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| Mutual fund (United States) | |
|---|---|
| Name | Mutual fund (United States) |
| Type | Open-end investment company |
| Founded | 19th century |
| Industry | Financial services |
| Assets | Trillions (aggregate) |
Mutual fund (United States) is a pooled investment vehicle organized as an open-end investment company that sells redeemable securities to the public and invests in portfolios of stocks, bonds, cash instruments, and other assets. Mutual funds in the United States are offered by investment companies subject to federal securities law and are sold through broker-dealers, banks, and retirement plan platforms. They play a central role in household saving, institutional asset allocation, and workplace retirement in the United States.
The modern U.S. mutual fund industry traces roots to the 19th century with early collective investment trusts like the Boston Personal Property Trust and later innovations such as the Massachusetts Investors Trust in 1924, which prefigured growth driven by the New Deal era and post-World War II expansion. Regulatory responses to market crises, notably the Securities Act of 1933 and the Investment Company Act of 1940, reshaped fund structures alongside institutional developments at firms like Vanguard Group, Fidelity Investments, and American Century Investments. The rise of index funds following the academic work of John C. Bogle and the empirical research of Eugene Fama and Ken French catalyzed passive investing, while technological advances at firms such as Charles Schwab Corporation and TD Ameritrade transformed distribution. Market events including the 1973–1974 stock market crash, the 1987 stock market crash, the Dot-com bubble, and the 2008 financial crisis prompted product innovation, greater transparency, and consolidation among firms like BlackRock and State Street. Legislative and regulatory changes in the 21st century, influenced by policymakers including chairs of the Securities and Exchange Commission and rulings in federal courts, continue to shape industry structure.
U.S. mutual funds are principally governed by the Investment Company Act of 1940 and registered under the Securities Act of 1933, with oversight by the Securities and Exchange Commission. Fund governance involves independent directors and custodial banks such as State Street Corporation and Bank of New York Mellon, and advisors often register as investment advisers under the Investment Advisers Act of 1940. Distribution channels adhere to rules promulgated by the Financial Industry Regulatory Authority and sales practices are influenced by standards from the North American Securities Administrators Association and federal courts interpreting fiduciary duty. Funds can be organized as open-end management companies, closed-end funds subject to New York Stock Exchange or NASDAQ listing rules, or as exchange-traded funds implemented through statutory exceptions and the SEC’s exemptive orders. Disclosure obligations include prospectuses and shareholder reports governed by SEC rules and case law from circuits including the D.C. Circuit.
Mutual funds encompass a wide array of vehicles: equity funds investing in securities of issuers listed on exchanges such as the New York Stock Exchange and NASDAQ, fixed-income funds focused on obligations like U.S. Treasury securities and corporate bonds, balanced funds blending asset classes, money market funds governed by Rule 2a-7, and target-date funds tailored for retirement timelines. Active management strategies are deployed by firms including T. Rowe Price and Oakmark while passive indexing is epitomized by offerings from Vanguard and BlackRock’s iShares. Specialized funds pursue small-cap, large-cap, growth, value, sector-focused exposures (e.g., Standard & Poor's 500 Index, sector ETFs), international and emerging market mandates involving instruments tied to jurisdictions such as United Kingdom, Japan, and Brazil, or alternative strategies including multi-strategy, long/short, and commodity-linked funds. Share classes (A, B, C) reflect differing distribution and expense arrangements and funds may offer institutional share classes to pension funds and endowments such as Harvard University’s endowment.
Fee structures include management fees, 12b-1 distribution fees, sales loads, and operational expenses disclosed in the prospectus and the fund’s expense ratio. Performance is evaluated relative to benchmarks like the S&P 500, Russell 2000, and indices maintained by MSCI using measures such as alpha and beta from the capital asset pricing model and risk-adjusted metrics including the Sharpe ratio and information ratio. Regulatory scrutiny on fees has involved the Department of Labor and SEC initiatives, and litigation has arisen under statutes including the Investment Company Act of 1940 when directors allegedly failed to negotiate fair advisory contracts. Fee competition from low-cost providers like Vanguard Group and index innovators has compressed margins and spurred consolidation among asset managers including Franklin Templeton and Invesco.
Mutual funds are tax-transparent to shareholders under provisions of the Internal Revenue Service rules, with fund distributions of dividends and capital gains subject to federal income tax unless held in tax-advantaged accounts such as Individual Retirement Accounts or 401(k) plans. Funds meet requirements for regulated investment company status to avoid entity-level tax, and shareholders receive Form 1099-DIV reporting distributions. Shareholder rights include voting on advisory contracts, changes to fundamental policies, and election of independent trustees; institutional investors and retail shareholder advocacy groups like Institutional Limited Partners Association and Shareholder Rights Project influence governance outcomes. Proxy rules administered by the SEC and intermediaries such as Broadridge Financial Solutions affect participation in shareholder meetings.
Distribution channels range from full-service brokerage networks associated with firms like Morgan Stanley and Merrill Lynch to direct-to-consumer platforms operated by Vanguard and online brokers including Robinhood Markets and E*TRADE Financial. Marketing practices are regulated under SEC advertising rules and supervised by FINRA; fund supermarkets and recordkeepers such as Fidelity Investments and TIAA facilitate workplace retirement plan offerings. Mutual funds are foundational to defined contribution plans like 401(k)s and to defined benefit plan investment overlays, influencing long-term savings for participants at companies such as General Electric and IBM. The penetration of target-date funds as default investment options has been shaped by guidance from the Department of Labor and litigation concerning fiduciary standards.