Earnings quality appears strained as evidenced by a 2026Q1 OCF/NI ratio of 0.20, indicating that accounting profits are not effectively converting into operational liquidity.
| Metric | TTM | Dec'25 | Dec'24 | Dec'23 | Dec'22 | Dec'21 | Dec'20 | Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 | Dec'12 | Dec'11 | Dec'10 | Dec'09 | Dec'08 | Dec'07 | Dec'06 | Dec'05 | Dec'04 | Dec'03 | Dec'02 | Dec'01 | Dec'00 | Dec'99 | Dec'98 | Dec'97 | Dec'96 |
|---|
| Cash from Operations | 179.7M | 183.6M | -24.6M | 105.6M | 25.9M | -64.7M | 42.9M | 17.7M | -69.1M | 37.91M | 38.17M | 31.87M | 196.41M | 18.6M | 37.14M | -2.94M | 131.51M | 39.4M | -665.44M | -5.75M | 185.35M | 134.94M | 105.83M | 87.38M | 54.49M | 38.62M | 58.1M | -44.2M | 25.4M | 9.3M | 8.4M |
| Operating CF Margin % | - | 7.26% | -1.11% | 4.83% | 0.93% | -2.92% | 2.67% | 0.96% | -3.65% | 2.39% | 2.89% | 1.63% | 10.17% | 1.28% | 2.92% | -0.22% | 11.25% | 4.38% | -33.77% | -0.32% | 11.89% | 11.92% | 9.98% | 11.17% | 7.66% | 5.9% | 13.56% | -7.81% | 3.91% | 1.29% | 1.22% |
| Operating CF Growth % | 218.18% | 846.34% | -123.3% | 307.72% | 140.03% | -250.82% | 142.37% | 125.62% | -282.25% | -0.68% | 19.79% | -83.78% | 955.86% | -49.91% | 1364.95% | -102.23% | 233.79% | 105.92% | -11462.78% | -103.1% | 37.36% | 27.51% | 21.11% | 60.37% | 41.07% | -33.53% | 231.45% | -274.02% | 173.12% | 10.71% | - |
| Net Income | 349.6M | 40M | 320.7M | -52.3M | -14.1M | -167.1M | -123.3M | -80.8M | -66.2M | -252.41M | -252.41M | -59.31M | 112.49M | -40.31M | -35.61M | 11.32M | 59.97M | -205.98M | -898.32M | -101.25M | -40.95M | -116.25M | 27.97M | 966K | -18.61M | -13.7M | 25.3M | 5.3M | 17.9M | 1.1M | 16.5M |
| Depreciation & Amortization | 93.8M | 91.8M | 81.8M | 74.7M | 73.4M | 82.6M | 83M | 83.2M | 90.1M | 84.78M | 84.78M | 80.12M | 70.73M | 66.57M | 62.57M | 62.19M | 63.55M | 72.62M | 84.27M | 78.06M | 69.22M | 56.53M | 50.25M | 51.26M | 56.66M | 44.43M | 14.39M | 18.7M | 19.7M | 18.4M | 18M |
| Stock-Based Compensation | 9.4M | 0 | 0 | 0 | -600K | 20.8M | 0 | 6.5M | 3.7M | 1.5M | 1.5M | 1.84M | 1.33M | 1.08M | 613K | 2.86M | 1.91M | 3.34M | -359K | -743K | 987K | -1.57M | 820K | 1.43M | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Deferred Taxes | -12.7M | -13.7M | -1.3M | -30.8M | 44.2M | -30.6M | 0 | -6.5M | 0 | -893K | -893K | -178K | 2.63M | -47.1M | 1.53M | 2.49M | 15.55M | 44.95M | 329.53M | -131.82M | -126.34M | -59.83M | 6.62M | 8.89M | 4.96M | -10.15M | 12.45M | 22M | -3.8M | -6.4M | -7.9M |
| Other Non-Cash Items | -121.5M | 114M | -254.1M | 84M | -38M | 105.1M | 58.8M | 3.8M | 10.3M | 156.84M | 156.47M | 24.43M | -5.38M | 5.12M | -10.01M | -24.49M | 36.56M | 26.44M | 763.77M | 415.97M | 344.98M | 297.23M | 17.46M | 32.2M | 6.79M | -3.18M | -4.67M | 100K | 2M | 1M | 1.7M |
| Working Capital Changes | -130.6M | -48.5M | -171.7M | 30M | -39M | -75.5M | 24.4M | 11.5M | -103.3M | 48.1M | 48.72M | -15.04M | 14.6M | 33.25M | 18.04M | -57.31M | -46.03M | 98.02M | -944.32M | -265.97M | -62.54M | -41.17M | 2.7M | -7.37M | 4.69M | 10.08M | 10.62M | -32.3M | 2.9M | -100K | 2M |
