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Side-by-side financial comparison of CENTURY ALUMINUM CO (CENX) and Transocean Ltd. (RIG). Click either name above to swap in a different company.
Transocean Ltd. is the larger business by last-quarter revenue ($1.0B vs $633.7M, roughly 1.6× CENTURY ALUMINUM CO). Transocean Ltd. runs the higher net margin — 2.4% vs 0.3%, a 2.1% gap on every dollar of revenue. On growth, Transocean Ltd. posted the faster year-over-year revenue change (9.6% vs 0.4%). Transocean Ltd. produced more free cash flow last quarter ($321.0M vs $67.7M). Over the past eight quarters, Transocean Ltd.'s revenue compounded faster (16.9% CAGR vs 13.8%).
Century Aluminum Company is a US-based producer of primary aluminum, with aluminum plants in Kentucky, South Carolina and Iceland. It is the largest producer of primary aluminum in the United States. The company is a publicly held corporation listed on the NASDAQ. The headquarters is at One South Wacker in Chicago.
Transocean Ltd. is an American drilling company. It is the world's largest offshore drilling contractor based on revenue and is based in Steinhausen, Switzerland. The company has offices in 20 countries, including Canada, the United States, Norway, United Kingdom, India, Brazil, Singapore, Indonesia, and Malaysia.
CENX vs RIG — Head-to-Head
Income Statement — Q4 FY2025 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $633.7M | $1.0B |
| Net Profit | $1.8M | $25.0M |
| Gross Margin | 13.0% | 42.0% |
| Operating Margin | 5.2% | 23.0% |
| Net Margin | 0.3% | 2.4% |
| Revenue YoY | 0.4% | 9.6% |
| Net Profit YoY | -96.0% | 257.1% |
| EPS (diluted) | $0.03 | $0.13 |
Green = leading value per metric. Periods may differ when fiscal calendars don't align.
8-Quarter Revenue & Profit Trend
Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.
| Q4 25 | $633.7M | $1.0B | ||
| Q3 25 | $632.2M | $1.0B | ||
| Q2 25 | $628.1M | $988.0M | ||
| Q1 25 | $633.9M | $906.0M | ||
| Q4 24 | $630.9M | $952.0M | ||
| Q3 24 | $539.1M | $948.0M | ||
| Q2 24 | $560.8M | $861.0M | ||
| Q1 24 | $489.5M | $763.0M |
| Q4 25 | $1.8M | $25.0M | ||
| Q3 25 | $14.9M | $-1.9B | ||
| Q2 25 | $-4.6M | $-938.0M | ||
| Q1 25 | $29.7M | $-79.0M | ||
| Q4 24 | $45.2M | $7.0M | ||
| Q3 24 | $47.3M | $-494.0M | ||
| Q2 24 | $-2.5M | $-123.0M | ||
| Q1 24 | $246.8M | $98.0M |
| Q4 25 | 13.0% | 42.0% | ||
| Q3 25 | 12.2% | 43.2% | ||
| Q2 25 | 5.8% | 39.4% | ||
| Q1 25 | 9.6% | 31.8% | ||
| Q4 24 | 10.5% | 39.2% | ||
| Q3 24 | 15.2% | 40.6% | ||
| Q2 24 | 3.6% | 38.0% | ||
| Q1 24 | 3.4% | 31.5% |
| Q4 25 | 5.2% | 23.0% | ||
| Q3 25 | 9.2% | -163.1% | ||
| Q2 25 | 3.3% | -97.6% | ||
| Q1 25 | 7.3% | 7.1% | ||
| Q4 24 | 7.8% | 13.7% | ||
| Q3 24 | 11.8% | -51.2% | ||
| Q2 24 | 1.1% | -6.9% | ||
| Q1 24 | 0.4% | -0.4% |
| Q4 25 | 0.3% | 2.4% | ||
| Q3 25 | 2.4% | -187.1% | ||
| Q2 25 | -0.7% | -94.9% | ||
| Q1 25 | 4.7% | -8.7% | ||
| Q4 24 | 7.2% | 0.7% | ||
| Q3 24 | 8.8% | -52.1% | ||
| Q2 24 | -0.4% | -14.3% | ||
| Q1 24 | 50.4% | 12.8% |
| Q4 25 | $0.03 | $0.13 | ||
| Q3 25 | $0.15 | $-2.00 | ||
| Q2 25 | $-0.05 | $-1.06 | ||
| Q1 25 | $0.29 | $-0.11 | ||
| Q4 24 | $0.58 | $-0.14 | ||
| Q3 24 | $0.46 | $-0.58 | ||
| Q2 24 | $-0.03 | $-0.15 | ||
| Q1 24 | $2.26 | $0.11 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $134.2M | $620.0M |
