Copper Miners: Broad Selling Pressure and Deteriorating Market Breadth

1. Executive summary

Copper-related securities ended the week through October 16 under broad selling pressure. Of 103 instruments, 91 declined, 11 advanced and one was unchanged. The median weekly return fell to −6.73%, from −0.83% the preceding week. Only 38.24% of securities with valid MA200 data remained above their 200-session moving average, down from 51.96%.

The decline extended beyond short-term performance. Median drawdown from 52-week closing highs deepened to −32.48%, while the share more than 30% below those highs rose to 51.49%. At the same time, 20-session directional volume balance deteriorated. The combination describes a weakening internal structure, not merely an isolated setback among a handful of large constituents.

2. Weekly participation: selling becomes widespread

Weekly advances fell from 35 to 11 instruments, while decliners increased from 62 to 91. The mean weekly return was −6.72%, close to the median, consistent with weakness across a broad part of the universe rather than one extreme outlier dominating the average.

Even companies with positive three-month or year-to-date returns suffered notable weekly declines. A strong longer-term ranking should therefore not be mistaken for immunity from a broad correction.

3. Long-term breadth breaks lower

The share trading above MA200 fell from 51.96% to 38.24% in one week (53/102 to 39/102 valid observations). On a common sample of 101 securities, four-week breadth declined by 18.81 percentage points, from 57.43% to 38.61%.

Fewer than four in ten instruments now trade above their long-term trend reference. The four-week common-sample comparison is particularly important in an expanded universe: it measures the change among securities with observations at both endpoints.

4. Drawdowns reveal deeper structural damage

The median 52-week drawdown widened from −27.73% to −32.48%. Among 101 securities with valid 52-week observations, 52 (51.49%) are more than 30% below their closing highs, compared with 44 (43.56%) one week earlier. The proportion more than 40% below highs rose from 24.75% to 32.67%.

This distinguishes a loss of momentum from a more developed correction. It does not by itself establish that the entire copper cycle has reversed, but it shows that many individual securities require substantial recovery simply to revisit recent highs.

5. Volume: more activity, weaker directional balance

Median five-session relative volume increased from 0.78× to 0.91×, still below its reference level. Yet the median 20-session signed volume balance worsened from −10.41% to −13.32%, and the share of securities with positive signed balance fell from 37.86% to 18.45%.

Of the securities combining at least 1.5× relative volume with a directional five-session move, eight declined and only one advanced. This is evidence of greater activity accompanying declines, not proof of institutional selling or a measure of net capital flows.

For a durable improvement, we would want stronger breadth, less negative signed volume and more widespread high-volume advances.

6. Leaders, laggards and the difference between horizons

Sandfire Resources America (SFR.V) led weekly returns at +14.89%, but its three-month performance remained −27.03%. Fitzroy Minerals (FTZ.V) gained 10.42% for the week and 37.66% over three months. Intrepid Metals (INTR.V) advanced 8.43% weekly and 42.86% over three months; Pecoy Copper (PCU.V) rose 6.56% and 43.38% over the same horizons.

At the weak end, Northern Dynasty Minerals (NDM.TO) lost 21.25%, Caravel Minerals (CVV.AX) fell 18.87%, and Midnight Sun Mining (MMA.V) declined 17.09%. These examples show why weekly rank, global rank and medium-term returns must be read together. A strong historical ranking is not a standalone buy signal.

7. The 22 additions: better coverage, careful comparisons

The latest research dataset covers 103 instruments, up from the 81 listed in the previous published copper study. Broader coverage improves the current cross-sectional view, but changes in membership can affect aggregate historical comparisons. The supplied files do not unambiguously identify the 22 additions, so this article does not attribute specific performance effects to individual new members.

The four-week MA200 comparison uses 101 instruments with valid observations at both endpoints. Other denominators are stated where relevant. The universe includes copper-related securities with different operating profiles and geographic exposures, as well as sector ETFs; it should not be interpreted as a homogeneous portfolio of pure-play copper producers.

Outlook. Copper-sector breadth, drawdowns and signed volume are pointing in the same unfavorable direction. A rebound in a few names would not alone constitute a broad recovery. Confirmation would require improving MA200 participation, shallower drawdowns and more convincing positive volume participation. These are observations and conditions to monitor, not a prediction of a particular next price move.

8. Complete copper ranking — 103 securities

Weekly rank, global rank, last close and returns over one week, four weeks, three months and year to date. Search by ticker or company and sort on either device.

Read our public methodology and limitations and the previous copper study. Data through 16 October 2026. Independent research for information only.