Vintage year in private equity: the key metric for fund selectors
18 AUG, 2026
By RankiaPro
The vintage year is not a birth date, it is the variable that determines against which universe of comparison a private equity fund is measured, and by extension how much its IRR really is worth.
For a fund selector the question is not whether the vintage year counts (data from entities like Cambridge Associates and Preqin confirm this for decades), but how much weight to give it compared to manager selection in the construction of a portfolio. The answer, supported by the numbers, is less intuitive than it seems.
What exactly is a fund's vintage year
Cambridge Associates defines the vintage year as the year of the fund's first cash flow, i.e. the date of the first capital call from the LPs.
But not all data providers share this convention: other databases use the year of legal inception of the vehicle, which can precede the first actual drawdown by one or two years. The difference is not cosmetic: two "vintage 2019" funds according to different definitions may have started investing in different market phases, with direct consequences on the entry multiples.
For those who do due diligence, the first practical check is to verify which convention the data source uses before comparing a fund with its cohort benchmark.
Why the vintage year explains a large part of the dispersion of returns
The vintage year matters because it conditions the macro and pricing context in which the fund invests and divests. The post-crisis historical data clearly show this: according to DealEdge data cited by Advisor Perspectives (2025), the median IRR of buyout deals was 11% in 2000, before the tech bubble burst, then rose to 25%, 40% and 47% in the three following years. The same pattern was repeated after the global financial crisis: median IRR at 9% in 2007-2008, then 24%, 18% and 19% in the three following years.
This explains why post-correction vintages are often defined by institutional LPs as "opportunity vintages": compressed entry multiples and less competition on the dealflow tend to translate into returns above the long-term average.
But the vintage year alone is not the dominant factor. A study by Commonfund (2025) on cohort 2000-2020 shows that, even assuming perfect timing in avoiding the three worst vintages for buyout and growth equity, the performance improvement would have been marginal. Manager selection remains the most significant lever: in venture capital the spread between top and bottom quartile exceeds 30 percentage points in most vintages (Cambridge Associates, 2025), about 3 times wider than observed in buyout, where the median premium over public markets has compressed from 200-400 historical bps to 100-200 bps in the last five-year period (Cambridge Associates, 2025).
Vintage year and J-curve: the effect on cash flows
Each vintage goes through an initial phase of J-curve: in the early years capital calls exceed distributions, temporarily compressing the reported NAV before the fund enters the harvesting phase. For a portfolio composed of a single vintage, this means prolonged cash drag and a return profile visible only 5-7 years away.
Secondary strategies have gained share among institutional allocators precisely to mitigate this effect: access to shorter J-curves, with distributions typically starting 1-3 years earlier than a primary commitment, discounts on NAV in the order of 5-20% and immediate diversification across multiple vintages, strategies and GPs in a single operation (PitchBook, 2025).
How to build a pacing program for vintage year
The operational response to the dispersion between cohorts is not to try to predict the best vintage, an exercise that institutional practitioners themselves consider unreliable over multi-year horizons, but to build a commitment pacing program: allocate capital regularly over several subsequent vintages, replicating in logic a dollar-cost-averaging applied to private markets (CAIS, 2025).
This approach reduces the risk of overexposure to a single market cycle and makes the planning of capital calls manageable, which remain by nature irregular and difficult to predict accurately. The flip side is the discipline required: too conservative pacing generates structural under-allocation relative to the target, while too aggressive pacing exposes the portfolio to liquidity risks in stress phases.
Why the 2022-2023 vintages are being watched with particular attention
The 2022-2023 interest rate hike cycle has produced two significant effects for fund selectors: a slowdown in distributions to LPs, which has shifted attention from TVPI to DPI as a conversation metric with GPs during re-up, and a compression of comparable entry multiples, in logic if not in magnitude, to what was observed after 2000 and 2008. The median US DPI for 2012-2015 buyout vintages is between 1.4x and 1.7x in the third quarter of 2024 (Cambridge Associates, 2025); LPs tend to expect at least 1.5x DPI within the eighth year of the fund's life for buyout strategies.
For this reason, several institutional allocators treat the 2022-2023 vintages as potentially favorable cohorts on a historical basis, albeit with the caveat that confirmation will only come when these funds enter the harvesting phase, not before.
