The operational sequence for a data center business has a hard prerequisite: facilities have to be built, energized, and running before they generate revenue. SoftBank's SB Energy is filing for an IPO without having cleared that bar. The company's prospectus discloses that its data center business has generated no revenue and that none of its data centers are operational, and it characterizes the company as "substantially dependent" on OpenAI.
Where the dependency sits
The "substantially dependent" characterization is SB Energy's own language from the filing. That phrasing signals concentration risk: the company is disclosing that its forward commercial picture runs through one named customer, OpenAI, at a point before any of the facilities that would serve that customer are open.
Infrastructure developers have raised public equity before operations begin. The argument in those cases rests on the contracted pipeline and the credibility of the anchor customer. SB Energy's named anchor is OpenAI. What the filing cannot provide is an operational record from the data centers themselves, because none are running.
The constraint is physical before it is financial. Data centers do not produce revenue until they are built and live, and SB Energy has disclosed that its data centers are not yet live. For the IPO to translate into revenue, the facilities have to come online and the OpenAI relationship has to produce actual throughput. Those are the conditions the filing sets. Neither has been met.