Cash flow conversion remains erratic, as evidenced by an OCF/NI ratio that swung from 0.15 in 2026Q1 to 2.33 in 2024Q4, largely impacted by heavy capital deployment and acquisition activity.
| 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 | 1.79B | 1.78B | 1.46B | 1.53B | 991M | 1.14B | 1.05B | 966.1M | 705.1M | 657.6M | 688.94M | 580.6M | 381.66M | 308.95M | 222.69M | 259.09M | 269.81M | 318.37M | 345.63M | 395.57M | 338.19M | 317.78M | 266.84M | 277.17M | 203.56M | 252.94M | 212.88M | 223.7M | 222.6M | 195.6M | 134.9M |
| Operating CF Margin % | - | 27.28% | 22.32% | 22.55% | 16.09% | 21.01% | 22.2% | 20.39% | 16.61% | 16.58% | 18.04% | 16.4% | 12.9% | 14.33% | 10.96% | 15.12% | 16.32% | 18.7% | 16.33% | 18.02% | 15.44% | 16.09% | 15.51% | 17.03% | 12.81% | 15.86% | 14.03% | 15.6% | 18.53% | 21.71% | 18.69% |
| Operating CF Growth % | 38587.65% | 22.34% | -4.52% | 54.19% | -12.89% | 8.34% | 8.69% | 37.02% | 7.22% | -4.55% | 18.66% | 52.13% | 23.53% | 38.74% | -14.05% | -3.97% | -15.25% | -7.89% | -12.62% | 16.97% | 6.42% | 19.09% | -3.73% | 36.16% | -19.52% | 18.82% | -4.84% | 0.49% | 13.8% | 45% | 4.9% |
| Net Income | 2.53B | 1.14B | 2B | 1.17B | 867M | 702.8M | 721.1M | 612M | 470.4M | 713.4M | 425.44M | 288.94M | 154.29M | 119.43M | 85.53M | 83.57M | 98.66M | 88.16M | 179.75M | 262.75M | 245.42M | 192.67M | 129.16M | 100.5M | 86.31M | 105.36M | 112.03M | 125.78M | 115.61M | 98.5M | 78.6M |
| Depreciation & Amortization | 650M | 637M | 573M | 507.3M | 499.4M | 446.4M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 175.37M | 166.49M | 145.85M | 141.43M | 138.25M | 132.86M | 139.61M | 138.7M | 154.63M | 136.37M | 124.75M | 98.77M | 79.7M | 61.2M |
| Stock-Based Compensation | 46M | 46M | 58M | 50M | 43M | 43M | 30M | 34.1M | 29.3M | 30.5M | 20.48M | 13.59M | 8.99M | 7.01M | 7.78M | 11.52M | 14.68M | 20.55M | 21.86M | 19.69M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Deferred Taxes | -3M | 0 | -45M | -36M | -1M | 92.2M | 43.8M | 29.4M | 85.1M | -239.1M | 67.05M | 85.22M | 50.29M | 24.11M | 13.93M | 11.32M | 935K | 8.69M | 23.85M | 8.74M | 17.16M | 5.71M | 38.54M | 16.65M | 24.49M | 14.36M | 9.46M | -3.3M | -3.5M | 7.1M | 100K |
| Other Non-Cash Items | -1.9B | 57M | -1.33B | -12.3M | -201.4M | -31.3M | 322.6M | 377M | 312.7M | 264.4M | 267.64M | 271.71M | 172.74M | 168.7M | 177.55M | 159.51M | 180.38M | 4.57M | -26.97M | -37.77M | -16.86M | 899K | -19.1M | -4.7M | -11.52M | -12.68M | -2.33M | -6.24M | -4.48M | -3.6M | -4.1M |
| Working Capital Changes | 463M | -92M | 211M | -151M | -216M | -115.4M | -67.4M | -86.4M | -192.4M | -111.6M | -91.67M | -78.86M | -4.66M | -10.3M | -62.1M | -6.84M | -24.85M | 21.03M | -19.35M | -3.69M | -48.95M | -19.74M | -14.63M | 25.11M | -34.41M | -8.73M | -42.65M | -17.3M | 16.2M | 13.9M | -900K |
