The private markets pitch is usually written in the language of return. The number that decides whether an investor sleeps at night is cash flow.
Capital is committed on day one and drawn over years. Distributions arrive when the manager can sell, and in the current cycle that timetable has slipped. UK exit activity picked up in the first half of 2026, though sponsor-to-sponsor sales did most of the work and continuation vehicles are now embedded in how liquidity gets manufactured when a clean sale is unavailable.
The practical risk is familiar. Several commitments call capital at the same time. Distributions from earlier vintages stay quiet. A portfolio that looks well diversified on paper starts to feel tight in the current account.
A useful test is unglamorous. Take the existing commitments, assume slower distributions than the manager’s base case, and see what the client would have to sell if a large opportunity appeared next year. The answer decides how much private exposure the portfolio can carry with a straight face.
There is a knock-on effect elsewhere. A client running a heavy private markets book often needs a larger cash reserve or a more liquid public-markets sleeve to keep the machine funded. That is a design choice at portfolio level, made once and revisited when circumstances change.
If existing private assets made no distributions for a sustained period, could this next commitment still be funded without disturbing the rest of the portfolio?
