Copper prices rose again on Monday, October 5, 2026. Benchmark three-month metal on the London Metal Exchange was up 0.6% at $14,346 a metric ton in the London morning. That is about $6.51 a pound. It is also a bounce, not a breakout. Last week the same contract fell 2.5%. On September 10 it had printed a record at $14,875.
This piece has one idea. A higher price benefits a copper miner only on the pounds it sells, after the cost of those pounds. October can lift a quote. It cannot mill ore that is not moving, and it cannot freeze a cost that is rising for other reasons. The three names below are not a buy list. They are three files in which that test looks different.
Nothing here is advice to buy or sell any security. Copper stocks can fall even when the metal rises. A low reported cost can depend on by-product prices that will not sit still. A mine can miss a guide. Past margins are not a promise.
What rose, and what did not
Monday’s gain was the second straight session. Sandeep Daga, head of research at Metal Intelligence Centre, tied it to equities and to fading odds of a Federal Reserve hike. After a weak U.S. jobs report, CME FedWatch put the chance of an October hike near 18%, down from about 71% a week earlier. Higher rates can cool the economy. Copper is tied to building, grids, factories, and machines. A cooler economy is a softer bid. A lower chance of a hike is a reason for a bounce. It is not a reason the bounce lasts.
The dollar did not help. A firmer dollar makes a dollar-priced metal dearer for everyone else. Copper rose anyway. That split matters. When two forces pull apart and the price still ticks up, the tick is fragile. Last week showed the other side. From September 28 to October 2, LME copper’s last price fell about $364 a ton, to $14,258.50. Aluminum, zinc, nickel, and lead fell harder. Higher bond yields, a firmer dollar, energy-cost worry, and China’s Golden Week holiday sat on the complex together. A Monday rebound of less than 1% does not repeal that week.
Put the record next to the rebound and the size is obvious. From $14,875 on September 10 to $14,346 on October 5 is a drop of about 3.6%, even after Monday’s rise. Copper prices are higher than they were for most of the past two years. They are not, this morning, higher than they were a month ago. “Rising” in the headline is true of the session. It is a poor description of the month.
Nearby metal is tight even so. The cash contract traded at a premium of nearly $63 a ton over the three-month price on Monday, up from $53.50 on Friday. That premium is backwardation. It means prompt copper is worth more than copper for later delivery. At the end of last week, LME stocks were 248,650 metric tons, down 2,850 on the week. Cancelled warrants, metal already spoken for, were 114,000 tons, about 46% of the stock. Available warrants had risen, and the premium had eased from $106 earlier in the week. Tight, not empty. A premium can vanish in a few sessions. It is still the opposite of a glut in the nearby market.
Chile’s August output fell 13% from a year earlier, to 369,500 tons, on the LME’s weekly review. Shanghai exchange stocks fell about 18% in the last weekly print before the holiday, to below 39,000 tons. Daga said Chinese stocks are thin and smelter maintenance is lined up. He also said domestic demand looked weak. Both sentences can be true. Thin stocks are a copper supply fact. Weak demand is a copper demand fact. A price that rises on the first and ignores the second is a trade, not a balance.
A copper price forecast that sits under the tape
Here is the part a rising-price story skips. Several published forecasts for 2026 are below the price that just ticked up.
On October 1, Bank of America raised its long-term copper price forecast by 20%, to $12,000 a ton. That is about $5.44 a pound in 2026 dollars, on the bank’s own conversion. The bank cited supply trouble as the reason for the raise. It also named risks the other way: an energy-driven hit to demand, and a pause in spending on data centers. Twelve thousand dollars is a higher long-term number than the bank had. It is still about $2,300 below Monday’s print. A raised forecast can be a cut against the market you are looking at.
In April, Goldman Sachs kept an average of $12,650 a ton for 2026 and a surplus estimate of 490,000 tons. That average is also under the tape. The bank’s worry then was not a shortage. It was supply risk from sulphuric acid if the Strait of Hormuz stayed disrupted, set against weaker demand if growth slowed. A surplus forecast and a mine-disruption story can live in the same year. They should not be blended into one word.
A September 29 compilation from MINING.COM, with the metal then near $14,539, lined up more desks. Several of those targets sat under the spot price or only slightly above it. Morgan Stanley was shown at $14,250 for the fourth quarter. J.P. Morgan’s 2026 average was shown near $13,885. Goldman’s end-2026 figure in that list was $13,735. Cochilco was at $12,235. UBS was at $15,500 for mid-2027. Citigroup was at $15,000 as a three-month target. Deutsche Bank was shown at $22,050 for the second quarter of 2027. Read the spread, not the highest cell. When the market is above many 2026 averages, “copper prices are rising” is not the same sentence as “the forecasts say buy the rise.” Some forecasts say the rise has already gone past the year’s mean.
