UBS surveyed 87 individuals commanding ten-figure fortunes. Nearly a third—30%—are planning to reduce contributions to private equity vehicles over the next twelve months. The figure arrives as family offices recalibrate around duration risk, geopolitical exposure, and the durability of the denominator effect that favored PE allocations through 2021.

The same cohort is simultaneously reducing US financial exposure and shifting custody across jurisdictions, per related UBS family office data released this week. 60% of family offices surveyed are revising asset mixes more frequently than in prior years. The pattern suggests billionaire capital is moving from illiquid US vehicles toward liquid, cross-border optionality. Private equity, which demands seven-to-ten-year lockups and dollar-denominated exits, sits directly in the path of that reallocation.

This matters because family office capital anchors the LP base for mid-market and mega-funds. A 30% pullback in new commitments from this tier compresses fund formation velocity, tightens bridge financing for portfolio companies, and lengthens the time between vintage years for managers dependent on repeat allocators. The UBS sample size is narrow, but the direction aligns with broader LP sentiment: slower deployment, higher bars for re-ups, and a preference for co-invest structures that preserve liquidity. Managers who raised on projected IRRs above 20% in 2021 now face a cohort that prices in distribution delays and currency volatility. The denominator effect reversed when public markets corrected; now the question is whether family offices believe private valuations have followed.

The shift also reflects growing skepticism about US dollar dominance and geopolitical concentration risk. Families are diversifying custody, not just asset class. That means capital that would have flowed to US-based PE funds may instead move to direct real estate in Singapore, tokenized credit in Switzerland, or liquid alternatives with monthly redemptions. The illiquidity premium that justified PE allocations in the 2010s is being re-priced against the cost of immobility.

Allocators should watch fund formation data from Q3 2025 for confirmation. If aggregate commitments to US PE funds decline by 15-20% year-over-year, the UBS survey becomes a leading indicator. Track also the incidence of side letters requesting accelerated distribution or co-invest rights—both signals that LPs are negotiating for optionality they previously ceded. Family offices typically move six months ahead of institutional allocators; if this cohort is cutting, endowments and pension funds will reassess by year-end.

The UBS data is narrow but directionally consistent with every other family office survey published in the past 90 days. The capital is not leaving alternatives. It is leaving lockups.