Free cash flow margins have faced significant pressure, shifting from a 52.2% peak in 2024Q2 to negative territory in 2025Q4 as capital expenditure spiked to 35.5% of revenue.
| 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 |
|---|
| Cash from Operations | 8.6B | 12.86B | 15.57B | 13.45B | 13.46B | 10.26B | 2.94B | 8.5B | 7.45B | 5.89B | 4.46B | 3.51B | 2.65B | 2.3B | 2.74B | 2.17B | 1.85B | 1.37B | 1.56B | 1.62B | 1.03B | 1.24B | 1.12B | 656.58M | 561.2M | 637.64M | 711.66M |
| Operating CF Margin % | - | 34.53% | 49.68% | 52.07% | 53.17% | 54.64% | 23.27% | 50.54% | 48.31% | 47.06% | 45.76% | 39.02% | 45.03% | 42.29% | 53.44% | 47.48% | 43.61% | 43.63% | 49.08% | 58.24% | 46.08% | 60% | 56.82% | 44.77% | 45.24% | 54.77% | 61.44% |
| Operating CF Growth % | -171.46% | -17.4% | 15.77% | -0.1% | 31.14% | 249.43% | -65.45% | 14.19% | 26.42% | 31.96% | 27.17% | 32.57% | 14.94% | -15.81% | 26% | 17.54% | 35.22% | -12.16% | -4.16% | 57.29% | -16.69% | 10.28% | 71.01% | 16.99% | -11.99% | -10.4% | - |
| Net Income | 9.83B | 10.49B | 13.55B | 14.62B | 14.08B | 8.13B | 2.86B | 7.66B | 6.92B | 8.39B | 5.03B | 4.01B | 3.08B | 2.75B | 2.58B | 1.59B | 1.75B | 1.34B | 1.55B | 522.36M | 543.77M | 564.82M | 624.98M | 294.38M | 232.52M | 644.33M | 209.44M |
| Depreciation & Amortization | 2.55B | 3.26B | 2.32B | 2.07B | 2.06B | 1.99B | 1.93B | 1.84B | 1.76B | 5.89B | 529.66M | 469M | 454.26M | 418.27M | 401.55M | 382.74M | 379.21M | 629.51M | 601.51M | 540.82M | 487.79M | 434.08M | 399.55M | 354.63M | 335.1M | 302.94M | -290.3M |
| Stock-Based Compensation | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Deferred Taxes | -55.52M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 80.89M | 279.43M | 214.33M | 132.69M | 186.91M | 120.87M | 0 | 173.18M |
| Other Non-Cash Items | -588.88M | -1.25B | 119.02M | -3.14B | -1.7B | -289.14M | -941.21M | -1.43B | -1.12B | -8.87B | -1.5B | -1.29B | -1.3B | -770.54M | -639.93M | 486.34M | -54.44M | -70.56M | -177.18M | 376.19M | -15.65M | -1.66M | -18.03M | -27.19M | -47.67M | -404.38M | 580.62M |
| Working Capital Changes | -1.14B | 359.43M | -427.67M | -102.81M | -981.26M | 432.94M | -912.11M | 430.58M | -111.92M | 486.82M | 403.99M | 316.23M | 410.85M | -90.81M | 389.56M | -290.15M | -227.63M | -534.96M | -417.4M | 102.37M | -263.71M | 26.71M | -16.37M | -152.15M | -79.61M | 94.75M | 38.71M |
| Change in Receivables | -721.82M | 359.43M | -427.67M | 137.99M | -946.89M | -760.5M | -452.64M | 96.87M | -122.77M | -51.16M | -45.26M | 30.19M | 17.6M | -23.17M | 17.86M | -72.14M | -14.79M | -15.84M | -81.78M | -35.02M | -66.13M | 56.72M | -32.97M | 2.34M | -29.71M | -29.79M | 16.74M |
| Change in Inventory | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8.19M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Change in Payables | -620.86M | 0 | 0 | -240.79M | 652.38M | 1.5B | -331.12M | 333.71M | -45.53M | 165.76M | 113.9M | 16.34M | 21.4M | -3.84M | -129.42M | 0 | 0 | 0 | 0 | 68.69M | 0 | 171.81M | 49.72M | 7.61M | 1.14M | -10.69M | 4.34M |
| Cash from Investing | -9.42B | -10.46B | -2.75B | -2.45B | -3.79B | -3.41B | -2.88B | -2.39B | -1.27B | -5.02B | -1.37B | -2.75B | -1.03B | -3.31B | -539.01M | -691.17M | -665.46M | -608.53M | -796.09M | -665.16M | -1.09B | -632.21M | -489.58M | -334.47M | -265.07M | -343.34M | -211.29M |
| Capital Expenditures | -5.94B | -7.81B | -4.39B | -1.37B | -2.78B | -3.68B | -3.33B | -2.61B | -1.64B | -1.47B | -1.81B | -2.91B | -1.16B | -615.85M | -631.08M | -757.89M | -336.2M | -780.92M | -935.77M | 0 | -1.09B | -632.21M | -411.95M | -334.47M | -265.07M | -343.34M | -211.29M |
