SoftBank Raises $11B for OpenAI Investment

SoftBank Group is orchestrating a significant debt issuance, aiming to raise approximately $11 billion through a dual-currency bond offering. This substantial capital raise is earmarked to finance the next phase of its strategic investment in OpenAI, the prominent artificial intelligence research firm behind the widely recognized ChatGPT. The move underscores SoftBank's aggressive commitment to the rapidly evolving AI sector.

The offering comprises two tranches: a $10 billion senior unsecured note issuance in U.S. dollars and a €1 billion senior unsecured note issuance in euros. These notes are slated for pricing on September 24, 2026, with settlement anticipated by September 29, 2026. The proceeds are primarily designated to cover SoftBank's $10 billion payment for the third tranche of its follow-on investment in OpenAI, a transaction expected to finalize around October 1, 2026. Any surplus funds will be allocated to general corporate initiatives, and the new debt will also facilitate the retirement of a $10 billion bridge loan facility.

This debt offering, if fully subscribed at its intended size, would establish a new benchmark, representing the largest non-financial corporate bond transaction ever originating from the Asia Pacific and Japan regions. It would surpass the previous record held by 7-Eleven Inc.'s $10.93 billion issuance. Financial rating agency Fitch Ratings has assigned the proposed notes a BB+ rating, indicating a moderate level of credit risk.

Upon the successful completion of this investment tranche, SoftBank's total cumulative capital deployed into OpenAI is projected to reach an impressive $64.6 billion. This substantial investment is expected to translate into an approximate 13% ownership stake in the AI powerhouse. The ongoing financial commitment from SoftBank highlights its conviction in OpenAI's long-term growth trajectory and its pivotal role in shaping the future of artificial intelligence.

The structure of the dollar-denominated notes includes maturities of 3.5, 5.5, and 7.5 years, offering investors a range of duration options. The euro-denominated notes will mature in 4 and 6 years, catering to European debt markets. This diversified approach to debt issuance allows SoftBank to tap into different investor bases and manage its funding costs effectively.

The AI sector continues to attract immense capital, with generative AI technologies experiencing exponential growth and adoption across industries. Companies like OpenAI are at the forefront of this innovation, driving advancements that promise to reshape economies and societies. SoftBank's substantial investment positions it as a key financial backer in this transformative technological wave, seeking significant returns from its early and sustained commitment.