Masayoshi Son’s net worth over time
Only dates with a published estimate are shown. Nothing is filled in between. Tap or hover a bar to see the source.
See the numbers as a table
| Date | Estimate | Source |
| 2019 | $21.6 billion | Forbes World's Billionaires List 2019 |
| 2020 | $16.6 billion | Forbes World's Billionaires List 2020 |
| 2021 | $45.4 billion | Forbes World's Billionaires List 2021 |
| 2022 | $21.3 billion | Forbes World's Billionaires List 2022 |
| 2023 | $22.4 billion | Forbes World's Billionaires List 2023 |
| 2024 | $32.7 billion | Forbes World's Billionaires List 2024 |
| 2025 | $29.4 billion | Forbes World's Billionaires List 2025 |
| 2026 | $51.5 billion | Forbes World's Billionaires List 2026 |
| Oct 2026 | $55.9 billion | Forbes Real-Time Billionaires · Forbes real-time estimate |
Where the money comes from
These are the main sources of wealth named in the reporting we cite. No published source breaks the total into exact amounts, so we do not show percentages.
Masayoshi Son’s fortune in real-life terms
Based on the Forbes Real-Time Billionaires estimate above. Median full-time U.S. pay is $65,416 a year ($1,258 a week, BLS, Q2 2026), before taxes. Typical (median) U.S. family net worth is $216,100 (Federal Reserve, 2025 Survey of Consumer Finances).
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Masayoshi Son has an estimated net worth of $55.9 billion, according to Forbes Real-Time Billionaires, Masayoshi Son profile (figures as of October 20, 2026). That is up from $21.6 billion in 2019.
Masayoshi Son is a Japanese entrepreneur and investor who founded SoftBank Group and still leads it. He first built his name in software distribution, computer publishing, and telecom in Japan. Over time, SoftBank changed from a telecom company into a technology investment group. Son also serves as chairman of Arm Holdings and Stargate LLC. His work in internet, chips, telecom, and investment deals made him a major figure in finance and technology.
His wealth grew through early bets on internet companies and then through much larger investment vehicles. SoftBank bought a share of Yahoo! in 1995 and Son invested $20 million in Alibaba in 1999. Later, he launched the Vision Fund in 2017 to back artificial intelligence, robotics, and other fast-growing technology businesses. Forbes put his net worth at $55.9 billion on its real-time billionaires tracker in October 2026.
How Masayoshi Son built his fortune
Son started SoftBank in 1981 as a software distributor and publisher of computer-related material. As the company expanded, it moved deeper into telecom and then into large-scale investing. SoftBank later became known for major positions in internet and technology companies, including Yahoo!, Alibaba, Arm, Sprint, and a long list of newer startups. That shift from operating business to investment holding company helped turn Son into one of Japan's best-known self-made billionaires.
A big part of his wealth now comes from SoftBank's investment machine. Vision Fund 1 brought in backers including Apple, Qualcomm, Foxconn, the family office of Larry Ellison, and Saudi Arabia's sovereign fund. The Vision Funds have invested in over 400 companies, including Grab, Coupang, and Swiggy. Son is also putting billions into AI, including the $500 billion Stargate Project with OpenAI, Oracle, and MGX, plus a planned $30 billion investment in OpenAI in 2026.
Recent money moves and Forbes value
SoftBank's latest results show why Son's fortune can move fast. For the year ended March 31, 2026, SoftBank Group reported net profit of 5 trillion yen, equal to $31 billion, on sales of 7.8 trillion yen, or $49 billion. The company has also kept reshaping its portfolio. In 2024, it announced a joint venture with Alat to manufacture industrial robots, adding another industrial technology project to its mix.
Forbes has tracked sharp swings in Son's fortune in recent years. Its World's Billionaires list estimated $21.6 billion in 2019, $16.6 billion in 2020, $45.4 billion in 2021, $21.3 billion in 2022, $22.4 billion in 2023, $32.7 billion in 2024, $29.4 billion in 2025, and $51.5 billion in 2026. In November 2025, SoftBank sold its entire Nvidia stake for nearly $6 billion to help fund its OpenAI investment plan.
Career and money timeline
- 1981
He founded SoftBank as a software distributor and computer publishing company.
- 1995
SoftBank bought a share of Yahoo!, one of Son's early internet bets.
- 1999
He invested $20 million in Alibaba through SoftBank.
- 2017
SoftBank launched the Vision Fund to invest in emerging technologies.
- 2024
SoftBank Group announced an industrial robot venture with Alat.
- 2025
SoftBank sold its entire Nvidia stake for nearly $6 billion.
- 2026
Forbes valued him at $55.9 billion on its real-time tracker in October.
Masayoshi Son net worth FAQ
What is Masayoshi Son's net worth?
Masayoshi Son's net worth is an estimated $55.9 billion, according to Forbes Real-Time Billionaires, Masayoshi Son profile (October 20, 2026). It is an estimate, not an official figure.
How did Masayoshi Son get so rich?
The main sources named in the reporting we cite are: Telecom, Investments.
Is Masayoshi Son a billionaire?
Yes. Forbes Real-Time Billionaires estimates Masayoshi Son is worth $55.9 billion.
How has Masayoshi Son's net worth changed?
The earliest published estimate we track is $21.6 billion (2019, Forbes World's Billionaires List 2019). The latest is $55.9 billion (October 20, 2026).
What is Masayoshi Son's main company?
His main company is SoftBank Group. He founded it and still runs it.
What sectors drive his wealth today?
His money is tied to telecom and investments, according to Forbes. Recent activity in AI, Arm, and the Vision Funds is central to that story.
Sources
- Forbes Real-Time Billionaires, Masayoshi Son profile (October 20, 2026)
- Forbes World's Billionaires List 2019, Masayoshi Son profile (March 5, 2019)
- Forbes World's Billionaires List 2020, Masayoshi Son profile (April 8, 2020)
- Forbes World's Billionaires List 2021, Masayoshi Son profile (April 6, 2021)
- Forbes World's Billionaires List 2022, Masayoshi Son profile (April 5, 2022)
- Forbes World's Billionaires List 2023, Masayoshi Son profile (April 4, 2023)
- Forbes World's Billionaires List 2024, Masayoshi Son profile (April 2, 2024)
- Forbes World's Billionaires List 2025, Masayoshi Son profile (April 2025)
- Forbes World's Billionaires List 2026, Masayoshi Son profile (March 10, 2026)
- U.S. Bureau of Labor Statistics, Usual Weekly Earnings (Q2 2026) (July 2026)
- Federal Reserve, 2025 Survey of Consumer Finances (median family net worth, Table 4) (October 2026)
- Background facts: Wikipedia, Masayoshi Son (accessed October 20, 2026). Used for career facts only, never for figures.
Photo: European Communities, 2025 / EC – Audiovisual Service, CC BY 4.0, via Wikimedia Commons.
Every number on this page is an estimate published by the source named next to it. We never fill in years with our own guesses. How we handle estimates.