That is the copper price outlook a holder can actually use. The nearby market is tight. The annual models do not all agree the tightness is a deficit. The long-term number just raised by a large bank is still a discount to today. A copper price forecast 2026 that quotes only the record, or only the $22,000 cell, is editing. A copper price forecast that admits the conflict is the one that matches the tape.
Shortage, supply, and a holiday
People reach for copper shortage because the premium is positive, Chile stumbled in August, and one giant mine is still not whole. The reach is understandable. It is not yet a proof.
Copper supply is a pile of mines, not a slogan. Grasberg, in Indonesia, is milling at about two-thirds of the rate it had before a mud rush in September 2025. Escondida, in Chile, is the world’s largest copper mine, and it belongs to BHP, not to the three companies in this piece. On the weekend into October 5, reports said Escondida’s supervisors’ union rejected a final offer. Ninety-five percent of participating members backed strike action after mediation. A strike vote is not a strike. It is a risk that sits on the same country whose August output already fell 13%. If the vote becomes a stoppage, the price can jump without any of the three miners pouring an extra pound.
Panama is the mirror image. A government commission has recommended talks on reopening Cobre Panamá, on terms meant to fund an eventual close. A closed mine that might reopen is potential supply. It is not metal in a warehouse. Treat it as a headline, not as a tonnage, until a shovel moves.
Copper demand is the other half, and October is a bad month to pretend it is settled. China takes about half of the world’s copper. Shanghai futures are shut for Golden Week, October 1 through October 7. London is setting the price without the biggest buyer’s day session. Daga’s line, that domestic demand looked weak even with thin stocks, is the caution that belongs next to every tight-stock chart this week. Smelter maintenance can lift a concentrate market. It does not prove a factory ordered more wire.
Data centers and power lines are the structural bid people add when the weekly chart looks messy. Bank of America put a pause in that spending on its list of risks. If the spending slows, a story built on a permanent deficit loses a chapter. If it does not, the chapter stays. October will not decide it. A holiday week and a Fed odds swing will not either.
Why are copper mining stocks rising?
Why are copper mining stocks rising? On the days they do, the shortest honest answer is that the metal rose and the shares followed, sometimes by more than the metal. On October 2, with futures broadly flat after a down week, one market note had Freeport-McMoRan up 3.98% at $72.04 and Southern Copper up 3.17% at $205.54. Those prints are that day’s closes, not a claim about October 5. They show the gear. A miner’s equity is a leveraged opinion on the pound, plus a bet on volume, cost, and politics. It can rise when the metal is only steady, if traders are leaning into the next session. It can fall when the metal rises, if the company’s own update is worse than the price.
The gear is not a reason. Freeport’s October 2 release said the average realized copper price for the third quarter should exceed $6.50 a pound. That is a direct line from the metal to revenue, on pounds the company expects to sell. It is also a line that does not repair a mill. Shares can celebrate $6.50 and still be attached to a complex running at 67% of its old rate. The celebration and the rate are both real. Only one of them is cash.
A second reason shares rise is mechanical. Copper mining companies are scarce large vehicles. When a generalist fund wants “copper” by the close, it buys the liquid names. The purchase does not inspect a grade. It inspects a ticker. That is why a list of best copper stocks often tracks the day’s volume more than the quarter’s shipments. Volume is not a reserve.
A third reason is the cost gap, and it is the only one that survives a bad week in the metal. If you sell a pound at $6.50 and your net cash cost is near $2, the gap is wide. If your net cash cost is near zero because molybdenum and silver paid the bill, the gap is the whole price, and it is borrowed from those other metals. Investors who stop at “copper is up” never see which gap they own. That is how copper mining stocks rise for a reason that will not be there when the by-product price turns.
Freeport: a price above $6.50, a mill at 67%
Freeport-McMoRan is the clearest October file because the company filed it. On October 2 it said third-quarter consolidated copper production was about 830 million pounds, in line with its own hopes. Copper sales are expected near 750 million pounds, also in line with the July estimate. The gap between 830 and 750 is not a footnote. Sales are what get the price. Pounds produced and not yet sold do not.
