what is the official source for fund flow data?

The official source for fund flow data is the Investment Company Institute (ICI). They provide estimated long-term mutual fund flows, which include data on equity and bond funds. These estimates are derived from data covering 98 percent of industry assets, and they reflect changes in fund holdings that have occurred on a monthly basis. 1. **ICI's Research on Fund Flows**: The ICI is a reputable source for fund flow data, providing insights into the investment behavior of institutional investors. Their estimates are based on comprehensive industry data and offer a detailed view of fund inflows and outflows. 2. **EPFR's Fund Flow Data**: EPFR is another prominent provider of fund flow data, covering a universe of over 151,000 share classes and $55 trillion in assets. Their data is based on as-reported coverage and provides insights into various asset classes, including equities, fixed income, and alternative investments. By combining the data from ICI and EPFR, investors and analysts can gain a comprehensive understanding of fund flow trends and make informed decisions. These sources offer reliable and insightful information on the flow of funds into and out of various investment vehicles.