| Total DebtLower is stronger | — | $5.2B |
| Stockholders' EquityBook value | $805.6M | $8.1B |
| Total Assets | $2.3B | $15.6B |
| Debt / EquityLower = less leverage | — | 0.64× |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $134.2M | $620.0M | ||
| Q3 25 | $151.4M | $833.0M | ||
| Q2 25 | $40.7M | $377.0M | ||
| Q1 25 | $44.9M | $263.0M | ||
| Q4 24 | $32.9M | $560.0M | ||
| Q3 24 | — | $435.0M | ||
| Q2 24 | $41.3M | $475.0M | ||
| Q1 24 | $93.5M | $446.0M |
| Q4 25 | — | $5.2B | ||
| Q3 25 | — | $4.8B | ||
| Q2 25 | — | $5.9B | ||
| Q1 25 | — | $5.9B | ||
| Q4 24 | — | $6.2B | ||
| Q3 24 | — | $6.5B | ||
| Q2 24 | — | $6.8B | ||
| Q1 24 | — | $6.8B |
| Q4 25 | $805.6M | $8.1B | ||
| Q3 25 | $741.8M | $8.1B | ||
| Q2 25 | $724.4M | $9.4B | ||
| Q1 25 | $726.3M | $10.2B | ||
| Q4 24 | $694.4M | $10.3B | ||
| Q3 24 | $628.5M | $10.2B | ||
| Q2 24 | $601.5M | $10.7B | ||
| Q1 24 | $601.5M | $10.5B |
| Q4 25 | $2.3B | $15.6B | ||
| Q3 25 | $2.1B | $16.2B | ||
| Q2 25 | $1.9B | $17.8B | ||
| Q1 25 | $2.0B | $19.0B | ||
| Q4 24 | $1.9B | $19.4B | ||
| Q3 24 | $2.1B | $19.5B | ||
| Q2 24 | $1.8B | $20.3B | ||
| Q1 24 | $1.8B | $19.9B |
| Q4 25 | — | 0.64× | ||
| Q3 25 | — | 0.60× | ||
| Q2 25 | — | 0.63× | ||
| Q1 25 | — | 0.58× | ||
| Q4 24 | — | 0.60× | ||
| Q3 24 | — | 0.64× | ||
| Q2 24 | — | 0.63× | ||
| Q1 24 | — | 0.65× |
Cash Flow & Capital Efficiency
How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.
| Metric | | |
|---|---|---|
| Operating Cash FlowLast quarter | $102.8M | $349.0M |
| Free Cash FlowOCF − Capex | $67.7M | $321.0M |
| FCF MarginFCF / Revenue | 10.7% | 30.8% |
| Capex IntensityCapex / Revenue | 5.5% | 2.7% |
| Cash ConversionOCF / Net Profit | 57.11× | 13.96× |
| TTM Free Cash FlowTrailing 4 quarters | $84.8M | $626.0M |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $102.8M | $349.0M | ||
| Q3 25 | $2.0M | $246.0M | ||
| Q2 25 | $7.9M | $128.0M | ||
| Q1 25 | $72.3M | $26.0M | ||
| Q4 24 | $-41.4M | $206.0M | ||
| Q3 24 | $20.1M | $194.0M | ||
| Q2 24 | $11.5M | $133.0M | ||
| Q1 24 | $-14.8M | $-86.0M |
| Q4 25 | $67.7M | $321.0M | ||
| Q3 25 | $-18.1M | $235.0M | ||
| Q2 25 | $-15.9M | $104.0M | ||
| Q1 25 | $51.1M | $-34.0M | ||
| Q4 24 | $-54.6M | $177.0M | ||
| Q3 24 | $-2.4M | $136.0M | ||
| Q2 24 | $-5.4M | $49.0M | ||
| Q1 24 | $-44.5M | $-169.0M |
| Q4 25 | 10.7% | 30.8% | ||
| Q3 25 | -2.9% | 22.9% | ||
| Q2 25 | -2.5% | 10.5% | ||
| Q1 25 | 8.1% | -3.8% | ||
| Q4 24 | -8.7% | 18.6% | ||
| Q3 24 | -0.4% | 14.3% | ||
| Q2 24 | -1.0% | 5.7% | ||
| Q1 24 | -9.1% | -22.1% |
| Q4 25 | 5.5% | 2.7% | ||
| Q3 25 | 3.2% | 1.1% | ||
| Q2 25 | 3.8% | 2.4% | ||
| Q1 25 | 3.3% | 6.6% | ||
| Q4 24 | 2.1% | 3.0% | ||
| Q3 24 | 4.2% | 6.1% | ||
| Q2 24 | 3.0% | 9.8% | ||
| Q1 24 | 6.1% | 10.9% |
| Q4 25 | 57.11× | 13.96× | ||
| Q3 25 | 0.13× | — | ||
| Q2 25 | — | — | ||
| Q1 25 | 2.43× | — | ||
| Q4 24 | -0.92× | 29.43× | ||
| Q3 24 | 0.42× | — | ||
| Q2 24 | — | — | ||
| Q1 24 | -0.06× | -0.88× |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
CENX
| Aluminum | $566.3M | 89% |
| Alumina | $67.4M | 11% |
RIG
| Ultra Deepwater Floaters | $433.0M | 42% |
| BR | $236.0M | 23% |
| Other Geographical | $211.0M | 20% |
| Harsh Environment Floaters | $163.0M | 16% |
