The Confidential Filing That Wall Street Has Been Waiting For
OpenAI, the San Francisco-based artificial intelligence research and deployment company that ignited the generative AI revolution with the launch of ChatGPT in November 2022, has confidentially filed its S-1 registration statement with the Securities and Exchange Commission, according to multiple sources familiar with the matter. The filing, submitted on June 18 under the Jumpstart Our Business Startups Act, which allows companies with less than $1.07 billion in annual revenue to file confidentially, sets the stage for an initial public offering that could value the company at approximately $300 billion.
The target valuation would make OpenAI the most valuable company to go public since Alibaba's 2014 listing, and the second-largest IPO in U.S. overall, trailing only SpaceX's record-setting $47.5 billion raise earlier this month. The juxtaposition is striking: within the span of two weeks, the American capital markets have absorbed the IPOs of the two most consequential technology companies of the decade, one dedicated to reaching Mars and the other to building machines that can think.
"The IPO calendar for the second half of 2026 is shaping up to be the most consequential in history," said Dr. Jay Ritter, a professor of finance at the University of Florida and a leading authority on IPO markets. "SpaceX and OpenAI are not just large companies. They are generational technology platforms that are redefining their respective industries. Having both go public in the same quarter is unprecedented."
The Road to $300 Billion
OpenAI's journey from a nonprofit research lab to a $300 billion IPO candidate has been the defining narrative of the artificial intelligence industry. Founded in 2015 as a nonprofit with a mission to ensure that artificial general intelligence benefits all of humanity, the organization restructured in 2019 to create a capped-profit entity, OpenAI LP, that could accept outside investment. Microsoft invested $1 billion that year, a deal that seemed generous at the time and now looks like the most lucrative venture investment in history.
The company's revenue trajectory is staggering by any measure. According to financial details that have been shared with prospective underwriters, OpenAI generated $54.2 billion in revenue in the fiscal year ending March 31, 2026, up from $19.7 billion in fiscal 2025 and $3.7 billion in fiscal 2024. The primary driver is ChatGPT, which has amassed more than 1.8 billion monthly active users and contributes approximately 65 percent of total revenue through subscription plans, API access, and enterprise licensing. The remaining revenue comes from the company's model-as-a-service platform, which allows businesses to fine-tune and deploy OpenAI's models on their own infrastructure.
Profitability has improved substantially as the company has scaled its inference infrastructure and negotiated favorable pricing for Nvidia's latest GPU hardware. OpenAI reported net income of $7.1 billion for fiscal 2025 and is on track to deliver net income of approximately $18.5 billion in fiscal 2026, representing a net margin of 34 percent. The S-1 is expected to disclose that the company has accumulated $28 billion in cash and short-term investments, providing a substantial cushion for the capital-intensive work of training frontier models.
The Governance Structure That Almost Broke Everything
The IPO filing is likely to draw intense scrutiny to OpenAI's unusual governance structure, which was the focus of the dramatic boardroom crisis in November 2023 when CEO Sam Altman was briefly fired and then reinstated following a employee revolt. The company is governed by a nonprofit board that oversees the for-profit subsidiary, a structure that was designed to align the company's profit motive with its charitable mission but has proven unwieldy in practice.
In the S-1, OpenAI is expected to propose a governance overhaul that would reduce the nonprofit board's role to a supervisory capacity while transferring operational control to a newly constituted for-profit board that includes independent directors with public company experience. The overhaul is designed to satisfy SEC requirements for public company governance and to address concerns from institutional investors about the concentration of decision-making authority in the hands of a small group of nonprofit directors who have no fiduciary duty to shareholders.
"The governance question is the single biggest risk factor in the OpenAI IPO," said Charles Elson, a corporate governance expert at the University of Delaware. "Investors are being asked to buy shares in a company where the ultimate control rests with a board whose mission is to protect humanity from the technology the company is selling. That creates a fundamental conflict of interest that no amount of disclosure can fully resolve."
The AI Arms Race and Competitive Dynamics
OpenAI's IPO comes at a moment of extraordinary competitive intensity in the artificial intelligence industry. The company faces challenges on multiple fronts: from established technology giants including Google's DeepMind, which has made significant progress with its Gemini line of models; from Meta's open-source Llama ecosystem, which has eroded OpenAI's technological lead by making frontier-level models freely available; and from a new generation of well-funded startups such as Anthropic, xAI, and Mistral AI, each of which has attracted significant investment and technical talent.
The competitive landscape is further complicated by the rapid commoditization of large language models. The cost of training and running inference on frontier models has fallen by approximately 75 percent over the past two years, a trend that benefits consumers but compresses margins for model providers. OpenAI has responded by moving up the stack into applications, launching ChatGPT Enterprise, a suite of productivity tools aimed at competing with Microsoft's Copilot, and the ChatGPT API, which allows developers to build custom applications on top of the company's models.
"OpenAI's moat is not its models but its distribution," explained Dr. Fei-Fei Li, a professor of computer science at Stanford University and a pioneer in computer vision. "ChatGPT has become the default interface for AI interaction across hundreds of millions of users. That installed base creates a data flywheel that is very difficult to replicate. Every interaction improves the model, and every improvement makes the product stickier. That is a powerful competitive advantage."
Underwriters, Timeline, and the Retail Question
Goldman Sachs and Morgan Stanley have been selected as the lead underwriters for the offering, with JPMorgan Chase, Citigroup, and Barclays serving as joint bookrunners. The company is targeting a late September listing on the Nasdaq under the ticker OAI, though the timeline could shift depending on SEC review and market conditions. The confidential filing gives the company flexibility to delay or accelerate the offering without public scrutiny.
The size of the offering has not been finalized, but sources indicate that OpenAI is planning to raise between $25 billion and $30 billion by selling approximately 10 percent of the company. That would make it the second-largest IPO by capital raised in U.S. history, behind only SpaceX's $47.5 billion offering. The pricing range is expected to be set in late August, following the completion of the SEC review process and a series of institutional roadshow presentations.
One question that remains unresolved is how retail investors will participate. The success of the SpaceX IPO, in which retail investors accounted for an estimated 35 percent of total trading volume in the first week, has emboldened a new generation of IPO participants who expect access to allocations that were historically reserved for institutional buyers. Robinhood and Fidelity have both confirmed that they expect to offer OpenAI shares to their customers on the first day of trading, and the level of retail demand is expected to be even greater than for SpaceX given ChatGPT's ubiquity among mainstream consumers.
Risks That Could Ground the Deal
For all the optimism, the OpenAI IPO faces a set of risks that are unique in the history of public offerings. The regulatory environment for artificial intelligence remains highly uncertain, with the European Union's AI Act now in effect and the U.S. Congress considering the bipartisan Algorithmic Accountability Act, which would impose liability on AI companies for harms caused by their models. OpenAI has already faced regulatory inquiries in multiple jurisdictions over ChatGPT's data collection practices and content moderation policies.
There is also the existential question that hangs over every conversation about OpenAI's future: if the company succeeds in its mission to develop artificial general intelligence, the financial dynamics of the business, indeed the entire industry, would be transformed in ways that are impossible to predict. OpenAI's S-1 is expected to include a risk factor disclosure that acknowledges this uncertainty, warning investors that the achievement of AGI could fundamentally alter the company's business model and competitive position.
"It is difficult to think of another IPO in history where the prospectus includes a risk factor that says, 'If we succeed at our primary objective, our business might become unrecognizable,'" said Michael Klausner, a professor of law and business at Stanford Law School. "That is the level of uncertainty that OpenAI investors are being asked to accept. The upside is commensurately large, but the range of possible outcomes is wider than anything we have seen in the public markets."