FlexShares Ultra-Short Income Fund (RAVI) is an exchange-traded fund in the Ultrashort Bond category. It has $1.45B in assets, an expense ratio of 0.25% and a 4.37% dividend yield. The fund seeks to achieve its investment objective by investing at least 80% of its total assets in a portfolio of fixed-income instruments, including bonds, debt securities and other similar instruments issued by U.S. and non-U.S. public and private sector entities. The dollar-weighted average portfolio maturity of the fund is normally not expected to exceed two years. It may invest up to 20% of its total assets in fixed-income securities and instruments of issuers in emerging markets.