Building a Private Allocation

An investor decides to put twenty percent of the portfolio into private markets, signs the commitments, and figures the job is done. A year later the private allocation is nowhere near twenty percent, the capital calls are landing on someone else's schedule, and a market drop has shoved the whole plan into a corner nobody warned about. The hard part of private markets was never picking good funds. It is the mechanics of building the allocation, and those mechanics run on their own logic, one that has embarrassed far more sophisticated investors than most people realize.

The traps are structural rather than obscure, and they are the reason great endowments got forced to sell exactly when they should have been buying. Understanding them before you commit is worth more than any manager selection, because a good manager cannot save a portfolio built to break at the wrong moment.

You Commit, You Don't Allocate

The first correction is to the language. You do not allocate money to a private fund the way you buy a stock. You make a commitment, a promise to fund capital over time, and the fund draws it down as it finds deals, over three, four, or five years. Meanwhile your earlier funds are returning cash to you on their own timeline, unpredictably. At any given moment your actual invested capital is a moving target that rarely equals your target percentage.

So the twenty percent you decided on is an aspiration, not a state. Early on you are underinvested and waiting. Later, if you stop committing, you drift back toward zero as distributions come home. Keeping a private allocation near target takes a continuous program of commitments, calibrated to how capital actually moves in and out. Get that flow wrong and the trouble starts there.