Guide · Updated November 12, 2026
How to buy OpenAI stock.
You can't buy OpenAI shares on a stock exchange yet. These are the four realistic ways to get exposure today, plus how to be ready for the IPO.
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1. Buy Microsoft (MSFT)
Microsoft is OpenAI's biggest outside shareholder. It is the easiest indirect exposure, but OpenAI is only a small part of Microsoft's value.
2. Buy SoftBank (9984.T)
SoftBank has invested tens of billions in OpenAI. It trades in Tokyo and is available at many international brokers.
3. Pre-IPO secondary platforms
Accredited investors can sometimes buy private OpenAI shares or fund units on platforms like Forge or Hiive. Expect high minimums, fees and little liquidity.
4. Prepare for the IPO
Open a broker account that offers IPO access (e.g. Robinhood, SoFi, Fidelity in the US). Anthropic reserved ~20% for retail, a sign OpenAI may do the same.
FAQ
Can I buy OpenAI stock?
Not on a public exchange. You can get indirect exposure through Microsoft or SoftBank, or private shares if you are an accredited investor.
When can I buy OpenAI shares?
After its IPO, targeted for 2027. No date has been set.
Can I buy OpenAI stock on Robinhood?
Not yet. Robinhood may offer IPO access once OpenAI lists.
Read more: IPO investing guide · Anthropic IPO · OpenAI stock symbol · How to buy OpenAI stock · ANT stock price · News tracker
Not financial advice. Figures come from public reports and may change.
Sources
- The Verge, OpenAI valued at $1.25 trillion, as rival Anthropic nears its IPO — 2026-11-06
- CNN Business (via NewsLantern), OpenAI files confidential IPO registration — 2026-06-01
- Crypto Briefing, Sam Altman rules out 2026 IPO, eyes $1 trillion valuation first — 2026-09-12
- CNBC, Anthropic sets IPO price range of $70 to $78 — 2026-11-10
- Sacra, OpenAI revenue, valuation & funding — 2026-09-30