| CapEx % of Revenue | 15.86% | 20.97% | 14.03% | 5.31% | 10.97% | 19.57% | 26.37% | 15.54% | 10.62% | 11.76% | 18.6% | 32.31% | 19.67% | 11.31% | 12.33% | 16.57% | 7.94% | 24.94% | 29.53% | - | 48.64% | 30.63% | 20.85% | 22.81% | 21.37% | 29.49% | 18.24% |
| Acquisitions | -5.57B | -5.57B | 0 | -299.08M | 0 | 0 | -10.56M | 0 | -206.38M | -4.77B | 0 | 0 | 0 | -1.51B | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Investments | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Other Investing | 3.68B | 2.93B | 1.36B | 1.04B | -1.02B | 264.92M | 463.12M | 224.69M | 567.8M | 1.22B | 447.79M | 155.72M | 121.37M | -1.18B | 92.08M | 66.73M | 109.86M | -129.98M | 139.68M | -665.16M | 0 | 0 | -77.63M | 0 | 0 | 0 | 0 |
| Cash from Financing | -4.94B | -10.28B | -8.92B | -9.32B | -4.83B | -3.31B | -1.14B | -4.43B | -6.26B | 93.25M | -1.68B | -1.53B | -16.66M | -1.05M | -1.46B | -1.39B | -700.34M | -1.53B | -951.26M | -320.12M | -296.71M | -274.57M | -217.16M | -128.32M | -728.18M | 0 | -295.3M |
| Debt Issued (Net) | 15.28B | 15.63B | -768.96M | -1.68B | 2.22B | -6.51M | -199.32M | -363.11M | -3.09B | 2.56B | 0 | 0 | -16.67M | 2.52B | -381.11M | -193.33M | -574.62M | -54.55M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Equity Issued (Net) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dividends Paid | -28.76B | -24B | -6.28B | -5.98B | -4.51B | -2.46B | 0 | -3B | -2.03B | -1.85B | -1.68B | -1.53B | 0 | -2.52B | -1.08B | -900M | -750M | -2.08B | -600M | -231.25M | -210.66M | -192.2M | -176.72M | -155.97M | -469.31M | 0 | 0 |
| Share Repurchases | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Other Financing | 8.54B | -1.91B | -1.87B | -1.66B | -2.54B | -840.61M | -942.99M | -1.06B | -1.35B | -628.22M | -106.87M | -97.02M | -81.81M | -76.29M | -22.36M | -39.42M | 624.28M | 408.87M | -351.26M | -88.87M | -86.05M | -82.37M | -40.44M | 27.64M | -258.87M | 0 | -308.51M |
| Net Change in Cash | -7.57B | -8.97B | 6.21B | 697.91M | 4.4B | 3.58B | -1B | 1.61B | -92.95M | 963.41M | 1.41B | -771.2M | 1.6B | -1.01B | 735.76M | 86.79M | 481.48M | -772.11M | -192.19M | 637.34M | -354.06M | 331.5M | 416.08M | 193.78M | -432.05M | 294.3M | 205.07M |
| Free Cash Flow | 48.6M | 5.05B | 11.17B | 12.07B | 10.68B | 6.59B | -391.42M | 5.89B | 5.81B | 4.42B | 2.65B | 603.08M | 1.49B | 1.69B | 2.1B | 1.41B | 1.51B | 585.18M | 619.4M | 1.62B | -57.35M | 606.07M | 710.86M | 322.11M | 296.13M | 294.3M | 500.36M |
| FCF Margin % | 0.13% | 13.56% | 35.65% | 46.76% | 42.2% | 35.06% | -3.1% | 35% | 37.69% | 35.3% | 27.16% | 6.7% | 25.36% | 30.98% | 41.11% | 30.91% | 35.68% | 18.69% | 19.55% | 58.24% | -2.56% | 29.37% | 35.98% | 21.96% | 23.87% | 25.28% | 43.2% |
| FCF Growth % | -99.57% | -54.79% | -7.48% | 13.02% | 62.2% | 1782.72% | -106.65% | 1.34% | 31.48% | 66.8% | 339.19% | -59.55% | -11.63% | -19.83% | 48.92% | -6.46% | 158.22% | -5.52% | -61.83% | 2929.14% | -109.46% | -14.74% | 120.69% | 8.77% | 0.62% | -41.18% | - |
| FCF per Share | 1.62 | 168.33 | 372.38 | 402.47 | 356.10 | 219.55 | -13.05 | 196.23 | 193.63 | 147.28 | 88.31 | 20.10 | 49.70 | 56.25 | 70.16 | 47.11 | 50.37 | 19.51 | 20.03 | 54.09 | -1.91 | 20.23 | 23.72 | 16.11 | 14.81 | 14.71 | 25.02 |
| FCF Conversion (FCF/Net Income) | 0.00x | 1.23x | 1.15x | 1.32x | 1.35x | 1.72x | 1.49x | 1.56x | 1.49x | 1.01x | 1.23x | 1.20x | 1.16x | 1.00x | 1.32x | 1.36x | 1.45x | 1.71x | 1.48x | 3.11x | 1.95x | 2.20x | 1.85x | 2.38x | 2.55x | 2.52x | 3.40x |