Gold makes the gap sharper. The mines produced about 230,000 ounces of gold in the quarter. Sales are expected near 100,000 ounces. About 60,000 ounces of refined gold were pushed into the fourth quarter. Production did not change. The timing did. Unit net cash costs, net of by-product credits and excluding idle-facility and restoration costs at Grasberg, are expected about 5% above the July estimate of $2.00 a pound. The company said the increase is mainly those missing gold credits. Five percent above $2.00 is about $2.10. Against a realized copper price above $6.50, the spread on a sold pound is still more than $4. That is a wide spread. It is narrower than July’s sketch, because the gold was late.
Grasberg is why the volume is the real question. A mud rush on September 8, 2025, sent roughly 800,000 metric tons of wet material through the underground mine. Seven workers were killed. In the third quarter of 2026, mill throughput averaged about 140,000 metric tons of ore a day. That is about 67% of the rate before the incident. About 70,000 tons a day came from the Grasberg Block Cave itself. The company still expects about 80% of capacity by the middle of 2027, and something close to full capacity by the end of 2027. Upgrades on the haulage level are aimed at early 2027. A restart of Production Block 1S is aimed at mid-2027. The East Java smelter, which had been suspended, restarted in late August.
Read that against Monday’s 0.6% price rise. The rise, on a $6.51 pound, is about four cents. Four cents on 750 million pounds of expected quarterly sales is about $30 million before royalties, taxes, and the fact that not every pound gets the full move. That is real money. It is small next to the pounds Grasberg is not milling. A complex at 67% is missing about a third of its old throughput. No October quote replaces that third. The path back is a construction and a mining schedule, dated 2027.
The Americas did not have a clean quarter either. Freeport said U.S. operations ran below plan because of more frequent localized flooding, power outages, and strong winds. Slightly stronger international production offset that in the consolidated copper number. The offset is a company fact. It is also a reminder that “copper stocks” are a bundle of weather, grids, and pits, not a single exposure to the LME.
Could Freeport benefit in October? On pounds it sells above a net cost near $2.10, a higher price drops to the margin almost pound for pound. That is the benefit. The limit is the pounds. Sales near 750 million for the quarter were already the July plan. A rally after September 30 does not rewrite a quarter that has ended. It can help the fourth quarter, if it lasts, and if the deferred gold shows up so the credit returns. It cannot speed the block cave from 67% to 100% inside this month. Anyone who buys the share because copper prices are rising is buying the margin on a reduced mill, plus the hope that 2027 arrives on the slide.
Southern Copper: a nickel cost, and fewer pounds in Peru
Southern Copper’s second quarter shows the other kind of gap. Copper was 73% of sales. Production was 230,662 tons, down 3.5% from the second quarter of 2025. Peru fell 12%, on lower grades and recoveries at Toquepala and Cuajone. Mexico rose 3.2%, led by Buenavista, La Caridad, and related operations. For the half year, output was 461,206 tons, down 3.8%, again mostly Peru. The 2026 guide is 917,000 tons. The company said that is about 1% above its initial plan. On its own later slide, 2025 was 956,300 tons. A guide that beats an internal plan can still be a decline from last year. Both descriptions are accurate. Only the second one tells you the volume is down.
The cost line is the one that gets quoted, and it needs the qualifier. Operating cash cost per pound, net of by-product credits, was $0.05 in the second quarter. A year earlier it was $0.63. For the first half it was negative $0.03, against $0.70 in the first half of 2025. The company tied the drop to by-product credits, which rose more than 50% in the quarter and more than 60% in the half. Molybdenum was 11% of second-quarter sales. The molybdenum price averaged $29.44 a pound, against $20.57 a year earlier. Before those credits, operating cash cost was about $2.29 a pound in the quarter, a penny or two under the prior quarter, on the figures the company has put next to that history.
A nickel a pound is an extraordinary net cost. It is not a copper cost. It is a copper cost minus zinc, silver, and molybdenum. At a copper price near $6.50, almost the entire price is margin only while those credits hold. If molybdenum gives back the $9 a pound it gained, the net cost rises even if the copper quote does not fall. That is the trap in calling this one of the best copper mining stocks 2026 on a cost ranking. The ranking is a by-product ranking wearing a copper jersey.
The company’s own arithmetic at a flat $6 copper price, in a September presentation, sketched 917,000 tons, sales near $14.9 billion, and EBITDA near $9.5 billion. Monday’s price is above $6. A higher price on 917,000 tons is a large sensitivity. It is a sensitivity on a tonnage the company has already said will be lower than 2025, because grades in Peru are lower. Grades are not a headline. They are the rock. October’s LME print does not raise the grade at Toquepala.
