Freeport-McMoRan Inc. (NYSE:FCX) is entering a critical period as rising copper prices and higher production collide with tariff uncertainty, rising project costs, and execution risks. Goldman Sachs reiterated its Buy rating on September 10, calling FCX’s recent selloff overdone after a Reuters indicated that the White House had yet to decide whether to impose refined copper tariffs.
Goldman views the recent weakness as a potential buying opportunity, even as policymakers balance efforts to strengthen U.S. mining with concerns that tariffs could raise costs for manufacturers. The stock was down 5% in September through September 21.
We recently looked at how higher copper prices were supporting FCX even as production lagged. Now the question is whether rising output can turn that leverage into stronger cash flow.

Bull Case: Tight Copper Markets Could Amplify FCX’s Production Growth
The strongest argument for Freeport-McMoRan Inc. is the combination of higher copper prices and rising production. Copper reached $14,745 per ton on September 22, as Shanghai inventories fell to 43,900 tons, their lowest level since 2023. Chinese buying ahead of holidays, refinery maintenance plans, and tight inventories outside the U.S. are keeping the physical market firm.
That matters because FCX has substantial earnings leverage to copper. Management estimates that every $0.10 per pound change in copper prices could affect annual EBITDA by roughly $390 million in 2027 and 2028. At $5 copper, FCX estimates about $13 billion of annual EBITDA, versus roughly $20 billion at $7.
The volume side is also improving. Freeport-McMoRan Inc. expects second-half 2026 copper sales to exceed the first half by more than 20%, followed by another increase of more than 20% in 2027. Grasberg production rates more than doubled during the second quarter, while Morenci operated at rates 30% above its five-year average. Management is also targeting 300 million pounds of annualized copper production from its leach initiative by year-end, with a longer-term path toward 800 million pounds.
U.S. tariff policy adds another potential catalyst. The company prices all U.S. sales on COMEX, meaning a tariff-driven U.S. copper premium could lift realized prices. Tariff expectations have already pulled copper into the U.S., tightening markets elsewhere.
Bear Case: Costs and Capital Spending Could Dilute the Upside
The main risk is that higher copper prices do not translate fully into higher free cash flow. Freeport-McMoRan Inc.’s $2.50-per-pound U.S. cost target for 2027 is currently unattainable under prevailing energy, sulfur and acid prices, with U.S. costs closer to $3.00. Meanwhile, the preliminary cost of the Bagdad expansion has risen to about $4.5 billion, roughly 30% above its 2023 estimate.
Management still says Bagdad works at $4 copper, but the higher capital requirement raises the investment hurdle. Management also expects 2027 capital spending of about $4.8 billion, $300 million above its April estimate.
Grasberg provides another execution test. The ramp is progressing, but material-handling upgrades and wet/dry draw-point issues remain. The operating-rights extension is also still pending, although FCX expects to complete the process this year.
Tariff uncertainty remains another swing factor. A U.S. premium could benefit FCX’s domestic sales, but changes in trade flows or higher downstream costs could affect the broader copper market. With no final decision yet, the benefit cannot be treated as certain.
Hedge Funds, Valuation, and Short Interest
Hedge fund ownership increased from 82 to 92 holders in Q2. Fisher increased its stake 3% to 66.92 million shares, while AQR raised its position 35% to 11.93 million. Millennium cut its stake 10% to 11.45 million, and D.E. Shaw reduced its position 42% to 5.33 million. Crake’s 9.28 million-share position was unchanged.
Freeport-McMoRan Inc. trades at a forward P/E of 18.59, below Southern Copper’s 28.09. Short interest rose to 30.69 million shares as of August 31 from 27.79 million a month earlier, representing 2.15% of the float, versus 10.67% for Southern Copper.
Together, these metrics indicate that investors are positioning around the same central question: how much of FCX’s copper-driven earnings growth will survive higher costs and capital requirements.
The Real Test
FCX’s outlook ultimately depends on whether copper prices remain strong while Grasberg and U.S. production ramp as planned. The current copper environment provides substantial earnings leverage, but investors still need to watch costs, capital spending and execution closely. Tariff policy could add to U.S. realized prices, but it could also change global copper flows. The next test is whether FCX can convert its stronger copper price and production outlook into durable cash flow. For now, copper tightness appears capable of offsetting higher costs, but durable upside depends on FCX converting stronger prices and production into cash flow.
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