ZMoney+

What is an IPO? A Beginner's Guide to Initial Public Offerings

Basics 10 min read · Beginner · Last reviewed 18 Aug 2026

An IPO, or Initial Public Offering, is the first time a private company offers its shares to the public. This allows ordinary investors like you and me to buy a small part of that company. When a company goes public through an IPO, its shares become available for trading on stock exchanges for the first time.

What is an IPO?

An Initial Public Offering (IPO) is simply the process where a private company sells its shares to the public for the very first time. Before an IPO, a company is owned by a small group of founders, employees, and private investors. The main purpose of an IPO is to raise money for the company and allow existing owners to sell some of their shares.

When a company launches an IPO, it means you, as an ordinary investor, get a chance to buy a part of that company. You become a small owner, also called a shareholder. This first sale of shares happens in what is known as the primary market. Once these shares are bought in the IPO, they then move to the secondary market. The secondary market is where shares that are already listed on the stock exchange are bought and sold between investors every day, like on the National Stock Exchange (NSE) or Bombay Stock Exchange (BSE).

Why Do Companies Launch an IPO?

Companies decide to go public through an IPO for several important reasons. The biggest reason is to raise a large amount of money. Imagine a company that wants to grow its business, open new offices, or develop new products. An IPO helps them get the necessary funds from many investors.

Here are the main reasons why companies launch an IPO:

How Does an IPO Work in India?

For an Indian investor, applying for an IPO involves a few steps. It is a structured process designed to be fair.

  1. Open a Demat and Trading Account: First, you need a Demat account to hold your shares electronically and a trading account to place buy and sell orders. These are essential for any stock market investment.
  2. Choose an IPO: Look for upcoming IPOs that interest you. You can find information about them from your broker, financial news, or the SEBI website.
  3. Apply for Shares: You can apply for IPO shares through your registered stockbroker or bank. The most common way to apply is using ASBA (Application Supported by Blocked Amount). With ASBA, the money for your IPO application is blocked in your bank account but not debited immediately. It only gets debited if you are allotted shares.
  4. Understand Lot Size: When applying for an IPO, you cannot buy just any number of shares. Companies set a 'lot size', which is the minimum number of shares you must apply for. For example, if the lot size is 50 shares, you must apply for 50 shares or multiples of 50 (like 100, 150, etc.).
  5. IPO Allotment: After the application period closes, the company decides how to distribute the shares among all applicants. This process is called allotment. If the IPO receives more applications than available shares (oversubscribed), a lottery system is used to decide who gets shares. Not everyone who applies may receive shares.
  6. Listing on Stock Exchanges: If you are successfully allotted shares, they will be credited to your Demat account before the listing date. The company's shares then get listed on major stock exchanges like the National Stock Exchange (NSE) and Bombay Stock Exchange (BSE). Once listed, you can buy or sell these shares in the secondary market.

Understanding IPO Allotment

IPO allotment is the process of distributing shares to investors who applied. If an IPO receives applications for more shares than it offers, it is called an oversubscribed IPO. In such cases, it is not possible to give shares to every applicant. To ensure fairness, a lottery system is used. This means that even if you apply, there is no guarantee you will receive shares, especially if the IPO is highly popular. If you do not get shares, the blocked amount in your bank account is released.

Understanding IPO Risks and Realities

It is very important for every investor to understand that investing in IPOs carries market risk. Like all investments in the stock market, returns are never certain. The share price of a company can go up or down after it lists on the stock exchange.

There is a common myth that all IPOs guarantee high returns or are a quick way to get rich. This is not true. While some IPOs perform very well and their share prices rise significantly, others may not do so well. The share price can even fall below the issue price (the price at which shares were offered in the IPO). If this happens, investors may lose money. Always remember to do your research and understand the company before investing.

Who Regulates IPOs in India?

In India, the Securities and Exchange Board of India (SEBI) is the main regulatory body that oversees IPOs. SEBI plays a crucial role in ensuring that the IPO process is fair, transparent, and protects the interests of investors. Before a company can launch an IPO, it must get approval from SEBI.

SEBI sets rules and guidelines that companies must follow when offering shares to the public. This includes detailed disclosures about the company's financials, business operations, and risks involved. This regulation helps maintain trust and confidence in the Indian stock market.

An Everyday Example of an IPO

Let's imagine a popular local restaurant called 'Spice Kitchen'. It has one successful branch and is very well-loved in your neighbourhood. Now, 'Spice Kitchen' wants to open five new branches across the city and maybe even start a food delivery service. To do this, they need a lot of money, more than their owners currently have.

