Free cash flow generation remains erratic, swinging from a $336 million peak in 2023Q4 to a $77.9 million deficit in 2025Q3, largely driven by volatile working capital shifts.
| 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 |
|---|
| Cash from Operations | 1.22B | 1.1B | 1.09B | 1.27B | 1.1B | 1.12B | 770.03M | 563.85M | 663.41M | 618.27M | 729.4M | 577.95M | 613.91M | 557.54M | 382.96M | 516.83M | 542.6M | 261.73M | 605.82M | 603.43M | 523.63M | 97.11M | 216.61M | 176.35M | 176.48M | 160.47M | 373.82M | 293.3M | 237.96M | 250.05M |
| Operating CF Margin % | - | 16.33% | 17.24% | 19.53% | 15.49% | 18.27% | 15.25% | 13.91% | 15.37% | 14.77% | 18.73% | 20.04% | 19.62% | 18.86% | 13.88% | 18.62% | 18.46% | 12.01% | 22.79% | 22.03% | 19.19% | 4.62% | 11.39% | 11% | 10.76% | 10.57% | 15.66% | 15.36% | 15.18% | 17.18% |
| Operating CF Growth % | 538.31% | 0.62% | -14.26% | 15.59% | -2.01% | 45.62% | 36.57% | -15.01% | 7.3% | -15.24% | 26.21% | -5.86% | 10.11% | 45.58% | -25.9% | -4.75% | 107.31% | -56.8% | 0.4% | 15.24% | 439.2% | -55.17% | 22.83% | -0.07% | 9.98% | -57.07% | 27.46% | 23.25% | -4.84% | - |
| Net Income | 436.12M | 376.12M | 355.54M | 359.81M | 767.04M | 645.61M | 340.5M | 122.63M | 129.56M | 264.89M | 167.3M | 60.36M | 133.89M | 111.66M | 62.9M | 93.09M | 232.15M | 156.28M | -456.69M | 219.86M | 170.08M | -136.89M | -37.54M | -52.37M | -826.76M | -450.86M | 154.15M | 76.72M | 75.46M | 43.28M |
| Depreciation & Amortization | 659.36M | 642.01M | 594.66M | 631.51M | 612.7M | 563.58M | 510.4M | 524.18M | 571.96M | 581.94M | 555.19M | 494.2M | 464.71M | 410.35M | 370.48M | 335.64M | 323.61M | 305.51M | 309.92M | 288.83M | 285.76M | 257.32M | 242.74M | 238.28M | 333.6M | 465.08M | 332.91M | 180.33M | 119.24M | 81.86M |
| Stock-Based Compensation | 0 | 0 | 18.37M | 8.28M | 13.56M | 10.97M | 8.03M | 6.91M | 5.02M | 5.14M | 3.25M | 3.85M | 3.7M | 2.97M | 2.72M | 5.01M | 3.52M | 2.58M | 4.59M | 3.95M | 373K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Deferred Taxes | 0 | 0 | -784K | 13.39M | -11.62M | 10.68M | 3.14M | 25.93M | -13.11M | -43M | -1.75M | -697K | -17.19M | -8.26M | 6.08M | -2.24M | 4.74M | -30.6M | 8.81M | -7.53M | -32K | 25.12M | -3.6M | 7.89M | 72.72M | -85.02M | -8.26M | 9.42M | 1.25M | -11.71M |
| Other Non-Cash Items | -380.81M | -37.55M | 7.72M | 20.3M | -1.52M | 14.81M | 1.42M | 10.09M | 10.5M | -112.83M | -9.52M | 3.17M | -36.43M | 926K | -2.82M | 8.96M | 13.83M | -4.66M | 643.46M | 13.96M | 44.03M | 11.19M | -8.03M | -25.15M | 503.79M | 142.59M | 32.6M | 26.85M | 11.98M | 26.05M |
| Working Capital Changes | 501.14M | 115.03M | 113.37M | 236.73M | -281.41M | -124.35M | -93.46M | -125.89M | -40.52M | -77.88M | 14.92M | 17.06M | 65.23M | 39.89M | -56.4M | 76.36M | -35.24M | -167.38M | 95.73M | 84.37M | 23.41M | -59.63M | 23.04M | -46.87M | 93.13M | 88.68M | -137.58M | -22K | 30.03M | 110.58M |
