OpenAI IPO 2027 — How to Prepare
OpenAI is not yet publicly traded, but the preparations are underway. With a recent private valuation of around $500 billion, its IPO would be one of the largest tech listings in history — comparable to Saudi Aramco’s 2019 IPO ($1.7 trillion). This guide shows you how to position yourself today, which indirect routes exist, and what you can realistically expect from the listing.
Where does the OpenAI IPO stand today?
- Corporate restructuring: in 2025 OpenAI moved from Capped-Profit to For-Profit — a prerequisite for any classic stock-market flotation.
- Valuation: the tender offers in early 2026 imply an equity value of around $500 billion. For comparison: Meta went public in 2012 at $104 billion.
- Microsoft agreement: Microsoft retains roughly 49% of profits until the cap is reached. Renegotiating that clause is the main legal hurdle ahead of the IPO.
- Realistic timing: probably 2027–2028. Sam Altman himself has publicly stated that “there is no specific date planned”.
Anyone who buys €1,000 of MSFT indirectly buys roughly €200–300 of a stake in OpenAI’s profits. It is the only route available today that is open, liquid and fiscally clean. Direct pre-IPO shares are only available via secondary platforms (Forge, EquityZen, Hiive) — with substantial lock-ups and minimum investments starting at $25,000–100,000.
The 4 ways to position yourself today
| Route | How | Minimum amount | Risk |
|---|---|---|---|
| Microsoft (MSFT) | Ordinary share at any broker | Any (savings plan from €1) | Medium — diversified across Office, Azure and Cloud |
| Nvidia (NVDA) | Compute supplier for every GPT cluster | Any | High — fully exposed to AI capex |
| Forge / EquityZen / Hiive | Secondary market for employee shares | $25,000–100,000 | Very high — illiquid, accredited investors only |
| ARK Venture Fund (ARKVX) | Closed-end fund with ~3% in OpenAI | $500 (US only) | High — no direct trading, annual valuation |
For retail investors in Spain, Microsoft is the only truly accessible route. Forge and EquityZen are US-only and require “accredited investor” status ($1 million in net worth or $200,000 in income).
What to realistically expect from the IPO
If the IPO arrives in 2027, there are three likely scenarios:
Even in the bull case, the upside from day 1 would be limited for small investors — most IPOs open close to their subscription range, and the first two years afterwards are statistically volatile. Anyone waiting for the “IPO pop” usually misses the prior rally, which is already priced into MSFT and NVDA shares.
Pros and cons of betting on OpenAI
- Market leader in the foundational model layer (ChatGPT with 800 million WAU)
- 2025 revenue: ~$13 billion, growth +200%/year
- Distribution via Microsoft: in every Office 365 account
- Sora, Operator and Agents as adjacent products
- 2025 losses: ~$5 billion despite strong revenue growth
- Open-source pressure: Llama 4 and DeepSeek erode pricing
- Compute dependence: Nvidia and Microsoft are practically co-owners
- Regulatory risk (EU AI Act, copyright lawsuits in the US)
Frequently asked questions
Can I buy OpenAI shares today?
Directly: only through secondary markets for accredited investors in the US (Forge, EquityZen, Hiive) from $25,000–100,000. Indirectly: Microsoft (~49% of profits), Nvidia (compute supplier) and the ARK Venture Fund (for US investors, ~3% in OpenAI). For retail investors in Spain, Microsoft is the only practicable route.
When exactly will OpenAI go public?
There is no official date. Sam Altman stated in 2026 that “there is no specific date planned” — at the same time, the structural preparations are underway (conversion to For-Profit, renegotiation with Microsoft). Realistic timeframe: second half of 2027 to 2028. An early listing via SPAC merger is highly unlikely.
Is it worth waiting for the IPO?
Statistically, no. Pre-IPO valuations are already incorporated into the shares of the co-owners (MSFT, NVDA). Anyone who buys MSFT in 2026 at ~$500 and sees the OpenAI IPO arrive in 2027 with a bull-case valuation benefits directly — by the IPO itself the valuation will already be high. The classic “wait for the IPO” pattern usually misses the real rally.
What happens to the Microsoft–OpenAI agreement at the IPO?
That is the central legal question. Microsoft is entitled to 49% of profits until a cap is reached (estimated at $100 billion). Before the IPO, that agreement must be converted into an equity stake — typically at a discount to the IPO valuation. The result: Microsoft would then be the largest single shareholder with 25–35% of the equity.
Is preparing for the IPO with an MSFT savings plan a good idea?
It makes sense — but not solely because of OpenAI. Microsoft has four growing cash-flow machines thanks to Azure, Office, Copilot and LinkedIn. The OpenAI stake is a bonus, not the main reason. Savings plan from €25 a month on MSFT at Trade Republic, Scalable, ING — commission-free.
What are the biggest risks before the IPO?
(1) Delay of the AGI roadmap. (2) GPT competition from Anthropic, Google Gemini and open-source Llama. (3) Regulation in the US (copyright lawsuits from the New York Times, NYT, Authors Guild). (4) Sam Altman’s departure / corporate governance crisis (see November 2023). Any of these risks could push the IPO back by 12 to 24 months or halve the valuation.
Microsoft analysis, savings-plan setup, AI-sector correlation
Anyone who wants to bet indirectly on OpenAI needs a well-founded valuation of MSFT and NVDA — and ideally a plan for how much it should weigh in the portfolio.
- AI stock analysis — deep dive on Microsoft (AI strategy, Azure, Copilot)
- Best broker for savings plans — free plans on MSFT and NVDA
- Correlation matrix — how do MSFT/NVDA cover your AI exposure?
- DCA simulator — what would a savings plan on MSFT have returned between 2020 and 2026?