SoftBank Group shares rise 7% after announcing $11.1 billion bond sale to fund OpenAI investment
Quick Look
SoftBank Group shares jumped over 7% in Tokyo as the company announced a $11.1 billion bond issuance to fund the final tranche of its $30 billion investment in OpenAI, bringing its total stake in the AI firm to approximately 13% upon completion expected Oct. 1.
AI-generated summary
Why It Matters
SoftBank agreed in February to a $30 billion follow-on investment in OpenAI, which would bring its cumulative stake to $64.6 billion and approximately 13% ownership. The latest bond sale funds the final $10 billion tranche of this commitment.
Shares of SoftBank Group jumped more than 7% on Thursday, as Japanese markets opened for the first time this week following a three-day holiday and the technology investor announced an $11.1 billion bond issuance to help fund its growing bet on OpenAI.
SoftBank said Thursday it issued $10 billion in dollar-denominated senior notes and 1 billion euros ($1.14 billion) in euro-denominated notes. The company said proceeds will be used to fund a $10 billion payment for the third and final tranche of its $30 billion follow-on investment in OpenAI, which is expected to close Oct. 1, as well as for general corporate purposes.
The bond sale underscores the scale of CEO Masayoshi Son's push into artificial intelligence. SoftBank agreed to the $30 billion investment in February, which will bring its cumulative investment in the ChatGPT maker to $64.6 billion and give it an approximately 13% stake upon completion.
The latest fundraising comes as investors have increasingly scrutinized how SoftBank will finance its sprawling AI ambitions and the impact of rising leverage on its balance sheet.
What to Watch
AI outlook — possibilities, not facts
SoftBank's OpenAI investment tranche will close on Oct. 1 as stated
Very likely · Within weeks
Open Questions
- How will SoftBank manage the increased leverage on its balance sheet from this bond issuance?
- What specific terms (interest rates, maturities) were attached to the dollar- and euro-denominated notes?
- Are there any conditions or milestones tied to the OpenAI tranche payment beyond the Oct. 1 closing date?






