BondBloxx Bloomberg Ten Year Target Duration US Treasury ETF (XTEN) is an exchange-traded fund that seeks to track the investment results of the Bloomberg US Treasury Ten Year Target Duration Index, which comprises U.S. Treasury securities with an average duration of approximately 10 years; the fund holds a diversified portfolio of Treasury notes and bonds across various maturities, such as U.S. Treasury Notes 4.625% due 02/15/35, 4.25% due 08/15/35, and 4% due 02/15/34, among others, providing targeted exposure to intermediate-term U.S. government debt for income generation and interest rate management. XTEN distributes income monthly and features a low expense ratio of 0.075%, with net assets exceeding $861 million as of late 2025 and shares traded on NYSE Arca. Issued by BondBloxx Investment Management Corporation, founded in 2021 and headquartered in Larkspur, California, the firm specializes in precision fixed income ETFs covering U.S. Treasuries, investment grade corporates, high yield, tax-aware strategies, emerging markets, and private credit, serving institutional and retail investors seeking enhanced liquidity and transparency in bond markets primarily within the United States. In recent developments, BondBloxx raised $27 million in a funding round in October 2024 led by Macquarie Asset Management to expand its ETF platform, including client solutions and technology; the firm partnered with Macquarie for a planned first-of-its-kind private credit CLO ETF filing in September 2024 and launched two new tax-aware fixed income ETFs with IR+M in March 2025; additionally, BondBloxx was named 2025 Best International Fixed Income ETF Issuer by ETF Express and released its 2026 Fixed Income Outlook in December 2025.