SoftBank: a billion in annual coupons after the final OpenAI payment

On 1 October, SoftBank Group paid the final $10 billion tranche of its latest commitment to OpenAI. Cumulative investment now reaches $64.6 billion, representing approximately 13% of the company according to SoftBank. Masayoshi Son’s conviction comes with a concrete task: financing the stake while OpenAI remains privately held.

The bond issue announced on 24 September raises $10 billion and €1 billion. In exchange, it creates approximately $1.03 billion in annual coupons, translated at the announced exchange rate. That cost belongs to the entire issue, whose uses include OpenAI and general corporate purposes. Attributing every dollar of interest solely to OpenAI would overstate what the announcement establishes.

Following our coverage of the September financing and the difference between value and cash, a further question can now be measured: what does the extra time cost, and which channels can supply the money?

OpenAI is an asset; coupons are payments

SoftBank Group is a Japanese investment holding company. It owns stakes including Arm and invests through its Vision Funds. OpenAI develops ChatGPT and artificial intelligence models. SoftBank holds an economic interest in OpenAI through Vision Fund 2; it does not own the whole company or its cash.

The latest quarterly report gives a snapshot at 30 June: $44.6 billion invested and $89.6 billion of fair value. The $45 billion difference is a cumulative unrealised gain. It measures an increase in the value of securities still held, without equivalent sale proceeds received by the holding company.

The July and October payments subsequently raise cost to $64.6 billion. They do not provide a new fair value for the stake. Adding $20 billion to June’s valuation and presenting it as current value would manufacture an estimate that ignores possible changes in price, capital and rights.

The distinction matters when interest falls due. Selling securities can turn value into cash. Increasing their estimated value does not. The documents cited here do not establish an OpenAI distribution schedule that would cover this debt service.

The precise cost of waiting

September’s bonds pay fixed coupons. The table shows the cost of a full year; payments are semiannual, in April and October, under the issue terms.

Opulion calculation: principal multiplied by coupon for each tranche, then summed by currency. This produces $941.25 million and €75.625 million a year. At $1.1383 per euro, the exchange rate cited in the announcement, that is $1,027.334 million.

This benchmark excludes issuance fees, taxes, any hedges and future exchange-rate changes. It does not measure interest on all SoftBank debt. Euro bonds create a euro obligation; translation into dollars merely makes comparison easier.

The dollar tranche maturing in 2034 carries the highest coupon and alone costs $438.75 million annually. A long maturity puts principal repayment further away. It still leaves coupons to finance throughout the wait.

Do not count the repaid bridge twice

March’s bridge enabled rapid investment before the group reorganised its funding. The 1 October announcement confirms that all borrowings under this facility have been repaid and that the unused $10 billion capacity was cancelled on 30 September.

The bridge’s historical $40 billion capacity cannot therefore be added to September’s issue as though both remained fully outstanding. Credit capacity, amounts drawn and remaining debt are different measures.

Risk has changed its timetable. The holding company has more time before these bond repayments, but must preserve resources for interest, other commitments and subsequent investments. OpenAI’s commercial success and SoftBank’s financial capacity remain separate tests.

Falling value can also demand money

The quarterly report describes another arrangement signed on 5 August: a $10 billion loan to a Vision Fund 2 subsidiary, guaranteed by SoftBank Group and repayable in August 2028. The collateral specified on page 69 is the borrower’s cash collateral account.

Its covenants include cash collateral provision or mandatory repayment in certain circumstances, including a significant decline in the fair value of the referenced OpenAI preferred shares. This description establishes neither a trigger event nor, by itself, the amount actually drawn at a later date.

It does reveal a mechanism: a decline in a private asset can become more than an accounting entry and require liquidity. Assessing the holding company’s resilience means reading available cash, guarantees, commitments and actual financing together. A large portfolio valuation cannot answer all those questions.

DigitalBridge brings a business, not its clients’ cash

The acquisition of DigitalBridge, completed on 30 September for approximately $3.1 billion of common shares, adds a digital infrastructure manager. It brings SoftBank closer to financing data centres and networks; we have explained what was actually acquired.

A manager can earn fees and profits from capital entrusted by clients. That capital nevertheless remains distinct from the economic balance sheet of its owner. SoftBank cannot treat fund assets as an unrestricted reserve for its own coupons.

The next balance sheet must complete the picture

Our interpretation is that SoftBank has bought time to develop and potentially monetise its AI exposure. The issue’s annual cost makes that wait tangible. It alone cannot prove that the structure is either fragile or comfortable: that conclusion requires an updated view of all resources and commitments.

The next accounts need to show remaining holding-company cash, adjusted debt, guarantees and spending after September’s transactions. Their date matters: a 30 September balance sheet precedes the 1 October OpenAI payment, which must be identified as a subsequent event rather than inserted into closing cash.

For OpenAI, the relevant evidence will be cash generation, requirements for further capital and effective liquidity options for shareholders. A higher subsequent valuation could improve SoftBank’s estimated wealth. On its own, it would not pay the $941.25 million and €75.625 million due each year on this issue.