A Statement of Additional Information, or SAI, is the supplemental disclosure document that every mutual fund and exchange-traded fund files alongside its prospectus. It exists because federal law requires funds to disclose more information than fits comfortably in a sales document, and the SAI is where the rest of that detail lives. The prospectus gives you the fund’s goals, fees, and headline risks. The SAI covers the operational fine print: exact investment policies, historical financials, who runs the fund and what they’re paid, how the fund votes proxies, and what it spends on brokerage.
Technically, the SAI is Part B of a fund’s registration statement on Form N-1A, the SEC’s standard registration form for open-end investment companies.1U.S. Securities and Exchange Commission. Form N-1A The statutory prospectus is Part A. Both are part of the same legal filing, and a material misstatement in the SAI carries the same liability as one in the prospectus.
What’s Inside
The backbone of the SAI is the fund’s statement of fundamental investment policies. Under Section 8(b) of the Investment Company Act of 1940, every registered fund must describe its approach to borrowing money, issuing senior securities, underwriting other companies’ securities, concentrating investments in a single industry, buying real estate or commodities, making loans, and portfolio turnover.2Office of the Law Revision Counsel. 15 USC 80a-8 – Registration of Investment Companies These are called fundamental policies because the fund cannot change them without a shareholder vote. If you want to know whether a fund is allowed to use leverage or load up on a single sector, this is where you find out.
The SAI also expands on strategies and risks the prospectus only summarizes. Expect specifics on the derivatives the fund uses, when it uses them, and the internal limits it sets. Historical financial statements give you a retrospective on fiscal performance, and portfolio turnover figures show how actively the fund trades. High turnover means more transaction costs, which reduce your returns.
Who Runs the Fund and What They’re Paid
Form N-1A requires disclosure of the names, ages, and business experience of every director and officer.1U.S. Securities and Exchange Commission. Form N-1A The Investment Company Act calls for a brief statement of each person’s business experience over the preceding five years, along with any other companies where they hold a leadership role.2Office of the Law Revision Counsel. 15 USC 80a-8 – Registration of Investment Companies Those outside affiliations can reveal conflicts that the prospectus never surfaces.
Compensation appears in its own table. For every director and every officer earning more than $60,000 in aggregate compensation from the fund, the SAI must show the exact dollar amount paid by the fund, any pension or retirement benefits accrued as fund expenses, estimated annual retirement benefits, and total compensation from the entire fund complex.1U.S. Securities and Exchange Commission. Form N-1A The SAI also identifies principal shareholders and control persons with stakes large enough to influence fund decisions.
Proxy Voting Policies
When a fund owns stock in other companies, it votes on shareholder proposals at those companies. The SAI must describe the policies and procedures the fund uses to make those voting decisions, including how it handles votes where shareholder interests conflict with the interests of the fund’s adviser or underwriter.3Federal Register. Disclosure of Proxy Voting Policies and Proxy Voting Records by Registered Management Investment Companies If you care how your fund votes on executive pay or environmental proposals, this is the section to read.
Brokerage Commissions and Soft Dollars
One of the more practical disclosures in the SAI is trading cost data. Funds other than money market funds must report the actual dollar amount of brokerage commissions paid during their three most recent fiscal years.4U.S. Securities and Exchange Commission. Request for Comments on Measures To Improve Disclosure of Mutual Fund Transaction Costs These commissions come directly out of fund assets and reduce your returns, but they don’t appear in the expense ratio.
The SAI also covers soft dollar arrangements, where the fund’s adviser directs a portion of brokerage commissions to pay for research or other services the adviser might otherwise buy out of its own pocket. That creates an incentive to trade more than necessary. If you’re comparing two similar funds and one has much higher commission costs, the SAI can tell you why.
How the SAI Connects to the Prospectus
When a fund uses a summary prospectus under SEC Rule 498, it may incorporate by reference information from both the statutory prospectus and the SAI.5eCFR. 17 CFR 230.498 – Summary Prospectuses for Open-End Management Investment Companies That’s how the summary prospectus stays short and readable while still meeting the SEC’s full disclosure requirements: the SAI backstops it. The fund’s website must let you move directly between sections of the summary prospectus and the corresponding sections of the SAI, so the two documents work as a connected set. Both are updated annually.
How to Get One
Every fund prospectus tells you the SAI is available free of charge. Under Rule 498, when you request a copy, the fund must send the SAI in paper or by email within three business days at no cost.6U.S. Securities and Exchange Commission. Enhanced Disclosure and New Prospectus Delivery Option for Registered Open-End Management Investment Companies Most fund companies also post the SAI on their websites alongside the prospectus and shareholder reports, so you can usually download it right away.
You can also pull any fund’s SAI from the SEC’s EDGAR database, which offers free public access to all fund filings.7U.S. Securities and Exchange Commission. Search Filings Search by the fund’s name and filter by filing type to find the most recent SAI.8U.S. Securities and Exchange Commission. EDGAR Full Text Search FAQ EDGAR is especially useful for comparing SAIs across multiple funds in one place.