Sprott Junior Copper Miners ETF(NASDAQ:COPJ)

COPJ tracks an index of 25 to 45 exchange-listed companies that derive at least 50% of their revenues and/or assets from mining, exploration, development, and production of copper. The index also includes companies that have or expect to have a significant portion of their business operations related to copper. Aside from the usual market cap and liquidity requirements, individual securities are also screened using a review of industry publications, sell side research, and fundamental research, as well as meetings with management. COPJ aims to capture exposure to mid-, small-, and micro cap securities from US and foreign issuers, and even those in emerging and frontier market countries. Securities are free float market cap weighted, with a cap of 4.75% per issuer. Reconstitution and rebalancing of the portfolio is done on a semi-annual basis in June and December.