OpenAI Files Confidential S-1 With SEC - IPO Race Is On

[JustMartin]

OpenAI announced on 8 June that it had confidentially submitted a draft S-1 registration statement to the US Securities and Exchange Commission, the first formal step toward what could become one of the largest stock market debuts in history. The company was characteristically blunt about it, writing in a short blog post that they expected it to leak so they were just announcing it themselves. Goldman Sachs, Morgan Stanley and JPMorgan are reportedly leading the offering, with a potential listing window between September and November 2026.

The numbers being floated around are genuinely staggering. OpenAI was valued at roughly $852 billion in a March 2026 funding round, with some analysts pencilling in a public valuation above $1 trillion. At the same time, internal documents suggest the company is projecting a $14 billion loss in 2026 and does not expect to reach profitability until 2029. Sam Altman himself was careful to say timing remains undecided and that going public might be a while yet.

What makes this moment so unusual is the context. Anthropic filed its own confidential S-1 just a week earlier on 1 June at a reported $965 billion valuation, and SpaceX began its IPO roadshow the same week at a valuation near $1.75 trillion. Three near-trillion-dollar AI-adjacent companies racing toward public markets in the same quarter is something nobody has seen before, and institutional investors have a finite capacity to absorb that much new equity supply at once.

Openai Submits Confidential S 1openai.com

[SilverRider]

The bit about them preemptively announcing because they expected it to leak is peak OpenAI energy. At least they are honest about it.

[Danny47]

A company projecting $14 billion in losses this year wants a trillion dollar valuation. I understand growth investing but that requires some serious faith.

[Tel86]

Anthropic vs OpenAI listing order matters more than people think. First mover gets the cleaner institutional allocation. Anthropic filed a week earlier so they have the edge there.

[Sophie86]

SpaceX absorbed xAI earlier this year so that valuation is partly an Elon AI play too. The whole thing is basically an AI IPO cluster dressed up as different companies.

[Peter]

The Elon Musk lawsuit being dismissed right before the filing is a significant detail. That was a genuine overhang on the IPO story and it cleared just in time.

[Dataset Cheetah]

Will retail investors even get a meaningful allocation? These things tend to get carved up by institutions before anyone outside of a brokerage premium tier sees a share.

[Red Builder]

Losing $14 billion a year to train frontier models and run inference at scale... I get it, but at some point the compute bill has to start shrinking as a proportion of revenue or the whole thesis falls apart.

[Kev5]

The confidential filing process exists specifically so companies can sort out issues with the SEC without the press picking everything apart. The fact OpenAI announced it themselves is a deliberate signal of confidence.

[Hollow Tiger]

Anyone else find it interesting that both Anthropic and OpenAI are doing this at the same time? Neither one wants the other to get the narrative advantage of being first.