The billionaire club set new highs in 2025. Altrata counted 3,795 billionaires worldwide, an 8.2% increase that marks the sharpest annual rise in half a decade. Their collective fortune hit $15.1 trillion after a 12.8% climb.
Altrata also flagged 150 publicly listed firms that most boosted billionaire fortunes. And among the three-comma set, there is a tier above the rest: 29 "superbillionaires" with individual net worths over $50 billion. Combined, their fortunes add up to $4.1 trillion - amounting to 27% of global billionaire wealth. Back in 2017, Altrata estimated there were only 10 such ultra-wealthy individuals, representing 7.2% of the total.
AI spending is showing up in market performance. Altrata reports that firms putting $30 million or more into AI across the past five years saw market capitalization expand 23% faster than non-investors between 2024 and 2025.
Wall Street's AI zeal has also stretched the gap within the top tier. Maya Imberg, who leads thought leadership and analytics at Altrata, said fortunes built on tech names tied to AI can swing around. "We expect the fortunes of many of the richest billionaires, those whose companies are tech-focused, to go up and down in response to the AI story," she wrote. She added, "Market concentration doesn't necessarily mean it's a bubble. But there's certainly risk when exposure is concentrated within one main sector (tech), and to AI within that."
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This year has seen wild market moves, including a July slide that erased $1.3 trillion from major chip stocks. For the richest of the rich, those swings translate to big day-to-day changes on paper. Forbes recorded a single-day loss of $18 billion for Elon Musk, alongside a $50 billion slide over one week for Larry Ellison.
North America remains home to the largest billionaire cohort at 1,337 people after an 11.6% increase in 2025, the fastest pace of any region. Europe's tally rose 7.9% to 1,081, and Asia reached 881 after a 6.5% gain. Imberg credited part of North America's surge to the U.S. lead in both private and public tech markets.
It was also an unusually supportive backdrop: every major asset class tracked by Altrata posted positive returns in 2025, the first time that has happened since the pandemic, even with turbulence from U.S. President Donald Trump's trade war. For everyday investors, the takeaway is simple enough: AI is minting wealth at the top and concentrating it, which can juice returns when the trend is hot and magnify hits when the mood cools.
