IPO Explained

What Is An IPO?

An initial public offering (IPO) is the process by which a private company first offers shares to the public and becomes listed on a stock exchange.

In practical terms, it is a shift from private ownership (founders, early employees, and private investors) to public ownership, where the company’s shares can be bought and sold by market participants once trading begins.

IPOs: Two Markets, Two Moments

To understand how IPOs work (and where most individuals actually participate), it helps to separate the journey into two distinct phases:

• Primary market (the IPO offering itself):
  This is where new shares are sold for the first time, typically at an “offer price”. The company raises capital, and allocations are distributed through the underwriting banks and participating brokers.
• Secondary market (when the shares start trading):
  Once the shares are listed on the exchange and trading opens, investors can buy and sell them on the open market. This is where price discovery happens in real time, and where access is usually more straightforward.

A Reality Check on Retail Access

It is common to assume that “buying an IPO” means getting shares at the offer price. In reality, retail access to IPO allocations can be limited and is often dependent on the distributing broker’s policies, jurisdiction, and demand levels.

Many individuals, therefore, gain exposure after listing by purchasing shares once the stock begins trading in the secondary market.

This distinction matters because the risks, costs, and trading conditions can differ materially between the offer stage and the first days of secondary trading.

For example, early trading can involve wider spreads, sharp price swings, and short-lived liquidity pockets as the market determines the company’s value.

Why Companies Go Public

Companies usually pursue an IPO to:

• raise capital to fund growth, research, hiring, or expansion;
• provide liquidity for early investors and employees;
• increase visibility and credibility with customers, partners, and lenders;
• Create a public share price that can support future fundraising or share-based compensation.

If you’re building your foundation, explore our guides on share and order basics—then consider opening a free demo account to practise placing trades without risking real capital.

IPO vs Direct Listing vs SPAC (What’s The Difference?)

People often say “IPO” as a catch-all for “a company going public”, but there are a few different routes.

The differences matter because they can affect pricing, timing, and how shares reach the market.

IPO: The Classic Route

With a traditional IPO, the company works with investment banks (underwriters) to prepare the listing, market the story to investors, and set an offer price.

New shares are typically issued to raise capital, and allocations are made before trading starts.

What this means for you: if you’re hoping to buy at the offer price, access may depend on whether your broker participates and what demand looks like. Otherwise, you’ll be looking at the open market once trading begins.

Direct Listing: Listing First, Fundraising Optional

In a direct listing, the company lists its shares on an exchange without the same “new shares sold at an offer price” structure.

Existing shareholders can sell shares to the public, and the market sets the price as trading opens.

What this means for you: you’re generally participating through the secondary market from the start, so it’s less about “getting an allocation” and more about trading conditions on day one.

SPAC: a Different Path to Becoming Public

A SPAC (special purpose acquisition company) is essentially a listed shell company that raises money first, then merges with a private business later.

The private company becomes public through that merger rather than through a traditional IPO process.

What this means for you: the timeline and disclosure path can look different, and the pricing story may be shaped by the SPAC structure (including redemption features and the mechanics of the merger).

Quick Comparison

• IPO: Underwritten offering; often issues new shares; allocations before trading starts.
• Direct listing: Shares are listed and traded without the same underwritten offering structure; price is discovered in open trading.
• SPAC: A merger route; the public listing happens via a combination with a listed SPAC, not a classic IPO.

The IPO Process (Step By Step Timeline)

Although every deal has its own unique quirks, most IPOs follow a similar broad playbook. Think of it this way: prepare the company, market the story, set the price, and then let the market take over.

1) Preparation and Filings

Before anything gets listed, the company has to get its house in order. That usually means audited financials, a clearer corporate structure, and a big chunk of documentation for regulators and investors.

The key document you’ll hear about is the prospectus (in the US, this is tied to the S-1 filing). It’s basically the company explaining, in writing:

• What it does and how it makes money,
• What are the main risks are
• What it plans to do with the money (if raising capital),
• How the share structure works.

2) Underwriters and the “Deal Team”

In a traditional IPO, investment banks act as underwriters. They help shape the offering, coordinate demand from large investors, and support the initial launch.

You don’t need to memorise the jargon here—just remember that underwriters sit between the company and the buyers in the primary offering.

3) Marketing the IPO (roadshow and bookbuilding)

This is the stage where the company and underwriters pitch the investment case to potential buyers, usually institutional investors.

At the same time, the underwriters gauge demand and build an order book (“bookbuilding”).

This is one reason IPO pricing can be tricky: you’re not looking at years of public trading data.

A lot of the early “price discovery” happens behind the scenes before the first trade even hits the exchange.

4) Pricing and Allocation

The IPO gets an offer price, and shares are allocated to participating investors in the primary market.

This is where many retail investors hit the practical hurdle: allocations can be limited, and access is not guaranteed.

5) Listing Day: Trading Starts

Once the shares begin trading on the exchange, you’re in the secondary market. From here, the price moves based on supply and demand like any other listed share—but the first few sessions can be a bit of a wild ride.

