South32 Ltd's stock soared 5.15% during intraday trading on Thursday, following the release of the company's robust first-half financial results that significantly exceeded market expectations.

The Australian diversified miner reported a 16% rise in first-half profit, with underlying earnings attributable reaching $435 million, beating the Visible Alpha consensus estimate of $386.6 million. The strong performance was driven by higher commodity prices, notably for copper, silver, and aluminium, along with lower controllable costs and the successful restart of operations at its Australian manganese division.

Further boosting investor sentiment, South32 announced an increased interim dividend of $0.039 per share, up from $0.034 a year earlier, and expanded its capital management program by $100 million to $2.6 billion. The company also maintained its fiscal year 2026 production guidance across its operated assets, demonstrating operational stability.