| Change in Receivables | -42M | -51M | 81M | 31M | -12M | -194.4M | 6.1M | -50.4M | -10.6M | -29.3M | -25.07M | 12.31M | -16.65M | -22.52M | -20.3M | -19.38M | -20.55M | 48.52M | 34.24M | -3.31M | -17.39M | -5.42M | 11.93M | -1.89M | -11.23M | -10.53M | -13.09M | -31.5M | -9.7M | -2.9M | -12.1M |
| Change in Inventory | 5M | -30M | -52M | -189M | -132M | 73.2M | -19.3M | -27.7M | -22M | -79M | -47.38M | -21.52M | -12.02M | -11.64M | -9.64M | -5.11M | 1.24M | -12.53M | -25.18M | -31.51M | -33.68M | -10.95M | 786K | 18.04M | -14.33M | -7.81M | 0 | 0 | 0 | 0 | 0 |
| Change in Payables | 32M | 21M | 17M | -17M | -31M | 109.8M | -34M | 25.9M | 20.1M | -17.9M | -8.12M | -40.05M | 5.3M | 20.06M | -8.67M | 30.39M | 8.22M | -10.45M | -24.41M | 1.49M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Cash from Investing | -1.03B | -1.59B | -2.44B | 459M | -484M | -3.47B | -409.7M | -385.9M | -1.95B | -386.1M | -555.02M | 88.55M | -49.33M | -214.55M | -143.21M | -238.92M | -174.18M | -185.03M | -450.76M | -256.03M | -213.42M | -213.87M | -123.33M | -99.78M | -102.92M | -370.19M | -201.81M | -214.6M | -505.8M | -333.4M | -11.4M |
| Capital Expenditures | -760M | -807M | -855M | -650M | -482M | -423.1M | -359.7M | -393.5M | -376M | -410.3M | -387.27M | -318.23M | -232.18M | -155.23M | -151.02M | -155.36M | -135.92M | -139.23M | -258.25M | -264.92M | -265.98M | -221.4M | -163.44M | -120.64M | -152.68M | -194.39M | -170.81M | -214.9M | -471.8M | -365.5M | -83.2M |
| CapEx % of Revenue | 11.6% | 12.33% | 13.08% | 9.59% | 7.82% | 7.81% | 7.6% | 8.3% | 8.86% | 10.35% | 10.14% | 8.99% | 7.85% | 7.2% | 7.43% | 9.07% | 8.22% | 8.18% | 12.2% | 12.07% | 12.14% | 11.21% | 9.5% | 7.41% | 9.61% | 12.19% | 11.26% | 14.99% | 39.27% | 40.57% | 11.53% |
| Acquisitions | -647M | -685M | -1.6B | 400M | 698M | -3.07B | 77.2M | 8.4M | -1.57B | 23.9M | -168.05M | 406.78M | 182.86M | -55.91M | 9.81M | -83.56M | -38.27M | -49.59M | -218.54M | -12.21M | -3.04M | -4.65M | -5.57M | -8.62M | -47.97M | -221.77M | -39.33M | 0 | 0 | 0 | 0 |
| Investments | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Other Investing | 374M | -96M | 10M | 701.6M | -707.5M | 0 | -16M | -1.4M | 0 | 0 | 0 | 0 | 0 | -3.4M | -2M | 0 | 0 | 7.79M | 26.03M | 21.11M | 30.59M | 37.18M | 45.69M | 29.48M | 97.73M | 45.97M | 8.33M | 300K | -34M | 32.1M | 71.8M |
| Cash from Financing | -589M | -800M | 373M | -1.06B | -407M | 2.29B | -357M | -604.1M | -158.4M | 1.12B | -252.29M | -609.39M | -266.12M | -77.36M | -80.11M | -64.47M | -288.89M | 92.46M | 122.88M | -151.78M | -169.23M | -188.79M | -107.03M | -66.76M | -109.74M | 130.42M | -19.25M | -20.3M | 279.2M | 160.7M | -124.9M |
