iShares MSCI USA Mid-Cap Equal Weight UCITS ETF (IUSZ.L) is an exchange-traded fund that seeks to track the performance of the MSCI USA Mid-Cap Equal Weighted Index by investing in mid-cap companies from the United States using a representative sampling methodology; it employs physical replication on an optimized basis and accumulates dividends. The ETF provides exposure to approximately 305 mid-cap U.S. equities across various sectors, with a total expense ratio of 0.20%, fund size of USD 316 million, and currency unhedged in USD. Launched on October 13, 2016, it is domiciled in Ireland as part of iShares IV plc, issued by BlackRock Asset Management Ireland Limited, and managed by BlackRock Advisors (UK) Limited, with State Street Custodial Services (Ireland) Limited serving as custodian.
The fund lists on multiple exchanges including the London Stock Exchange (IUSZ USD and IUSF GBP), Xetra (QDVC EUR), SIX Swiss Exchange (IUSZ USD), and Bolsa Mexicana de Valores (IUSZ MXN); it targets institutional and retail investors seeking diversified U.S. mid-cap equal-weight exposure, primarily in Europe and select global markets. Geographic operations focus on U.S. equity markets for holdings while the fund structure supports trading and distribution across the European Economic Area, United Kingdom, Switzerland, and other registered locations such as Austria, Germany, France, and Italy.
In recent developments, iShares announced the delisting or cancellation of certain trading lines for this ETF, including on the SIX Swiss Exchange and London Stock Exchange, effective October 28, 2025, as part of a broader rationalization of 18 ETF trading lines across European exchanges to streamline offerings while maintaining the underlying share classes' operations.