IPO Allocation

IPO allocation is one of the most opaque and debated aspects of the public offering process. After the order book is built and the offering is priced, underwriters must decide who receives shares and in what quantities. This decision has significant financial implications because IPOs that trade above their offering price on the first day effectively transfer value from the issuing company to the investors who received allocations.

In the United States, the allocation process for IPOs is largely discretionary and not governed by specific statutory rules beyond the general anti-fraud provisions of securities law. Underwriters have wide latitude to favor certain investors over others. In practice, large institutional investors — particularly those with long-standing relationships with the underwriting bank, those who are long-term buy-and-hold investors rather than quick flippers, and those who submitted orders at or above the final offering price — tend to receive preferential treatment.

The allocation process has been criticized on multiple grounds. Academic research, SEC investigations, and high-profile lawsuits have documented practices such as spinning — in which banks allocated hot IPO shares to executives at companies they hoped to win investment banking business from — and laddering — in which investors promised to buy additional shares in the aftermarket in exchange for favorable IPO allocations. Both practices were the subject of significant regulatory scrutiny following the dot-com bubble.

Retail investors have historically received a much smaller share of IPO allocations than institutional investors. However, this dynamic has shifted somewhat with the rise of online brokerages that specifically market IPO access to retail clients, and with new distribution models such as direct listings and SPAC mergers that bypass traditional allocation processes. Some fintech platforms have partnered with underwriters to give retail investors greater access to IPO allocations.

FINRA Rule 5130 prohibits member firms from selling new issue shares to accounts in which certain financial professionals (such as other brokers or fund managers) have a beneficial interest, to prevent self-dealing. This rule is informally known as the free-riding and withholding rule and applies to allocations of equity IPOs.