The Fund normally invests at least 80% of its total assets in securities that comprise the Funds benchmark index. The BBB Index is comprised of U.S. dollar-denominated corporate bonds issued in the U.S. domestic market that have a BBB rating based on the bonds composite rating, which is an average of ratings from various rating agencies. Bonds no longer rated BBB, including non-investment grade bonds, are removed from the BBB Index at the end of the month in which they are upgraded or downgraded in connection with the BBB Indexs next scheduled rebalance. The BBB Index is comprised of bonds issued by both U.S. and non-U.S. issuers that the BBB Index provider determines to have an attractive valuation based on proprietary credit risk metrics developed by Moodys Analytics, Inc. (Moodys Analytics). Further, bonds that the BBB Index provider determines to have the highest probability of being downgraded to non-investment grade, based on proprietary credit risk metrics developed by Moodys Analytics, are excluded from the BBB Index.