WisdomTree US Efficient Core UCITS ETF USD Acc (NTSX.MI) is an exchange-traded fund that seeks to track the WisdomTree US Efficient Core UCITS Index (NTR), providing 90% notional exposure to a diversified basket of US large-capitalization equities meeting WisdomTree's ESG criteria; 60% synthetic exposure to US Treasury bond futures contracts with maturities from 2 to 30 years via a futures overlay; and approximately 10% cash collateral, delivering leveraged efficiency to a traditional 60/40 portfolio while aiming to enhance risk-adjusted returns and capital allocation for institutional and retail investors in equities and fixed income overlays. The ETF employs physical replication for equities with optimized sampling of approximately 466 holdings, primarily in information technology, financials, and consumer discretionary sectors; accumulates income; and maintains a total expense ratio of 0.20%, with UCITS compliance, Irish domicile under WisdomTree Issuer ICAV, and listings on Borsa Italiana (NTSX.MI), Börse Xetra (WTEF), and other European exchanges. WisdomTree Issuer ICAV, the umbrella fund established in 2011 (converted to ICAV in 2020) and headquartered at 25 North Wall Quay, Dublin, Ireland, serves as the legal vehicle managed by WisdomTree Management Limited, with WisdomTree, Inc. (founded 1985, headquartered in New York, USA) as the promoter and index provider overseeing a global suite of over 260 ETFs and ETPs focused on equities, fixed income, commodities, and alternatives across North America, Europe, and Asia-Pacific. Launched on October 10, 2023, the ETF forms part of WisdomTree's $1.5 billion Efficient Core range, which expanded in November 2024 with the Global Efficient Core UCITS ETF (NTSG) targeting 90/60 exposure to global developed equities and government bond futures; in October 2025 with the Eurozone Efficient Core UCITS ETF (NTSZ); and through cross-listings and AUM growth amid rising demand for overlay strategies. WisdomTree, Inc. completed its accretive $275 million acquisition of Ceres Partners in October 2025, marking entry into private markets via US farmland investments managing nearly $2 billion, complementing the public ETP platform; alongside robust organic growth including the WisdomTree Europe Defence UCITS ETF surpassing $4 billion AUM by Q3 2025.