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In the year 2000, one man lost 58.6 billion dollars. Not as investors' money, his own. It was so much money that Guinness World Records wrote it down as the largest personal financial loss in human history. A record that stood for 22 years. His name is Masayoshi Son. In a matter of months, 95% of his fortune evaporated.
His company collapsed from a hundred and eighty billion dollars to two and a half billion. Most men would have vanished. Son rebuilt the fortune. Then he raised a hundred billion dollar fund and bled seventy billion more. Tonight, Money Autopsy opens the file on the most dangerous gambler in modern finance and asks the only question that matters.
Genius or simply a man who keeps surviving his own bets? Masayoshi Son was born in 1957 in Tosu, Japan, the son of a Korean immigrant family in a country where that background meant starting life as an outsider. At 16, he moved alone to California. He learned English, talked his way into UC Berkeley, and was already running his first business as a student, importing Japanese arcade machines to American bars.
While still at Berkeley, he invented an electronic translator that he sold to Sharp for about a million dollars. He later said he had made a list of 40 possible businesses and scored each one against strict rules of his own before software distribution won. In 1981, he went home and founded SoftBank, a software distributor with two part-time employees and a private vow that it would become a giant.
Then came the internet. In 1995, Son put more than a hundred million dollars into a tiny web directory called Yahoo. When almost nobody in Japan knew what the internet was. He bought trade shows, publishers, phone networks, anything with a wire into the new world. Within five years, SoftBank held stakes in hundreds of internet companies, and Sun's personal wealth was growing by ten billion dollars a week.
1.4 billion dollars a day. In February of the year 2000, for exactly three days, Masayoshi Son passed Bill Gates as the richest man alive. He was 42 years old. He had built it all on one belief, that the internet would eat the world. And one method, bet early, bet enormous, and never hedge. To Sun, diversification was a confession of doubt.
Nearly every yen he owned sat in internet stocks. And the biggest position of all was the stock of his own company. He had no idea the floor was already moving. Between March and the end of the year 2000, SoftBank's stock lost 93% of its value. The company's market value fell from a hundred and eighty billion dollars to two and a half billion.
Sun personally lost 58.6 billion dollars. The Guinness World Record for the largest personal financial loss ever recorded. A title he kept for 22 years, until Elon Musk finally took it from him in 2022. For every hundred dollars Sun had been worth in February, five dollars remained by winter. Creditors circled.
The obituaries of SoftBank were being drafted. His own verdict on the period was four words long. Somehow, I survived. What saved him was a check he had written in the middle of the mania. In the year 2000, after a meeting that reportedly lasted only minutes, Sun invested $20 million in a loss-making Chinese startup run by a former English teacher named Jack Ma.
The company was Alibaba. That single $20 million bet would one day be worth more than $75 billion. One of the greatest venture investments ever made. Six years later, Sun borrowed $15 billion to buy Vodafone's failing Japanese mobile business, rebranded it SoftBank Mobile, and won the exclusive deal to sell the iPhone in Japan.
The gambler was back. But notice what survival actually taught him. He was not saved by caution. He was not saved by diversification. He was saved by one enormous bet that happened to pay. It is the most dangerous lesson a man can learn, that the abyss always catches him. In 2016, Sun decided that venture capital itself was too small.
He raised the Vision Fund $100 billion, the largest technology fund in history. $45 billion came from Saudi Arabia's sovereign wealth fund, billions more from Abu Dhabi and Apple. His pitch was a 300-year plan. His method was shock and awe. $100 million was the minimum ticket. Founders who asked for $50 million were told to take 200.
Money became a weapon pointed at entire industries. Ride-hailing, food delivery, hotels, office space, deployed so fast that rivals could not raise enough to survive standing next to it. As the story is told by both sides, Sun toured WeWork's office for barely a quarter of an hour before committing $4.4 billion.
On the walk, he asked its founder, "Who wins a fight, the smart man or the crazy man?" "The crazy man." came the answer. Sun replied, "You are not crazy enough." The fund poured $7.7 billion into Uber and billions more into DoorDash, Coupang, Oyo, and dozens of others. Some became giants. A second fund followed, funded mostly with SoftBank's own money after outside investors got cold feet.
But, here is the finding this autopsy cannot skip. A fund this size does not discover value. It manufactures it. When one buyer will pay any price, the price becomes whatever he paid last. The Vision Fund was not measuring the bubble. In large part, it was the bubble. WeWork is where the machine met reality.
