• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
FinanceBillionaires

How WeWork’s Wobbles Are Putting SoftBank Founder Son’s $15 Billion Fortune in Danger

By
Tom Metcalf
Tom Metcalf
,
Pavel Alpeyev
Pavel Alpeyev
,
Giles Turner
Giles Turner
and
Bloomberg
Bloomberg
Down Arrow Button Icon
By
Tom Metcalf
Tom Metcalf
,
Pavel Alpeyev
Pavel Alpeyev
,
Giles Turner
Giles Turner
and
Bloomberg
Bloomberg
Down Arrow Button Icon
September 19, 2019, 5:07 AM ET
Masayoshi Son, chairman and chief executive officer of SoftBank Group Corp., speaks during a news conference in Tokyo, Japan, on Thursday, Sept. 12, 2019. Yahoo Japan Corp.s surprise plan to buy a majority stake in Zozo Inc. sent investors scrambling to pick potential winners and losers in Japans online retail and payments fields. Photographer: Akio Kon/Bloomberg via Getty Images
Masayoshi Son, chairman and chief executive officer of SoftBank Group Corp., speaks during a news conference in Tokyo, Japan, on Thursday, Sept. 12, 2019. Yahoo Japan Corp.s surprise plan to buy a majority stake in Zozo Inc. sent investors scrambling to pick potential winners and losers in Japans online retail and payments fields. Photographer: Akio Kon/Bloomberg via Getty ImagesAkio Kon—Bloomberg via Getty Images

Masayoshi Son, who built a $15.2 billion fortune investing in tech startups like Alibaba Group Holding Ltd., is betting on himself more than ever, even as his empire shows signs of vulnerability.

The SoftBank Group Corp. founder has pledged 38% of his stake in the Japanese firm as collateral for personal loans from 19 banks, including Credit Suisse Group AG and Julius Baer Group Ltd., according to a June regulatory filing. That’s up from 36% at the start of the year and triple the level in June 2013.

“It lets him monetize a large share of his wealth without foregoing influence over the firm,” said Michael Puleo, assistant professor of finance at Fairfield University’s Dolan School of Business in Connecticut. “But there’s an elevation of crash risk. If the share price falls low enough, he could get a margin call and that could be pretty costly.”

The structure highlights the extent of Son’s exposure to SoftBank and its $100 billion Vision Fund. Shares in the Japanese conglomerate have been rocked recently by the postponement of WeWork’s initial public offering. The delay came after the office-rental unicorn was being marketed at a steep discount to the $47 billion figure that the Tokyo-based conglomerate invested at earlier this year. That’s spooked investors, who sent SoftBank’s shares down 5% at one point this week as the listing unraveled, knocking $770 million off Son’s net worth. The stock has still advanced roughly 27% this year.

Son, 62, also has leveraged his stake in the Vision Fund, which invests in tech startups. That boosts his returns if things go well, with outsized losses if they don’t. Uber Technologies Inc.’s falling market capitalization and WeWork’s travails are set to dent the 62% return on the fund that SoftBank reported through March.

“There is a danger in companies where the founder calls all the shots regardless of whether there are loans,” said Robert Pozen, a senior lecturer with the MIT Sloan School of Management in Boston. “And when founders borrow a lot against their shares, they might be more tempted to make riskier decisions,” he said, adding that borrowing against 5% of one’s stake is usually considered reasonable.

Pay Out

SoftBank’s compensation plan also involves a lot of debt. Son loaned himself around $3 billion to invest in the first Vision Fund, according to people with knowledge of the matter, who asked not to be identified because the information isn’t public. Using loans for a private investment compounds Son’s risk because he would be less able to bail himself out if things go south, Pozen said.

The loan was swapped for equity in the fund and will generate profits when deals make money — and losses when they don’t. Vision Fund employees, including high-profile bankers and investors, receive base salaries and bonuses, but only get payouts when profits are booked.

It’s unclear how much of this compensation will be reported in SoftBank’s next annual report. Son’s pledged shares, which currently have a market value of $9 billion, are excluded from his net worth calculation by the Bloomberg Billionaires Index. SoftBank spokeswoman Hiroe Kotera declined to comment.

SoftBank is planning to lend as much as $20 billion to its employees to buy stakes in a second venture capital fund, the people said. Son may account for over half of the employee investment pool, they said.

