SoftBank Group
Strategic investment holding company (AI, chips, telecoms) · Japan
SoftBank Group is a Japanese investment holding company that owns most of chip designer Arm, controls telecom operator SoftBank Corp. and backs AI companies such as OpenAI through its Vision Funds.
What makes it different
Most of its value is one British chip designer.
86%Stake in ArmMay 2026
Arm's share price moves SoftBank's net asset value more than anything else it owns.
How big it is
How big is SoftBank Group?
¥72.3TNet asset valueQ1 2026
¥7.80TNet salesFY2025
73,677EmployeesFY2025
How it makes money FY2025
Sales come from its phone company; profits from investments.
- SoftBank90%¥7.04T
- AI Computing8%¥640.3B
- Other2%¥150.6B
How the business works
Buy into AI. Borrow against it.
- 1Arm and SoftBank Corp.
- 2OpenAI via Vision Funds
- 3Against listed shares
Its listed stakes double as collateral, so the share price of Arm sets how much it can invest.
Who owns it
- Masayoshi Son32.73%
- The Master Trust Bank of Japan (trust account)16.48%
- Custody Bank of Japan (trust account)6.58%
CEO: Masayoshi Son
Who it competes with
Key moments
- 1981Founded as a PC software distributor
- 2000Invested in Alibaba
- 2006Bought Vodafone K.K. and entered mobile
- 2016Acquired chip designer Arm
- 2017SoftBank Vision Fund 1 launched
Sources
Every number on this page comes from SoftBank Group's own reports.
Full profile
The rest of the story is in the app.
What SoftBank Group tracks26 metrics
Loan-to-value
Stake in Arm
Ownership interest in OpenAI
Results, quarter by quarterwith a chart
Revenue
Profit
Margin
The full timeline18 moments
2018
2025
2026
SoftBank Group vs Prosusside by side
Revenue
Profit
People
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