Sun valued a company that rented desks, a business losing $2 billion a year, at $47 billion, more than Ford. When WeWork filed to go public in 2019, the prospectus exposed everything. The losses, the self-dealing, the chaos. The IPO collapsed. The valuation fell to $8 billion. The founder walked away with an exit package worth $1.7 billion.
SoftBank's total damage on WeWork alone, roughly $18 billion. WeWork filed for bankruptcy in November 2023. Uber, the fund's flagship, lost a third of its value within months of its stock market debut. Sun stood before reporters in Tokyo and admitted his judgment on WeWork had been poor. The closest thing to an apology the market would ever get.
Then came the second crash. In the year to March 2022, SoftBank swung from posting the largest annual profit in Japanese corporate history to the Vision Fund's record loss, $32 billion in a single year. At the worst point, the Vision Fund's cumulative losses exceeded $70 billion. And through side deals that let him invest alongside his own fund, Son personally owed SoftBank more than $5 billion.
There was a quieter wound, In 2019, SoftBank had sold its stake in a graphics chip company called Nvidia for about $3.6 billion. Within 5 years, that same stake would have been worth well over 100 billion. Son admitted publicly that he cried over it. One after another, the trophies were sold to raise cash.
Shares in Alibaba itself, the savior of the first crash, were trimmed again and again. Satellite venture OneWeb went bankrupt. Hotels, delivery apps, office empires, the fund's map was littered with write-downs. The man who had told founders to think bigger was now giving smaller and smaller interviews.
And for a stretch, he stopped appearing in public altogether. He declared what he called defense mode. The great gambler stopped betting. Cause of injury, for the official record, not fraud. There was no fraud here. It was conviction with no brakes at a scale where being wrong is measured in tens of billions.
Every Son resurrection is the same story. One bet placed years earlier that everyone mocked at the time. In the year 2000, it was Alibaba. This time, it was ARM. In 2016, Son paid $32 billion for a British company that designs chips but manufactures nothing. A price analysts openly called absurd. ARM's designs sit inside virtually every smartphone on Earth.
But for years, the bet looked like another monument to his ego. Then, in September 2023, ARM went public at a $54 billion valuation. The AI boom hit. The stock roughly tripled. ARM became the crown jewel of SoftBank and the collateral for everything that came next. For 2 years, the fund had barely invested at all.
Now, the machine woke up. SoftBank shares hit record highs in 2025. And in June of that year, Masayoshi Son's net worth passed $100 billion once more. The richest man in Asia, 25 years after losing 95% of everything. This is the pattern our autopsy keeps finding on the table. Not a portfolio. Not a process.
One concentrated position held through years of ridicule that either resurrects him or buries him. A hundred other bets inside those same funds died quietly. History only remembers the two that lived. So, what does a man like this do at 68 years old with a hundred billion dollars and a reputation rebuilt twice?
He rolls the dice a third time. The biggest roll of his life. Son is now, in his own words, all in on OpenAI. $500 million in 2024. $30 billion completed in 2025. The largest single private investment in technology history for 11% of the company. Another 30 billion followed through 2026, taking SoftBank's total to 64.6 billion dollars for roughly 13%.
Alongside it stands Stargate, a 500 billion-dollar plan to build AI data centers across America. Announced in January 2025 with Sun standing beside the president of the United States, shoulder to shoulder with the heads of OpenAI and Oracle. Sun claims artificial superintelligence will redraw the entire world economy within his lifetime, and he intends to own the toll booth.
His partners are the most powerful names in technology. His enemy, as always, is arithmetic. Now, look at how he is paying. He sold the entire Nvidia stake, again, for 5.8 billion dollars. He sold 9 billion dollars of T-Mobile shares. He borrowed 11 and a half billion dollars against ARM. He sold a record 11 billion dollars of bonds.
Quarter after quarter, the machine must find another 10 billion dollars to feed a single company whose own projections show hundreds of billions of dollars in cash burned this decade. Our verdict, Masayoshi Son is not an investor who occasionally gambles. He is a gambler who occasionally invests. Position sizing is his religion.
Survival is his only risk control. The same trait produced the greatest comeback in financial history, twice, and nearly killed him, twice. If he is wrong this time, there's a problem that previous versions of this story did not have. There is no Alibaba in the drawer anymore. He sold it to pay for the comeback.
The third roll is on the table. It is larger than the first two combined. And the dice have not landed yet. What company should we autopsy next? Tell us in the comments.
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