Persistent-Returns Venture Fund Rule
Invest only where demonstrated fund quality and privileged deal flow persist
- Difficulty
- Moderate
- Time to result
- ~months to results
- Steps
- 5
- Confidence
- 94%
The Persistent-Returns Venture Fund Rule begins with two empirical observations: venture outcomes are extremely skewed, and manager performance has historically persisted from one fund to the next. A small number of funds generate most of the excess return over public-market alternatives. Their earlier success improves fundraising efficiency and, more importantly, gives them first access to attractive entrepreneurs and deals, reinforcing subsequent performance. The practical decision rule is therefore selective rather than allocation-driven: invest in venture only when a manager has demonstrated persistent results, durable sourcing advantages, and a credible organization. Do not assign a fixed portfolio percentage merely because consultants recommend exposure to the category. If the genuinely superior funds are unavailable, a liquid benchmark may offer a better risk-adjusted choice than an accessible but undifferentiated venture fund.
Origin
Extracted from Masters in Business during Janeway's discussion of academic venture-capital research and the historical performance of venture funds since 1980.
Core principles
- 01Venture returns are dominated by a small number of funds
- 02Past fund performance contains useful information about subsequent funds
- 03Successful firms attract superior deal flow
- 04Broad category exposure does not guarantee excess returns
- 05Inaccessibility can signal quality in capacity-constrained funds
How to run it
- 1
Measure Historical Performance
Collect realized returns for the manager's previous funds and compare them with suitable public-market and venture benchmarks. Separate realized outcomes from paper valuations.
Pro tip Review results by vintage year so favorable market cycles do not masquerade as manager skill.
Watch out One young fund with mostly unrealized gains is weak evidence of persistence.
- 2
Test for Persistence
Determine whether strong performance recurs across successive funds rather than appearing once. Investigate the specific capabilities that could make the record repeatable.
Pro tip Look for continuity in sourcing, selection, ownership, and portfolio support.
Watch out Do not extrapolate an old track record through an untested leadership transition.
- 3
Examine Deal-Flow Advantage
Assess whether sought-after founders approach the firm early and whether the manager routinely gains access to competitive rounds. Superior access is a mechanism that can sustain performance.
Pro tip Ask founders and co-investors where the firm genuinely receives first consideration.
Watch out A famous brand without current founder preference may be living on stale reputation.
- 4
Check Capacity and Strategy Drift
Compare the new fund's size, geography, stage, and ownership targets with the strategy that produced earlier returns. Larger pools can make historic deal sizes economically irrelevant.
Pro tip Model how many successful investments are required to return the proposed fund.
Watch out Do not assume performance survives major expansion into unfamiliar markets.
- 5
Apply the Access Rule
Invest only if the manager combines persistent evidence, privileged opportunities, and strategy continuity. If those conditions are absent, reject the allocation rather than settling for category exposure.
Pro tip Treat a public index as the explicit opportunity-cost benchmark.
Watch out A mandate to invest a fixed percentage can force adverse selection.
In the wild
A pension trustee is advised to place three percent of a large portfolio into venture capital. The available managers have limited records, while established top-tier funds are closed to new investors. Applying the rule, the trustee declines weak substitutes and retains public-market exposure until a manager with persistent realized performance and credible access becomes available.
→ The pension avoids paying illiquidity and fee premiums for undifferentiated venture exposure.
Common mistakes
Buying the Asset-Class Average
The average obscures a highly skewed distribution in which a small number of funds create nearly all excess returns.
Confusing Fundraising With Skill
Easy fundraising follows success but does not itself prove that the investment capability remains intact.
Ignoring Generational Change
A firm's brand may persist after the partners and processes responsible for its strongest funds have departed.
Is it for you?
Best for
It is best for institutional allocators deciding whether a specific venture fund merits scarce portfolio capital.
Not ideal for
It is not ideal for investors who lack access to reliable fund data or top-performing capacity-constrained managers.
From the transcript
“There is what they call the academics called persistence in the returns.”
“if you can get into the venture funds that don't need your money, do it”
“if they need your money, you don't want to give it to them.”
From the episode
William Janeway on What's Needed for the Innovation Economy
William Janeway