What an IPO is

What it is

An initial public offering is the process by which a company registers securities with the SEC, typically on Form S-1 or F-1, and sells shares to the public, usually with underwriters, then lists them on an exchange if listing standards are met. “IPO” names that offering. It does not mean the company is new, that insiders are selling all of their stock, or that the listing venue has endorsed the business. Direct listings, follow-on offerings, and listings on a foreign exchange are related but different objects.

Why it matters

IPO stories are often told as debuts or as verdicts. The checkable objects are the registered securities, the price and size of the deal as disclosed, and the exchange’s listing rules. Gross proceeds are multiplication; net proceeds subtract fees. Neither figure is a forecast of the first-day print or of long-run performance. Investor.gov and FINRA both treat IPOs as offerings with specific risks, including limited operating history and the fact that you may not receive an allocation at the offering price.

Example and a simple calculation

Gross proceeds are shares sold times the offering price. If a company sells 20 million primary shares at $25, gross proceeds are 20 million × $25 = $500 million. If the underwriting discount is 7%, that fee is 0.07 × $500 million = $35 million, and a simplified net to the issuer is $465 million before other expenses. Those numbers are a teaching identity, not a live deal. A Hong Kong listing, a U.S. S-1, and a dual listing are different registration and venue paths. If TickerGrove later publishes a dated IPO story — including coverage at /stories/shein-hong-kong-ipo-2026 when that slug exists — that article is the example. This guide stays on the process.

Common mistakes

• Treating the offering price as a value opinion from the exchange or from TickerGrove.
• Confusing primary shares (new stock, proceeds to the company) with secondary shares (sold by existing holders).
• Assuming a first-day pop or drop is the “real” IPO price, or that everyone can buy at the prospectus price.
• Reading a foreign listing through U.S. S-1 rules, or the reverse, without opening that venue’s documents.

What this cannot tell you

An IPO cannot tell you whether the shares will rise, whether the company will remain listed, or whether the offering price was “fair.” It cannot guarantee allocation. It is not individualized advice and not a recommendation of any issuer, including any company named in a related TickerGrove story. This page does not print a live offering price or a first-trade quote.

How to verify the object

For a U.S. registered IPO, open the Form S-1 or F-1 on EDGAR, then the prospectus that is declared effective. Confirm the issuer, the share count, primary versus secondary, the underwriting discount, and risk factors. For listing standards, use the exchange’s current guide — Nasdaq and NYSE each publish theirs — not a recap. FINRA and Investor.gov IPO pages are the investor-education layer. A Hong Kong or other non-U.S. listing requires that market’s prospectus and listing rules; do not import a U.S. form type onto it.

Sources

• Investor.gov, Initial public offering (IPO)
• SEC, Going public
• FINRA, IPOs: what you need to know
• Nasdaq, Initial Listing Guide