February 23, 2021 The debt market is a vast sea that investors often can’t simply navigate on their own. Novice bond investors can get complete exposure via ETFs like the IUSB seeks to track the investment results of the Bloomberg Barclays U.S. Universal Index. The fund generally will invest most of its assets in the component securities of the index and may also invest in certain futures, options and swap contracts, cash and cash equivalents, including shares of money market funds advised by BFA or its affiliates, as well as in securities not included in the underlying index, but which BFA believes will help the fund track the underlying index.