Sprott Copper Miners ETF ( $COPP) vs Global X Copper Miners ETF ( $COPX): Key Differences for Investors Sprott Copper Miners ETF (COPP) offers pure-play exposure to copper miners plus an allocation to physical copper, distinguishing it from the equity-only focus of Global X Copper Miners ETF (COPX). Both ETFs track copper mining indices with similar expense ratios (COPP at 0.66% and COPX at 0.65%), but COPX provides broader global diversification through approximately 40 holdings compared to COPP’s more concentrated selection. COPP includes physical copper holdings, adding a direct commodity component absent in COPX’s equity-based strategy.