Tenaris SA (TNRSF) stock

TNRSFOTCSteel Works, Blast Furnaces & Rolling Mills (Coke Ovens)Also trades as TS

Financials through fiscal 2025, year ended Dec 31, 2025Last filing: 20-F on Mar 31, 2026Score 8/30

$28.12+0.00 (0.00%)

Close on Oct 19, 2026Market cap $30.86BP/E –Yield –

Tenaris operating margin

Operating margin is operating income as a percentage of revenue.

For fiscal 2025 it was 19.1%, against 19.3% the year before. The highest annual figure on record is 29.0% in fiscal 2023.

Period	Period end	Value	Change (pts)
FY2025	Dec 31, 2025	19.1%	−0.3
FY2024	Dec 31, 2024	19.3%	−9.7
FY2023	Dec 31, 2023	29.0%	+3.8
FY2022	Dec 31, 2022	25.2%	+14.3
FY2021	Dec 31, 2021	10.8%	+23.7
FY2020	Dec 31, 2020	-12.9%	−24.3
FY2019	Dec 31, 2019	11.4%	+0.0
FY2018	Dec 31, 2018	11.4%	+5.1
FY2017	Dec 31, 2017	6.3%	+7.7
FY2016	Dec 31, 2016	-1.4%	−3.8
FY2015	Dec 31, 2015	2.4%	–