The 590,000-Ton Secret: Why The US Built A 30-Year Copper Fortress

Surbhi Jain

Sun, February 15, 2026 at 8:01 AM GMT+9 3 min read

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The U.S. isn’t discovering copper — it’s stockpiling it.

Quietly, American warehouses have turned into a modern-day metal fortress, with 590,000 short tons of copper sitting in COMEX-approved storage — the highest level in more than 30 years.

This isn’t a mining miracle. It’s a trade-war chess move.

A 300% Surge — Before The Tariff Hammer Falls

Copper inventories have exploded nearly 300% in just 12 months, now exceeding the combined stocks of the LME and Shanghai exchanges, according to CME data and Goldman Sachs.

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The reason is simple: traders are front-running potential U.S. tariffs of 15%–25% on refined copper by rushing metal across the border today to avoid taxes tomorrow. The result is a local glut in America — even as the rest of the world tightens.

Why This ‘Fortress’ May Be Temporary

This pile looks big, but it’s a mirage in a structurally tight market.

Goldman warns that once tariff uncertainty clears (likely mid-2026), much of this metal could flow back out, creating a short-term price dip.

In other words, the fortress could quickly become a fire sale.

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Chamath’s Parabolic Bet Vs. The Stockpile

Chamath Palihapitiya calls copper the top trade of 2026, arguing that AI alone could demand 50,000 tons per data center, while mine supply takes 20-plus years to scale.

To him, today’s inventory is “pennies” next to a projected 130% jump in data-center power demand by 2030.

Tariffs, he says, could turn copper into a national-security asset — and prices “absolutely parabolic.”

Traders tracking this theme are increasingly using copper and copper-miner ETFs — such as the **United States Copper Index Fund **(NYSE:CPER), the iPath Series B Bloomberg Copper Subindex ETN (JJC) and the Global X Copper Miners ETF (NYSE:COPX) — as a liquid way to express the bet without owning physical metal.

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What It Means For Investors

Short term: U.S. has a glut created by fear of tariffs.
Long term: World faces a famine driven by AI and electrification.

If you trade copper, the fortress is a warning.

If you invest like Chamath, it’s just a speed bump on the road to a structural shortage.

La historia continúa  

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This article The 590,000-Ton Secret: Why The US Built A 30-Year Copper Fortress originally appeared on Benzinga.com

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