Metals and mining margins are elevated; a pullback would be closer to the ideal entry point

Overview

This report revisits Bernstein's long-term "reversion master" model, using commodity cost curves, historical EBITDA/EBIT margins, ROCE, and mining equity valuation multiples to judge the margin of safety in global metals and mining. The backdrop is a market repricing of the Fed policy path and a decline in risk appetite, putting varying degrees of pressure on commodities such as gold, copper, aluminum, nickel, and iron ore. The overall conclusion is cautious: most metals and mining assets remain above long-term mid-cycle profitability levels, so current prices are not cheap, but further pullbacks could offer better long-term entry points.

Core views

The core views are: first, the long-term floor for commodity prices is usually determined by marginal supply costs, and the 90th percentile C1 cash cost is an important reference for judging the recession-scenario price floor; second, most commodities are still earning above historical averages, especially base metals such as aluminum and copper, indicating the industry is in an expensive zone; third, although copper has sizable theoretical downside, the probability of it falling below $10,000/t for long and staying there is relatively low, supported by electrification demand, insufficient supply growth, and high capital intensity; fourth, gold should not be analyzed through simple cost-curve mean reversion because it behaves more like a macro asset driven by real rates, central bank reserves, and financial demand; fifth, nickel appears to have upside versus its long-term implied price, but Indonesia's high output weakens the logic of supply elasticity repair.

Analysis framework

The report uses a combination of top-down and bottom-up approaches: it first explains the market environment through macro rate expectations and commodity price pullbacks, then uses each commodity's cost curve to define the recession price floor, uses a balanced risk-reward scenario to identify more reasonable entry prices, and finally transmits commodity price assumptions into mining equities' EBITDA, EV/EBITDA multiples, and potential share price scenarios. At the stock level, it also references trough valuation multiples from three downcycles in 2008-2009, 2015-2016, and 2020, and adjusts EV/EBITDA on the trough date.

Methodology notes

• Cost Curve90th Percentile C1 Cash Cost

  Commodity Price Floor

  The report argues that the bottom in most metal prices is determined by the cost of marginal mines or smelters; when prices fall into the cost curve, marginal capacity turns loss-making and exits, thereby supporting prices.

• Scenario AnalysisRecession Scenario

  Extreme Downside Scenario

  The recession scenario assumes commodity prices fall to the 90th percentile cash cost or slightly below; the report also mentions applying a 10%-20% discount to the 90th percentile C1 cash cost for stress testing.

• Scenario AnalysisBalanced Risk-Reward Scenario

  A More Realistic Entry Framework

  This scenario acknowledges that the probability of some commodities falling to the 90th percentile cash cost is low, and therefore uses more balanced price assumptions to find levels suitable for gradual position building, such as copper at about $10,000/t.

• Historical Mean ReversionLong-term EBITDA/EBIT/ROCE Model

  Mid-cycle Margin

  The report uses commodity and mining profitability data going back to 1985 to compare current margins with long-term averages, in order to judge whether the industry is earning excess profits and what future long-term returns may be.

• Equity ValuationDowncycle EV/EBITDA Multiple Anchor

  Trough Valuation for Mining Stocks

  The report references the three downcycles of 2008-2009, 2015-2016, and 2020, observes EV/EBITDA on the dates of lowest share prices, and raises the multiples because earnings expectations usually bottom later.

• Asset DifferentiationExclusion of Gold's Macro Characteristics

  Gold Is Not Priced by Ordinary Mining Cost Curves

  The report argues that gold behaves more like a monetary and macro asset, influenced by real rates, central bank reserves, and financial demand, with above-ground stock far exceeding annual mine supply, and therefore it is excluded from ordinary mining cost-curve mean reversion calculations.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• Global mining equities

  High-beta equity assets to commodity prices

  Strengths

  Operating leverage is relatively high, so if commodity prices recover from low levels, equities can show substantial upside elasticity.

  Weaknesses

  Current industry EBITDA margins are above the long-term mid-cycle level, so both valuations and earnings face mean reversion risk.

  Comparison

  The report argues investors should focus more on commodity-price entry points rather than mechanically relying on stock-price bottoms.

  Risks

  If a true recession occurs, most covered mining stocks could see 50%-75% downside.

• Copper

  The report's core base metal and methodological example

  Strengths

  Electrification demand, insufficient supply growth, and high capital intensity provide long-term support.

  Weaknesses

  Current copper margins are already near historical highs, so it is not cheap in the short term.

  Comparison

  Although there is large theoretical downside based on the 90th percentile cost, the report believes around $10,000/t is more consistent with balanced risk and reward.

  Risks

  A severe recession, demand destruction, or a continued decline in risk appetite could cause prices to break support in the short term.

• Gold, ABX, NEM

  Precious metals and gold mining equity exposure

  Strengths

  Gold is supported more by macro and monetary characteristics and is not fully constrained by mining supply-demand cost curves.

  Weaknesses

  Since the start of the year, NEM's pullback has broadly tracked gold prices, while ABX has lagged gold by about 10%.

  Comparison

  The report excludes gold from ordinary mining cost-curve calculations because above-ground stock and financial demand are more important.

  Risks

  Real rates, central bank reserve demand, project timelines, and capex changes will affect gold and related mining equity performance.

• Nickel

  A base metal dominated by Indonesian supply

  Strengths

  Relative to its implied price from long-term EBITDA margins, nickel is one of the few commodities that still appears to have upside.

  Weaknesses

  Indonesia maintains high production and has raised mine quotas, so supply elasticity is not tightening under the traditional logic.

  Comparison

  Unlike most commodities that are above long-term margins, nickel and iron ore are below long-term EBITDA margins.

