The fund is the first ETF option for a North American pure-play copper mining exposure in the Canadian equity space. The fund gets this exposure by tracking a market cap-weighted index of equities listed on the New York Stock Exchange, the NASDAQ, the NYSE American, the TSX, and the TSX Venture Exchange. Eligible securities must be classified by FactSet Revere Business Industry Classifications System (RBICS) as Pure-play or Diversified (i.e., copper is present in their business description). The index provides a maximum weight of 10% to pure-play companies and up to 5% to diversified companies. The final portfolio rebalances semi-annually and usually holds 20 constituents.