The stock portfolios of family offices are almost synonymous with the world’s wealthiest families when it comes to making their bets in the investment world. The latest industry data suggests that the most profitable family offices are not abandoning alternatives, but they are putting more emphasis on listed shares than they did a year ago. These offices often control billions of dollars, move slowly, and signal how long-term capital is positioning for the next cycle.
Stock Portfolios Of The Biggest Family Offices
According to CNBC’s new Family Office Portfolio Tracker with Addepar, public stocks accounted for 34% of tracked portfolios in the first quarter of 2026, up from 32% a year earlier. Addepar said the dataset covers hundreds of family offices representing about $1.4 trillion in assets, while family office wealth globally exceeds $5.5 trillion.
The numbers show why stock portfolios are becoming more important inside the most sophisticated family offices. In Addepar’s quarterly report for Q1 2026, public markets represented 51% of average allocations, with equities alone at 33.9%, cash at 9.5% and fixed income at 8.1%. The rest sat in alternatives, led by private companies at 15.8% and other private assets.
UBS tells a similar story. In its Global Family Office Report 2026, the bank said strategic allocations to developed markets, listed equities, and fixed income account for 41% of allocations. UBS also noted that 60% of family offices plan to change their asset allocation over the next 12 months, the highest share in the survey’s history. The direction of travel is clear, as family offices want more flexibility. Stocks offer liquidity, daily pricing, and faster reallocation than private equity or real estate.
Family offices also appear to be using stock portfolios to express longer-term themes. UBS said public equity markets continue to offer access to both established and emerging areas. Campden Wealth’s 2025 North America family office report found that AI, defense industries, and the Magnificent Seven remained the most popular public-market themes. Meanwhile, cash was viewed by many as the best short-term return source.
The Real Split For Profitable Stock Portfolios
The biggest misconception about family offices is that they all look the same. They do not. Some are still heavily concentrated in private markets, others have large public equity sleeves, and many blend the two. The CNBC-Addepar tracker shows alternatives still made up 48% of average portfolios, versus 52% in public markets. Within alternatives, private equity was 6%, private credit was under 1% and real estate was 7.5%. Cash remained close to 10%, suggesting many family offices are keeping dry powder.
UBS found that developed market equity allocations rose to 26% in 2024 from 24% in 2023, with offices planning changes expecting that to rise further to 29% in 2025. At the same time, private equity allocation eased to 21% in 2024 from a prior peak, and family offices planning changes expected further trimming to 18%.
That does not mean private markets are losing relevance. Campden Wealth said 88% of North American family offices have exposure to private markets, and those assets still account for 29% of the average portfolio. But the data suggests a pause after years of heavy private-market expansion.
The Largest Family Offices And Some Influential People They Represent
Perhaps the best-known of the family offices is Cascade Investment, which manages the wealth of Microsoft co-founder Bill Gates. While much of its portfolio remains private, regulatory filings show meaningful positions across railroads, industrial companies, waste management firms, hospitality businesses, agricultural assets, and energy infrastructure. Its emphasis on durable cash-flow businesses has helped preserve capital through multiple market cycles.
Walton Enterprises, which manages the Walmart family's fortune, oversees one of the world's largest pools of private wealth. Although much of the family's net worth remains tied to Walmart stock, the office has steadily diversified into renewable energy, commercial real estate, technology funds, and private equity. The Walton family's wealth has continued growing alongside Walmart's expanding global operations and dividend distributions.
Bayshore Global Management, representing former Google CEO Eric Schmidt, has increasingly focused its stock portfolios on artificial intelligence, cybersecurity, cloud computing, biotechnology, and defense technology. Recent investments reflect growing institutional interest in AI infrastructure, semiconductor manufacturers, and next-generation software platforms.
Jeff Bezos' Bezos Expeditions also functions similarly to a modern investment office, deploying billions into companies spanning artificial intelligence, healthcare, aerospace, robotics, logistics, fintech, and biotechnology. Amazon remains the largest component of Bezos' wealth, but the broader investment strategy emphasizes high-growth innovation.
Michael Dell's MSD Capital combines public stock portfolios with private credit, real estate, private equity, sports franchises, and alternative investments. The office has built a reputation for balancing technology exposure with defensive assets capable of generating consistent long-term returns.