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Side-by-side financial comparison of CENTURY ALUMINUM CO (CENX) and IDEX Corporation (IEX). Click either name above to swap in a different company.
IDEX Corporation is the larger business by last-quarter revenue ($886.9M vs $633.7M, roughly 1.4× CENTURY ALUMINUM CO). IDEX Corporation runs the higher net margin — 13.5% vs 0.3%, a 13.2% gap on every dollar of revenue. On growth, IDEX Corporation posted the faster year-over-year revenue change (8.9% vs 0.4%). IDEX Corporation produced more free cash flow last quarter ($86.0M vs $67.7M). Over the past eight quarters, CENTURY ALUMINUM CO's revenue compounded faster (13.8% CAGR vs 5.4%).
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.
IDEX can refer to several things, including:International Defence Exhibition, a biennial arms and defense technology sales exhibition IDEX Corporation, a publicly listed company that makes fluidics systems and specialty engineered products Ideanomics, a publicly traded company that trades under the IDEX ticker symbol.
CENX vs IEX — Head-to-Head
Income Statement — Q4 FY2025 vs Q2 FY2026
| Metric | | |
|---|---|---|
| Revenue | $633.7M | $886.9M |
| Net Profit | $1.8M | $120.0M |
| Gross Margin | 13.0% | 44.9% |
| Operating Margin | 5.2% | 19.4% |
| Net Margin | 0.3% | 13.5% |
| Revenue YoY | 0.4% | 8.9% |
| Net Profit YoY | -96.0% | 25.7% |
| EPS (diluted) | $0.03 | $1.61 |
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.
| Q2 26 | — | $886.9M | ||
| Q1 26 | — | $899.1M | ||
| Q4 25 | $633.7M | $899.1M | ||
| Q3 25 | $632.2M | $878.7M | ||
| Q2 25 | $628.1M | $865.4M | ||
| Q1 25 | $633.9M | $814.3M | ||
| Q4 24 | $630.9M | $862.9M | ||
| Q3 24 | $539.1M | $798.2M |
| Q2 26 | — | $120.0M | ||
| Q1 26 | — | $128.3M | ||
| Q4 25 | $1.8M | $128.3M | ||
| Q3 25 | $14.9M | $127.8M | ||
| Q2 25 | $-4.6M | $131.6M | ||
| Q1 25 | $29.7M | $95.5M | ||
| Q4 24 | $45.2M | $123.2M | ||
| Q3 24 | $47.3M | $119.1M |
| Q2 26 | — | 44.9% | ||
| Q1 26 | — | 43.1% | ||
| Q4 25 | 13.0% | 43.1% | ||
| Q3 25 | 12.2% | 44.5% | ||
| Q2 25 | 5.8% | 45.3% | ||
| Q1 25 | 9.6% | 45.3% | ||
| Q4 24 | 10.5% | 42.5% | ||
| Q3 24 | 15.2% | 44.3% |
| Q2 26 | — | 19.4% | ||
| Q1 26 | — | 20.4% | ||
| Q4 25 | 5.2% | 20.4% | ||
| Q3 25 | 9.2% | 21.1% | ||
| Q2 25 | 3.3% | 21.7% | ||
| Q1 25 | 7.3% | 17.4% | ||
| Q4 24 | 7.8% | 19.2% | ||
| Q3 24 | 11.8% | 21.0% |
| Q2 26 | — | 13.5% | ||
| Q1 26 | — | 14.3% | ||
| Q4 25 | 0.3% | 14.3% | ||
| Q3 25 | 2.4% | 14.5% | ||
| Q2 25 | -0.7% | 15.2% | ||
| Q1 25 | 4.7% | 11.7% | ||
| Q4 24 | 7.2% | 14.3% | ||
| Q3 24 | 8.8% | 14.9% |
| Q2 26 | — | $1.61 | ||
| Q1 26 | — | $1.71 | ||
| Q4 25 | $0.03 | $1.71 | ||
| Q3 25 | $0.15 | $1.70 | ||
| Q2 25 | $-0.05 | $1.74 | ||
| Q1 25 | $0.29 | $1.26 | ||
| Q4 24 | $0.58 | $1.61 | ||
| Q3 24 | $0.46 | $1.57 |
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 | $586.2M |