| Change in Receivables | -86M | -30.6M | -29.5M | -33.8M | 13.7M | -16.2M | 39.9M | 12.4M | -39.4M | -2.96M | -2.96M | 68.19M | -19.98M | -6M | -2.54M | -3.74M | -6.2M | 23.15M | 32.59M | 19.92M | -30.36M | -3.44M | -19.44M | -5.13M | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Change in Inventory | 17.7M | 10.8M | 2.3M | 25.8M | -12.8M | -134.5M | -15.5M | 4.4M | -62.8M | 919K | 919K | 44.9M | -16.51M | -21.92M | 31.85M | -35.82M | -24.01M | 35.77M | -18.84M | -26.08M | -28.52M | -152K | -4.94M | -2.76M | -1.67M | 763K | 3.09M | 26.8M | -22.8M | 6.1M | -16.8M |
| Change in Payables | 4M | 100K | -20.3M | -19.4M | -15.8M | 44.8M | 20.6M | -25.2M | 30.5M | 2.27M | 2.27M | -60.58M | 11.8M | 25.22M | -12.11M | -904K | 11.67M | -17.6M | -1.51M | 18.21M | 9.61M | 8.53M | 2.6M | -2.93M | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Cash from Investing | 46.9M | -98.8M | -67.3M | -57.8M | -85.5M | -82.6M | -11.8M | -38.8M | -82.9M | -20.9M | -21.16M | -43.36M | -109.06M | -116.06M | -32.53M | -24.89M | -25.47M | -46.21M | -159.73M | -108.57M | -211.94M | -305.34M | -275.29M | -78.69M | -18.2M | -382.25M | -106.16M | 222.7M | -51.8M | -40M | -72.6M |
| Capital Expenditures | -152.4M | -98.8M | -82.3M | -95M | -86.3M | -83M | -13.4M | -59.6M | -83M | -21.94M | -21.94M | -54.7M | -54.79M | -63.63M | -31.49M | -20.1M | -12.24M | -16.93M | -44.54M | -24.24M | -23.6M | -18.03M | -15.24M | -18.86M | -18.43M | -14.46M | -112.36M | -23M | -51.5M | -40M | -20.6M |
| CapEx % of Revenue | 5.99% | 3.91% | 3.71% | 4.35% | 3.11% | 3.75% | 0.83% | 3.25% | 4.38% | 1.38% | 1.66% | 2.81% | 2.84% | 4.38% | 2.48% | 1.48% | 1.05% | 1.88% | 2.26% | 1.35% | 1.51% | 1.59% | 1.44% | 2.41% | 2.59% | 2.21% | 26.22% | 4.06% | 7.92% | 5.55% | 2.99% |
| Acquisitions | -5.7M | 0 | 15M | 11.5M | 800K | 400K | 0 | 20.8M | 100K | 14.4M | 1.04M | 11.31M | -55.21M | -51.51M | -7.59M | -9.83M | -19.23M | -20.22M | 331K | 0 | 0 | -7M | -198.58M | -59.84M | 0 | -466.81M | 0 | 0 | 0 | 0 | 0 |
| Investments | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Other Investing | 205M | 0 | 0 | 25.7M | 0 | 0 | 1.6M | 20.8M | 100K | 1.04M | 781K | 24K | 942K | -914K | 6.55M | 3.67M | 823K | -29.28M | -80.31M | 636.94M | -188.34M | -280.31M | -61.46M | 0 | 231K | 99.03M | 6.21M | 245.7M | -300K | 0 | -52M |
| Cash from Financing | 59.3M | 15.1M | 37.3M | -13M | 74.4M | 103.7M | 13.5M | 21.1M | 23.7M | 404K | -1.18M | -36.35M | -8.2M | -2.43M | -4.03M | -93.06M | 23K | 75.65M | 893.61M | 78.92M | 105.2M | 143.99M | 185.42M | -25.57M | -4.59M | 324.05M | -4.17M | -93.5M | 26.4M | 30.5M | 21.4M |
| Debt Issued (Net) | 77M | 23.9M | 47.3M | -49.8M | 75.9M | 134.9M | 14.8M | 20.8M | 23.3M | 0 | 0 | 0 | -8.6M | 2.73M | 0 | -47.26M | 0 | -27.43M | -480.2M | -339.44M | 100.35M | 139.66M | -14M | -26.3M | 0 | 321.35M | 0 | -89.4M | 30.4M | 34.6M | 24.3M |
