary rents under information asymmetry. Working-paper findings are not treated as settled empirical fact. Source.
- Leon Luepertz et al., “The Rise of Continuation Vehicles in Private Equity,” working paper, 2025. Used for evidence on sponsor characteristics, asset quality and differences between single-asset, multi-asset and later-life transactions. Source.
- Alter Domus, “Private equity fund structure”; McDermott Will & Emery, “Family Office Private Equity Funds,” 11 March 2026. Used as practitioner references for common fund terms, investment periods, fee bases, extension approvals, waterfalls and expense provisions. Exact terms remain LPA-specific. Alter Domus; McDermott.
- Bain & Company, Private Equity Midyear Report 2026. Used for the balancing observation, based on MSCI data, that more than three-quarters of global buyout exits from 2021–2025 occurred above the asset’s penultimate reported valuation. Source.