SoftBank’s effort to secure a $6 billion margin loan backed by its stake in OpenAI has stalled, Bloomberg reported Tuesday, as lenders pushed back on the valuation assigned to the unlisted AI company. The news sent SoftBank shares down more than 9% in Tokyo trading and raised fresh questions about how the AI industry’s most aggressive spender will fund its ambitions.
🔍 THE BOTTOM LINE: For months, SoftBank has been the atom-smashing machine of AI investment — pouring tens of billions into OpenAI, the Stargate infrastructure project, and everything between. If banks won’t lend against SoftBank’s crown-jewel AI asset, the whole house of cards starts looking wobbly.
What Happened
SoftBank had been negotiating with a consortium of banks to secure a margin loan using its OpenAI shares as collateral. Bloomberg reported that lenders raised concerns about how to value the stake given OpenAI’s private-company status and the uncertainty surrounding its anticipated IPO.
The loan was originally reported at $10 billion, then cut to $6 billion, and now appears stalled entirely. SoftBank is reportedly weighing alternative fundraising options.
Why Banks Are Nervous
OpenAI is on track for what could be the largest IPO in history — filings suggest a valuation above $1 trillion. But private-market valuations are inherently speculative, and banks are acutely aware of what happens when technology unicorns meet public-market reality.
Lenders are also reportedly concerned about SoftBank’s overall leverage. The company’s concentrated AI bets — including its disputed $30 billion GPU rental deal with Google and SpaceX — have raised eyebrows among credit analysts. CNBC reported last week that S&P Global Ratings has revised SoftBank’s credit outlook, flagging liquidity concerns.
The Stargate Problem
At stake is more than SoftBank’s balance sheet. The company is the financial engine behind Stargate, a multibillion-dollar AI infrastructure joint venture with OpenAI and Oracle. If SoftBank’s financing taps run dry, Stargate’s timeline could slip — and that has downstream effects on the entire AI industry’s compute supply.
This connects directly to the broader question of whether the AI infrastructure boom is sustainable, with half of US data centre projects already delayed or cancelled earlier this year.
What This Means for the AI Investment Cycle
SoftBank’s loan stall is the most concrete signal yet that traditional finance is starting to push back on AI exuberance. Venture capital has been flowing freely — Q1 2026 saw record AI VC funding — but debt markets are more conservative, and margin loans against illiquid private-company stakes are a different risk class entirely.
For New Zealand investors, it’s a reminder that the AI boom is increasingly funded by leverage, not just equity. KiwiSaver and superannuation funds with exposure to SoftBank — or to funds that hold SoftBank — could feel the ripple effects of a deleveraging cycle.
❓ FAQ
Is SoftBank in trouble? Not immediately. It’s a $100B+ company with diversified holdings including Arm. But the loan stall signals that its preferred financing mechanism for AI investments has hit a wall.
What happens to the Stargate project? It likely slows. SoftBank needs to find alternative funding or reduce its commitment.
Does this affect OpenAI? Indirectly. SoftBank is one of OpenAI’s largest investors. If SoftBank’s financial flexibility is constrained, OpenAI loses a key backer for future capital needs.
Is this the AI bubble popping? Not yet. But it’s the kind of event that precedes a correction — a major investor’s creditworthiness being questioned.
🔍 THE BOTTOM LINE: SoftBank’s margin loan stall is the first real crack in the AI investment narrative. When the most aggressive bettor in the house can’t get a loan, everyone else should check their own exposure. The question isn’t whether AI has long-term value — it’s whether the current pricing of that value can survive contact with traditional financial discipline.
