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SoftBank issues $11.1 billion in bonds in OpenAI financing push

  • SoftBank has committed $64.6 billion to OpenAI as well as ​billions more in related AI infrastructure projects
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TOKYO: Tech investor SoftBank Group has issued $11.1 billion in dollar- and euro-denominated bonds, set to be the ​largest high-yield bond sale on record by an Asia-Pacific issuer ‌as it seeks to fund its mammoth bet on OpenAI.

The funding comes on top of a 1 trillion yen ($6.3 billion) bond issue aimed at retail investors this ​month, and is likely to prompt further scrutiny of SoftBank’s finances, ​which could be vulnerable should market sentiment turn against OpenAI ⁠and other AI firms.

SoftBank has committed $64.6 billion to OpenAI as well as ​billions more in related AI infrastructure projects, part of founder Masayoshi Son’s ​push to make the Japanese conglomerate a dominant investor in the sector.

SoftBank issued dollar-denominated senior notes of $1 billion at a 3-1/2-year term, $4.5 billion at 5-1/2 years and $4.5 ​billion at 7-1/2 years, a filing showed. The bonds pay interest rates ​of 8.625%, 9.25% and 9.75% respectively.

It also issued two €500 million tranches of euro-denominated senior ‌notes ⁠with terms of four and six years, yielding 7.125% and 8%, the filing showed.

The cost of insuring SoftBank’s debt against default has shot up since June, with the five-year credit default swap spread exceeding 400 basis ​points this week, ​up from around ⁠280 basis points in June and around 200 basis points in October 2025.

SoftBank’s share price, however, rose more ​than 6% in morning trading on Thursday after Tokyo ​markets ⁠were closed from Monday to Wednesday this week for national holidays.

SoftBank says it aims to keep the ratio of loans to the total value of ⁠its ​assets under 25% in normal conditions, rising ​to 35% in extraordinary circumstances.

At the end of June this year its loan-to-value ratio stood at ​13%.