| Change in Receivables | 0 | 0 | 99.69M | 205.49M | -103.99M | -298.85M | -106.69M | -124.14M | 80.57M | -118.35M | -29.13M | 122.84M | -80.78M | -992K | -96.11M | 95.88M | -58.23M | -68.91M | 144.94M | -1.25M | 96K | 96K | -161K | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Change in Inventory | 0 | 0 | 78.97M | 233.8M | -148.14M | -190.56M | -75.5M | 10.21M | -16.31M | -54.2M | -28.4M | 27.68M | -27.82M | 38.25M | -29.88M | -6.91M | -34.88M | -20.99M | 16.7M | 15.52M | -32.25M | -38.5M | -32.08M | -23.82M | 218K | 31.37M | -23.87M | -12.06M | 23.04M | -26.61M |
| Change in Payables | 0 | 0 | -36.05M | -134.62M | 86.57M | 215.65M | 48.79M | 38.67M | -43.49M | 67.57M | 48.58M | -48.37M | 55.69M | -67.2M | 17.14M | -7.54M | 18.38M | 96.85M | -81.6M | 9.28M | 131.21M | 131.21M | -34.01M | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Cash from Investing | -1.16B | -885.04M | -800.32M | -951.91M | -1.01B | -943.88M | -638.71M | -462.49M | -537.38M | -454.83M | -589.43M | -514.36M | -694.48M | -640.49M | -514.02M | -430.53M | -444.92M | -240.88M | -371.38M | -231.3M | -314.8M | -307.01M | -393.69M | -167.1M | -54.56M | -168.22M | -1.74B | -996.73M | -163.31M | -192.76M |
| Capital Expenditures | -824.72M | -904.61M | -743.8M | -749.47M | -908.29M | -779.78M | -553.02M | -472.43M | -547.12M | -550.94M | -650.04M | -537.98M | -681.12M | -566.26M | -533.51M | -466.69M | -445.67M | -218.18M | -386.24M | -236.24M | -315.87M | -295.94M | -405.73M | -230.5M | -95.1M | -158.7M | -480.07M | -242.39M | -107.89M | -178.99M |
| CapEx % of Revenue | 11.66% | 13.49% | 11.77% | 11.52% | 12.81% | 12.7% | 10.95% | 11.66% | 12.68% | 13.16% | 16.69% | 18.65% | 21.76% | 19.15% | 19.33% | 16.81% | 15.16% | 10.01% | 14.53% | 8.62% | 11.58% | 14.09% | 21.34% | 14.37% | 5.8% | 10.46% | 20.11% | 12.69% | 6.88% | 12.3% |
| Acquisitions | 106.07M | 110.28M | 3.98M | 0 | 3.15M | 3.16M | 3.82M | 10.12M | 2.84M | -43.77M | 45.63M | 18.02M | -15.77M | -100.39M | 15.48M | 10.79M | 13.38M | -16.74M | 0 | 0 | 0 | -19.25M | -63.61M | -2.5M | -18.46M | -11.06M | -944.89M | -577.11M | -36.99M | 0 |
| Investments | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Other Investing | -477.59M | 1.24M | -31.4M | -18.45M | -68.12M | -45M | 39.77M | 1.87M | 9.74M | 139.88M | 60.61M | 5.59M | 2.42M | 26.16M | 4.01M | 25.37M | -12.64M | -5.96M | 12.4M | 4.94M | 1.08M | 8.18M | 18.63M | 23.08M | 58.14M | 1.54M | -459M | -41.64M | 121K | 1.41M |
| Cash from Financing | 73.9M | 98.7M | -260.43M | -149.21M | 55.6M | -30.1M | -333.72M | 108.25M | -40.62M | -124.89M | -112.18M | 9.64M | -80M | 280.14M | 110.03M | -58.88M | -89.86M | -49.65M | -223.63M | -208.45M | -169.23M | 47.68M | 235.18M | -8.73M | -12.05M | 114.69M | 1.37B | 573.89M | 62.02M | -16.04M |
| Debt Issued (Net) | 237.75M | 196.59M | -81.54M | -72.23M | 113.95M | 12.17M | -349.56M | 104.87M | -41.73M | -129.47M | -118.62M | 2.97M | -65.76M | 283.38M | 197.41M | 75.32M | -90.91M | -50.34M | -233.83M | -242.06M | -159.11M | 47.02M | 228.76M | -171.84M | -22.87M | 102.99M | 946.29M | 570M | -265.1M | -15.1M |
| Equity Issued (Net) | 0 | 0 | 5M | 3.56M | 5.63M | 12.79M | 17.61M | 11.4M | 1.05M | 3.12M | 8.25M | 931K | -1.58M | -466K | -80.95M | -128.37M | 0 | 693K | 10.2M | 37.05M | 4.98M | 2.8M | 6.42M | 146.95M | 11.49M | 11.7M | 419.62M | 3.9M | 360.3M | 0 |
