$73 Billion Vanishes from Wealth of 5 Billionaires in One Day

The world’s richest technology moguls needed only a single U.S. inflation report to incur collective losses exceeding $73 billion in a single day, as consumer price data rekindled market fears that U.S. monetary tightening would persist for longer. U.S. inflation data for September showed annual price growth accelerating to 3.7%, the highest level since May, while the core reading also came in above expectations, prompting investors to increase their bets on the likelihood of another interest rate hike or rates remaining elevated for an extended period. These concerns quickly spilled over into technology and artificial intelligence stocks, which had been among the biggest beneficiaries of the historic market rally over recent years. According to Bloomberg’s Billionaires Index, the five largest tech billionaires lost approximately $73.42 billion in a single day: Elon Musk lost $25.8 billion, Michael Dell $20.6 billion, Larry Ellison $12.4 billion, Mark Zuckerberg $8.55 billion, and Jensen Huang $6.07 billion. Musk topped the list of losers as his wealth fell by more than $25 billion, underscoring the sensitivity of technology and innovation-linked equities to interest rate fluctuations. Dell lost more than $20 billion, while Ellison shed around $12.4 billion amid a sharp decline in shares of companies tied to digital infrastructure and enterprise technology spending. Meanwhile, Zuckerberg and Huang continued to bear the cost of a sell-off wave sweeping through AI and semiconductor stocks, as the sector faced dual pressures from rising yields and concerns over corporate valuations.