A listed company is a company whose shares have been admitted to trading on a stock exchange, so that members of the public can buy and sell them through a broker. In the United Kingdom the same thing is often called a quoted company, because a price is "quoted" for its shares every trading day; UK company law uses "quoted company" as a defined term for companies listed in the UK, the European Economic Area or on the New York Stock Exchange or Nasdaq. In US usage the common phrase is publicly traded company.
Listing is different from simply being a public company. In the UK a public limited company (PLC) may offer shares to the public but need not be listed, and some listed companies trade on lightly regulated growth markets rather than a main market. Listed companies sit at the centre of the equity market: they are what a stock market index measures, what most exchange-traded funds hold and what most ordinary investors mean by "the market".
Listed company in plain terms
A private company is like a house owned by one family: if someone wants to buy a room, they have to knock on the door and negotiate. A listed company is more like a block of flats where the flats are for sale in an open market every day, with a board in the lobby showing the latest price.
That open market makes it easy to buy in or sell out, but it comes with house rules. The building must publish its accounts, tell everyone about important news at the same time and let owners vote on big decisions, so that no buyer is cheated by a seller who knows more.
How a company becomes listed
Most companies list through an initial public offering, selling new or existing shares to investors in the primary market, a process also known as a flotation. Alternatives include a direct listing, in which existing shares start trading without new money being raised, and a merger with an already listed company or special purpose acquisition company. An investment bank usually manages the process and underwrites any share sale.
To be admitted, a company must meet the exchange's and the regulator's listing requirements. These typically cover a minimum size, audited accounts for a set number of years, a minimum proportion of shares held by the public (the free float) and a prospectus approved by the regulator. India, for example, requires most listed companies to have at least 25 percent public shareholding. The UK overhauled its regime on 29 July 2024, replacing the old premium and standard segments with a single category for commercial companies' equity shares.
Obligations of being listed
Once listed, a company takes on continuing duties. In the United States, companies registered with the SEC file annual 10-K reports, quarterly 10-Q reports and 8-K reports of material events, and the Sarbanes–Oxley Act of 2002 requires executives to certify the accounts and internal controls. Similar duties apply in the UK under the Financial Conduct Authority's rules, in the EU under the Market Abuse Regulation and in Pakistan under the Securities and Exchange Commission of Pakistan's rules for companies on the Pakistan Stock Exchange.
- Disclosure. Price-sensitive information must be released promptly and to everyone at once, and dealing on it before release is insider trading.
- Reporting. Listed firms publish an audited annual report and interim results.
- Governance. Most markets apply a corporate governance code covering independent directors, audit committees and executive pay.
- Shareholder rights. Owners vote at annual meetings, often through proxy voting, and large holdings must be disclosed.
Why list, and why not
Listing gives a company access to a deep pool of capital, a market price for its shares that can be used as acquisition currency, and a way for founders and early backers such as venture capital funds to sell their stakes. A visible market capitalization and share price also make it easier to pay staff with share options.
The costs are compliance expense, public scrutiny, exposure to short-term share-price pressure and the risk of challenge from activist investors. These costs, together with plentiful private equity and private credit, help explain why the number of US-listed companies has fallen sharply from its mid-1990s peak, and why governments in the UK and EU have reformed their listing rules to attract more companies. Critics of public markets argue that quarterly reporting encourages short-termism; supporters reply that disclosure protects investors and gives ordinary savers access to company growth.
Delisting
A company stops being listed when it is taken private, for example through a leveraged buyout, when it is acquired by another company, when it chooses to move its listing elsewhere, or when the exchange removes it for breaching the rules or falling below minimum standards. Electronic Arts, for example, left Nasdaq in August 2026 after a $55 billion take-private. Once delisted, the shares can still exist but become much harder to trade, behaving more like an illiquid asset.