| Dividends Paid | -102.64M | -81.95M | -178.6M | -74.69M | -55.12M | -51.21M | 0 | 0 | 0 | 0 | -548K | -246K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -33.1M | -5M |
| Share Repurchases | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -1.58M | -466K | -80.95M | -128.37M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Other Financing | -61.2M | -15.95M | -5.29M | -5.86M | -8.87M | -3.84M | -1.77M | -8.03M | 59K | 1.46M | -1.26M | -1.29M | -12.66M | -2.77M | -6.43M | -5.83M | 1.05M | 0 | 0 | -3.44M | -15.09M | -2.19M | 0 | 2.89M | -671K | 0 | 0 | 0 | -100K | 4.1M |
| Net Change in Cash | 123.82M | 311.81M | 13.7M | 158.21M | 130.88M | 129.32M | -196.34M | 210.48M | 85.2M | 47.36M | 28.15M | 73.23M | -160.5M | 197.39M | -21.58M | 29.63M | 9.59M | -28.91M | 14.25M | 165.38M | 38.12M | -165.71M | 58.91M | 2.01M | 111.19M | 106.54M | -4.53M | -129.54M | 136.67M | 41.25M |
| Free Cash Flow | 391.83M | 190.99M | 345.07M | 520.55M | 190.46M | 341.52M | 217.01M | 91.42M | 116.29M | 67.32M | 79.36M | 39.97M | -67.21M | -8.72M | -150.55M | 50.14M | 96.93M | 43.55M | 219.58M | 367.19M | 207.76M | -198.83M | -189.11M | -54.16M | 81.37M | 1.77M | -106.25M | 50.91M | 130.07M | 71.06M |
| FCF Margin % | 5.54% | 2.85% | 5.46% | 8% | 2.69% | 5.56% | 4.3% | 2.26% | 2.69% | 1.61% | 2.04% | 1.39% | -2.15% | -0.29% | -5.46% | 1.81% | 3.3% | 2% | 8.26% | 13.4% | 7.61% | -9.47% | -9.95% | -3.38% | 4.96% | 0.12% | -4.45% | 2.67% | 8.3% | 4.88% |
| FCF Growth % | 75.56% | -44.65% | -33.71% | 173.31% | -44.23% | 57.37% | 137.39% | -21.39% | 72.73% | -15.17% | 98.56% | 159.47% | -670.77% | 94.21% | -400.27% | -48.27% | 122.57% | -80.17% | -40.2% | 76.74% | 204.49% | -5.14% | -249.19% | -166.56% | 4507.76% | 101.66% | -308.71% | -60.86% | 83.04% | - |
| FCF per Share | 1.57 | 0.77 | 1.39 | 2.11 | 0.77 | 1.39 | 0.90 | 0.38 | 0.49 | 0.28 | 0.33 | 0.17 | -0.28 | -0.04 | -0.62 | 0.18 | 0.34 | 0.17 | 1.20 | 1.76 | 1.04 | -1.13 | -1.08 | -0.32 | 0.50 | 0.01 | -0.70 | 0.38 | 1.12 | 0.79 |
| FCF Conversion (FCF/Net Income) | 0.90x | 2.93x | 3.08x | 3.53x | 1.43x | 1.74x | 2.28x | 4.66x | 5.22x | 2.37x | 4.44x | 10.04x | 4.71x | 5.10x | 6.18x | 5.63x | 2.34x | 1.68x | -1.33x | 2.74x | 3.08x | -0.71x | -5.77x | 80.23x | -0.21x | -0.36x | 2.43x | 3.82x | 3.15x | 5.78x |
| Interest Paid | 0 | 0 | 60.26M | 54.31M | 54.35M | 46.93M | 61.3M | 65.99M | 77.58M | 83.81M | 86.78M | 96.23M | 100.65M | 100.58M | 86.14M | 81.28M | -96.64M | 116.22M | 121.3M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Taxes Paid | 0 | 0 | 82.62M | 90.46M | 97.33M | 24.01M | 43.4M | 44.49M | 63.08M | 61.88M | 32.17M | 35.08M | 37.31M | 18.32M | 8.2M | 16.38M | -5.91M | 11.99M | 22M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
High Fixed Cost Sensitivity
According to quarterly cash flow data, Amkor consistently reports operating cash flow significantly higher than net income, with OCF/NI ratios frequently exceeding 3.0x, suggesting that non-cash depreciation charges and working capital fluctuations play a dominant role in the company's reported cash generation profile.
