Larry Ellison Becomes the World’s Richest Man: How Oracle’s AI Bet Dethroned Elon Musk

Ellison on stage at Oracle OpenWorld, “Oracle” logo in background.
Larry Ellison picture, Oracle PR / Hartmann Studios, CC BY 2.0, via Wikimedia Commons (Photo by …, under CC BY 2.0 / CC BY-SA 4.0 / etc.)

Introduction

For years, Elon Musk has sat at the top of the world’s wealth rankings, his fortune tied to Tesla and SpaceX. But on September 10, 2025, something remarkable happened: Larry Ellison — co-founder, chairman, and chief technology officer of Oracle — briefly became the world’s richest person.

His sudden rise was powered not by cars or rockets, but by cloud computing and AI infrastructure, after Oracle’s stock price skyrocketed on the back of huge contracts and bold growth forecasts.


Who is Larry Ellison?
Ellison on stage at Oracle OpenWorld, “Oracle” logo in background.
Larry Ellison at Oracle OpenWorld, Ilan Costica, CC BY-SA 4.0, via Wikimedia Commons (Photo by …, under CC BY 2.0 / CC BY-SA 4.0 / etc.)

  • Born in 1944, raised in Chicago.
  • Dropped out of college twice before co-founding Oracle in 1977.
  • Built Oracle into one of the world’s most important enterprise software and database companies.
  • Known for bold bets, lavish lifestyle, and owning most of the Hawaiian island of Lānaʻi.

Today, Ellison still plays a central role at Oracle as executive chairman and CTO — and crucially, he holds a massive personal stake in the company.


How Rich Is He Now?

At Oracle’s intraday peak, Ellison’s fortune was estimated at $390–$393 billion, briefly putting him ahead of Elon Musk.

To put that into perspective: in a single trading day, his net worth reportedly jumped by as much as $80–$100 billion — one of the largest paper gains in history.


What Business Does Oracle Run?

Oracle began with databases but has reinvented itself for the AI age.

Today, its business includes:

  • Oracle Cloud Infrastructure (OCI) — competing with AWS, Microsoft Azure, and Google Cloud.
  • AI Partnerships & Contracts — securing multi-billion-dollar deals to provide computing power for AI workloads.
  • Enterprise Software — continuing its dominance in database and enterprise systems.

It was Oracle’s cloud and AI story that drove the market frenzy — investors suddenly saw it as a serious rival in the trillion-dollar AI race.


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Why Did Oracle’s Stock Skyrocket?

  1. Massive contracts revealed — Oracle disclosed multi-billion-dollar bookings.
  2. Bold guidance — management predicted much faster growth in cloud revenues than Wall Street expected.
  3. AI demand narrative — investors now see Oracle as a key player in powering artificial intelligence.

The result? A staggering 40–43% intraday surge in Oracle’s stock price.


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What This Means for the “World’s Richest” Rankings

The billionaire leaderboard is extremely volatile. Net worths at this level are tied almost entirely to stock valuations.

  • Musk’s wealth swings with Tesla and SpaceX.
  • Ellison’s fortune is tied to Oracle.
  • A few percentage points in share-price movement can mean tens of billions in “lost” or “gained” wealth overnight.

So while Ellison briefly overtook Musk, the top spot could easily flip back tomorrow.


Bigger Picture: Why This Moment Matters

  • For Oracle: A turning point. Wall Street now sees it as more than a legacy database giant — it’s part of the AI infrastructure core.
  • For AI: The demand for computing power is rewriting the tech landscape, making companies like Oracle newly relevant.
  • For Investors: Proof that AI contracts and cloud growth forecasts can create massive revaluations overnight.

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Takeaway

Larry Ellison’s brief coronation as the world’s richest man shows how the AI revolution is redistributing wealth and influence.

It’s a reminder that in today’s markets, fortunes are made — and unmade — not over decades, but sometimes in a single trading day.

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