SoftBank's $60 billion AI funding plan faces financial reckoning as debt obligations mount

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SoftBank reports first-quarter earnings Thursday as analysts scrutinize how the Japanese conglomerate will fund its massive investments in OpenAI. With over $60 billion committed to AI projects and $30 billion in debt obligations due in late 2026, investors are questioning the sustainability of founder Masayoshi Son's debt-fuelled AI bet amid rising leverage and market volatility.

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SoftBank's AI Funding Strategy Under Intense Scrutiny

SoftBank reports its first-quarter earnings Thursday, and the focus has shifted from profit numbers to a more pressing question: how will the Japanese technology investor fund its enormous financial commitments to OpenAI

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. Analysts expect net profit of 148.4 billion yen, approximately $941.2 million, for the April-June quarter

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. But the headline figure masks deeper concerns about SoftBank's ability to sustain its aggressive AI funding plans while managing mounting debt obligations

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Under founder Masayoshi Son's leadership, SoftBank has committed more than $60 billion to OpenAI and related AI infrastructure projects, making it one of the biggest backers of the ChatGPT maker

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. The company faces roughly $22.5 billion in near-term obligations to OpenAI by year-end, alongside $30 billion of broader debt obligations due in the second half of 2026

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. Despite record net profit in the year ended March 2026, SoftBank's share price has plummeted by almost half since early June, and the cost to insure its debt against default has soared

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Leverage and Loan-to-Value Ratio Concerns Mount

SoftBank's financial reckoning centers on its rising leverage and complex funding structure. The company maintains a $40 billion bridging loan that matures in March 2027 and has arranged a $20 billion margin loan secured against its stake in chip designer Arm

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. However, SoftBank's attempt to use its OpenAI holding as collateral for another loan has stalled as lenders have grown cautious about extending credit backed by private companies

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The loan-to-value ratio has become a critical metric for assessing SoftBank's financial health. While the company claims to maintain a ratio below its self-imposed 25% limit, S&P Global Ratings calculated the figure at 33% at the end of March when including margin loans backed by investee company shares—nearly double SoftBank's internal figure of 17%

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. S&P expects this to have dropped to between 20% and 25% in June, partly due to rising Arm share prices that improved the debt-to-asset value ratio

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"We think Arm has a solid credit profile but OpenAI is very weak. It's a startup with significant AI innovation risk and lots of competition," said Makiko Yoshimura of S&P Global Ratings

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. This assessment highlights the precarious nature of SoftBank's debt-fuelled AI bet, where the company has pledged its most valuable holding—Arm shares—against its riskiest investment

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AI Market Volatility Threatens SoftBank's Balance Sheet

Analysts point to SoftBank's vulnerability to AI market volatility and potential asset revaluations. "If Arm's valuation drops, the value of the loan against it does not," warned Amir Anvarzadeh of Asymmetric Advisors. "A significant drop in the price of its assets could mean a liquidity squeeze"

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. Fitch Ratings has identified an AI market correction as a major credit risk, citing rising valuations, the scale of AI capital expenditure, and uncertainty around AI company returns

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Competition from Chinese AI models adds another layer of risk to SoftBank's financial commitments to OpenAI. Much cheaper and similarly effective Chinese AI models could spark a price war, hitting the margins of frontier developers like OpenAI and reducing demand for the chips that power them

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. "SoftBank, Arm and memory stocks are likely to continue to come under pressure until end users and corporates show that this is the beginning of a productivity surge," wrote MST Financial analyst David Gibson

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OpenAI Valuation Debate Intensifies

The sustainability of SoftBank's AI funding strategy hinges partly on whether OpenAI can secure additional funding from other parties at a higher OpenAI valuation

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. OpenAI is reportedly seeking an IPO valuation of $1 trillion, up from its current $852 billion valuation, though a New York Times report suggests this may be delayed to next year

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. However, skeptics question these figures. "The true value of OpenAI is perhaps no more than $300 billion, judging by the smaller IPO plans of the Chinese players," said Anvarzadeh

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Masayoshi Son remains defiant about his massive investments in OpenAI, recently dismissing talk of an AI bubble as "blasphemy"

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. He predicts AI will cost $5 trillion annually by 2040, making SoftBank's current borrowing appear modest by comparison

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. Market sentiment remains divided: 15 out of 20 sell-side analysts polled by LSEG maintained buy or strong buy ratings on the stock in August, betting that Son's access to capital and OpenAI upside outweigh balance sheet strain

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. Chief Financial Officer Yoshimitsu Goto noted at last quarter's briefing that "our loan to value and cash position have been improving" as of March

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. Yet critics see a circular dependency: SoftBank borrows to fund OpenAI, whose rising value underpins those very loans, creating a structure where instability in one component quickly spreads to others

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