The persistent gap between net income and operating cash flow indicates that reported earnings are heavily influenced by substantial depreciation of the company's capital-intensive assembly infrastructure. Investors should monitor whether this divergence reflects genuine operational efficiency or merely the accounting treatment of high-cost equipment cycles.
As reported in financial statements, Amkor's free cash flow trajectory remains highly erratic, swinging from a peak of $336 million in 2023Q4 to a deficit of $77.9 million in 2025Q3, reflecting the company's sensitivity to cyclical capital expenditure requirements and fluctuating end-market demand.
The inability to maintain consistent positive free cash flow suggests that the company's capital-intensive business model is vulnerable to sudden shifts in utilization rates. This volatility warrants further investigation into whether management can optimize its investment cycle to better align with the inherent seasonality of the semiconductor industry.
Based on the provided figures, Amkor's capital expenditure intensity is significant, with CapEx/Revenue ratios reaching as high as 22.9% in 2025Q4, indicating that the company must continuously reinvest heavily in its manufacturing footprint to remain competitive in the advanced packaging market.
The high level of capital spending appears necessary to maintain technological relevance, yet it frequently consumes the majority of operating cash flow. This structural requirement for constant reinvestment may limit the company's ability to return capital to shareholders or pursue aggressive inorganic growth strategies.
Data from recent filings reveals that working capital changes are a primary driver of quarterly cash flow volatility, with swings as large as $343.7 million in 2025Q4, suggesting that inventory and receivables management are highly sensitive to the company's quarterly production and shipping cycles.
The significant fluctuations in working capital suggest that Amkor's cash position is highly dependent on the timing of customer payments and inventory build-ups related to product launches. This reliance on working capital management may indicate that the company's underlying cash flow is less stable than it appears on a consolidated basis.
Quick answers to the most common questions about buying AMKR stock.
Amkor Technology, Inc. (AMKR) generated $1.10B in net cash from operating activities in 2025. This reflects the cash generated directly from core business operations.
Amkor Technology, Inc. (AMKR) generated $191.0M 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.
Amkor Technology, Inc. (AMKR) spent $904.6M on capital expenditures in 2025. CapEx represents the cash invested in physical assets like property, plant, and equipment to maintain or grow the business.
In 2025, Amkor Technology, Inc. (AMKR) returned $81.9M to shareholders via cash dividends. This shows the company's commitment to returning capital to its equity investors.