| Interest Paid | 134.85M | 0 | 938.15M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Taxes Paid | -2.03B | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Regulatory and Concession Uncertainty
As reported in financial statements, ASR's operating cash flow to net income ratio has fluctuated significantly, ranging from a low of 0.11 in 2025Q3 to a high of 1.31 in 2024Q4, indicating that accounting accruals and non-cash items frequently decouple reported earnings from actual cash generation.
The wide variance in the OCF/NI ratio suggests that investors should exercise caution when relying on net income as a proxy for liquidity. This disconnect appears driven by the timing of infrastructure-related cash outflows and working capital swings, which often obscure the underlying cash-generating capacity of the airport concessions.
Based on recent quarterly filings, ASR's free cash flow margins have shown a marked decline, dropping from a peak of 52.2% in 2024Q2 to negative territory in 2025Q4, which suggests that rising capital intensity is increasingly consuming the cash generated by core airport operations.
The trajectory of FCF indicates that the company is entering a phase of heavier capital deployment, likely tied to mandatory infrastructure improvements. This trend warrants further investigation into whether these investments will yield commensurate returns or if they represent a permanent increase in the cost of maintaining the concession.
According to the provided data, ASR's capital expenditure as a percentage of revenue spiked to 35.5% in 2025Q4, a significant increase from the 2.5% observed in 2024Q1, reflecting a shift toward aggressive infrastructure spending that deviates from the company's historical maintenance-focused capital allocation strategy.
This surge in capital intensity appears to be a primary driver of the recent FCF volatility. Analysts should monitor whether this elevated spending is a temporary requirement under the Master Development Plan or a structural shift that may permanently lower the company's free cash flow conversion profile.
As evidenced by quarterly cash flow statements, ASR has experienced substantial swings in working capital, including a notable $1.5 billion outflow in 2025Q4, which suggests that the timing of collections and payables is highly sensitive to the company's large-scale infrastructure project cycles.
The erratic nature of these working capital changes complicates the assessment of normalized cash flow. Investors should monitor these fluctuations closely, as they may mask underlying operational inefficiencies or reflect the impact of large, lumpy payments associated with the company's extensive construction obligations.
Quick answers to the most common questions about buying ASR stock.
Grupo Aeroportuario del Sureste, S. A. B. de C. V. (ASR) generated $12.86B in net cash from operating activities in 2025. This reflects the cash generated directly from core business operations.
Grupo Aeroportuario del Sureste, S. A. B. de C. V. (ASR) generated $5.05B 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.
Grupo Aeroportuario del Sureste, S. A. B. de C. V. (ASR) spent $7.81B 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, Grupo Aeroportuario del Sureste, S. A. B. de C. V. (ASR) returned $24.00B to shareholders via cash dividends. This shows the company's commitment to returning capital to its equity investors.