| Debt Issued (Net) | -144M | -118M | 1.05B | -717M | -69M | 2.47B | -152.5M | -361.1M | 86.4M | 1.34B | 97.09M | -11.27M | -193.97M | -14.2M | -12.65M | 22.43M | -219.6M | -109.08M | 218.95M | 415.09M | 1.07M | -2.85M | -2.8M | -33.41M | -82.1M | 154.73M | 3.95M | 14.7M | 302.3M | 183.5M | -103.7M |
| Equity Issued (Net) | -202M | -450M | -450M | -150M | -150M | 0 | -64.5M | -126.3M | -112.3M | -111.8M | -268.95M | -527.56M | 39.71M | 11.69M | 6.96M | 1.47M | 3.05M | 294.18M | -20.75M | -536.54M | -141.35M | -145.52M | -67.72M | -12.22M | 640K | 2.62M | 2.04M | -10.7M | 1.9M | 200K | 0 |
| Dividends Paid | -199M | -197M | -189M | -174M | -160M | -147.8M | -140.3M | -129.8M | -116.4M | -108.9M | -105.04M | -107.46M | -91.3M | -74.2M | -73.77M | -73.65M | -73.55M | -71.18M | -62.51M | -53.61M | -46.42M | -39.95M | -36.51M | -33.71M | -28.28M | -26.93M | -25.25M | -24.3M | -23.2M | -22.1M | -21.2M |
| Share Repurchases | -202M | -450M | -450M | -150M | -150M | 0 | -64.5M | -126.3M | -112.3M | -111.8M | -268.95M | -527.56M | 0 | 0 | 0 | 0 | 0 | 0 | -24.02M | -551.16M | -172.89M | -178.79M | -71.51M | -13.25M | 0 | 0 | 0 | -12.7M | 0 | 0 | 0 |
| Other Financing | -44M | -35M | -36M | -23M | -28M | -26.3M | 300K | 13.1M | -16.1M | 5.3M | 24.6M | 36.91M | -20.55M | -656K | -644K | -14.72M | 1.21M | -21.46M | -12.81M | 23.28M | 17.47M | -467K | 0 | 12.58M | 0 | 0 | 0 | 0 | -1.8M | -900K | 0 |
| Net Change in Cash | 172M | -603M | -612M | 923M | 100M | -45.5M | 283.4M | -23.9M | -1.4B | 1.4B | -118.37M | 59.76M | 66.21M | 17.04M | -628K | -44.3M | -193.27M | 225.8M | 17.76M | -12.24M | -44.46M | -84.88M | 36.49M | 110.64M | -9.1M | 13.18M | -8.18M | -11.2M | -4.1M | 23M | 2.9M |
| Free Cash Flow | 1.03B | 978M | 604M | 878M | 509M | 714.6M | 690.4M | 572.6M | 329.1M | 247.3M | 301.67M | 262.37M | 149.47M | 153.72M | 71.67M | 103.73M | 133.89M | 179.14M | 87.39M | 130.65M | 72.22M | 96.38M | 103.4M | 156.53M | 50.88M | 58.56M | 42.08M | 8.8M | -249.2M | -169.9M | 51.7M |
| FCF Margin % | 15.78% | 14.95% | 9.24% | 12.96% | 8.26% | 13.2% | 14.6% | 12.08% | 7.75% | 6.24% | 7.9% | 7.41% | 5.05% | 7.13% | 3.53% | 6.05% | 8.1% | 10.52% | 4.13% | 5.95% | 3.3% | 4.88% | 6.01% | 9.62% | 3.2% | 3.67% | 2.77% | 0.61% | -20.74% | -18.86% | 7.16% |
| FCF Growth % | 67.59% | 61.92% | -31.21% | 72.5% | -28.77% | 3.51% | 20.57% | 73.99% | 33.08% | -18.02% | 14.98% | 75.53% | -2.76% | 114.49% | -30.91% | -22.53% | -25.26% | 104.99% | -33.11% | 80.91% | -25.07% | -6.78% | -33.95% | 207.65% | -13.11% | 39.17% | 378.13% | 103.53% | -46.67% | -428.63% | 150.64% |
| FCF per Share | 17.12 | 16.17 | 9.81 | 14.14 | 8.14 | 11.42 | 11.06 | 9.13 | 5.22 | 3.91 | 4.72 | 3.91 | 2.62 | 3.32 | 1.56 | 2.27 | 2.93 | 4.05 | 2.10 | 3.01 | 1.56 | 2.04 | 2.13 | 3.19 | 1.04 | 1.22 | 0.90 | 0.19 | -5.34 | -3.67 | 1.12 |
