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Zombie Funds Explained: The Hidden Risk Lurking in Aging Private Equity Portfolios

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What Are Zombie Funds?

Zombie funds are private equity or venture capital vehicles that outlive their expected lifespans — typically 7 to 10 years — but fail to produce real returns or meaningful exits. They hold on to illiquid, hard-to-value assets and continue charging management fees well past their prime.

Key traits:

  • Extended lifespan: Many last 12–15+ years.
  • No new deals: Capital is depleted or LP confidence is lost.
  • Persistent fee drag: 2% fees on stale portfolios.
  • Illiquid assets: Buyers shy away from underperforming holdings.
  • Meaningful NAV: Older VC funds still report NAVs up to 60% of committed capital.

These aren’t dormant shells. They’re still active, but with no clear direction. They drain capital, strain relationships, and jam up the secondary market.


Why Zombie Funds Exist

There’s no singular cause. Zombie funds emerge from a perfect mix of macro shifts, failed exits, and misaligned incentives.

1. Macroeconomic Factors

  • Low interest rates: Low interest rates keep weak companies alive longer than they should be.
  • Credit tightness: Banks evergreen loans to avoid write-downs, prolonging weak company lifespan.
  • Economic shocks: Crises (e.g. 2008, COVID-19) crush exit valuations, trapping assets.
  • Sectoral overcapacity: VC-backed AI and biotech firms often need longer cycles — and exits aren’t always viable.

2. Fund-Level Triggers

  • Low distributions: LPs get little back, even as funds age.
  • Exit gridlock: IPOs stall, M&A dries up, buyers disappear.
  • Fee-first incentives: GPs collecting fees may deprioritize speedy liquidation.
  • Fundraising failure: If a GP knows another vehicle isn’t coming, alignment deteriorates fast.
  • Opaque valuations: Stale or inflated NAVs delay recognition of fund deterioration.

“Even funds with near-zero returns are still reporting NAVs of 25%–60% of committed capital years after launch” – MSCI

Source: MSCI


Who Gets Burned

Limited Partners (LPs)

Institutional LPs, including pension funds and endowments, bear the brunt of zombie fund drag. Their capital gets stuck in stagnant vehicles, limiting their ability to reinvest or plan liquidity. Performance drags while management keep ticking. That’s a frustrating combo.

Disagreements also arise over whether to hold out for a future turnaround or take a discount in the secondary market. Worse, some LPs may feel pressured to accept restructuring terms that disproportionately benefit the GP.

General Partners (GPs)

Zombie funds often signal the end of the road for a GP franchise. Difficulty raising a follow-on fund is usually both a cause and symptom. Without future carry or capital, GPs face operational costs but reduced motivation. Legal, administrative, and compliance work must still be done—but with no clear upside.

Managing a zombie fund becomes reputational quicksand. Even responsible managers who want to do right by LPs may find themselves stuck between underperforming assets and skeptical investors.

Portfolio Companies

Startups or businesses backed by zombie funds end up in limbo. They struggle to raise additional rounds, especially if the fund can’t or won’t lead. VCs in zombie mode may push for early exits to return — even when that cuts long-term value.

And once word gets out that a startup’s lead investor is “zombified”, future backers get cold feet. These companies often become walking dead themselves.


Spot the Zombie Early: Symptoms to Watch

SignalImplication
Fund >12 years oldApproaching deadweight territory
NAV remains high, but no exitsTrapped capital, over-valuation risk
Fundraising haltedGP has no incentive to improve performance
Stalled follow-on investmentsPortfolio companies left unsupported
Fee collection continuesMisalignment with LPs

Early detection gives LPs time to reduce exposure or push for change — whether through secondaries, GP-led restructurings, or engagement via LPACs.


What LPs Can Do

Conduct Better Due Diligence

Don’t just look at early IRRs. Scrutinize how funds age. Check DPI ratios, use of extensions, and return activity after year 9. Ask how GPs handle tail-end assets, and whether they’ve ever waived fees on stale portfolios.

