
Key Takeaway
OpenAI is one of the most closely watched private companies in the market right now because it sits at the center of the AI boom. It has massive consumer reach through ChatGPT, a fast-growing enterprise business, and a fresh headline valuation that puts it among the most valuable private companies in the world.
That combination is exactly why retail investors keep asking how to buy OpenAI stock. The short answer: you can’t buy it on an exchange today, but there are a few realistic ways to get exposure or position yourself for a future listing. Here’s what OpenAI does, whether it’s public, when an IPO might happen, and the closest ways investors can get in now.
What is OpenAI?
OpenAI builds frontier AI models and products. Its core offerings include ChatGPT, APIs for developers, Codex, and enterprise deployment tools. The company says it is becoming core AI infrastructure, with consumer, enterprise, developer, and compute businesses reinforcing one another.
OpenAI was founded in 2015 and is based in San Francisco, California. It says ChatGPT has more than 900 million weekly active users and over 50 million subscribers, while enterprise accounts for more than 40% of revenue and is on track to reach parity with consumer by the end of 2026. OpenAI has not disclosed full-company revenue or employee count in the sources reviewed.
Is OpenAI publicly traded?
No, OpenAI is currently a privately held company and does not have a public ticker. Its structure page says the company was founded in 2015 as a nonprofit, and its for-profit arm is now OpenAI Group PBC, a public benefit corporation controlled by the nonprofit OpenAI Foundation.
OpenAI’s structure is unusual: the Foundation holds a 26% equity stake, Microsoft holds roughly 27%, and the remaining 47% is held by current and former employees and investors. The Foundation also controls the board through special voting and governance rights, so OpenAI is best described as foundation-controlled.


