Glossary term
Allotment
Allotment is the allocation of securities, such as IPO shares, to investors after an offering order book or subscription process.
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What Is Allotment?
Allotment is the allocation of securities to investors in an offering. In an initial public offering, it refers to how shares are distributed among institutions, retail investors, insiders, employees, or other eligible buyers after demand has been collected.
The term can also appear in rights offerings, bond offerings, private placements, employee share plans, and capital raises. The core idea is the same: investors request or are eligible for securities, and the issuer or underwriters decide how many each investor receives.
Key Takeaways
- Allotment means assigning securities to investors in an offering.
- In IPOs, investors may receive fewer shares than requested if demand exceeds supply.
- Underwriters often influence allocation decisions in marketed offerings.
- Allocation practices are subject to rules designed to prevent abuses such as quid pro quo allocations and spinning.
- An allotment is different from buying shares later in the open market.
How IPO Allotment Works
In a typical IPO, underwriters collect indications of interest from potential buyers. If demand is stronger than the number of shares available, the book is oversubscribed and investors receive allocations smaller than their requested amounts. Some investors may receive no shares.
Allocations may reflect investor type, order size, long-term interest, relationship with the underwriter, regulatory limits, issuer preferences, and market-stabilization goals. Once shares are allotted and the offering prices, investors who received allocations generally buy at the offering price.
Why Allocation Rules Matter
IPO allotments can be valuable when shares are expected to trade above the offering price. That value creates incentive problems. Underwriters could be tempted to allocate shares to favored accounts, executives, or clients in exchange for other business.
FINRA rules address new issue allocations and distributions, including practices such as quid pro quo allocations and spinning. The point is to protect the integrity of the offering process and reduce conflicts around who receives scarce IPO shares.
Oversubscription and Partial Allotment
If an investor requests 1,000 shares and receives 200, the investor has a partial allotment. This is common in popular offerings. The unmet 800 shares are not automatically purchased unless the investor buys later in the secondary market, often at a different price.
In some offerings, allocation formulas are more mechanical. In others, especially institutional IPO books, allocations can involve judgment by underwriters and issuer representatives.
What Investors Should Understand
Receiving an IPO allotment does not guarantee profit. The share price can fall below the offering price once trading begins. A small allocation in a hot IPO may also make the headline return less meaningful because the investor received only a small position.
Investors should also understand lockups, flipping restrictions, settlement obligations, and whether the securities are freely tradable. The economics of being allotted shares depend on more than simply getting access.
The Bottom Line
Allotment is the process of distributing securities in an offering. It matters most when demand exceeds supply, because allocation decisions can affect investor access, conflicts of interest, and the economics of participating in new issues.