OpenAI disclosed on Monday that it had confidentially submitted a draft S-1 registration statement to the Securities and Exchange Commission, placing the ChatGPT maker formally inside a pipeline of A.I. and aerospace listings that CBS News estimates at roughly $3.6 trillion in combined paper value. The company, last valued at $852 billion in a March funding round, did the disclosure itself rather than wait for the inevitable leak. “We recently submitted a confidential S-1. We expect it to leak so we’re just announcing it,” OpenAI said in a Rule 135 statement on its site.

The same statement managed expectations on timing. “We have not decided on timing yet; it may be a while because there are things we want to do that are likely easier as a private company,” the company wrote. CNBC reports that Goldman Sachs and Morgan Stanley are advising on a potential fall debut anyway.

The pipeline OpenAI is joining is itself the story. Anthropic disclosed its own confidential filing on June 1 at a reported $965 billion valuation. SpaceX is expected to begin trading days from now at an anticipated $1.75 trillion. Bloomberg has compared the concentration of these blockbuster debuts to the dot-com era’s, and the comparison isn’t flattering to anyone hoping the cycle ends gently. The 1999–2000 IPO surge ended with the Nasdaq down roughly 78 percent from its March 2000 peak.

OpenAI’s own financials have moved at a pace that makes the listing math legible. Annualized revenue rose from about $2 billion at the end of 2023 to roughly $25 billion by early 2026, with monthly revenue near $2 billion earlier this year, according to CBS News. Sarah Friar, the chief financial officer, told The Associated Press in April that the company was “acting with the good hygiene of a public company,” and that its current valuation would place it among the 15 largest S&P 500 constituents.

The capital backdrop is similarly stark. Amazon’s February 8-K disclosed an equity commitment letter under which Amazon.com NV Investment Holdings agreed to purchase $35 billion of OpenAI Series C Preferred Stock, part of a total $50 billion committed investment, terminating December 31, 2028 if undrawn. That kind of balance-sheet entanglement is why analysts read the S-1 as less optional than it looks. Nate Elliott, an analyst at Emarketer, told Fortune the filing arrives at a “precarious moment” as OpenAI cedes ground to Google and Anthropic, and the company “doesn’t have a lot of other places to look for the enormous capital required to support its costs.”

Two days before the filing, a jury dismissed Elon Musk’s lawsuit against OpenAI on statute-of-limitations grounds, removing what CNBC called the single most visible legal obstacle to a listing. The sequencing wasn’t accidental. Confidential S-1s get drafted on the assumption that the courtroom will cooperate; this one did.

Sources