| Equity Issued (Net) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 300K | 400K | 400K | 0 | -36.35M | 403K | 44K | -4.03M | -45.81M | 23K | 103.08M | 1.37B | 417.77M | 3.45M | 1.41M | 215.79M | 736K | 5K | 25M | 0 | 0 | 0 | 0 | 0 |
| Dividends Paid | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -6.62M | 0 | 0 | 0 | 0 | 0 | 0 | -16K | -3.31M | -11K | -4.59M | -5.74M | -4.17M | -4.1M | -4M | -4M | -3M |
| Share Repurchases | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -36.35M | 0 | 0 | -4.03M | -45.89M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Other Financing | -17.7M | -8.8M | -10M | 36.8M | -1.5M | -31.2M | -1.3M | 0 | 0 | 0 | 1.18M | 0 | 0 | -5.2M | 0 | 0 | 0 | 0 | 657K | 588K | 1.39M | 2.94M | -13.06M | 0 | 0 | -16.57M | 0 | 0 | 0 | -100K | 100K |
| Net Change in Cash | 285.9M | 99.9M | -54.6M | 34.8M | 14.8M | -43.6M | 44.6M | 0 | -128.3M | 17.01M | 17.01M | -47.85M | 79.15M | -99.89M | 575K | -120.89M | 106.06M | 68.83M | 68.44M | -35.4M | 78.61M | -26.42M | 15.96M | -16.89M | 31.7M | -19.57M | -52.23M | 85M | 0 | -200K | -42.8M |
| Free Cash Flow | 27.3M | 84.8M | -106.9M | 10.6M | -60.4M | -147.7M | 29.5M | -41.9M | -152.1M | 15.97M | 16.23M | -22.83M | 141.62M | -45.03M | 5.65M | -23.04M | 119.27M | 22.46M | -709.97M | -30M | 161.75M | 116.91M | 90.59M | 68.52M | 36.06M | 24.17M | -54.26M | -67.2M | -26.1M | -30.7M | -12.2M |
| FCF Margin % | 1.07% | 3.35% | -4.81% | 0.48% | -2.17% | -6.68% | 1.84% | -2.28% | -8.03% | 1% | 1.23% | -1.17% | 7.33% | -3.1% | 0.44% | -1.7% | 10.2% | 2.5% | -36.03% | -1.67% | 10.38% | 10.32% | 8.54% | 8.76% | 5.07% | 3.69% | -12.66% | -11.87% | -4.01% | -4.26% | -1.77% |
| FCF Growth % | 341.59% | 179.33% | -1108.49% | 117.55% | 59.11% | -600.68% | 170.41% | 72.45% | -1052.41% | -1.6% | 171.07% | -116.12% | 414.52% | -897.24% | 124.52% | -119.31% | 430.93% | 103.16% | -2266.97% | -118.54% | 38.36% | 29.06% | 32.2% | 90.02% | 49.21% | 144.54% | 19.25% | -157.47% | 14.98% | -151.64% | - |
| FCF per Share | 0.26 | 0.89 | -1.09 | 0.11 | -0.66 | -1.64 | 0.33 | -0.47 | -1.74 | 0.18 | 0.19 | -0.26 | 1.58 | -0.51 | 0.06 | -0.25 | 1.28 | 0.30 | -15.86 | -0.81 | 4.98 | 3.63 | 3.16 | 3.25 | 1.73 | 1.18 | -2.66 | -3.27 | -1.30 | -1.40 | -0.58 |
| FCF Conversion (FCF/Net Income) | 0.08x | 4.39x | -0.07x | -2.45x | -1.84x | 0.39x | -0.35x | -0.22x | 1.04x | 0.78x | -0.15x | -0.67x | 1.75x | -0.46x | -1.04x | -0.26x | 2.19x | -0.19x | 0.74x | 0.06x | -4.53x | -1.16x | 3.78x | 90.45x | -2.93x | -2.82x | 2.30x | -11.33x | 1.42x | 8.45x | 0.51x |
| Interest Paid | -4.9M | 0 | 36M | 35.2M | 27M | 36.8M | 14.5M | 21.8M | 19.7M | 19.5M | 19.5M | 18.78M | 19.07M | 20.54M | 20.21M | 21.26M | 19.81M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Taxes Paid | -2.3M | 0 | 14.5M | 5.9M | 900K | 3.1M | 200K | 500K | 13.1M | 5.6M | 13.9M | 24.13M | 12.19M | 28.65M | 41.45M | 64.62M | 6.48M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Commodity and energy volatility
