SoftBank Is Going All In on OpenAI, But at What Cost?

Would you buy OpenAI’s shares even though the transaction might expose you to a liquidity crunch? SoftBank Group Corp.’s founder Masayoshi Son did just that.

OpenAI completed the largest funding round in Silicon Valley history last month, raising $122 billion ahead of a blockbuster public listing expected by the end of this year. SoftBank, already one of the ChatGPT maker’s largest shareholders, promised to put in $30 billion more.

This funding round, on the heels of $30 billion invested in OpenAI last year, is stretching SoftBank’s balance sheet ever further. Based on estimates from research outlet CreditSights, the Japanese conglomerate is staring at a $32 billion funding shortfall, including bond maturities over the next two years and other investment deals the company has agreed to, such as a $5.4 billion acquisition of ABB Ltd.’s industrial robots unit.

As such, SoftBank recently signed a $40 billion bridge loan with banks to manage liquidity. This is a temporary solution, however, in that the jumbo debt will be due in a year.

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Credit markets are puzzling over how Son plans to manage his company’s cash flow. Its 87% ownership in Arm Holdings Plc, worth about $150 billion, is by far the biggest asset. But since the chip designer’s stock has so little public float, it doesn’t serve as a good collateral. SoftBank might only be able to raise another $5 billion if it increases an Arm-backed margin loan, assuming a 20% loan-to-value ratio, according to Bloomberg Intelligence. Meanwhile, selling Arm shares outright can be tricky because the action might trigger stock slumps and margin calls.