The fund invests in equity securities of companies substantially in the same proportion as its underlying index. These securities are listed on stock exchanges globally, and are classified as: (i) companies which are active in the uranium industry, particularly including mining, exploration, investments and technologies related to such industry, and (ii) companies that invest directly in uranium, either in the form of uranium oxide in concentrates or uranium hexafluoride. Rebalanced annually, the portfolio is market-cap-weighted subject to caps.