The IPO that tells you how the AI trade is financed
This is the clearest single document yet showing that AI infrastructure debt is being underwritten on the chipmaker's balance sheet rather than the borrower's.
SB Energy, the SoftBank-backed power and data-centre developer, filed for an IPO on Tuesday. The numbers in the filing: net losses of roughly $3.2bn in the first half of 2026, revenue of about $139m — nearly all of it from the legacy energy business — and not one operational data centre. (CNBC) The risk factors are more useful than the accounts. SB Energy says it is "substantially dependent" on OpenAI, which is simultaneously its anchor tenant and an equity investor, and whose CEO was an early personal backer. The filing states plainly that "near-term revenues, project-level financing arrangements, and development plans are significantly linked to OpenAI's continued performance under our lease." Then the third leg. Nvidia said in August it would provide $105bn of financing for the OpenAI data centre in Ohio that SB Energy is building. The company's own CEO explained why the chipmaker is in the structure at all: it "helps us to unlock things like investment-grade financing." Read that as plumbing. A developer with no operating assets and $3.2bn of six-month losses cannot borrow at investment grade on its own credit. It can borrow at investment grade against a lease from a private company that does not publish accounts, provided the chip vendor stands behind the paper. The credit being priced is Nvidia's. The cash flows are OpenAI's. The equity risk is about to be sold to public markets. The filing does not say how Nvidia's $105bn is structured — guarantee, backstop, direct lending or some combination — and that distinction determines who eats the first loss. It is the single most important unknown in the document.