Research
Stay informed with the most recent data, trends, and analysis from ICI’s Research team.
What US Households Consider When They Select Mutual Funds, 2025 (pdf)
Supplemental Info
All data and visuals for this document are available for download.
Who Participates in Retirement Plans, 2020 (pdf)
Supplemental Info
All data and visuals for this document are available for download.
The ICI/ISS MI Defined Contribution Plan Profile: A Close Look at 401(k) Plans, 2023 (pdf)
The latest ICI/ISS Mutual Fund Institute Defined Contribution Plan Profile study examines private-sector 401(k) plans in 2023 and finds that employers play a critical role in the success of 401(k) plans and their ability to help American workers prepare for retirement.
Supplemental Info
All data and visuals for this document are available for download.
American Views on Defined Contribution Plan Saving, 2025 (pdf)
Supplemental Info
All data and visuals for this document are available for download.
Latest Statistical Publications
Retirement Market
Statistical Report
Report: The US Retirement Market, First Quarter 2026 (xls)
(Quarterly)
Published:
529 Plans
ETFs
Statistical Report
Historical Report: Exchange-Traded Fund Data, May 2026 (xls)
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Published:
Statistical Report
Supplement: Exchange-Traded Fund Data, May 2026 (xls)
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Published:
Funds
Statistical Report
Supplement: Trends in Mutual Fund Investing, May 2026 (xls)
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Published:
Mutual
Statistical Report
Supplement: Trends in Mutual Fund Investing, May 2026 (xls)
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Published:
Funds
Statistical Report
Supplement: Trends in Mutual Fund Investing, May 2026 (xls)
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Published:
Trends
Statistical Report
Supplement: Trends in Mutual Fund Investing, May 2026 (xls)
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Published:
Market Data
Unit
Statistical Report
Historical Report: Unit Investment Trust Data, May 2026 (xlsx)
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(Monthly)Published:
Investment Trusts
Statistical Report
Report: Combined Active and Index Mutual Funds and ETFs, May 2026 (xls)
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Published:
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2026 Investment Company Fact Book
Explore the comprehensive guide to trends, data, and insights in in the investment company industry.
Glossary of Investing terms
You can find more information about many of these entries in the chapters and appendix of the Investment Company Fact Book