From Longman Business Dictionarymanaged fundˈmanaged ˈfund [countable]FINANCE a fund where INVESTMENT MANAGERs actively buy and sell investments and try to increase the fund’s value by more than the general increase in the value of the markets they invest inWhen managed funds get very large, it might be impossible for a manager to deploy them effectively.Managed funds allow investors to give the investment manager all the responsibility for choosing a diversified range of investments. → fund