II 300 Annual ranking for the 300 largest money managers in the U.S. December 17, 2025 Institutional Investor's 2009 ranking of the 300 largest money managers in the U.S. Biggest Asset Managers Ii300 Ii 300 Largest Money Managers Asset Management Top Money Managers Related Articles Premium Asset Managers Ruffled by Regulator’s Late Push to Oversee Bank Investments Maureen Nevin Duffy How many rankings does Institutional Investor produce each year? QA Author 11 Industries: Banking & Financial Services 2010 First Sponsored by XLR8