IPO Glossary

The period of trading that begins after a newly issued stock starts trading on a public exchange. Aftermarket performance is closely watched as an indicator of investor demand and accurate pricing. Strong aftermarket performance suggests the IPO was priced attractively, while a decline may indicate overvaluation.

The process of distributing IPO shares to investors who placed orders during the subscription period. Allotment decisions are made by the underwriters based on investor demand, order size, and the type of investor. Institutional investors typically receive larger allotments than retail participants.

The true owner of securities held in a brokerage account or through a nominee. Beneficial owners have the economic rights to the shares even though the securities may be registered under a different name, such as a broker-dealer or custodian bank.

An underwriting arrangement where the investment bank agrees to sell as many shares as possible but does not guarantee the entire offering will be sold. This contrasts with firm commitment underwriting and is typically used for smaller or riskier IPOs where demand is uncertain.

State-level securities regulations in the United States designed to protect investors from fraud. Companies going public must comply with both federal SEC requirements and applicable blue sky laws in each state where shares will be offered.

The process by which underwriters determine the offering price of an IPO by collecting and recording investor demand at various price levels. During book building, institutional investors indicate how many shares they want and at what price, helping the underwriter gauge demand and set the final price.

A contractual clause allowing the underwriter to reclaim shares from certain investors if demand from other investor categories exceeds expectations. Clawback provisions help ensure equitable distribution of shares across different investor types in oversubscribed offerings.

A large institutional investor that commits to purchasing a significant portion of an IPO before the public offering begins. Cornerstone investors provide price stability and signal confidence to other market participants, often receiving guaranteed allocations in return.

The process by which a Special Purpose Acquisition Company (SPAC) completes its merger with a target operating company, effectively taking the target public. The de-SPAC transaction involves shareholder votes, SEC filings, and often additional financing through PIPE (Private Investment in Public Equity) deals.

The reduction in existing shareholders' ownership percentage when new shares are issued during an IPO. Dilution occurs because the total number of outstanding shares increases, spreading ownership across more shareholders. Understanding dilution is critical for evaluating the true cost of going public.

An alternative to a traditional IPO where a company lists its existing shares on a stock exchange without issuing new shares or using underwriters. Direct listings avoid dilution and underwriting fees but provide no price stabilization. Companies like Spotify and Coinbase used this method to go public.

The central securities depository in the United States that holds and facilitates the electronic transfer of securities. When IPO shares are allocated, they are typically deposited into the DTC system for efficient settlement and clearing between broker-dealers.

A pricing method where investors submit bids indicating the number of shares desired and the price they are willing to pay. The offering price is set at the highest price that allows all shares to be sold. Google famously used a Dutch auction for its 2004 IPO.

The date on which the SEC declares a company's registration statement effective, clearing the way for shares to be sold to the public. The effective date typically comes after the SEC completes its review and the company addresses any comments or required amendments.

The self-regulatory organization that oversees broker-dealers in the United States. FINRA reviews underwriting compensation and arrangements in IPOs to ensure they are fair and comply with industry standards, protecting investors from excessive fees.

An underwriting agreement where the investment bank purchases all IPO shares from the issuer and resells them to the public, assuming the full financial risk if shares cannot be sold. This is the most common underwriting structure for large IPOs and guarantees the company receives the agreed-upon proceeds.

The percentage increase in a stock's price from its IPO offering price to its closing price on the first day of trading. A large first-day pop benefits initial investors but may indicate the company left money on the table by pricing too low.

The practice of selling IPO shares immediately or shortly after they begin trading to capture the first-day pop. Underwriters generally discourage flipping as it can create selling pressure and destabilize the stock price in the critical early trading period.

The number of shares available for public trading after an IPO. Float excludes restricted shares held by insiders, employees, and locked-up investors. A smaller float relative to demand can lead to higher price volatility in the aftermarket.

An additional issuance of stock by a company that is already publicly traded. Follow-on offerings can be primary (new shares, raising capital for the company) or secondary (existing shareholders selling their shares). They are common after lock-up periods expire.

An investor who attempts to purchase IPO shares without having sufficient funds in their account, planning to sell quickly for a profit and use the proceeds to cover the purchase. FINRA regulations prohibit free-riding and require accounts to be fully funded before settlement.

An over-allotment option allowing underwriters to sell up to 15% more shares than originally planned if demand exceeds expectations. Named after the Green Shoe Manufacturing Company (the first to use it), this mechanism helps stabilize the stock price by allowing underwriters to cover short positions created during price support activities.

The process by which a private company offers shares of stock to the public for the first time, transitioning from private to public ownership. An IPO allows companies to raise capital from public investors while providing existing shareholders with liquidity. The process involves SEC registration, underwriter selection, roadshows, and pricing.

A schedule of upcoming initial public offerings, including expected pricing dates, trading dates, and filing information. IPO calendars are maintained by financial data providers and help investors plan their participation in new offerings and manage capital allocation.