Later tonnes are the long story, and they are not October tonnes. The company’s production chart steps down in 2026 and 2027 before a climb toward the next decade, as projects in Peru and Mexico are counted in. Projects slip. Permits slip. A chart is a plan. The plan does not cash a 0.6% Monday move. What can cash it is the copper Southern Copper sells this quarter, at a net cost that is only a nickel if the by-products keep paying.
Could this one benefit in October? Yes, on the pounds it ships, and more cleanly than a high-cost mine, as long as the credit stack holds. The benefit is not new metal. The 2026 book is a smaller book than 2025. A rising price on a smaller book can still lift earnings. It can also hide the smaller book inside a cheerful headline. The file says: watch Peru’s grades, watch molybdenum, and do not treat $0.05 as a law of nature.
Antofagasta: the guide went down while the price was high
Antofagasta is the file that breaks the simple story hardest. In the first half of 2026, copper production was 285,000 tons, down 9% from a year earlier. The second quarter was 142,000 tons. The drop was mainly Los Pelambres and Centinela, on lower grades, plus a timing item: about 7,000 tons sat in plant inventory after pipeline maintenance and was due to count in the second half. Sales lagged production. First-half sales were 267,800 tons.
Costs split in a way that matters more than the split at Southern Copper, because both directions are large. Net cash costs in the first half were $1.22 a pound, 8% lower than a year earlier. By-product credits and cost discipline did that. Cash costs before those credits were $2.85 a pound in the half, up 23%. In the second quarter alone they were $2.94, up 6% from the prior quarter. Diesel, sulphuric acid, other consumables, a labor settlement with supervisors at Centinela, and fewer tons all pushed the gross number. The net number fell. The mine did not get cheaper. The credits got larger, and the tons got scarcer, and the average moved in opposite ways depending on which line you read.
Then the guide moved. A July production report had kept 2026 copper output at 650,000 to 700,000 tons, and net cash cost at $1.15 to $1.35 a pound. It had lifted the pre-credit cost range to $2.40 to $2.60, because fuel and consumables were above January’s assumptions. On August 13, with half-year results, the production range was cut to 625,000 to 655,000 tons. Chief executive Iván Arriagada said earnings were strong anyway. EBITDA rose 27%. Operating cash flow rose 53%. The margin was 63%. Higher realized prices did a lot of that work. The company still pointed at Centinela and Los Pelambres growth projects, aimed at commissioning in 2027 and described as a path to about 30% more copper over time.
Hold the dates next to the copper price. The cut in the guide arrived in a year when the metal was near records, not in a bust. A high price did not stop grades, a pipeline outage, or acid and diesel from taking tons off the year. That is the whole argument of this piece, in one company. Copper producers do not “get” the LME print. They get the print on the tons they produce, minus a cost that can rise because the same world that wants copper also wants fuel and acid.
Could Antofagasta benefit in October? A higher price helps the tons it sells in a month when quarterly output is supposed to rise from the first half. The company has said production should step up as the year goes on. If that step happens, more pounds meet the price. If it does not, the August cut was the start of a pattern, not the end. The net cost near $1.22 is a cushion. The pre-credit cost near $2.85 is the number that tells you the cushion is partly a by-product story, again. Gold and molybdenum are in that credit. They are not copper.
Which copper stocks could benefit from higher copper prices?
Which copper stocks could benefit from higher copper prices? The useful answer is a test, not a podium.
First, does the company sell the pound this quarter, or only produce it later? Freeport expects to sell about 750 million pounds for a quarter it has already finished, and to realize more than $6.50. A further rise in October lands in the next quarter, not in that realized price. Southern Copper’s 2026 tons are guided at 917,000, below 2025. Antofagasta cut the year to 625,000–655,000. Benefit follows sales. Sales follow the mill, the grade, and the ship.
Second, what is the cost with the credits, and what is the cost without them? Freeport’s net cost near $2.10 already excludes idle and restoration charges and was lifted because gold sales slipped. Southern Copper’s $0.05 is almost entirely a credit story. Antofagasta’s $1.22 net sits beside a $2.85 gross. A copper investment that ranks these three by the lowest net cost is ranking molybdenum and gold as much as copper. That can be a fine business. It is a different business from “copper beta.”
Third, what can go wrong that the price cannot fix? At Freeport, the fix is time underground in Papua, plus U.S. weather and power. At Southern Copper, it is Peruvian grades. At Antofagasta, it is the same grades, plus acid, diesel, and a labor deal already in the cost. At the market level, an Escondida stoppage would lift the price for everyone and the volume for no one who does not own Escondida. A Panama reopening would do the opposite on price, slowly, if it happens. Neither event is an October earnings beat.
