OCTAGON Family Office Insights

Family Offices Move One-Third of Portfolios Into Private Markets

Family offices have quietly moved close to a third of their portfolios into private markets, according to the 2026 Global Family Office Report — private equity, credit, real assets, control strategies. That's not a tactical tilt anymore. It looks like a structural decision about how multi-generational wealth gets managed going forward.

AI and infrastructure are part of why. The top private AI companies now carry a combined valuation around $1.5tn, and most of that growth isn't accessible through listed markets. Yet more than half of family offices still have no allocation to growth equity or venture. Infrastructure tells a similar story — nearly 80% have no direct exposure to assets tied to AI buildout, digitalization, or the energy transition, even as many now view infrastructure as a reliable source of inflation-linked cash flows with regulatory backstops.

The gap between what families say they want and where the money actually sits is striking.

As private assets take up more space in the portfolio, the operating model has to keep up. Family offices with over $1bn in assets now spend around $6.6m a year just to run. Dedicated investment teams, outsourced CIO arrangements, specialist due diligence, co-investment platforms — these are becoming standard, not exceptional.

The real question has shifted. It's less "which product can we access?" and more "which structure actually fits us?" What risks stay in-house. What gets outsourced. How much illiquidity the family can genuinely live with through a full cycle — not in theory, but when things get uncomfortable.

Access used to be the advantage. It isn't anymore. The edge now is time horizon, governance, and the discipline to hold the structure you chose when the pressure is on.