As reported in recent financial statements, Century Aluminum’s operating cash flow frequently decouples from net income, evidenced by a 2026Q1 OCF/NI ratio of just 0.20, which suggests that reported accounting profits are not translating into meaningful liquidity for the business.
The persistent gap between net income and operating cash flow indicates that earnings are heavily influenced by non-cash items or accounting adjustments rather than core operational efficiency. Investors should monitor this divergence, as it implies that the company's reported profitability may be significantly overstated relative to its actual ability to generate cash.
Based on the provided quarterly data, Century Aluminum’s free cash flow trajectory is highly erratic, with margins swinging from a positive 10.7% in 2025Q4 to a negative 1.0% in 2026Q1, reflecting the company's sensitivity to cyclical commodity price fluctuations.
The inability to maintain consistent positive free cash flow suggests that the business model is structurally challenged by its high fixed-cost base. This volatility warrants further investigation into whether the company can sustain operations during prolonged periods of commodity price weakness without external financing.
According to recent SEC filings, Century Aluminum’s capital expenditure as a percentage of revenue reached 11.5% in 2026Q1, indicating that the company must commit significant capital to maintain its aging smelting infrastructure just to keep operations running.
This level of capital intensity appears to be a structural burden that limits the company's ability to generate excess cash during periods of market volatility. The recurring need for pot re-lining and maintenance suggests that a substantial portion of cash flow is effectively pre-committed to sustaining existing capacity.
As indicated by the quarterly cash flow statements, working capital changes have been a significant drag on cash, with a $62.4 million outflow in 2026Q1 alone, highlighting the company's difficulty in managing inventory and receivables during shifting market conditions.
The frequent and large negative swings in working capital suggest that the company's cash conversion cycle is highly sensitive to fluctuations in alumina and aluminum prices. This dynamic appears to exacerbate the company's cash flow challenges, as inventory build-ups often coincide with periods of lower realized output prices.
Quick answers to the most common questions about buying CENX stock.
Century Aluminum Company (CENX) generated $183.6M in net cash from operating activities in 2025. This reflects the cash generated directly from core business operations.
Century Aluminum Company (CENX) generated $84.8M in free cash flow in 2025. Free cash flow is the cash left over after capital expenditures, which can be used to pay dividends, repurchase shares, or pay down debt.
Century Aluminum Company (CENX) spent $98.8M on capital expenditures in 2025. CapEx represents the cash invested in physical assets like property, plant, and equipment to maintain or grow the business.