  Risks

  If Indonesian supply continues to increase, prices may stay depressed for a long time, causing the mean reversion logic to fail.

• Iron ore

  An important source of bulk raw materials and mining profits

  Strengths

  Iron ore has relatively high long-term EBITDA margins, and the industry's oligopolistic structure provides a favorable profit environment.

  Weaknesses

  New supply and project ramp-ups create oversupply risk.

  Comparison

  The report's long-term iron ore price assumption is below $95/t CFR China.

  Risks

  Supply additions from Simandou, Onslow, Western Range, Iron Bridge, and others may pressure prices.

• Aluminum

  A representative base metal and smelting cost curve

  Strengths

  After a price pullback, future entry points may improve.

  Weaknesses

  The aluminum cost curve is relatively flat, smelting is more midstream in nature, and it has the lowest long-term EBITDA margin.

  Comparison

  The report says base metals such as aluminum and copper are currently earning significantly above historical averages.

  Risks

  Smelting capacity closures are not flexible enough, so cost-curve support is weaker than for mine-type commodities.

• Thermal coal and metallurgical coal

  Part of the energy and commodity complex

  Strengths

  Thermal coal has recently been supported by geopolitical factors, while metallurgical coal has been supported by supply disruptions in Australia and China.

  Weaknesses

  The report points out that even coal is in an excess-profit state relative to historical averages.

  Comparison

  Thermal coal and copper have the largest theoretical downside relative to the 90th percentile cost.

  Risks

  Demand cycles, policy constraints, supply recovery, and recession scenarios could pressure prices.

Key data

• Change in Rate ExpectationsFrom expecting three rate cuts to pricing in one rate hike in 2026The decline in market risk appetite is an important backdrop to this round of pullbacks in commodities and mining equities.
• Share Price Downside in Recession ScenarioAbout 50%-75% downside for most covered companiesHigh operating leverage amplifies mining equity volatility under commodity price pressure.
• Downside to 90th Percentile CostTheoretical downside of more than 50% for thermal coal and copperThe report also emphasizes that the probability of copper falling to the extreme cost floor is very low.
• Balanced Risk-Reward Price for CopperAbout $10,000/tThe report believes there should be strong support around this level, and it is unlikely to remain materially below it for long.
• Copper C1 Cash Cost Plus Sustaining CapexAbout $6,700/tAn estimate of the 90th percentile C1 cash cost plus sustaining capital expenditure.
• Capital Intensity of Copper Brownfield ProjectsMost are above $15,000/t; Freeport Bagdad expansion about $35,000/tHigh capital intensity supports the long-term supply constraint thesis for copper.
• Long-term Industry ROCE14.9%The report says the long-term return on capital employed for the mining industry is 14.9%.
• Long-term Industry MarginsEBITDA margin 33%; EBIT margin 31%Current industry margins are significantly above these long-term averages.
• Current Position of Industry MarginsClose to 1 standard deviation above the long-term mid-cycle levelThis indicates the sector as a whole is still in an excess-profit state.
• Long-term Iron Ore Price AssumptionBelow $95/t CFR ChinaAffected by supply increases from Simandou, Onslow, Western Range, Iron Bridge, and others.
• Change in Indonesian Nickel Ore QuotasFrom 260Mt to 360MtRising Indonesian supply increases pressure on nickel prices and nickel margins.
• Rating ConclusionABX, NEM, RIO are Outperform; AAL, ANTO, BHP, BOL, FCX, GLEN, VALE are Market-PerformThe report maintains its existing ratings.

Impact & implications

The investment implication is not to simply chase the mining sector during the current phase of high cyclical margins, but instead to treat commodity prices themselves as the more important entry signal. If commodity prices fall back toward balanced risk-reward levels merely because of macro risk-aversion, investors may consider initiating small positions and adding on further weakness; if a true recession drives prices near the cost-curve floor, high-quality mining stocks could present highly attractive long-term entry points. In asset selection, copper still has structural support, gold should be assessed through a macro lens, while nickel and iron ore are more constrained by supply expansion.

Risks

• Fed rate hike expectations continue to strengthen, further weighing on risk appetite and commodity valuations.
• A true recession could push commodity prices down to the 90th percentile cash cost or below, with mining equities suffering larger declines due to operating leverage.
• If copper's structural support is weakened by demand destruction or a significant slowdown in global growth, support at $10,000/t could fail.
• Sustained high Indonesian nickel supply could keep nickel prices below levels implied by traditional mean reversion frameworks for a long time.
• Rising iron ore supply from Simandou, Onslow, Western Range, Iron Bridge, and others could depress long-term iron ore prices.
• Gold is influenced by real rates, the U.S. dollar, central bank reserves, and financial demand, and cannot be fully explained by ordinary mining cost curves.
• Equity valuation scenarios rely on multiples from historical downcycles; if this cycle has a different structure, the valuation anchors may prove inaccurate.
• Non-commodity factors such as project delays, rising capex, or mine accidents at individual companies could cause share prices to deviate from the scenario model.

What to watch

• Changes in the Fed's 2026 rate expectations and global risk appetite.
• Whether copper prices approach and hold the balanced risk-reward range of about $10,000/t.
• The position of each metal relative to the 90th percentile C1 cash cost and C1 cash cost plus sustaining capex.
• Whether global mining industry EBITDA margins fall back from current highs toward the long-term mid-cycle level.
• Indonesian nickel ore quotas, production, and supply contraction under a low-price environment.
• Ramp-up progress at iron ore projects such as Simandou, Onslow, Western Range, and Iron Bridge.
• Changes in gold real rates, central bank purchases, and financial demand.
• ABX's Reko Diq project timeline and capex revisions, as well as NEM's performance relative to gold prices.