What it means
A stock exchange brings together buyers and sellers of shares under a single set of rules. Companies that meet the listing requirements can sell shares to the public and then have those shares trade on the exchange.
Investors can later buy and sell with each other at prices set by supply and demand, and every trade is recorded and reported. The National Stock Exchange of India was set up in the early 1990s and began trading in the mid-1990s, using a fully electronic system that let participants across the country trade on the same screen.
It also runs a widely followed index of 50 large companies called the Nifty 50. Other countries have their own principal exchanges, and the phrase is also used in a general sense for a country's main exchange.
Listing brings benefits and obligations. A listed company gets access to a large pool of investors, a visible share price and a currency for acquisitions.
In return it must publish regular financial reports, follow governance rules and tell the market promptly about major events. Exchanges also provide infrastructure around trading: clearing, which confirms and guarantees trades, and settlement, which transfers shares and cash.
They often operate markets for other products as well, such as bonds, exchange-traded funds and derivatives. For a non-specialist, the exchange's index is the usual headline.
When news says the market rose or fell, it usually means the main index of that exchange, which reflects a basket of its largest companies, so one day's headline may not describe smaller listed firms. Always check which exchange and which index are being discussed.
Exchanges also compete with each other and with private trading venues. They earn income from listing fees, trading fees and the sale of market data, so they have a commercial interest in attracting companies and investors.
Regulators supervise them to make sure that competition does not weaken the protection of investors.
In practice
Real-world examples.
Example
A fast-growing manufacturing company decides to list its shares on the national stock exchange to raise $150,000,000 for new plants. The listing also gives early employees a way to sell their shares. It hires bankers and lawyers to prepare a prospectus, the document that describes the company and the offer.
Example
A foreign fund manager wants exposure to a growing economy. She opens a custody account and buys shares in the largest companies through the exchange, checking local rules on foreign investors. She also considers the effect of exchange rate changes on her returns.
Example
A finance journalist reports that the exchange's main index fell 1.5% after a central bank announcement. Her readers use the figure as a quick measure of investor mood across the country's largest companies. She reminds them that one day's move says little about long-term performance.
Case study
Seen in the real world.
Orchard Textiles is an illustrative, fictional family business that wanted capital to build a new factory, having outgrown its two existing plants. Bank loans were expensive, and the family worried about the interest burden of borrowing $40,000,000.
The family decided to float 25% of the company on the national stock exchange. The listing raised the money and the share price gave the company a clear market value, but the managers also had to publish quarterly results and follow corporate governance rules. The finance team doubled in size to cope with the new reporting workload.
In this illustrative story, the company used the funds to expand and its sales rose by half over four years. The family later admitted that the discipline of public reporting had improved the business as much as the money did. Analysts who followed the shares also asked questions that the family had never considered.
Watch out
Common mistakes.
- Assuming every country has an exchange called the National Stock Exchange, when the name belongs to specific exchanges and the phrase is also used generally.
- Confusing the exchange with an index, when the index is just a measure of selected shares on the exchange and cannot be bought directly.
- Thinking listing is only about raising money, when it also brings reporting duties, public scrutiny and ongoing compliance costs.
Questions
People also ask.
What does a stock exchange do?
It provides a regulated marketplace where shares can be issued, bought and sold. It also publishes prices and enforces rules on fair trading.
What is the Nifty 50?
It is an index of 50 large companies listed on the National Stock Exchange of India. It is widely used as a benchmark for Indian shares, and funds exist that aim to track it.
Can foreign investors trade?
In many markets yes, but they must follow local registration and reporting rules. Some markets limit the share of a company that foreigners can own.
From the founder's library
Take it further with the book.
Build your financial confidence beyond this definition. Shihan's full-length guide, Accounting Fundamentals, takes the same plain-English approach and turns it into a complete, practical playbook for non-finance managers, business owners and students - with chapter-end quiz answers and presentation slides included.
25% off with code MMHQ25, applied at checkout. Priced in USD - checkout may show the equivalent in your local currency.
View the book and save 25%Related