Liquidity
Not all assets convert to cash equally. A publicly traded stock can typically be sold in seconds during market hours at a transparent price. A stake in a private equity fund, a direct investment in a private company, or a piece of commercial real estate may take months or years to sell — and the price realized may depend heavily on timing and market conditions. This spectrum from "highly liquid" to "highly illiquid" is one of the most important dimensions a family office tracks across its entire strategic asset allocation.
Liquidity matters for reasons beyond convenience. Families have ongoing spending needs — lifestyle costs, taxes, philanthropic commitments, business capital calls — that require cash at predictable intervals. If too much wealth is locked in illiquid assets, a family may be forced to sell something at the wrong time or at a discount, a situation sometimes called a "liquidity crunch." A dedicated liquidity management discipline inside the family office anticipates these needs in advance rather than scrambling when they arise.
A useful way to think about it: imagine a three-generation family with two operating businesses, a portfolio of private real estate, and a range of private equity fund commitments. On paper the family is wealthy; in cash it may have limited flexibility on short notice. Family offices commonly maintain a deliberate liquidity reserve — an illustrative example might be one to three years of expected cash needs held in highly liquid instruments — as a buffer against both planned outflows and unexpected demands. The appropriate level is specific to each family's situation and requires careful, ongoing analysis rather than a one-size-fits-all rule.