Ellison, Musk

Pledged shares have become an increasingly common way for founders to unlock the value of a stake without selling shares. Larry Ellison has a history of pledging Oracle Corp. stock to fund a lavish lifestyle, which includes trophy properties, America’s Cup teams and the Indian Wells tennis tournament. About 27% of his Oracle shares — worth more than $16 billion — are currently pledged. Elon Musk has pledged about 40% of his stake in Tesla Inc., according to a May 2019 filing.

Still, the move comes with risks. “If the price of our common stock were to decline substantially, Mr. Musk may be forced by one or more of the banking institutions to sell shares of Tesla common stock to satisfy his loan obligations if he could not do so through other means. Any such sales could cause the price of our common stock to decline further,” Tesla warns in a filing.

The risk-loving Son, who saw $70 billion wiped from his fortune in the dot-com crash, is unlikely to be fazed. He told shareholders at the company’s June meeting that SoftBank’s investment portfolio could grow 33-fold to 200 trillion yen ($1.8 trillion) in 20 years.

More must-read stories from Fortune:

—The bull and bear case for investing in Apple before the debut of its streaming service
—Are we near a recession? The godfather of the inverted yield curve says it’s “code red”
—How companies are vying for dominance as Europe’s battle for electric cars heats up
—WeWork’s options for raising cash are narrowing fast ahead of its IPO
—Listen to our audio briefing, Fortune 500 Daily
Follow Fortune on Flipboard to stay up-to-date on the latest news and analysis.

About the Authors
By Tom Metcalf
See full bioRight Arrow Button Icon
By Pavel Alpeyev
See full bioRight Arrow Button Icon
By Giles Turner
See full bioRight Arrow Button Icon
By Bloomberg
See full bioRight Arrow Button Icon

Latest in Finance

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Most Popular

placeholder alt text
North America
'I meant what I said in Davos': Carney says he really is planning a Canada split with the U.S. along with 12 new trade deals
By Rob Gillies and The Associated PressJanuary 28, 2026
17 hours ago
placeholder alt text
C-Suite
Fortune 500 CEOs are no longer giving employees an A for effort. Now they want proof of impact
By Claire ZillmanJanuary 28, 2026
1 day ago
placeholder alt text
Real Estate
Ryan Serhant thinks the American Dream was just a 'slogan created by banks,' but it was really about FDR, the Great Depression, and an economic crisis
By Sydney Lake and Nick LichtenbergJanuary 26, 2026
3 days ago
placeholder alt text
Commentary
Yes, you're getting a bigger tax refund. Your kids won't thank you for the $3 trillion it's adding to the deficit
By Daniel BunnJanuary 26, 2026
3 days ago
placeholder alt text
Personal Finance
Current price of silver as of Tuesday, January 27, 2026
By Joseph HostetlerJanuary 27, 2026
2 days ago
placeholder alt text
Success
As AI wipes out desk jobs, Citigroup CEO Jane Fraser says the company is training 175,000 employees to ‘reinvent themselves’ before their roles change forever
By Emma BurleighJanuary 27, 2026
2 days ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.


Latest in Finance

Personal Financemortgages
Current mortgage rates report for Jan. 29, 2026
By Glen Luke FlanaganJanuary 29, 2026
8 minutes ago
Personal FinanceReal Estate
Current ARM mortgage rates report for Jan. 29, 2026
By Glen Luke FlanaganJanuary 29, 2026
8 minutes ago
Big TechTesla
Tesla reveals $2 billion investment in Elon Musk’s xAI and officially kills the Model S and Model X
By Jessica MathewsJanuary 28, 2026
6 hours ago
Bald man with glasses and black shirt.
Big TechFortune 500
Microsoft demand backlog doubles to $625 billion thanks to OpenAI, but hefty spending and slower revenue growth spook investors
By Amanda GerutJanuary 28, 2026
7 hours ago
BankingDonald Trump
JPMorgan, BofA will match the $1,000 ‘Trump Accounts’ for employees’ children. Here’s how to open an account
By Sydney LakeJanuary 28, 2026
9 hours ago
Mark Zuckerberg, chief executive officer of Meta Platforms Inc
AIMeta
Meta beats on Q4 revenue as Mark Zuckerberg predicts a ‘major AI acceleration’ in 2026—with up to $135 billion in capex spending to match
By Sharon GoldmanJanuary 28, 2026
10 hours ago