有这几个option

1. Best for Broad Exposure: Global X Copper Miners ETF (COPX)

COPX is the oldest and largest copper miner ETF. It is widely considered the industry standard for those who want a diversified basket of mining stocks.

• Expense Ratio: 0.65%

• Performance (2025): Surged approximately 95% in 2025 due to the copper boom.

• Why buy: It offers high liquidity and covers about 40 global mining companies (e.g., Freeport-McMoRan, Ivanhoe Mines).

2. Best for Low Cost: iShares Copper and Metals Mining ETF (ICOP)

If you are sensitive to management fees, ICOP is often the most cost-efficient way to play the sector.

• Expense Ratio: 0.47% (lower than most competitors)

• Performance (2025): Up roughly 80% year-to-date in late 2025.

• Why buy: It tracks the STOXX Global Copper and Metals Mining Index. It is slightly more diversified across metals but remains heavily weighted toward copper producers like BHP and Rio Tinto.

3. Best for Pure Copper Price: United States Copper Index Fund (CPER)

If you don't want the risk associated with mining companies (like labor strikes or operational costs) and just want to track the price of the metal, CPER is the primary "pure-play" choice.

• Expense Ratio: 0.97% – 1.04%

• Performance (2025): Gained about 35-38% in 2025.

• Why buy: It uses copper futures contracts rather than stocks. Note that because it deals with futures, it may issue a Schedule K-1 for taxes.

4. Best for High Growth/Risk: Sprott Junior Copper Miners ETF (COPJ)

For investors looking for higher potential returns (and higher volatility), COPJ focuses on "junior" miners—smaller companies focused on exploration and development.

• Expense Ratio: 0.75%

• Performance (2025): Outperformed most other copper ETFs in 2025, with returns exceeding 120% during peak rally periods.

• Why buy: Junior miners have more "leverage" to a discovery or a massive price spike in copper, though they carry higher risk of failure.