MAMB
The fund generally invests at least 80% of its total assets in the constituents of the index. The index is designed to measure the performance of an investable universe of fixed income securities of varying credit quality and duration, including corporate bonds, lower-quality bonds, known as "high yield" or "junk" bonds, treasury bonds, municipal bonds, mortgage backed securities and convertible bonds, that provide broad exposure to the U.S. and global bond market.