iShares iBonds Dec 2031 Term Treasury ETF (IBTL), an exchange-traded fund sponsored and managed by BlackRock, Inc., seeks to track the investment results of an index composed of U.S. Treasury bonds maturing between January 1, 2031, and December 15, 2031. The fund employs a representative sampling technique to hold a portfolio primarily consisting of U.S. Treasury securities issued by the United States Department of the Treasury, including notes and bonds with various coupon rates such as 1.125%, 1.25%, 1.375%, 1.625%, and 4.625%; it distributes interest income to investors and is designed to terminate in December 2031, returning principal to shareholders. With an expense ratio of 0.07%, IBTL targets fixed-income investors seeking targeted duration exposure to the U.S. Treasury market, operates globally through listings on Nasdaq, and maintains nearly 100% allocation to U.S. Treasuries domiciled in the United States.
Launched on July 13, 2021, and headquartered in New York alongside its sponsor BlackRock, the ETF forms part of the broader iShares iBonds ETF suite, which includes similarly structured term Treasury funds maturing in other years. Recent portfolio management enhancements include the addition of Jonathan Graves as a co-portfolio manager effective around August 1, 2025, alongside James Mauro and Marcus Tom, as approved by the iShares Trust Board of Trustees. In early 2025, the fund's prospectus noted potential extensions to its termination date subject to Board determination in shareholders' best interests, alongside operational updates for related iBonds funds, reflecting ongoing refinements to the product's structure amid stable yield environments. No major acquisitions, funding rounds, or strategic alliances specific to IBTL were reported in the last 1-2 years, with focus remaining on core Treasury holdings and low-volatility performance.