Written by Ralph Sun
The artificial intelligence sector is preparing for an unprecedented liquidity event. On Monday, June 8, 2026, OpenAI confidentially filed an S-1 with the Securities and Exchange Commission, officially initiating the process to become a publicly traded company.
This filing sets the stage for a historic collision of capital. Within a single 12-day window, the three most valuable private companies in the world have all moved to access public markets. Anthropic filed its confidential S-1 on June 1 at a $965 billion valuation. SpaceX, which operates the xAI business, will debut on the Nasdaq this Friday, June 12, targeting a $1.77 trillion valuation. Now, OpenAI enters the fray, seeking to convert its $852 billion private valuation into a $1 trillion public market capitalization.
Combined, these three mega-IPOs represent over $3.5 trillion in market value and could siphon more than $150 billion in fresh capital from public equities. For retail and institutional investors alike, the critical question is no longer whether AI is real, but how to position portfolios ahead of this massive capital rotation.
| Company | Filing Date | Valuation | IPO Date | Underwriters |
| Anthropic | June 1, 2026 | $965 billion | TBD (Q3/Q4 2026) | TBD |
| OpenAI | June 8, 2026 | $852B → $1 trillion | Q4 2026 (Sept target) | Goldman Sachs, Morgan Stanley |
| SpaceX | May 2026 | $1.77 trillion | June 12, 2026 | Goldman Sachs, Morgan Stanley |
The Anatomy of the OpenAI Filing
OpenAI’s transition from a non-profit research lab to a trillion-dollar public entity is the defining corporate narrative of the decade. The company, which ignited the generative AI boom with the launch of ChatGPT in late 2022, now boasts over 900 million weekly active users.
According to sources familiar with the filing, OpenAI has retained Goldman Sachs (GS) and Morgan Stanley (MS) as lead underwriters—the exact same institutions managing the SpaceX offering. While the company stated it has “not decided on timing yet,” citing the advantages of remaining private for certain initiatives, the confidential filing gives CEO Sam Altman the optionality to list as early as the fourth quarter of 2026.
In a post on X, Altman described this as the “third phase of OpenAI,” pivoting from research and product development toward making advanced AI “abundant, affordable, safe, useful, and easy enough for every person and organization to benefit from it.” To alleviate near-term liquidity pressure for employees, the company is also facilitating a tender offer at its latest $852 billion post-money valuation.
OpenAI has raised more than $180 billion in total funding and is still burning through cash to secure compute and build infrastructure. The company’s key products—ChatGPT and the Codex coding assistant—compete directly with Anthropic’s Claude and Google’s Gemini. CFO Sarah Friar has signaled that, like SpaceX, OpenAI plans to reserve a slice of its offering for retail investors: “Everybody wants to own part of a rocket company—I hope everyone wants to own part of ChatGPT.”
The Capital Rotation Threat
The sheer scale of these offerings presents a structural risk to existing technology stocks. When hundreds of billions of dollars are required to absorb new IPO supply, that capital must be sourced from somewhere.
“You can think of equities as long-duration assets,” noted Venu Krishna, head of US equity strategy at Barclays. When investors are presented with “pure-play” AI opportunities like OpenAI and Anthropic, there is a high probability of a capital rotation out of incumbent tech giants and peripheral AI beneficiaries. Analysts have already warned that “there might be too much supply of stocks and not enough buyers.”
This dynamic was already visible during Monday’s trading session. While the Nasdaq Composite (IXIC) rebounded 0.86% from Friday’s semiconductor massacre, Apple (AAPL) suffered a sharp “sell the news” reaction to its Worldwide Developers Conference. Despite unveiling “Siri AI” and the new Apple Intelligence platform, the lack of a firm 2026 release date and the exclusion of the Chinese and European markets sent Apple shares down nearly 5% from their intraday highs, closing at $301.54, down 1.89%. Investors are becoming increasingly ruthless in demanding immediate AI monetization, and the impending IPOs will only raise that bar.
Microsoft: The Ultimate Public Proxy
For investors unwilling to navigate the volatility of an IPO lock-up period, the public markets already offer a highly liquid proxy for OpenAI’s success: Microsoft (MSFT).
Through its multi-year, multi-billion-dollar investment agreements, Microsoft holds a reported 49% economic interest in OpenAI’s for-profit subsidiary. If OpenAI achieves its targeted $1 trillion valuation at IPO, the implied value of Microsoft’s stake would approach $500 billion—representing nearly 15% of Microsoft’s entire current market capitalization.
Furthermore, Microsoft captures the infrastructure upside. OpenAI’s S-1 filing implicitly acknowledges that the company is still burning through cash to secure compute and build infrastructure. The vast majority of that compute expenditure flows directly into Microsoft’s Azure cloud division. In essence, Microsoft wins twice: once on the equity appreciation of its OpenAI stake, and again on the guaranteed revenue stream from Azure.
Risks and Catalysts
The primary risk is valuation compression across the broader AI sector. If OpenAI IPOs at $1 trillion with approximately $15 billion in annualized revenue, it establishes a 67x revenue multiple as the benchmark for “pure-play” AI. This could either validate or destabilize existing AI stock valuations depending on post-IPO trading performance.
Marc Meyer, professor of entrepreneurship at Northeastern University, cautioned that the current enthusiasm “feels similar” to the early 2000s dot-com era. However, Karthik Krishnan, associate professor of finance at the same institution, offered a crucial counterpoint: “Anyone of us who’s used ChatGPT knows this is not just a website with a ‘.com’ attached to it. It’s a real thing, and we’re using it, and we’re paying for it.”
Near-term catalysts include: SpaceX’s IPO reception on Friday (June 12), which will set the tone for all subsequent AI mega-IPOs; Wednesday’s May CPI data, which will determine whether rate hike fears intensify or subside; and Oracle (ORCL) earnings on Wednesday, which will provide a read on enterprise AI infrastructure demand.
The Verdict
The AI IPO arms race is a double-edged sword. It validates the immense economic value of generative AI, but it also threatens to drain liquidity from the broader market. For public market investors, the optimal strategy is to own the infrastructure and intermediaries that profit regardless of which AI company wins the foundation model war.
| Ticker | Verdict | Price Target | Rationale |
| MSFT (Microsoft) | BUY | $475 | 49% economic interest in OpenAI + guaranteed Azure revenue from AI compute. Ultimate “picks and shovels” proxy. |
| GS (Goldman Sachs) | BUY | $520 | Lead underwriter for both SpaceX ($1.77T) and OpenAI ($1T) IPOs. Fee pool drives significant EPS beats in H2 2026. |
| AAPL (Apple) | HOLD | $315 | WWDC “sell the news” justified. Siri AI has no firm 2026 global rollout. 40x P/E stretched without immediate AI monetization. |
| NVDA (Nvidia) | BUY | $260 | All three IPO companies require Nvidia silicon. Capital raised flows directly into Nvidia’s income statement. |
Disclaimer: This article is for informational purposes only and does not constitute investment advice. The opinions expressed are those of the author and do not reflect the views of Equities Orbis or its affiliates. Always conduct your own research before making investment decisions.
