The Global Allocation Fund (MDLOX), the Strategic Income Opportunities Fund (BSIIX) and the Multi-Asset Income Fund (BAICX) are BlackRock mutual funds. As of 2015, BlackRock states on its website that these are its top mutual funds.
The Global Allocation Fund invests in U.S. and international equity and securities, explains Blackrock. As of June 30, 2015, the fund reports yields of 100 percent or higher for any consecutive 10-year period, with the lowest 10-year return at 101 percent. The Strategic Income Opportunities Fund invests in bonds and reports higher returns than the Morningstar average for traditional bonds, as of Dec. 31, 2013. The Multi-Asset Income Fund pursues diversified investments in global assets, including fixed and nontraditional income sources, according to MarketWatch.