It’s common to see:

• sharp intraday swings,
• wide bid–ask spreads (especially early on),
• and intermittent liquidity as the market figures out “fair value”.

6) The Early Weeks After Listing

After listing, you may hear about things like stabilisation activity and overall support for orderly trading (details vary by market and deal structure).

The bigger takeaway is simple: the first days and weeks are often not “business as usual” trading conditions.

If you’re new to fast-moving markets, it’s worth practising how limit and market orders behave in a demo environment before trying to trade a new listing live.

What to Look for in the Prospectus (a Practical Checklist)

If you only read one thing about an IPO, make it the prospectus (or the equivalent document in your market).

It’s not exactly bedtime reading, but it’s where the company lays out the story, the numbers, and the risks in a structured way.

Here’s what’s worth focusing on—without getting lost in the weeds.

The Business Model (In Plain English)

Start simple: how does the company make money, and what actually drives growth?

If you can’t explain it back in a couple of sentences, that’s usually a sign you need more clarity before even thinking about trading it.

Use Of Proceeds

If the IPO is raising new capital, the prospectus will typically describe what the money is for—expansion, debt repayment, R&D, acquisitions, working capital, and so on.

A quick sanity check: proceeds that go into growth are very different from proceeds that mostly go into plugging holes.

Financial Highlights and What’s Changing

You’re not trying to build a full analyst model here. You just want to understand:

• Revenue trend and what’s driving it,
• Profitability (or the path towards it),
• Cash flow and whether the business burns cash,
• Major customer concentration (if one or two clients matter a lot).

Also watch for “one-off” adjustments that can make numbers look cleaner than the underlying reality.

Risk Factors (Look for Themes, Not Perfection)

Every prospectus has a long risk section. You don’t need to read it like a novel. Instead, scan for the big buckets:

• dependency on a small number of customers or suppliers,
• regulatory or legal exposure,
• intense competition / weak moat,
• high debt or funding needs,
• reliance on key individuals or a narrow product line.

The goal isn’t to find a “risk-free IPO” (those don’t exist). It’s to understand what could move the share price sharply if things go wrong.

Share Structure and Dilution Basics

This is the part many people skip—and later regret. Pay attention to:

• how many shares exist (and what’s being issued now),
• whether there are multiple share classes (some structures give insiders extra voting power),
• whether future share issuance is likely (which can dilute existing shareholders).

Insider Holdings and Selling Restrictions (Lock-Ups)

Insiders (founders, early investors, employees) often face lock-up periods, meaning they can’t sell immediately after listing.

When lock-ups expire, more shares may become available for sale, which can affect supply dynamics.

It doesn’t automatically mean the price will fall. It just means you should know the calendar and avoid being surprised.

Underwriters and Deal Context

The prospectus will name the underwriters and give context on the offering. You don’t need to treat this as a stamp of approval, but it helps you understand how the deal is being brought to market and who’s involved.

If you’re still building confidence with share research, start with the basics—then practise reading price action and placing orders in a demo account before trading live.

IPO Costs and Trading Frictions (The Stuff People Forget)

IPO coverage often focuses on “the story” and the headline price. What gets overlooked is how the early trading environment can change what you actually pay and how your order gets filled.

The Offer Price Isn’t the Price You’ll Necessarily Get

Unless you receive an IPO allocation (which many retail investors won’t), your first chance to participate is usually once the share starts trading.

From that point on, you’re dealing with live supply and demand—so the price can move quickly, sometimes within seconds.

Bid–Ask Spreads Can Be Wider Early On

In the first hours (and sometimes days), spreads can be noticeably wider than you’re used to in mature, heavily traded shares. That means the “cost” of getting in and out isn’t just fees—it can be the spread itself.

A simple takeaway: if the spread is wide, rushing a trade can be expensive even before the price moves against you.

Market Orders vs Limit Orders on Day One

This is where many people get caught out.

• Market orders prioritise execution, not price. In a fast-moving IPO, that can mean fills that are higher (for buys) or lower (for sells) than expected.
• Limit orders prioritise price control. You may not get filled, but you’re setting a maximum buy price (or minimum sell price).

You don’t need to “always” use one or the other—just recognise that day-one conditions can punish autopilot order placement.

Volatility Interruptions and Trading Halts Can Happen

New listings can see sharp moves and, depending on the venue, temporary pauses in trading.

The practical point isn’t the mechanics—it’s that you should be comfortable with the idea that you might not be able to enter or exit at the exact moment you want.

Fees: The Obvious Cost, But Not Always the Biggest One

Brokerage fees and financing costs (where relevant) matter, but in IPO trading the bigger impact often comes from:

• spreads,
• slippage (getting filled away from the price you expected),
• and volatility while the market finds a “settled” valuation.

IPO Performance Myths

IPO headlines can make it feel like there’s a standard script: the price “pops”, early buyers win, and everyone else tries to catch up.

