SoftBank replaces the OpenAI bridge with $10bn and €1bn of bonds

SoftBank is preparing more than $10bn of dollar bonds and €1bn of euro bonds. According to market documents reported by Reuters, the deal is intended partly to fund the third $10bn tranche promised to OpenAI, expected on 1 October, and to replace a bridge of the same size. The new information is therefore not a reduction in debt. It is the conversion of temporary financing into lasting debt at the holding company.

What actually changes

The sequence is straightforward:

Our article on the repayment of the OpenAI bridge asked the key question: what would replace the short-term funding? The market documents provide the first concrete answer. SoftBank is seeking to spread the debt across five tranches, from 3.5 to 7.5 years, and two currencies.

That reduces the risk of refinancing the full amount at the same time. It does not reduce leverage. The bridge disappears, but bond debt takes its place. Coupons, spreads and final allocations have not yet been published, so the additional annual cost cannot yet be calculated reliably.

A scale marker, not pro forma debt

SoftBank announced that its second $10bn OpenAI tranche, paid on 1 July, used a contractual conversion rate of ¥162.73 per dollar. At the same rate, $10bn equals roughly ¥1.627tn.

That is about 15.1% of the ¥10.81tn of adjusted net debt reported at 30 June. The ratio is only intended to show scale. It should not be added mechanically to net debt: the balance sheet already included temporary funding, and public documents do not yet allow every bridge to be reconciled with every repayment.

Opulion view

This deal completes a sequence already visible in our coverage: the $6.5bn credit line, the OpenAI bridge, and the bond linked to ABB Robotics. SoftBank is working across its balance sheet, instrument by instrument, to preserve unusually large investment capacity.

The value of the new information can therefore be stated simply: OpenAI risk is no longer financed only at short maturities; it is migrating into senior unsecured debt at the holding company. The maturity profile improves, but the economic exposure remains and the funding cost becomes recurring.

The next decisive number will be the final coupon on each tranche. It will reveal the true price of this flexibility and connect SoftBank's investment ambition to the financial charge borne by shareholders.