Elon Musk, Jeff Bezos, and 8 other tycoons got $500 billion richer in 2024 — and are now worth more than $2 trillion

• The world's 10 wealthiest people added more than $500 billion to their combined fortunes in 2024.
• The top 20 gained $700 billion and ended the year with a total worth above $3 trillion.
• Elon Musk scored a huge $203 billion gain, but other tech bosses also notched up big rises.

The richest people on the planet saw their fortunes surge in 2024 as the artificial intelligence boom, the Federal Reserve's interest rate cuts, Donald Trump's election victory, and a robust economic outlook helped the stock market to roar.

The world's 10 wealthiest people grew more than $500 billion richer last year, boosting their combined net worth to just over $2 trillion — not far off the $2.3 trillion market values of Amazon and Google owner Alphabet.

Widen the lens to the top 20 names on the Bloomberg Billionaires Index, and the total net worth jumped $700 billion to above $3 trillion by the year's end, rivaling Microsoft's $3.1 trillion market value.

Tesla and SpaceX CEO Elon Musk led the pack with a $203 billion gain for the year, which lifted his personal fortune to $432 billion at the market close on December 31.

His net worth briefly touched $486 billion a couple of weeks earlier after Tesla stock surged to a record high and SpaceX's valuation leaped to $350 billion. At that point, his year-to-date gain of $257 billion exceeded the entire net worth of Jeff Bezos, no.2 on the rich list.

However, Musk wasn't the only one to notch huge wealth gains in 2024. Meta CEO Mark Zuckerberg, Nvidia boss Jensen Huang, Oracle cofounder Larry Ellison, and Bezos all grew between $60 billion and $80 billion wealthier as their respective companies surged in value.

Other Big Tech luminaries scored big gains too with Michael Dell, the founder of the eponymous computer maker, adding $45 billion to his fortune. Google cofounders Larry Page and Sergey Brin added $42 billion and $38 billion to their respective fortunes.

Tech leaders accounted for most of the wealth gains, but Walmart founder Sam Walton's three surviving heirs — Jim, Alice, and Rob — each grew more than $38 billion richer, thrusting the trio into the $100 billion club for the first time.

Warren Buffett, whose Berkshire Hathaway conglomerate owes scores of businesses like Geico and huge stakes in public companies like Coca-Cola, also gained $22 billion and ended the year on $142 billion.

Not everyone's a winner

There were a few wealth losers among the uber-wealthy, however. LVMH founder and CEO Bernard Arnault saw his fortune shrink from over $230 billion at its peak in March to $176 billion by the end of December, sending him from first place to fifth.

Indian industrialist Mukesh Ambani, Mexican telecoms mogul Carlos Slim, Indian infrastructure tycoon Gautam Adani, and L'Oréal heiress Françoise Bettencourt Meyers all lost money last year by Bloomberg's estimates.

The superrich mostly got wealthier because excited investors wagered the likes of Nvidia, Tesla, and Microsoft would post higher profits by playing key roles in the AI revolution.

The Fed also made its first cuts to rates after hiking them to curb runaway inflation in 2022 and 2023. That has benefited stocks by making them relatively more appealing versus fixed-income assets such as government bonds, and could boost corporate profits by encouraging spending and borrowing.

Trump's win in November pushed stocks higher too, as the former president had run on promises of pro-growth policies such as tax cuts and deregulation. Tesla in particular gained as investors bet Musk's close ties to the future president would benefit the automaker.