From 10% to 50% of NAV in the Top Five Managers: When Does Venture Concentration Become Unacceptable?
NVCA's 2026 Yearbook provides a market-level reminder that venture capital is concentrated. The top funds can capture a large share of fundraising. Pension funds should monitor whether their own NAV has become similarly concentrated.
NVCA reported that the top 10 funds captured 32.9% of U.S. VC capital raised in 2025.
Top-Five Managers as a Share of NAV
A manager list can look diversified while half of NAV still sits with the five largest relationships.
- Top five managers50%
- All other managers50%
View allocation data and assumptions
| Portfolio segment | Share | How to read it |
|---|---|---|
| Top five managers | 50% | Largest relationships that can dominate reported venture NAV. |
| All other managers | 50% | Remaining manager relationships after the top-five exposure. |
Concentration Depends on What Sits Behind the Names
A high share of NAV in the top five managers is not automatically unacceptable. It becomes a problem when the concentration comes from the same strategy, companies, people, or marks and the institution cannot reduce it without harming future access. Ten percent may signal a very broad programme. Fifty percent may be reasonable in a focused allocation if the managers are distinct and well understood. The look-through holdings decide the real risk.
Manager NAV Is Only the First Layer
| Concentration type | What to measure | Why it matters |
|---|---|---|
| Management firm | All funds, SPVs, and co-investments from the same firm | Team and process risk may be shared |
| Company | Look-through value in the same private company | Several funds may own the same winner |
| Stage | Seed, early, or growth share of NAV | Duration and loss patterns may align |
| Vintage | Value from the same entry years | Pricing and exit markets may be common |
| Valuation source | Share of NAV based on recent rounds or models | One market reset can affect several marks |
Success Creates Concentration Too
A strong manager can grow to a large share of NAV because its companies appreciated. That is different from making an oversized commitment at entry. The institution should still decide whether to rebalance, sell a fund interest, or limit the next re-up. Reducing a winner has a cost. The decision should compare future expected return with the benefit of lower concentration.
Successor Funds Can Increase the Exposure
Re-ups often occur before older funds distribute. The LP can own several vintages from one firm at the same time. A manager-level limit should include all of them. The pacing plan should show how a proposed commitment changes current and projected manager concentration.
Questions Before Calling It Too High
- How did concentration arise? Appreciation and commitment sizing need different responses.
- What overlaps? Company, sector, stage, team, and valuation source.
- Can the institution sell without a large discount?
- What is still uncalled? Future exposure may be higher than current NAV.
- Model the full manager group.
Concentration is acceptable when it is understood, intentional, and supported by liquidity. A percentage limit should prompt analysis, not replace it.
Translate Top-Five NAV Into Dollars
In a $1 billion venture NAV portfolio, 10%, 25%, and 50% in the top five managers equals $100 million, $250 million, and $500 million.
NVCA reported 32.9% of 2025 U.S. VC fundraising went to the top 10 funds, so manager concentration is not only a portfolio-level issue.
Separate Skill From Drift
A manager that began as a 5% commitment can become 15% of venture NAV if its marks rise while other funds remain flat or are written down.
Top-Five Manager Concentration in Venture NAV
Once the top five managers approach half of NAV, manager-specific risk becomes a total-portfolio issue.
View concentration data and assumptions
| Top-five NAV share | Total venture NAV | Top-five NAV dollars | Governance implication |
|---|---|---|---|
| 10% | $1B | $100M | Broadly distributed manager exposure. |
| 25% | $1B | $250M | Requires concentration review. |
| 50% | $1B | $500M | Few managers drive portfolio outcome. |
Decide What Concentration the Plan Can Defend
Tie the analysis to plan obligations. Pension venture allocation has to work around benefit payments, board governance, consultant review, timing limits, and the wider private-markets portfolio. Stress the cash path. The harder case is weak public markets, slower distributions, and capital calls arriving together.
Success-Created Concentration Is Different From Planned Concentration
A manager can become a large share of NAV because its companies performed well. That is different from committing too much to one franchise before results were known. The first may be a sign of success; the second is an initial sizing decision. The distinction changes the response. A pension should not automatically sell or stop backing a strong manager simply to restore an even weight. It should examine look-through company overlap, unrealized value, future re-up size, and whether the concentration leaves the plan dependent on one team or valuation source.
The objective is not equal weights. It is to understand how the concentration arose, what can reduce it over time, and whether another commitment would add a new source of return or simply deepen the same exposure.
Frequently Asked Questions
Is high top-five concentration always bad?
Not always: It may reflect genuine winners, but the plan should test whether future exposure and governance are still appropriate.
Should concentration be measured by commitment or NAV?
Both: Commitments show original intent, while NAV shows what currently drives the portfolio.
Related Reading
overdiversification, manager diversification, and unrealized value.