OpenAI IPO
What is the OpenAI IPO?
OpenAI developed ChatGPT and the GPT-4/o series of large language models, which have become the most widely used AI tools globally. With over 300 million weekly users and growing enterprise revenue, OpenAI is valued at approximately $300 billion as of 2026.
Why does it matter for investors?
OpenAI's IPO is anticipated in 2026 Q4. Its scale and valuation would make it an immediate top-40 NASDAQ-100 candidate, triggering the Fast Entry Rule. Passive ETF forced buying could be among the largest in NASDAQ history given OpenAI's valuation.
What to watch for
- ›IPO price range and final offer price
- ›Opening day trading volume and first-day return
- ›Lock-up expiration date (typically 180 days post-IPO)
- ›NASDAQ-100 Fast Entry Rule eligibility and timeline
What is the OpenAI IPO valuation?
Check the valuation listed on this page. Valuations for pre-IPO companies are based on the most recent private funding rounds.
What is the NASDAQ Fast Entry Rule?
Starting May 1, 2026, companies ranking in the top-40 NASDAQ-100 by market cap can be added within 15 trading days of their IPO with a 3× weight multiplier, forcing passive ETFs like QQQ to buy large positions immediately.