SoftBank Group plans to issue $10–20 billion in overseas bonds tied to its OpenAI investment.
The move refinances a $40 billion bridge loan due March 2027.
SoftBank's total OpenAI investment will reach $64.6 billion.
What happened
SoftBank Group is in talks with multiple investment banks to issue overseas bonds worth $10 billion to $20 billion related to its OpenAI investment. The bonds could be issued as early as September 2026, denominated in US dollars and euros, using a rule that exempts SEC registration for offerings to qualified institutional investors.
Why it matters
The proceeds would refinance a $40 billion unsecured bridge loan arranged in March 2026, which matures in March 2027. SoftBank has committed to investing $30 billion in OpenAI, having already invested $10 billion in April and $10 billion in July, with the final $10 billion due in October. Total cumulative investment would reach $64.6 billion for about a 13% stake.
What to watch
The company is also issuing ¥1 trillion in domestic unsecured bonds—its largest ever—for individual investors, with a 7-year term, and signed a $10 billion borrowing agreement in August 2026 backed by its OpenAI-related assets.
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SoftBank Group is actively restructuring its financing for the OpenAI investment, converting a short-term bridge loan into longer-term debt. The $40 billion bridge loan, arranged in March 2026 with lead managers including JPMorgan Chase, Goldman Sachs, and Mizuho Bank, carries a 12-month maturity, creating near-term repayment pressure that the bond issue would ease.
The company is employing multiple funding channels simultaneously. Alongside the overseas bond plan, it launched a ¥1 trillion domestic bond offering in August 2026 for individual investors—its largest ever—with a 7-year term, and signed a $10 billion borrowing agreement backed by OpenAI-related assets on August 6, 2026. This multi-pronged approach reflects the scale of capital needed as the company commits $30 billion in additional OpenAI investment, with $10 billion each in April, July, and October 2026.
The broader context involves major US tech companies announcing multi-trillion-dollar investments in AI infrastructure, intensifying global competition for AI-related funding. SoftBank's use of both domestic and international bond markets suggests a sustained commitment to AI investment, though the exact terms of the overseas bond issue remain under discussion with investment banks.
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