Sometimes that happens. Just as often, it doesn’t. A few quick myth-busters can save you from entering a trade with the wrong expectations.

Myth 1: The IPO Price Is Automatically a Bargain

Reality: The IPO price is simply the price the deal clears at given demand and the story being sold.

It can be conservative, fair, or optimistic. There’s no rule that says it has to be “cheap”, and in hot deals the excitement can be baked in from the start.

Myth 2: A Day-One “Pop” Is Guaranteed

Reality: Some IPOs jump; others open flat, trade down, or swing both ways wildly. Early trading is often noisy because the market is still figuring out valuation.

If your whole plan depends on a predictable day-one move, it’s worth reassessing the plan.

Myth 3: Strong Branding Means a Strong Share Price

Reality: A well-known name can attract attention, but the market tends to care about execution: revenue quality, margins, cash flow, and realistic growth. Popularity helps visibility; it doesn’t replace fundamentals.

Myth 4: If It Drops After Listing, It Must Be “On Sale”

Reality: A lower price can mean “better value”, but it can also mean the market is revising expectations.

The key question is why it’s falling. Is it normal volatility and price discovery, or is new information changing the outlook?

Myth 5: Lock-Up Expiry Always Crashes the Price

Reality: Lock-up expiries can increase the number of shares available to sell, which can add pressure. But outcomes vary.

Sometimes it’s already priced in, sometimes insiders don’t rush to sell, and sometimes the market absorbs it just fine. The smart move is simply to know when it’s coming.

If you’re interested in new listings, keep learning the basics of valuation and order types—and practise in a demo account so you’re not learning under pressure.

Should You Buy on Day One or Wait?

There’s no “right” answer here. It’s more about matching the approach to your risk tolerance and what you’re trying to achieve.

If You’re Thinking of Buying on Day One

It can make sense if you’re comfortable with:

• fast price moves and imperfect price discovery,
• wider spreads and potential slippage,
• using limit orders to stay in control of the entry price.

If You’re Thinking of Waiting

Waiting can be sensible if you prefer:

• a bit more stable liquidity and tighter spreads,
• more time for the market to form a clearer view of valuation,
• awareness of key dates, like earnings or lock-up expiries.

A Simple Rule of Thumb

If you wouldn’t be happy seeing the position swing sharply in the first hour, you’ll probably prefer a more patient approach.

Key Risks to Understand Before Trading IPOs

IPO trading can be exciting, but it often comes with a different risk profile than a well-established listed share. Here are the main ones to keep in mind.

Valuation Risk

Early on, the market is still figuring out what the company is worth. That means prices can overshoot in either direction before things settle.

Volatility and Liquidity Risk

In the first sessions, you may see sharp moves, wider spreads, and patchy liquidity. In plain terms, it can be harder to get the price you want, especially if you’re using market orders.

Information Risk

With newly listed companies, there’s less public trading history and often less analyst coverage. You’re working with fewer reference points, so surprises (good or bad) can hit harder.

Event Risk

A lot can happen around key milestones—first earnings as a public company, guidance updates, sector news, and lock-up expiries. These aren’t “red flags” by default, but they can be catalysts for fast moves.

Behavioural Risk

This one is underestimated. IPOs attract headlines and hype, which can pull people into trades they didn’t properly plan. Having a defined entry, exit, and position size matters more than usual.

Before you trade a new listing with real funds, practise position sizing and order placement in a demo account so you can focus on the process, not panic.

Wrap-Up: The Key Takeaways

• An IPO is the “going public” moment—but most people engage when trading opens on the exchange, not at the offer price.
• Early trading can be messy: wider spreads, fast moves, and imperfect price discovery are common.
• The prospectus is your anchor. If you’re going to spend time anywhere, spend it understanding the business model, risks, share structure, and any lock-up dynamics.
• There’s no single best approach (buy day one vs wait). What matters is having a plan you can stick to when prices move quickly.

A Final Word Before You Act

If you’re new to IPO trading, it’s usually worth building familiarity with order types and position sizing first—because execution mistakes can be costly in volatile markets.

FAQ

• Can retail investors buy shares at the IPO price?

  Sometimes, but it depends on the distributing broker, eligibility rules, and demand. Many retail traders buy once the shares start trading publicly.

   
• What’s a lock-up period?

  A time window after listing which certain insiders may be restricted from selling shares. When it ends, supply can increase.

   
• Are market orders risky on IPO day?

  They can be. In fast markets with wider spreads, market orders may fill at unexpected prices. Limit orders give you more control.

   
• Where should I start my IPO research?

  Start with the prospectus (or equivalent listing document), then check key dates (first earnings, lock-up expiry) and the early trading conditions.

   

** Disclaimer – While due research has been undertaken to compile the above content, it remains an informational and educational piece only. None of the content provided constitutes any form of investment advice.

Keep learning with our beginner trading resources, or open a free demo account to practise placing trades without risking real capital.