Capstone Copper stock faces output pressure after Q3 results

Published on 11/03/2026 at 20:45 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

Capstone Copper stock faces renewed scrutiny after a softer production quarter. Record adjusted EBITDA offers support, but costs and output guidance weigh on the outlook.

Profit rises as production slips

Capstone Copper reported record adjusted EBITDA in the third quarter as stronger metal prices lifted revenue.
Lower copper output and higher unit costs pushed full-year production toward the low end of guidance.
Mantoverde's completed concentrator tie-in is expected to support higher fourth-quarter production.

Capstone Copper, CA14071L1085, Illustration mit AI erstellt.

Capstone Copper reported record adjusted EBITDA for the eighth consecutive quarter on October 29, but lower copper production and higher unit costs put the operating outlook under pressure. The company's Q3 results release covered the three months ended September 30, 2026.

Profit rises as production slips

Revenue rose 19 percent year over year to USD 712.0 million, while adjusted EBITDA increased to USD 358.3 million from USD 249.2 million. The company attributed the stronger earnings to higher realized copper, gold and silver prices. Adjusted net income attributable to shareholders rose to USD 93.8 million, compared with USD 49.4 million a year earlier.

Operationally, consolidated copper production fell 18 percent to 45,218 tonnes. Consolidated C1 cash costs increased 22 percent to USD 2.95 per pound, reflecting lower production volumes and higher diesel and sulfuric acid costs. The reported net income comparison was also affected by a non-cash impairment reversal recorded in the prior-year period.

Guidance moves toward difficult end

Capstone said 2026 copper production is expected to finish at the low end of its 200,000-to-230,000-tonne guidance range. C1 cash costs are expected to finish at the high end of the USD 2.45-to-2.75-per-pound range. The company also raised its capital spending forecast by USD 40 million to USD 830 million, according to a Reuters-sourced market report.

Pinto Valley's maintenance work weighed on quarterly output, while lower grades affected Mantos Blancos. At Mantoverde, the company reduced some cathode production because elevated sulfuric acid prices made parts of the ore uneconomic to process. The completed Mantoverde Optimized concentrator tie-in is expected to support higher fourth-quarter production.

Valuation signals remain mixed

Simply Wall St's November 3 analysis described a mixed setup after the softer quarter. Its popular valuation narrative placed fair value at CAD 18.01, while its discounted-cash-flow model produced an estimate of CAD 8.76. The contrasting outcomes leave execution at the Chilean and Arizona operations central to the investment case.

The real-time quote of Capstone Copper stock traded at EUR 7.12 on Lang & Schwarz at 20:41 CET on Tuesday, November 3, 2026.