The 2022 Investment Company Factbook provides a comprehensive review of trends and activities in the investment company industry. As of 2021, the worldwide assets invested in regulated open-end funds reached $71.1 trillion, with the United States accounting for $34.2 trillion. The US-registered investment company total net assets were $34.6 trillion, with mutual funds making up the largest share at $27 trillion. The US household ownership of US-registered funds stood at 62.2 million, with a median mutual fund asset of $200,000. The US retirement market had total retirement assets of $39.4 trillion, with 63% of households having DC plan and IRA assets invested in mutual funds. The Factbook is published by the Investment Company Institute and is available in English, French, German, Italian, Japanese, Portuguese, and Spanish.