Fourth, is the price already above the forecast you are using as a crutch? If your copper price outlook is Bank of America’s new long-term $12,000, Monday’s $14,346 is not a gift the bank just handed you. It is a price above the gift. If your outlook is Citigroup’s $15,000 over three months, or UBS at $15,500 in 2027, you are betting the tape goes higher still, and these miners’ volumes have to be there to meet it. The shares do not collect a target. They collect a monthly average on a sales number.
Run the four questions and the headline changes. These three could benefit in October to the extent the price stays up and their October shipments are the ones already in the plan. They do not benefit because a list called them the best copper stocks. “Best” is a word the search bar likes. It is not a cost, a grade, or a mill rate.
Is copper a good investment in October 2026?
Is copper a good investment in October 2026? No single answer fits. A good investment is a size, a horizon, and a reason you can check. Copper can be a bet on grids and a bad bet on a week when China is on holiday and yields are high. It was both in the first days of this month. The metal fell 2.5% in a week and rose 0.6% on a Monday. Anyone who needed a smooth October picked the wrong metal.
Copper investing through the miners adds risks the metal does not have. You can be right on the LME and wrong on Grasberg’s ramp, on Toquepala’s grade, or on Centinela’s acid bill. You can be right on all three operations and wrong on the multiple, if the market decides $14,000 was enough and walks back toward a $12,000 model. The share then falls while the mine still prints cash. Cash and the share price are cousins. They are not the same person.
Size is the part October commentary skips. A 3% sleeve that swings with copper is a position. A 30% sleeve is a different life, because this metal moves in dollars per ton that look small on a screen and large in a portfolio. From the September 10 record to Monday is roughly $500 a ton. On a miner geared at two or three times the metal, that is not a footnote. It is also not a forecast of the next $500.
Horizon decides which forecast you are even allowed to use. Deutsche Bank’s $22,000 figure, if you accept it, is a 2027 story in that compilation. Goldman’s April surplus is a 2026 average story, and it sits under the price. A holder who needs the money in November is in neither story. A holder who can sit through a strike, a grade miss, and a Fed that hikes after all is in a different one. Copper mining stocks are allowed to be the second. They are not required to work in a month.
The practical test is the same one a careful owner uses on any mine. Write the price you need. Write the cost you believe, gross and net. Write the tons that have to show up this quarter, not in 2032. If the price you need is “higher than Friday,” you are trading a headline. If the tons you need are the ones Freeport, Southern Copper, and Antofagasta have already guided, you can check them against the next release. Checking is the investment. The adjective “good” is not.
What October can change, and what it cannot
October can change the average price of the fourth quarter if the bounce holds. A few cents a pound, sustained, is meaningful on hundreds of millions of pounds. Freeport’s realized price already cleared $6.50 in the quarter just ended, by the company’s estimate. Another leg up would be a fourth-quarter event. It would meet whatever volume the mines actually ship in these weeks, including a Grasberg that is still in a phased ramp and a gold sale that was delayed.
October can also change the nearby squeeze. A cash premium near $63 says prompt metal is tight. If cancelled warrants keep leaving and Chile’s weak August is repeated, the premium can widen. If Golden Week ends and Chinese buyers do not return, or if the dollar keeps climbing, the premium can die while the three-month price looks calm. Daga’s two-handed comment, thin stocks and weak demand, is the script for that argument. You will not settle it from a Monday print.
October cannot finish Grasberg. The company’s dates are mid-2027 for 80% and the end of 2027 for a full rate. A share that prices those dates as if they were this month is paying for a schedule. Schedules at a mine that killed seven people in a mud rush deserve to be read slowly. The operating update says the ramp is in line with the company’s expectations. “In line” is not “done.”
October cannot lift ore grade in southern Peru or at Los Pelambres. Southern Copper has already told you 2026 is a lower production year than 2025. Antofagasta has already cut the range. Those are not rumors. They are the companies’ numbers. A copper price forecast that ignores them will overstate the earnings that a higher price can produce. Earnings are price times pounds, minus cost. Cut the pounds and the same price yields less.
October cannot make a by-product into copper. Molybdenum near $29, gold shipments, silver, and zinc are why two of these net costs look unusually low. If you want copper demand to be your thesis, look at the pre-credit cost. Freeport near $2 before the extra gold credit faded, Southern Copper near $2.29 before credits, Antofagasta near $2.85 and guided at $2.40 to $2.60 before credits for the year. Against $6.50 those are all still wide. They are the numbers that remain if the credit fades. Wide is not the same as $0.05.
