Alcoa entered its second quarter of 2026 riding the sharpest aluminum price surge in years - London Metal Exchange prices on a 15-day lag averaged $3,585 per metric ton, up more than 40% from a year earlier - and then announced the largest strategic move of its post-separation life: a roughly $4.1 billion agreement (upfront, plus up to $750 million contingent) to acquire South32's bauxite, alumina, and aluminum assets across Australia, Brazil, and South Africa. The quarter delivered on the windfall: record quarterly revenue near $4.0 billion, an Aluminum segment Adjusted EBITDA of $1.07 billion that was roughly eleven times the year-ago figure, and a quarterly margin on that segment of 32%. Adjusted net income rose 51% sequentially to $562 million, or $2.12 per share.
The windfall, however, was not uniform. The Alumina segment swung from a $139 million profit a year earlier to a $96 million loss in Q2 2026 - the mirror image of aluminum - as alumina prices collapsed roughly 30% year over year on new Chinese and Indonesian refining supply and the Pinjarra refinery in Australia endured an operational outage tied to Cyclone Narelle. Management cut its full-year alumina production guidance by 200,000 to 300,000 metric tons as a direct result. This is the central tension of the Alcoa story right now: the record aluminum profitability that is funding the company's transformation is driven by commodity price, and the very alumina business the company is about to double down on is currently the one losing money. The stock, at roughly $54 and down more than a third from its 52-week high near $84, already trades at a discounted multiple that says the market expects the cycle to turn. Whether the aluminum super-cycle persists and whether the South32 deal de-risks or concentrates that exposure are the two questions the next several quarters answer.