The Jumpstart Our Business Startups Act of 2012, which created the Emerging Growth Company (EGC) designation and relaxed certain SEC reporting and disclosure requirements for smaller companies going public. The JOBS Act also enabled Regulation A+ offerings, sometimes called 'mini-IPOs,' allowing companies to raise up to $75 million from public investors.

The primary investment bank responsible for organizing and managing an IPO. The lead manager (or lead bookrunner) coordinates the syndicate, manages the book building process, sets the price range, and leads investor marketing efforts including the roadshow.

A contractual restriction, typically lasting 90 to 180 days after an IPO, during which insiders, employees, and early investors are prohibited from selling their shares. Lock-up periods prevent a flood of insider selling that could depress the stock price. The expiration of lock-ups often leads to increased trading volume.

The minimum number of shares an investor must purchase in an IPO subscription. Lot sizes vary by offering and are designed to ensure equitable distribution across investors while keeping administrative costs manageable for the registrar and transfer agent.

A financial firm that provides liquidity by continuously quoting both buy and sell prices for a security. In the context of IPOs, market makers play a crucial role in establishing orderly trading when shares first begin trading on an exchange, helping to reduce volatility.

The practice of selling more shares in an IPO than originally planned, typically facilitated through the greenshoe option. Overallotment allows underwriters to meet excess investor demand and provides a mechanism for post-IPO price stabilization through the repurchase of excess shares.

The preliminary price band set by underwriters during the book building process, indicating the expected per-share offering price for an IPO. The final price may be set within, above, or below this range depending on investor demand during the roadshow.

A formal legal document filed with the SEC that provides detailed information about an investment offering to the public. For IPOs, the prospectus includes the company's financial statements, business description, risk factors, use of proceeds, and management team. It is the primary document investors use to evaluate an IPO.

The period following an IPO filing during which the company and its underwriters are restricted from making public statements or promotional materials that could influence investor demand. The SEC enforces quiet period rules to prevent hype and ensure investors make decisions based on the prospectus disclosure.

A preliminary prospectus filed with the SEC that contains most of the information about the IPO but excludes the final offering price and number of shares. Named for the red legend printed on its cover warning that the filing is not yet effective, it is distributed to potential investors during the roadshow.

The comprehensive set of documents filed with the SEC to register securities for public sale. For IPOs, the registration statement includes the prospectus and additional information about the company, its officers, and the offering terms. The SEC reviews these filings before declaring them effective.

An SEC exemption that allows smaller companies to raise up to $75 million from the public with reduced disclosure requirements compared to a full IPO. Often called a 'mini-IPO,' Regulation A+ offerings are popular with companies seeking to raise capital from retail investors without the full cost of a traditional IPO.

Shares issued to insiders, employees, and early investors that are subject to transfer restrictions and cannot be freely traded on the public market. Restricted stock typically becomes eligible for sale after the lock-up period expires, subject to SEC Rule 144 volume and holding period requirements.

A series of presentations by a company's management team to potential institutional investors in the weeks before an IPO. The roadshow allows executives to pitch their business, explain growth strategy, and generate investor interest. Meetings typically take place across major financial centers and increasingly include virtual presentations.

An SEC regulation that governs the public resale of restricted and control securities. Rule 144 requires holders to meet specific conditions — including holding periods and volume limitations — before they can sell. It is particularly relevant for insiders selling shares after IPO lock-up periods expire.

The registration statement form used by US companies to register securities with the SEC for an initial public offering. The S-1 contains detailed information about the company's business model, financials, risk factors, management team, and how IPO proceeds will be used. It is the foundational document of the IPO process.

The US federal agency responsible for regulating securities markets and protecting investors. The SEC reviews IPO registration statements, enforces disclosure requirements, and ensures that companies provide material information to investors before going public.

A public sale of securities by existing shareholders rather than the issuing company. In a secondary offering, the company does not receive any proceeds — the selling shareholders pocket the funds. Secondary components are common in IPOs where early investors or founders want partial liquidity.

An SEC provision (Rule 415) that allows a company to register a new issue of securities without selling the entire offering at once. After the initial registration, the company can sell portions of the offering over time as market conditions allow, providing flexibility in timing and sizing.

A publicly traded shell company formed solely to raise capital through an IPO for the purpose of acquiring an existing private company. SPACs provide an alternative path to going public, with the target company merging into the SPAC rather than conducting its own IPO. The SPAC typically has 18-24 months to complete an acquisition.

Post-IPO trading activity by the underwriter designed to support the stock price and prevent it from falling below the offering price. Stabilization activities include purchasing shares in the open market and exercising the greenshoe option. These activities are legal and disclosed in the prospectus.

A group of investment banks that work together to underwrite and distribute an IPO. The syndicate is organized by the lead manager and typically includes co-managers and selling group members. Each syndicate member is responsible for selling a portion of the offering to their investor clients.

An investment bank that manages the IPO process, including due diligence, SEC filing preparation, pricing, marketing (roadshow), and distribution of shares to investors. The underwriter assumes financial risk in a firm commitment offering and earns fees (typically 3-7% of gross proceeds) for its services.