Most families invest without a written investment policy. Decisions get made, capital gets allocated, and if asked to explain the reasoning, the family points at a portfolio rather than a document. The portfolio is the output. The policy is the reasoning, and without it there is no way to tell a good decision from a lucky one.
Purpose before percentages
A policy begins not with asset classes but with obligations. What does this capital have to pay for, and when? Family spending, taxes on death, a commitment to a foundation, support for a member who cannot work, a buy-out of a sibling’s shares in nine years. Each obligation has a date and a degree of certainty, and together they define the horizon far better than any risk questionnaire.
Families who do this work find the conversation changes character. Risk stops being a personality trait and becomes a question of whether the money will be there when it is needed.
Count everything
The most common error we see in family portfolios is not aggressive allocation. It is counting only the liquid part. A family whose principal asset is an operating business in one industry, whose real estate sits in the same city, and whose portfolio is then invested for growth is far more concentrated than any statement shows.
A policy should state the whole exposure—including assets no advisor manages—and set the liquid portfolio’s role in relation to it. Often that role is ballast rather than engine.
Define risk in terms the family recognises
Volatility is a convenient measure and a poor description of what families fear. More useful formulations are concrete: the largest peak-to-trough decline the family would tolerate without changing course; the number of years of spending held in assets that cannot fall; the outcome that would be unacceptable rather than merely unpleasant.
Write those down. In a bad quarter, a policy that says what the family agreed to endure is the difference between holding a plan and abandoning one.
Say who decides
A policy should name the decision-making process: who can rebalance, who must be consulted before a material change, what triggers a review, and how disagreements are settled. In multi-generational families this section prevents more damage than the allocation section.
State the constraints and the costs
Constraints belong in writing: positions that cannot be sold for tax or sentimental reasons, minimum liquidity, prohibited exposures, values-based exclusions, currency requirements for family members abroad. So do costs—management fees, embedded product costs, trading and custody—totalled in one number the family can weigh against what it is receiving.
Then review it on purpose
A policy is a living document, but not a frequently edited one. Annual review is usually right, with an out-of-cycle review triggered by events rather than markets: a liquidity event, a death, a marriage, a material change in the operating business.
The discipline is to change the policy because the family’s circumstances changed—never because the market moved and the policy became temporarily inconvenient.