Liquidity tends to be treated as whatever remains after the interesting allocations have been made. That ordering is inverted. The requirement to meet spending, capital calls or unexpected needs is the one portfolio obligation that cannot be deferred, and it should be sized before anything else.
Three distinct liquidity requirements
It helps to separate them, because they have different sources and different time horizons.
- Known spending: distributions, drawdowns or obligations with dates attached.
- Committed but uncalled capital: private market commitments that will be drawn on a schedule the investor does not control.
- Contingency: the reserve that prevents forced selling when the first two coincide with a difficult market.
Where liquidity assumptions break
Liquidity is a property of market conditions as much as of an instrument. Positions that trade freely in ordinary conditions can widen materially in stress, and the moment liquidity is most needed is frequently the moment it is most expensive. Assuming that an asset can be sold at its last quoted price is an assumption, not a fact.
The practical response is to plan liquidity from sources that do not depend on market conditions holding, and to treat everything else as a portfolio holding rather than a reserve.
This note is general information about investment process. It is not investment, legal or tax advice, not a recommendation, and not an assessment of suitability for any particular investor. Investment involves risk, including the possible loss of capital.