IPO Explained: What Is an Initial Public Offering and How It Works
Written by
Rudri Bhatt Patel, CFHC™
Edited by
Joe Evans, CFHC™
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An IPO (initial public offering) is when a private company sells its shares to the public for the first time.
In simple terms, it’s the moment a company “goes public,” allowing everyday investors to buy stock and become partial owners. Companies use IPOs to raise money for growth, expand everyday operations, pay off debt and increase visibility and credibility.
In this guide, you’ll learn:
- How IPOs work step by step
- Why companies go public
- How investors can participate
- The risks and rewards of IPO investing
IPO: At a Glance
Feature Details Definition First time a company sells shares to the public Purpose Raise capital and become publicly traded Where shares trade Stock exchanges like NYSE or Nasdaq Who can invest Institutional + retail investors Risk level Moderate to high Timeline Several months to over a year
How Does an IPO Work?
The IPO process is complex, but it can be broken down into a few key steps.
1. The Company Decides to Go Public
A private company evaluates whether it’s ready to raise capital through public markets. Going public requires strong financials, governance and reporting systems.
2. Hire Investment Banks (Underwriters)
The company works with investment banks to:
- Set a valuation
- Determine how many shares to sell
- Market the offering
Underwriters help structure and sell shares to investors.
3. File With the SEC
Before selling shares, companies must file a registration statement (Form S-1) with the SEC. This document includes:
- Financial statements
- Business model
- Risks
SEC approval is required before shares can be sold publicly.
4. Roadshow and Pricing
The company promotes the IPO to investors through a “roadshow.” During this stage:
- Demand is measured
- Final pricing is determined
Investor demand plays a major role in setting the IPO price.
5. Shares Start Trading
Once approved:
- Shares are listed on an exchange
- Investors can begin buying and selling
This creates a public market for the company’s stock.
Why Do Companies Go Public?
Primary Reasons
| Reason | Why It Matters |
|---|---|
| Raise capital | Fund expansion and growth |
| Liquidity | Allow early investors to sell shares |
| Visibility | Increase brand recognition |
| Valuation | Establish a market price for the company |
An IPO gives companies access to large amounts of capital while allowing public investors to participate in future growth.
How to Invest in an IPO
Buying IPO shares isn’t always as easy as buying regular stocks.
Step-by-Step
- Open a brokerage account that offers IPO access
- Meet eligibility requirements (varies by broker)
- Review the prospectus carefully
- Submit an “indication of interest”
- Receive shares (not guaranteed)
Retail investors may have limited access, as IPO shares are often prioritized for institutional investors.
Benefits vs Tradeoffs
| Category | Benefits | Tradeoffs |
|---|---|---|
| Growth potential | Early access to companies | High volatility |
| Accessibility | Available through brokers | Limited share allocation |
| Visibility | Strong market interest | Prices can swing quickly |
| Returns | Potential big gains | Risk of losses after launch |
IPO vs Regular Stock Investing
| Feature | IPO | Regular Stock |
|---|---|---|
| Timing | At company debut | After public trading begins |
| Pricing | Set before trading | Market-driven |
| Risk | Higher | Lower (typically) |
| Access | Limited | Open to all investors |
Real-World Example
When a company like a tech startup goes public:
- It offers shares at a set IPO price
- Investors buy those shares
- The stock begins trading on an exchange
From there, the price moves based on demand, sometimes rising quickly, other times falling below the IPO price.
Key Risks of IPO Investing
1. Volatility
Prices can surge or drop sharply on day one.
2. Limited Information
New public companies may not have long track records.
3. Allocation Issues
You may not get shares even if you request them.
4. Institutional Advantage
Large investors often get priority access.
Quick Decision Guide
Want early access to new companies? Consider IPO investing (with caution)
Prefer lower risk? Wait until the stock stabilizes after IPO
Don’t have IPO access? Buy shares after they begin trading
Looking for long-term growth? Focus on established companies or index funds
Final Take to GO
An IPO (initial public offering) is how companies transition from private to public ownership. It gives businesses access to capital and gives investors a chance to get in early. But, at the end of the day, IPOs come with higher risk, limited access and serious price volatility.
Your best move: If you’re a beginner, consider watching an IPO after it launches before investing. That way, you can avoid early volatility and make more informed decisions.
IPO (Initial Public Offering) FAQ
- What does IPO stand for?
- IPO stands for initial public offering, which is when a company sells shares to the public for the first time.
- How do IPOs make money for companies?
- Companies raise money by selling shares to investors, which can then be used for growth, expansion or paying off debt.
- Can beginners invest in IPOs?
- Yes, but access may be limited. Many IPO shares are allocated to institutional investors before retail investors.
- Is investing in an IPO risky?
- Yes. IPOs are often volatile and may lack long-term performance history, making them riskier than established stocks.
- What happens after an IPO?
- After the IPO, the company’s shares begin trading on a stock exchange, and prices fluctuate based on supply and demand.
- Do all IPOs perform well?
- No. Some IPOs rise quickly, while others fall below their initial offering price depending on market demand.
Karen Doyle contributed to the reporting for this article.
Our in-house research team and on-site financial experts work together to create content that’s accurate, impartial, and up to date. We fact-check every single statistic, quote and fact using trusted primary resources to make sure the information we provide is correct. You can learn more about GOBankingRates’ processes and standards in our editorial policy.
- U.S. Securities and Exchange Commission "Going Public"
- U.S. Securities and Exchange Commission "Initial Public Offerings (IPOs)"
- U.S. Securities and Exchange Commission "Ready to Go Public?"
