Morningstar's Fund Family Digest helps investors evaluate the largest fund families in a region as measured by the assets they manage in open-end mutual funds and exchange-traded funds. Back and improved after a five-year hiatus, this edition features the 150 largest fund families in the US.

This report is packed with Morningstar's data, ratings, and insights, highlighting the Parent Pillar rating—one of the three pillars of the Morningstar Medalist Rating. This rating reflects analysts' views on how well an asset manager serves investors' interests, considering factors like investment culture, business structure, and philosophies that guide fees and compensation. Most asset managers in this report are evaluated by Morningstar's research team, while others receive ratings through algorithmic methods.