SoftBank Group Bond Issuance to Fund OpenAI Investment
On 24 September 2026, SoftBank Group announced the issuance of senior notes totaling $11.1 billion, comprising both dollar‑ and euro‑denominated securities. The dollar portion consists of $10 billion split into three tranches: a $1 billion tranche with a 3.5‑year maturity carrying an 8.625 % coupon, a $4.5 billion tranche with a 5.5‑year maturity at a 9.25 % coupon, and another $4.5 billion tranche with a 7.5‑year maturity at a 9.75 % coupon. In addition, SoftBank issued two euro‑denominated senior notes of €500 million each, bringing the euro issuance to €1 billion.
The proceeds are earmarked primarily for SoftBank’s commitment to increase its equity position in artificial‑intelligence firm OpenAI, raising the stake to an estimated $64.6 billion. The bond issue was reported by Reuters and the article notes that it was generated with AI assistance and edited by Ambar Warrick. No other uses of proceeds or financial covenants were disclosed in the filing.