Why is it so hard to get IPO shares?
Popular initial public offerings are often heavily oversubscribed, and individual investors who ask for shares at the offering price frequently get few or none. Understanding how shares are allocated and how the price is set helps close the gap between expectations and reality.
This guide explains the difference between the offering and the listing, how allocation works, how the IPO price relates to company value, and what happens to supply after the IPO as lock-ups expire, using a hypothetical example. It ends with what to check in the prospectus.
The offering versus the listing
In the offering, the company issues new shares, or existing shareholders sell some of theirs, to investors. The listing is when the shares begin trading on an exchange. In an IPO the two usually happen together. Money from new shares goes to the company; money from secondary shares goes to the selling shareholders.
The SEC's investor bulletin on investing in IPOs urges investors to read the registration statement and prospectus carefully, including the business, the risks, and how the company plans to use the proceeds. These documents, usually filed on Form S-1, are on EDGAR. A large secondary component can mean existing investors are using the IPO to cash out, which is worth noting.
How shares are allocated
In a typical U.S. IPO, underwriters build a book of orders, mostly from institutional investors, and decide who receives shares at the offering price. Individual investors usually get access only through brokers that receive an allocation, and demand often far exceeds what is available.
That means many individual investors end up buying on the first day of trading, after the price has already moved. The SEC's bulletin cautions that early trading prices can be volatile and may bear little relation to the offering price.
Float and lock-ups: a hypothetical example
Companies often sell only a small share of their stock in the IPO. Insiders and early investors typically agree to a lock-up, often around 180 days, during which they will not sell. The table follows a hypothetical company's tradable supply.
| Point in time | Tradable shares | Share of total (100 million) | Source of new supply |
|---|---|---|---|
| IPO day | 15 million | 15% | Shares sold in the offering |
| After employee lock-up (90 days) | 25 million | 25% | +10 million employee shares |
| After main lock-up (180 days) | 85 million | 85% | +60 million insider and investor shares |
When the main lock-up expires, potential supply more than triples. Prices sometimes weaken around expiry dates as early holders gain the ability to sell.
The IPO price and company value
Underwriters usually set an initial price range by comparing the company with listed peers on multiples such as price-to-earnings or price-to-sales, then set the final price based on investor demand. Which peers are chosen can move the price a great deal.
The prospectus describes the business, risks, capitalization, and dilution to new investors. If the company is priced against much faster-growing peers, the IPO price may be generous. Pricing above the initial range signals strong demand but can also leave less room for gains after listing.
The dilution section is worth reading closely. It shows how much new investors pay per share compared with the net tangible book value per share, which reveals how much of the price reflects expectations rather than assets already on the balance sheet.
Early volatility
First-day trading is often thin and driven by enthusiasm, so prices can swing widely. A large first-day jump is sometimes described as an IPO pop, but it benefits mainly those who received shares at the offering price.
Over the following months, price action often depends on the first earnings reports as a public company and on lock-up expirations. Note those dates in advance.
What to check in the prospectus
Before buying an IPO, at the offering or after listing, work through these items in the prospectus on EDGAR.
- Check the split between new shares and secondary shares, and the stated use of proceeds.
- Review the business description, risk factors, and recent financial statements.
- Read the capitalization and dilution sections to see what new investors pay relative to book value.
- Find the lock-up terms: who is covered, how many shares, and when they expire.
- Note any dual-class share structure that limits new shareholders' voting power.
Limits of IPO investing
Many IPOs trade below their offering price later on. A strong first day says little about long-term performance, and some companies fall short of the expectations set out at the time of the offering.
The supply table is hypothetical, and lock-up terms vary from deal to deal. When considering a real IPO, read the latest prospectus with its date, and focus on the business and the basis for the price rather than the listing-day buzz.