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• The U.S. copper index fund (CPER) is up 28% over the past year, outpacing the S&P 500’s 15.5% gain, has a 1.06% expense ratio, and fell 19% when refined copper products were exempted from tariffs.

• Copper faces a structural shortfall of more than 10 million metric tons by 2040 as energy demand increases by 50% while global mine production rises by 2030.

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CPER is up nearly 28% over the past year, outpacing the S&P 500’s 15.5% gain over the same period, and the structural forces behind this move are only increasing. US Copper Index Fund (NYSEARCA:CPER) is one way that U.S. investors can gain access to copper price movements through a futures-based ETF without buying the contracts directly. Understanding what drives the CPER from here requires looking at the price chart.

The fund tracks NYMEX and COMEX copper futures contracts and has an expense ratio of 1.06%. It does not contain physical copper, and this difference is very important.

The biggest macro driver for CPER over the next 12 months is the increase in construction demand linked to electronic and AI infrastructure. The capital of the venture is called Chamat Palipitiya Copper “The Best Artificial Intelligence Investments for 2026” And prophesied to go “Totally parabolic.” On Reddit, Copper ETF vs Physical Copper? The 37 comments on r/investment discussing the role of copper in AI infrastructure investment reflect the community’s broad interest in the space.

Read: The analyst who called NVIDIA in 2010 Just naming his top 10 AI stocks

S&P Global projects a copper deficit of more than 10 million metric tons by 2040 as energy demand rises by nearly 50%, while global mine production is expected to peak until 2030 and then decline.

On the supply side, Codelco, the world’s largest copper producer, has already cut its output forecasts due to declining ore grades and operational disruptions. These are not temporary obstacles. They represent the structural solidity that gives real teeth to the story of long-term demand.

A visible risk is tariff policy. When a 50% copper tariff was announced in mid-2025, the CPER rose to a record high, then fell nearly 19% when refined copper was later exempted. Such waves can overturn any fundamental article in a short period of time.

Because CPER contains futures instead of physical copper, it suffers from structural drag called contingencies. When futures markets are in contango, the price of copper for future delivery is higher than today’s price, forcing the fund to sell expiring contracts and buy more expensive each month. The cost of this role is regressive relative to copper prices, meaning CPER can reduce the commodities it tracks even when copper prices rise. The CME Group copper futures curve provides a clear picture of the current market structure.

If the copper market reverses, where near-term contracts are trading above longer-dated ones, CPER will actually benefit from a rollover, turning this structural headwind into a tailwind.

If the construction supply deficit accelerates more than the most skeptical analyst models predict and moves to the back of the future curve, CPER returns will likely reflect these gains. The reverse is equally true: a rollback of tariff policy or a dampening of demand from China could push prices down sharply, and a canto drag would exacerbate those losses.

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