Tenaris SA (TS) surged 5.95% in pre-market trading following the release of its fourth-quarter financial results that significantly exceeded analyst expectations.

The Luxembourg-based steel pipe manufacturer reported quarterly earnings of $0.87 per share, beating the analyst consensus estimate of $0.40 by 115.88%. While this represents a 7.45% decrease from earnings of $0.94 per share in the same period last year, the substantial beat relative to expectations appears to have driven investor optimism.

Quarterly sales also surpassed forecasts, reaching $2.995 billion compared to the estimated $2.958 billion, marking a 1.24% beat and a 5.27% increase over sales of $2.845 billion in the fourth quarter of 2024. The company's performance during challenging market conditions, including the impact of U.S. tariffs, demonstrated operational resilience that traders responded to positively.