Elon Musk - a famous technology entrepreneur, co-founder of Tesla, SpaceX and the artificial intelligence startup xAI, still maintains the world number one position but is the person who loses the most money in the group.
According to the latest update, Musk's assets are 718.7 billion USD, down 5.7 billion USD compared to the previous day. Compared to January 11 (when Forbes recorded Musk owning up to 722.9 billion USD - a record high after his assets have more than doubled compared to the beginning of 2025), the current asset value has decreased by about 4.2 billion USD.
With Musk holding about 12% of Tesla shares and controlling many large technology companies such as SpaceX, Neuralink or The Boring Company, the volatility of technology stocks has directly impacted his personal asset value.

Right after Musk is Larry Page - co-founder of Google and one of the two "brains" behind the PageRank algorithm. Page's assets on January 15 reached 274.6 billion USD, a slight decrease of 97.6 million USD compared to the previous session.
However, compared to January 11, when he owned 269 billion USD, Page's net asset value still increased by about 5.6 billion USD, reflecting the upward trend of Alphabet shares in recent times.
Although he left the position of CEO of Alphabet in 2019, Page is still a member of the board of directors and a controlling shareholder, continuing to benefit from the breakthrough of the world's largest technology corporation.
Sergey Brin - co-founder of Google and Larry Page, also witnessed a slight decline in assets on January 15. With 253.4 billion USD, Brin lost about 89.7 million USD in 24 hours. However, compared to the 248.2 billion USD recorded on January 11, his assets increased by more than 5 billion USD in just a few days.
Although he left the position of Alphabet Chairman at the end of 2019, Brin remained the controlling shareholder, thereby continuing to increase asset value along with the increase in Google shares.
Meanwhile, billionaire Jeff Bezos - the founder of Amazon, is one of the biggest losers. His assets on January 15 were only 247.6 billion USD, down 5.2 billion USD in one day, equivalent to a decrease of more than 2%. Compared to January 11, when Bezos was valued by Forbes at 257.1 billion USD, his assets have evaporated nearly 9.5 billion USD.
Bezos, the founder of Amazon from a garage in Seattle in 1994 and currently owns The Washington Post and aerospace company Blue Origin, is clearly affected by the adjustment of Amazon shares in the market.
Larry Ellison - Chairman, Chief Technology Officer and co-founder of Oracle, is the person with the strongest decline in the top 5. On January 15, Ellison's assets were only 242.5 billion USD, down 9.7 billion USD in 24 hours, equivalent to nearly 4%.
Compared to 248.1 billion USD on January 11, he lost about 5.6 billion USD. Ellison currently holds about 40% of Oracle shares and was a member of the Tesla board of directors in the period 2018–2022, so changes in the technology market directly affect his asset value.
In general, in the trading session on January 15, the world's five richest billionaires lost a total of about 20.8 billion USD. Compared to January 11 – just four days earlier, when the group's assets were at their peak – their net worth also decreased by about 8.5 billion USD, despite Larry Page and Sergey Brin still recording an increase.
This development shows that despite holding the most massive assets on the planet, technology billionaires are still unavoidable to the impact of market corrections. In just a few trading sessions, tens of billions of USD may "evaporate", clearly reflecting volatility and risk even in the super-rich class.
