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The first time a private company sells shares to public investors. Marks the transition from private (owned by founders, employees, and VCs) to public (owned by anyone who can buy the stock).
Why It Matters
An IPO is how giant private companies like SpaceX, Anthropic, and OpenAI become buyable by regular investors. The mechanics — picking underwriters, filing an S-1 with the SEC, pricing the offering, and listing on an exchange — determine who gets shares at what price. Confidential IPO filings (used by Anthropic and OpenAI) are a JOBS Act provision that lets companies refine S-1 drafts with the SEC privately before the offering becomes public.
Key Points
- Most retail investors do NOT get shares at the IPO price — that pricing is allocated to institutional clients of the underwriters. Retail typically buys at the market price after the first trade.
- Roughly 80% of recent IPOs filed confidentially first. It's a procedural choice, not a sign of hidden problems.
- Day-one pricing depends heavily on institutional demand vs. the price range set during the roadshow.
Related Terms
Common Questions
The first time a private company sells shares to public investors. Marks the transition from private (owned by founders, employees, and VCs) to public (owned by anyone who can buy the stock). An IPO is how giant private companies like SpaceX, Anthropic, and OpenAI become buyable by regular investors. The mechanics — picking underwriters, filing an S-1 with the SEC, pricing the offering, and listing on an exchange — determine who gets shares at what price.
An IPO is how giant private companies like SpaceX, Anthropic, and OpenAI become buyable by regular investors. The mechanics — picking underwriters, filing an S-1 with the SEC, pricing the offering, and listing on an exchange — determine who gets shares at what price. Confidential IPO filings (used by Anthropic and OpenAI) are a JOBS Act provision that lets companies refine S-1 drafts with the SEC privately before the offering becomes public.
Most retail investors do NOT get shares at the IPO price — that pricing is allocated to institutional clients of the underwriters. Retail typically buys at the market price after the first trade.
Roughly 80% of recent IPOs filed confidentially first. It's a procedural choice, not a sign of hidden problems.
Day-one pricing depends heavily on institutional demand vs. the price range set during the roadshow.