SMRZ is a nuclear energy ETF focused on small modular reactor (SMR) technology and its supply chain. Investments include companies that develop, commercialize, build, or service SMRs, or supply specialized nuclear fuel, components, and related technologies. The fund uses a reference index to identify potential investments but does not simply track it. Instead, the adviser actively selects about 15 global companies. Eligible securities are assessed based on SMR-related revenue and development-stage criteria. Holdings are classified as anchors (up to 20% each), core (515%, up to 20% if fewer than two anchors), or relevant (emerging developers and specialized suppliers). The Index rebalances quarterly, but SMRZ's holdings may differ. The Fund may use derivatives such as swaps for exposure. The fund may also hold cash, money market funds, short-term debt, and US treasuries as collateral.