The investment seeks to meet its investment objective generally by investing in component securities of the Bloomberg Barclays December 2027 Maturity Corporate Index. The fund generally will invest at least 90% of its assets in the component securities of the underlying index, except during the last months of the fund's operations, and may invest up to 10% of its assets in certain futures, options and swap contracts, cash and cash equivalents, including shares of money market funds. The index is composed of U.S. dollar-denominated, investment-grade corporate bonds maturing in 2027.