| Total DebtLower is stronger | — | — |
| Stockholders' EquityBook value | $805.6M | $4.0B |
| Total Assets | $2.3B | $6.9B |
| Debt / EquityLower = less leverage | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q2 26 | — | $586.2M | ||
| Q1 26 | — | $580.0M | ||
| Q4 25 | $134.2M | $580.0M | ||
| Q3 25 | $151.4M | $593.8M | ||
| Q2 25 | $40.7M | $568.2M | ||
| Q1 25 | $44.9M | $594.1M | ||
| Q4 24 | $32.9M | $620.8M | ||
| Q3 24 | — | $633.2M |
| Q2 26 | — | — | ||
| Q1 26 | — | — | ||
| Q4 25 | — | $1.8B | ||
| Q3 25 | — | $1.9B | ||
| Q2 25 | — | $1.9B | ||
| Q1 25 | — | $2.0B | ||
| Q4 24 | — | $2.0B | ||
| Q3 24 | — | $2.1B |
| Q2 26 | — | $4.0B | ||
| Q1 26 | — | $4.0B | ||
| Q4 25 | $805.6M | $4.0B | ||
| Q3 25 | $741.8M | $4.0B | ||
| Q2 25 | $724.4M | $4.0B | ||
| Q1 25 | $726.3M | $3.9B | ||
| Q4 24 | $694.4M | $3.8B | ||
| Q3 24 | $628.5M | $3.8B |
| Q2 26 | — | $6.9B | ||
| Q1 26 | — | $6.9B | ||
| Q4 25 | $2.3B | $6.9B | ||
| Q3 25 | $2.1B | $7.0B | ||
| Q2 25 | $1.9B | $6.9B | ||
| Q1 25 | $2.0B | $6.8B | ||
| Q4 24 | $1.9B | $6.7B | ||
| Q3 24 | $2.1B | $7.0B |
| Q2 26 | — | — | ||
| Q1 26 | — | — | ||
| Q4 25 | — | 0.45× | ||
| Q3 25 | — | 0.48× | ||
| Q2 25 | — | 0.46× | ||
| Q1 25 | — | 0.50× | ||
| Q4 24 | — | 0.52× | ||
| Q3 24 | — | 0.55× |
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 | — |
| Free Cash FlowOCF − Capex | $67.7M | $86.0M |
| FCF MarginFCF / Revenue | 10.7% | 9.7% |
| Capex IntensityCapex / Revenue | 5.5% | 2.0% |
| Cash ConversionOCF / Net Profit | 57.11× | — |
| TTM Free Cash FlowTrailing 4 quarters | $84.8M | $654.3M |
8-quarter trend — quarters aligned by calendar period.
| Q2 26 | — | — | ||
| Q1 26 | — | — | ||
| Q4 25 | $102.8M | $209.5M | ||
| Q3 25 | $2.0M | $203.5M | ||
| Q2 25 | $7.9M | $161.7M | ||
| Q1 25 | $72.3M | $105.7M | ||
| Q4 24 | $-41.4M | $172.6M | ||
| Q3 24 | $20.1M | $205.3M |
| Q2 26 | — | $86.0M | ||
| Q1 26 | — | $189.8M | ||
| Q4 25 | $67.7M | $189.8M | ||
| Q3 25 | $-18.1M | $188.7M | ||
| Q2 25 | $-15.9M | $146.9M | ||
| Q1 25 | $51.1M | $91.4M | ||
| Q4 24 | $-54.6M | $157.1M | ||
| Q3 24 | $-2.4M | $191.6M |
| Q2 26 | — | 9.7% | ||
| Q1 26 | — | 21.1% | ||
| Q4 25 | 10.7% | 21.1% | ||
| Q3 25 | -2.9% | 21.5% | ||
| Q2 25 | -2.5% | 17.0% | ||
| Q1 25 | 8.1% | 11.2% | ||
| Q4 24 | -8.7% | 18.2% | ||
| Q3 24 | -0.4% | 24.0% |
| Q2 26 | — | 2.0% | ||
| Q1 26 | — | 7.1% | ||
| Q4 25 | 5.5% | 2.2% | ||
| Q3 25 | 3.2% | 1.7% | ||
| Q2 25 | 3.8% | 1.7% | ||
| Q1 25 | 3.3% | 1.8% | ||
| Q4 24 | 2.1% | 1.8% | ||
| Q3 24 | 4.2% | 1.7% |
| Q2 26 | — | — | ||
| Q1 26 | — | — | ||
| Q4 25 | 57.11× | 1.63× | ||
| Q3 25 | 0.13× | 1.59× | ||
| Q2 25 | — | 1.23× | ||
| Q1 25 | 2.43× | 1.11× | ||
| Q4 24 | -0.92× | 1.40× | ||
| Q3 24 | 0.42× | 1.72× |
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% |
IEX
Segment breakdown not available.
