Research
Ownership of Mutual Funds and Shareholder Sentiment, 2025 (pdf)
The Wealth-Building Power of 401(k) Plans
The 401(k) plan continues to offer workers across all income levels a disciplined way to save and invest, helping them build significant assets over time. The continued success of these plans shows...
A Close Look at Exchange-Traded Funds and Their Investors
Exchange-traded funds (ETFs) have grown significantly in the United States since their introduction in 1993. Over the past decade alone, total net assets have increased from $2.1 trillion at year-end 2015 to $11.5 trillion as of June 2025.
Americans’ Views on E-Delivery of Financial Documents
Read our survey on the views of Americans generally, and fund investors in particular, on the e-delivery of financial documents and their general comfort using the internet for financial transactions.
Latest Statistical Publications
Retirement Market
529 Plans
ETFs
Historical Report: Exchange-Traded Fund Data, October 2025 (xls)
Login or click here to get access to our Member Statistical ReportSupplement: Exchange-Traded Fund Data, October 2025 (xls)
Login or click here to get access to our Member Statistical ReportFunds
Report: Aggregate Monthly Mutual Fund Historical File, October 2025 (xls)
Login or click here to get access to our Member Statistical ReportMutual
Report: Aggregate Monthly Mutual Fund Historical File, October 2025 (xls)
Login or click here to get access to our Member Statistical ReportFunds
Report: Aggregate Monthly Mutual Fund Historical File, October 2025 (xls)
Login or click here to get access to our Member Statistical ReportTrends
Report: Aggregate Monthly Mutual Fund Historical File, October 2025 (xls)
Login or click here to get access to our Member Statistical ReportMarket Data
Unit
Historical Report: Unit Investment Trust Data, November 2025 (xlsx)
Login or click here to get access to our Member Statistical ReportInvestment Trusts
Report: Combined Active and Index Mutual Funds and ETFs, October 2025 (xls)
ICI Research
Showing Results 25 - 30 of 1760 TotalMeet the Research Team
2025 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