Tap the Secondaries Market

Even at a discount, selling a zombie fund interest can free up liquidity. But LPs shouldn’t rush to sell without exploring GP-led restructurings. These often offer a dual option: cash-out at today’s NAV or roll over into a new vehicle with better-aligned terms. In both scenarios, transparency is key.

Use the LPAC Effectively

Engaged LPACs can influence how extensions are handled, demand better reporting, and push for independent valuations. When zombie dynamics begin to appear, LPACs should be pressing for concrete action — not just updates.

Adjust Forecast Models

Traditional cash flow models often assume declining residual value and steady distributions in later years. But zombie funds break this pattern. LPs should use scenario models and input stress tests to account for tail-risk capital lock-up.


What GPs Can Do

If you’re managing a fund on life support, honesty and action matter.

Stop Charging Full Fees

The most obvious goodwill gesture is to stop — or at least reduce — management fees once the investment period ends. If no new deals are happening and the portfolio is static, continuing to charge 2% erodes trust. Consider fee holidays or tying fees to NAV instead of committed capital.

Seek a Secondary Restructuring

A GP-led secondary isn’t just a salvage job — it’s a chance to realign incentives. A third-party buyer can purchase some or all LP stakes, fund an extension, and give the GP carry potential with refreshed terms. This creates breathing room while giving LPs optionality. But success depends on clear disclosures, fair pricing, and LP buy-in.

Distribute or Write Off Where Necessary

Holding unrealistic NAVs delays tough decisions. If exits are unlikely, distributing portfolio company equity (where practical) or marking down assets may be necessary. LPs may prefer owning direct stakes or even equity scraps overpaying fees indefinitely on paper values.

Speak Up

Zombie funds can’t be managed through silence. GPs who acknowledge the situation — and outline a roadmap — stand a better chance of preserving LP relationships. This includes regular updates, open discussions about options, and, where needed, third-party validation.


Regulatory & Systemic Implications

Zombie funds exist in a regulatory grey area. There’s no explicit rule that says a fund must wind up by a certain year. But regulators are increasing pressure through indirect means:

  • Fee transparency: Proposed SEC reforms push for quarterly disclosures that would make fee collection on inactive portfolios more visible.
  • Valuation audits: Requirements for third-party reviews make it harder to keep stale NAVs on the books.
  • Secondary market visibility: Guidance for GP-led restructurings aims to prevent abuse while improving LP liquidity.

The broader concern is capital misallocation. When zombie funds linger, they distort performance data, crowd the ecosystem, and indirectly suppress innovation by tying up capital.


Case Examples

Austin Ventures (2008 Vintage)

This Texas-based VC firm raised nearly $1B in its tenth fund. But after the 2008 crash, exits slowed. The fund shifted focus to follow-ons only. A successor vehicle never materialized, and many LPs marked it as a write-down. It’s now a textbook example of zombification (CB Insights).

Stride VC

Once a promising European seed-stage firm, Stride’s leadership stepped away from new fundraising. Their second fund struggled with follow-ons, and capital dried up. Without a third fund or major exits, the fund slipped into a holding pattern — effectively frozen.

Biotech-Focused Funds

The biotech sector has seen a rise in “walking dead” funds. Drug development takes time, and IPO markets have been weak. Firms like Tang Capital Partners now specialize in buying and liquidating these assets to return cash to shareholders — often by acquiring failing biotechs at a discount and dismantling them (BioPharma Dive).


Conclusion

Zombie funds aren’t just statistical noise. They:

  • Lock up billions in idle capital.
  • Strain LP-GP trust.
  • Stall startups.
  • Expose cracks in fund oversight.

If you’re an LP: Stay aggressive on diligence, secondaries, and restructuring. If you’re a GP: Prioritize transparency and fast, fair resolutions over clinging to theoretical NAVs.

P.S. – Explore our Premium Resources for more valuable content and tools to help you break into the industry.

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