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How Century Aluminum (CENX) makes money

Century Aluminum (CENX) made $961M of revenue in the third quarter 2026 (Q3 2026), +52% from a year earlier. Aluminum brought in $905M (94%); Alumina brought in $56.5M (6%). Of every dollar of revenue, 32¢ was left as gross profit, 30¢ was left as operating profit, 31¢ was left as net earnings.

Drawing the Sankey…

Century Aluminum revenue by segment, Q3 2026Century Aluminum revenue by segment, Q3 2026Aluminum$905MAlumina$56.5M
Century Aluminum: revenue by line, Q1 2025 to Q3 2026Century Aluminum: revenue by line, Q1 2025 to Q3 2026AluminumAluminaAluminum: $905M latest$905MAlumina: $56.5M latestQ1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026Q3 2026
Alumina went from 15% of revenue in Q1 2025 to 6% in Q3 2026, the largest shift in the mix.
Century Aluminum revenue by quarterCentury Aluminum revenue by quarter$634MQ1 2025$628MQ2 2025$632MQ3 2025$634MQ4 2025$649MQ1 2026$752MQ2 2026$961MQ3 2026
Century Aluminum: where each dollar of revenue goesCentury Aluminum: where each dollar of revenue goesCost of revenue68¢Gross profit32¢Operating expenses1¢Operating profit30¢Income tax1¢Net earnings31¢Operating cash flow41¢Free cash flow37¢

Revenue by segment, Q3 2026

SegmentRevenueShareQ/QY/Y
Aluminum$905M94.1%+29%+58%
Alumina$56.5M5.9%+13%-4%

Where each dollar of revenue goes

LineQ3 2026% of revenue
Revenue$961M100.0%
Cost of revenue$658M68.5%
Gross profit$303M31.5%
Operating expenses$10.6M1.1%
Operating profit$292M30.4%
Income tax$11.6M1.2%
Net earnings$303M31.5%
Operating cash flow$395M41.1%
Free cash flow$357M37.2%

Revenue, quarter by quarter

QuarterRevenueY/Y
Q3 2026$961M+52%
Q2 2026$752M+20%
Q1 2026$649M+2%
Q4 2025$634M+0.4%
Q3 2025$632M+17%
Q2 2025$628M+12%
Q1 2025$634M+30%

From Century Aluminum's 10-Q filed Nov 5, 2026 (on EDGAR).

Questions

How does Century Aluminum make money?

Century Aluminum (CENX) made $961M of revenue in the third quarter 2026 (Q3 2026), +52% from a year earlier. Aluminum brought in $905M (94%); Alumina brought in $56.5M (6%). Of every dollar of revenue, 32¢ was left as gross profit, 30¢ was left as operating profit, 31¢ was left as net earnings.

What is Century Aluminum's biggest business?

Aluminum: $905M in the third quarter 2026, 94% of revenue, +58% from a year earlier.

What is Century Aluminum's profit margin?

Net earnings were $303M, 31.5% of revenue, in the third quarter 2026; the operating margin was 30.4%.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.