SoftBank Group Corp. finalized terms for its 70th unsecured straight corporate bond. The company set the interest rate at 4.75% per annum. The total issuance reaches ¥1 trillion. This capital equates to approximately $6.3 billion. This coupon rate more than doubles the average for similar Japanese corporate bonds this year. The bond carries a seven-year term. The offering period runs from September 7 to September 16, 2026.
SoftBank will use the proceeds to refinance existing debt. The capital will also fund expanding artificial intelligence investments. These investments include specific commitments to OpenAI. This fundraising follows a U.S. initial public offering filing by SB Energy, the company's AI infrastructure subsidiary. The high yield reflects market assessments of the risk and ambition in Masayoshi Son’s AI strategy.