What Is a Stock Exchange?

Introduction

A stock exchange is a regulated marketplace where buyers and sellers trade securities like stocks and bonds. It brings transparency, fairness, and liquidity to investing. This lesson explains what exchanges do and why they exist.

What an Exchange Does

Exchanges centralize trading so that:

• Buyers and sellers can find each other easily
• Prices are determined by supply and demand
• Trades are recorded and reported transparently
• Rules and standards protect participants
• Companies gain a trusted venue to raise capital

Famous Exchanges

• NYSE (New York Stock Exchange) — oldest major US exchange
• NASDAQ — tech-heavy, fully electronic
• London Stock Exchange (LSE)
• Frankfurt Stock Exchange (Xetra)
• Tokyo Stock Exchange (TSE)
• Warsaw Stock Exchange (GPW) for Polish investors

Listing Requirements

To list on an exchange, a company must meet listing requirements — minimum standards for size, financial reporting, governance, and disclosure. These exist to protect investors from fraudulent or risky listings.

Company applies to list
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        v
Meets listing requirements (financials, reporting, governance)
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        v
Shares admitted for trading on the exchange

Why Companies List

A company lists its shares to raise capital — selling ownership to the public in exchange for money to grow the business. Listing also gives early investors a way to sell and brings prestige and visibility.

Orderly and Regulated

Exchanges are heavily regulated by authorities (e.g., SEC in the US, FCA in the UK, KNF in Poland). Regulation fights manipulation, insider trading, and fraud — the rules that keep ordinary investors safe.

Summary

• An exchange is a regulated marketplace for trading securities
• It provides transparency, fair pricing, and liquidity
• Companies meet listing requirements to join
• Listing lets companies raise capital by selling shares
• Regulators oversee exchanges to protect investors

Next Lesson

Now we separate the primary market from the secondary market.