Bondbloxx Bloomberg One Year Target Duration US Treasury ETF (XONE) is an exchange-traded fund that seeks to track the performance of the Bloomberg One Year Target Duration US Treasury Index, providing targeted exposure to U.S. Treasury securities with an effective duration of approximately one year; it offers investors a low-risk, short-term fixed income option through a portfolio of high-quality government bonds maturing within a narrow duration band. The ETF's core offerings include passive management of Treasury holdings, daily liquidity via NYSE Arca trading, and dividend distributions from bond interest; it caters to institutional and retail investors seeking capital preservation, yield in a rising rate environment, and precise duration matching for liability hedging or portfolio balancing. Launched in 2022 by BondBloxx Investment Trust, a specialist in fixed income ETFs founded in collaboration with Bloomberg Index Services Limited, and headquartered in Wilmington, Delaware with operational oversight from its investment adviser in New York, XONE operates primarily in the U.S. markets without international geographic expansion. Recent developments include the expansion of the BondBloxx ETF suite with additional duration-targeted funds in 2023-2024 to cover a broader spectrum of Treasury maturities; a strategic partnership enhancement with Bloomberg L.P. for index licensing and data analytics integration announced in mid-2024; and increased assets under management surpassing $500 million by late 2025 amid heightened demand for short-duration safe-haven assets during Federal Reserve policy normalization. The fund targets conservative fixed income segments, including money market alternatives and tactical allocation strategies, with no subsidiaries or parent entities beyond the Trust structure.