October cannot force the banks into a single story. One house just raised a long-term forecast to a level the market has already left behind. Another has carried a 2026 surplus. Others have targets above the tape for 2027 or for the next three months. Copper miners will not pay you the average of those cells. They will pay you, if they pay you, out of cash earned at the price they realize. The rest is someone else’s model.
The close
Copper prices are rising in the narrow sense that matters to a headline. On October 5 the three-month price was up 0.6% at $14,346 a ton, helped by a stock market and by hike odds that fell from about 71% to about 18%. The same metal fell 2.5% the week before. It remains about 3.6% under the September 10 record of $14,875. Prompt metal carries a premium. Chile’s August output was weak. China’s holiday has silenced the biggest buyer for a week, and at least one veteran watcher says demand there looks soft even though stocks are thin.
Could these three copper stocks benefit in October? Only in a way that fits the file, not the slogan.
Freeport can benefit on pounds it sells above a net cost a little over $2, at a realized price it already expects above $6.50 for the quarter just ended. It cannot benefit, this month, from the third of Grasberg’s old mill rate that is still missing. That third is a 2027 job. Gold credits that were deferred made the cost a bit worse on purpose, by the calendar, not by the rock.
Southern Copper can benefit because its net cash cost in the second quarter was $0.05 a pound and its half-year net cost was negative. The benefit is conditional. The condition is the by-product price, especially molybdenum. The volume condition is the opposite of a boom. The 2026 guide, 917,000 tons, is below 2025. Peru’s grades are the reason. A higher copper price does not put those grades back.
Antofagasta can benefit if second-half tons rise as management expects, because the net cost in the first half was $1.22 and the price is far above that. It has already shown the limit. While the metal was strong, the company cut 2026 guidance from 650,000–700,000 tons to 625,000–655,000. Gross costs jumped. Credits hid part of the jump. Earnings rose because the price did the lifting. That is a benefit. It is also a warning that the tons are not guaranteed by the price.
The idea is the refusal. Do not let a rising print stand in for a sold pound. Do not let a nickel cost stand in for a copper cost. Do not let a bank’s higher long-term forecast, still well under the tape, stand in for a view that the rally is cheap. October can pay the margin on metal that ships. It cannot mill the metal that does not. Sort the quote from the quarter. Then the question in the headline has an answer that is allowed to be partial, which is the only kind of answer the pits are offering.
A note on sources and limits
Monday’s LME price, the 0.6% rise to $14,346 a ton, the September 10 record of $14,875, the Fed odds near 18% versus about 71%, Daga’s comments, the cash premium near $63, and the note on Chinese stocks and demand are from the Reuters item carried on October 5. The prior week’s 2.5% drop to $14,258.50, LME stocks of 248,650 tons, cancelled metal of 114,000 tons, Chile’s August output of 369,500 tons, and the Shanghai stock draw are from the LME weekly review dated October 5. Bank of America’s long-term forecast of $12,000 a ton, and the risks it named, are from reports of the bank’s October 1 commodities update. Goldman’s $12,650 average and 490,000-ton surplus are from Reuters on April 21, 2026, and may have been revised since. The September 29 target list is MINING.COM’s compilation, not a single bank document, and the cells disagree. Freeport’s figures are from its October 2, 2026 operational update filed with regulators: production, sales, the $6.50 realized-price comment, the cost versus the $2.00 July estimate, Grasberg throughput, and the 2027 ramp. The September 8, 2025 mud rush and the seven deaths are as described in contemporaneous mine reporting of that event. The October 2 share prices for Freeport and Southern Copper are from a market note that day, not a live quote. Southern Copper’s production, the $0.05 and negative $0.03 net cash costs, the molybdenum price, and the 917,000-ton guide are from the company’s second-quarter 2026 results and call. The 956,300-ton 2025 figure is from the company’s September 2026 presentation. Antofagasta’s half-year tons, costs, the guidance cut to 625,000–655,000 tons, and Arriagada’s remarks are from the company’s August 13, 2026 half-year results. The earlier 650,000–700,000 range and the pre-credit cost guidance are from its second-quarter production report. Escondida’s strike vote is from October 5 reporting and is a vote, not a confirmed stoppage. This page names no best copper stocks, sets no price target of its own, and is not a recommendation to buy or sell any security.