iShares BBB-B CLO Active ETF (BCLO) is an actively managed exchange-traded fund that seeks capital preservation and current income by investing principally in a diversified portfolio of collateralized loan obligations (CLOs) rated from BBB+ to B-; it primarily holds U.S. dollar-denominated CLO debt tranches backed by pools of broadly syndicated loans, with at least 80% of assets allocated to such securities managed by third-party CLO collateral managers; the fund benchmarks against the JP Morgan CLO High Quality Mezzanine Index and employs active management to capture alpha opportunities through security selection and relative value analysis. Launched on January 29, 2025, by BlackRock ETF Trust II and managed by BlackRock Fund Advisors as part of the iShares brand, the ETF is headquartered in Wilmington, Delaware, with portfolio management led by Saffet Ozbalci (Global Head of Structured Credit), Nidhi Patel, and Jason Choi; it features a net expense ratio of 0.45%, monthly distributions, and as of late 2025 holds approximately 40-43 positions with top holdings including OAKC_17_14A-D1R (5.42%), PLMRS_24-4A-C (4.54%), and GLM_10-R-DR (4.12%); the fund targets individual and institutional investors seeking exposure to higher-yielding, less liquid fixed income segments with lower correlation to traditional bonds. BlackRock launched BCLO in January 2025 to expand its active ETF suite and broaden retail access to the CLO market, leveraging its dedicated CLO team that oversees over $30 billion in global CLO assets including the related iShares AAA CLO Active ETF (CLOA); this launch aligns with BlackRock's broader private credit strategy, bolstered by its acquisition of HPS Investment Partners, which more than doubled its private credit capabilities; the fund has grown to around $65-70 million in assets under management by mid-2025 amid increasing demand for diversified income in evolving macro conditions. The ETF operates globally through its U.S.-focused CLO holdings but is available primarily to U.S. investors via Nasdaq listing, fitting within the securitized bond and floating-rate credit segments of the fixed income market.