Rio Tinto stock holds firm as copper and aluminium drive earnings

Rio Tinto Group (ISIN GB0007188757) stock is trading close to recent highs, supported by a stronger earnings mix from copper and aluminium that now accounts for most of the miner's underlying profit as of the first half of 2026, according to Mitrade data dated September 4, 2026.

Copper and aluminium now dominate earnings

According to an analysis published by Mitrade on September 4, 2026, copper and aluminium contributed 56% of Rio Tinto's US$6.85 billion in first half 2026 underlying earnings.

The same Mitrade overview reports that copper alone generated 39% of this US$6.85 billion underlying earnings figure in the first half of 2026, highlighting how far the portfolio has shifted away from a pure iron ore story.

Earnings momentum in copper division

Mitrade also notes that Rio Tinto's copper division EBITDA surged 84% to US$5.7 billion in the first half of 2026, while iron ore EBITDA slipped 1% in the same period, underscoring the differential momentum between the two segments.

For investors, that 84% jump in copper EBITDA to US$5.7 billion versus only a 1% decline in iron ore EBITDA in first half 2026 underlines why the market increasingly values Rio Tinto as a diversified metals group rather than a pure-play on iron ore.

Market reaction and price levels

A same-day iron ore market wrap from The Rio Times on September 4, 2026 shows Rio Tinto stock closing at US$102.84, up 0.09% on the day, reinforcing the view that recent selling in iron ore exposed peers has been selective rather than broad-based.

In that same Rio Times market table, Rio Tinto's nearly flat close at US$102.84 is contrasted with more pronounced moves in other iron ore names, with the commentary explicitly noting that diversified miners with copper and aluminium earnings are cushioned from iron ore price swings.

Operational update from Madagascar

An update from Shanghai Metals Market dated September 4, 2026 reports that Rio Tinto's QIT Madagascar Minerals unit temporarily suspended mining operations at the Mandena ilmenite mine following multiple road blockages to the site on August 27, 2026, affecting near-term titanium supply.

While the SMM Titanium Flash note does not quantify the production impact, the operational pause at Mandena highlights the logistical and community-related risks to Rio Tinto's titanium dioxide feedstock chain, adding a layer of complexity for investors assessing segment contributions beyond copper and iron ore.

Representative product: aluminium for mobility and construction

A key representative product within Rio Tinto's portfolio is primary aluminium, which feeds into transportation, packaging and construction applications worldwide and benefits directly from the company's upstream bauxite and alumina assets.

Rio Tinto stock and latest price context

Rio Tinto stock last closed at US$102.84 on the New York Stock Exchange as of September 4, 2026, a level that investors are watching closely as the group leans further into copper and aluminium earnings while its iron ore segment faces more muted momentum.