OpenAI is an artificial intelligence research company founded in 2015 by Sam Altman and others, building the GPT family of large language models and ChatGPT (920 million weekly active users). The company generated over $20 billion in annualized recurring revenue in 2025, growing 3x year-over-year (OpenAI). Valued at $840 billion in its March 2026 Series C ($110 billion raised), OpenAI stock is not yet publicly traded but an IPO is expected in 2026. Accredited investors can access OpenAI pre-IPO shares through UpMarket, a FINRA-registered broker-dealer, with a $50,000 minimum investment.
OpenAI Valuation History
| Event | Date | Price/Share | Valuation |
|---|---|---|---|
| Series A-1a | Jul 2019 | $67.00 | - |
| Series A-1b | Jul 2019 | $150.00 | - |
| Series A-2 | Jul 2021 | $187.86 | - |
| Series A-3 | Jul 2021 | $306.86 | - |
| Series B | Oct 2024 | $47.14 | $157B |
| Series C | Feb 2026 | $687.69 | $840.0B |
Source: Sacra, Crunchbase, COI filings. OpenAI's complex share structure includes multiple sub-series. Prices vary by share class.
OpenAI Revenue and Growth
Source: OpenAI, Fortune, Crunchbase. ARR progression. Estimates not audited.
Why Investors Are Watching OpenAI
Private market investments carry meaningful risks, including illiquidity and possible total loss of capital.
How to Invest in OpenAI Through UpMarket
OpenAI shares are not on public exchanges. UpMarket provides accredited investors access through secondary market transactions.
$200K+ annual income ($300K jointly) or $1M+ net worth excluding primary residence.
Sign up at upmarket.co. Digital process, under 10 minutes. FINRA-registered broker-dealer, 1,000+ investors since 2019.
Individualized due diligence, Caplight market data, Sacra research, UpMarket valuation estimate.
PPM review, fee analysis, and portfolio-fit evaluation support.
Minimum typically $50,000. Wire or ACH. Monitor via UpMarket portal.
Pre-IPO investments are illiquid, speculative, and involve risk of total loss of capital.
About UpMarket
UpMarket's mission is to unlock the private markets for individual investors.
We provide access to a range of asset classes and investment strategies that span private equity, hedge funds, crypto, real estate, and other alternative assets.
The problem
- A large barrier to entry due to high investment minimums
- Time-intensive because sourcing deals is a lot of work even if you've got a great network, and
- Costly because of investment-related diligence costs, paperwork, and legal fees
The solution
- Offering lower investment minimums
- Sourcing and conducting diligence on opportunities for investors, empowering them to pick and choose from pre-screened opportunities
- Making the investment process entirely digital, straightforward, and easy to manage from a single portal
UpMarket Investment Curation Process
Upmarket curates and conducts diligence on every investment opportunity we offer.
We review every offering's strategy, risk management, liquidity management, fees and expenses, valuation methodology, tax matters, as well as the fund's third-party providers including legal counsel, auditor, administrator, and custodian.
We aim to offer our clients investments from disciplined managers that pursue unique strategies across an array of asset classes.
Our goal is to empower you to build a portfolio that best meets your individual Investment objectives.
OpenAI Stock FAQ
OpenAI in the News
OpenAI Leadership Team
Companies Related to OpenAI
Bottom Line: OpenAI Stock
OpenAI has become the defining AI company of this era, with ChatGPT reaching 920 million weekly active users and annual recurring revenue exceeding $20 billion in 2025, tripling year-over-year (OpenAI). The company raised $110 billion at an $840 billion valuation in March 2026, the largest private fundraise in history.
With an IPO expected by end of 2026, a $10 billion PE joint venture in progress, and revenue targeting $100 billion by 2027 (Sam Altman), OpenAI represents the highest-profile pre-IPO company in artificial intelligence.
Accredited investors can access OpenAI shares through UpMarket, a FINRA-registered broker-dealer that has brokered over $1 billion in alternative investments since 2019. All private market investments involve risk, including potential loss of principal. Past performance is not indicative of future results.
I want to buy OpenAI stock ↑Any financial forecasts or financial returns displayed on this website are for illustrative purposes only, and are not a guarantee of future results. Past performance is not indicative of future performance. Alternative investments possess a certain level of risk, and cannot guarantee investment objectives or return on capital. This website is only available to certain qualified investors.
The information on this website does not constitute investment advice. The sole basis for the purchase of any securities is the final base sale document. Investors should make their own independent evaluation and analysis, consult financial, tax, investment consultants, etc., and decide whether to invest.
Pro Forma forecasts have been deducted management fees, but may include other fees. Fund returns, dividends and other forecasts are for reference only. Investment returns may be impacted by many uncertain factors. Investors must be willing and able to withstand the risk of potential investment losses.