UBS Report: Billionaire Wealth Up 25% on AI Boom as Median Wealth Falls

The global billionaire population grew by 13.1% over the past year to reach 3,302 individuals, with their collective wealth climbing 25% — nearly two and a half times faster than the 10.8% growth in average personal wealth recorded across the broader global population, according to the UBS Global Wealth Report 2026. The gap between those two figures, both drawn from the same 56-market dataset, has become the report’s most closely scrutinized finding, offering the clearest documented evidence yet that the artificial intelligence boom is concentrating wealth gains at a scale and speed rarely seen outside wartime economies.

The report’s seventeenth edition draws on data covering markets that together account for more than 92% of global wealth, according to UBS’s own report summary, giving it a scope few private-sector wealth surveys can match. What it found beneath the aggregate numbers is a story of two very different economies moving in opposite directions simultaneously.

The AI Wealth Machine, By the Numbers

The United States remains home to more than 1,000 billionaires — nearly double China‘s count of 562 — while India holds third place globally with 211 billionaires among a population exceeding 1.4 billion, according to reporting from Spear’s. But the most striking single data point in the report may be South Korea‘s trajectory: the country’s billionaire count nearly doubled, rising from 31 in 2025 to 52 in 2026, driven in large part by the country’s booming semiconductor and AI microchip industries. South Korea’s overall billionaire net worth doubled across the same period — evidence that existing fortunes, not just newly minted ones, expanded sharply on AI-linked equity gains.

Paul Donovan, chief economist at UBS Global Wealth Management, noted that while AI has been one factor behind rising ultra-high-net-worth fortunes, wealth creation reflects a mix of productivity, investment risk-taking, and — at moments of structural upheaval — simple positioning advantage. That framing implicitly acknowledges what critics of the AI wealth boom have argued more bluntly: that early ownership of AI-exposed equities, rather than broad-based productivity gains, explains much of the divergence documented in this year’s report.

Median Wealth Tells a Starkly Different Story

The headline growth figures obscure a more troubling pattern once the data is disaggregated by measure. UBS reported that median wealth — a statistic that better reflects the experience of a typical household than mean averages skewed by billionaire fortunes — actually declined across the majority of countries tracked in the survey, even as average wealth climbed, according to Quartz’s analysis of the report. UBS described the divergence as clear evidence of widening global wealth inequality.

The report’s wealth pyramid data reinforces this picture. The share of adults globally holding less than $10,000 in net assets has continued to shrink, now standing at just over 41% — technically progress, but one driven substantially by asset price inflation among those already holding some wealth, rather than genuine income growth among the poorest segment of the population. Meanwhile, roughly 1.5% of adults in the UBS sample now hold more than $1 million in net assets, with nearly one million new dollar-millionaires added globally over the course of 2025, at a pace of roughly 2,680 people per day.

The United States accounted for close to half of that increase on its own, adding more than 440,000 new millionaires — a rate exceeding 1,200 per day. The United Kingdom added more than 43,000, while France, Spain, Japan, and India each added more than 30,000 new millionaires over the same period.

Where the New Fortunes Are Concentrated

The sectoral breakdown of billionaire wealth growth clarifies exactly how directly the AI boom is driving these gains. Billionaires invested in technology saw their wealth increase by 23.8% in the preceding period covered by UBS’s related Billionaire Ambitions data, while consumer and retail sector wealth growth slowed to just 5.3% as European luxury brands lost ground to Chinese competitors. Industrial wealth, boosted substantially by AI-adjacent infrastructure investment, posted the fastest growth of any sector at 27.1%, reaching $1.7 trillion in aggregate value, with more than a quarter of that growth attributable to newly minted billionaires rather than appreciation of existing fortunes.

Six US technology billionaires alone saw their combined wealth grow by $171 billion, tied directly to AI-driven growth at their respective companies, according to prior UBS reporting reviewed alongside this year’s data. In China, tech billionaires connected to the country’s AI industry likewise saw outsized wealth surges even as the broader Chinese economy continued grappling with a property-sector slowdown and softer consumer spending — illustrating how narrowly concentrated AI-linked wealth creation has become, even within individual national economies.

The Generational Wealth Transfer Compounds the Divide

UBS’s data also captures an accelerating intergenerational wealth transfer that is reinforcing, rather than offsetting, the inequality trend. As the Baby Boomer generation passes on accumulated fortunes, estimates cited alongside the report suggest roughly $90 trillion will change hands globally over the next two decades. Within the current billionaire cohort specifically, newly counted heirs inherited a combined $150.8 billion in the latest reporting period — for the first time exceeding the $140.7 billion in combined fortunes created by self-made new billionaires over the same window, according to data compiled in UBS’s related Billionaire Ambitions research.

That inversion — inherited wealth outpacing newly created wealth among incoming billionaires — marks a meaningful shift in how global fortunes are being replenished, suggesting that even as AI creates genuinely new pools of capital at the top of the distribution, the mechanism reinforcing overall wealth concentration is increasingly inheritance rather than entrepreneurship.

What the Divergence Means Going Forward

The UBS findings arrive at a moment when policymakers across major economies are already grappling with how to tax, regulate, or otherwise respond to AI-driven wealth concentration without stifling the investment that is genuinely driving productivity gains in select sectors. The report does not offer policy prescriptions, but the data itself — 25% billionaire wealth growth against declining median wealth in most tracked countries — provides the clearest empirical anchor yet for a debate that has, until now, relied heavily on anecdote and individual company valuations rather than systematic, cross-country measurement.

For markets and policymakers alike, the report’s central finding functions as a warning that the AI boom’s benefits, however transformative for productivity in aggregate, are not yet reaching the median household in most of the world’s major economies — a gap that is likely to shape political and regulatory responses to artificial intelligence for years beyond the current market cycle.