A prospectus is a formal legal document that a company or investment fund must provide to prospective investors before selling them securities. For public company stock offerings, the SEC requires a prospectus under the Securities Act of 1933. For mutual funds and ETFs, the Investment Company Act of 1940 requires one. The prospectus contains everything a reasonable investor needs to make an informed decision: the company's business description, audited financial statements, risk factors, management background, use of proceeds from the offering, and the terms of the securities being sold.
Think of a prospectus as the full legal disclosure document that sits behind every securities transaction: the tombstone advertisement tells you the deal exists, but the prospectus tells you everything about it.
A company going public files two versions of a prospectus. The preliminary prospectus, informally called the red herring because of the red ink disclaimer on its cover, is distributed during the roadshow to gauge investor interest. It contains all material information about the company but does not include the final offering price or the number of shares to be sold. After the bookbuilding is complete, the company files the final prospectus with the SEC on Form S-1 or Form 424B, which contains the actual offering price, exact share count, and any final financial updates.
SEC rules specify the required contents in detail under Regulation S-K for business disclosures and Regulation S-X for financial statements. Every prospectus must include:
Mutual funds and ETFs must provide a prospectus before or at the time of an investor's first purchase. The statutory prospectus is the full legal document required by the Investment Company Act. The summary prospectus, introduced by the SEC in 2009, allows investors to receive a shorter document covering the fund's objectives, fees, risks, and performance, with a link to the full statutory prospectus online. Most investors today interact primarily with the summary prospectus.
For fund investors, the fee table in the prospectus is the most immediately useful section. It shows annual fund operating expenses as a percentage of assets, broken down into management fees, distribution fees, and other expenses. A fund with a total expense ratio of 0.03% charges dramatically less than one with 1.25%, and the prospectus is where this difference is disclosed with precision.
The prospectus also contains the fund's standardized performance table showing 1-year, 5-year, and 10-year returns, calculated using SEC-mandated methods to ensure comparability across funds. These returns represent past performance and do not predict future results, but they provide the baseline for evaluating whether the fund's management is adding value relative to its benchmark.
All prospectuses for SEC-registered securities are publicly available on EDGAR, the SEC's Electronic Data Gathering, Analysis, and Retrieval database at sec.gov. Fund prospectuses are also available directly from the fund company's website. You have a legal right to receive a prospectus before buying any publicly offered security, and your broker is required to deliver it.