Instead of taking a big loan, 'Spice Kitchen' decides to offer small 'ownership parts' (which are called shares) to the public for the very first time. This first offer to the public is exactly like their IPO. People like you can buy these shares, becoming small owners of 'Spice Kitchen'. You hope that as the restaurant grows and becomes more successful with its new branches, the value of your 'ownership part' (share) will also increase. This is a simple way to understand how a company raises money through an IPO and how you can become a part-owner.

Frequently Asked Questions (FAQ)

This section will provide concise answers to common investor queries about IPOs.

Sources

Key takeaways

  • An IPO is when a private company first offers its shares to the public to raise money for growth or debt repayment.
  • To apply for an IPO in India, you need a Demat and trading account and can use ASBA through your broker or bank.
  • IPO allotment depends on demand; if oversubscribed, shares are distributed via a lottery system, and not all applicants may receive them.
  • Investing in IPOs carries market risk, and returns are never certain; share prices can fall below the issue price after listing.
  • SEBI regulates IPOs in India, ensuring fairness and transparency for investors.

Frequently asked questions

How can I apply for an IPO in India?

To apply for an IPO in India, you first need to have both a Demat account and a trading account. A Demat account is where your shares are held electronically, and a trading account allows you to place buy and sell orders. Once these are set up, you can apply for IPO shares through a registered stockbroker or your bank. The most common method is using ASBA (Application Supported by Blocked Amount). With ASBA, the application money is blocked in your bank account and only debited if you are allotted shares. This makes the process secure and convenient for investors.

What is IPO allotment and how does it work?

IPO allotment is the process by which shares are distributed to investors who applied for them. After the IPO application period closes, if the number of applications exceeds the number of shares offered (meaning the IPO is oversubscribed), a fair lottery system is used. This means that not all applicants may receive shares. For example, if an IPO is subscribed 10 times, only a fraction of applicants might get shares. If you are allotted shares, they are credited to your Demat account; if not, the blocked amount in your bank account is released.

Can an investor lose money by investing in an IPO?

Yes, an investor can definitely lose money by investing in an IPO. Investing in IPOs, like any stock market investment, carries market risk. Returns are never certain, and there is no promise of fixed returns. The share price of a company can go up or down after it lists on the stock exchange. If the share price falls below the issue price (the price at which you bought it in the IPO), you could lose money. It is crucial to understand that IPOs are not a guaranteed path to quick riches and require careful research.

What is a lot size in an IPO application?

A lot size in an IPO application refers to the fixed minimum number of shares an investor must apply for. Companies decide on a lot size to manage the number of applications and ensure efficient share distribution. For instance, if a company sets a lot size of 30 shares, you must apply for at least 30 shares, or multiples of 30 (like 60, 90, and so on). You cannot apply for a single share or any number outside these multiples. This simplifies the application process for both the company and the investor.

Who regulates IPOs in the Indian stock market?

In the Indian stock market, IPOs are regulated by the Securities and Exchange Board of India (SEBI). SEBI is the primary regulatory body responsible for protecting the interests of investors and promoting the development of the securities market. It sets strict guidelines and rules that companies must follow before launching an IPO, including detailed disclosure requirements. SEBI's approval is mandatory for any company planning an IPO, ensuring fairness, transparency, and investor protection in the Indian market.

What is the main reason companies launch an IPO?

Companies launch an IPO primarily to raise significant funds for various corporate needs. The most common reasons include financing business expansion plans, such as opening new branches or developing new products. They might also use the funds to pay off existing company debts, which strengthens their financial position. Additionally, going public can enhance a company's public image and credibility, making it easier to attract future investments or partnerships. An IPO allows a company to tap into a wider pool of capital from public investors.

What is the difference between the primary market and secondary market?

The primary market is where new securities, like shares in an IPO, are issued for the first time directly by the company to investors. It is where companies raise fresh capital. For example, when you apply for an IPO, you are participating in the primary market. The secondary market, on the other hand, is where existing securities are traded between investors after they have been initially issued. Stock exchanges like NSE and BSE are part of the secondary market, where you buy or sell shares that are already listed. The company does not directly receive funds from secondary market trades.

Do I need a Demat account to apply for an IPO?

Yes, having a Demat account is essential to apply for an IPO in India. A Demat account, short for dematerialised account, holds your shares and other securities in electronic form. When you are allotted shares in an IPO, they are credited directly to your Demat account. Without a Demat account, you cannot receive or hold the shares you apply for. It acts as a digital locker for your investments, making the process of buying, holding, and selling shares seamless and secure.

💬 Join the discussion in the app →
⚠️ This information is for educational purposes only and should not be considered as investment advice. Investing in the stock market, including IPOs, carries market risk. Returns are never certain, and investors may lose money. Always consult a SEBI-registered financial adviser for personalised investment decisions.

← All guides