| FCF Conversion (FCF/Net Income) | 0.41x | 1.57x | 0.73x | 1.31x | 1.14x | 1.62x | 1.46x | 1.58x | 1.50x | 0.92x | 1.62x | 2.01x | 2.45x | 2.55x | 2.64x | 3.15x | 2.78x | 3.73x | 1.96x | 1.51x | 1.38x | 1.65x | 2.07x | 2.96x | 2.36x | 2.40x | 1.90x | 1.78x | 1.93x | 1.99x | 1.72x |
| Interest Paid | 118M | 0 | 158M | 159M | 165M | 104.9M | 0 | 0 | 0 | 0 | 73.66M | 71.01M | 81.3M | 52.03M | 53.04M | 60.74M | 68.14M | 72.03M | 75.62M | 64.03M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Taxes Paid | 161M | 0 | 382M | 292M | 201M | 102.9M | 0 | 0 | 0 | 0 | 124.34M | 46.77M | 45.95M | 23.49M | 12.83M | 13.89M | 19.66M | 17.09M | 54.83M | 69.74M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Cyclical Volume Sensitivity
According to reported financial statements, the OCF/NI ratio for Martin Marietta Materials has fluctuated wildly, ranging from 0.15 in 2026Q1 to 2.33 in 2024Q4, indicating that net income is an unreliable proxy for the actual cash-generating capacity of the company's core industrial operations.
The significant divergence between net income and operating cash flow suggests that non-cash items or non-operating gains are frequently distorting the bottom line. Investors should monitor whether these discrepancies stem from aggressive accounting for mineral depletion or the timing of tax-related cash outflows.
As evidenced by historical data, FCF margins have swung from a negative 7.8% in 2024Q2 to a peak of 27.8% in 2024Q4, highlighting a highly inconsistent cash trajectory that appears sensitive to both seasonal construction cycles and the timing of large-scale capital expenditures.
This volatility suggests that the company's ability to generate surplus cash is not yet a stable feature of its business model. The frequent dips into negative free cash flow territory warrant further investigation into whether these are temporary timing issues or structural weaknesses in cash conversion.
Based on reported figures, Martin Marietta Materials maintains a high capital intensity, with CapEx/Revenue ratios frequently exceeding 13%, which suggests that the company must continuously reinvest a substantial portion of its top-line revenue just to maintain its existing quarry and distribution infrastructure.
The persistent level of capital spending indicates that the company's localized monopoly is expensive to defend. Analysts should evaluate whether this high maintenance burden limits the company's flexibility to navigate periods of reduced demand without sacrificing its long-term asset base.
As reported in recent filings, working capital changes have been highly erratic, swinging from a $453 million outflow in 2024Q2 to a $362 million inflow in 2024Q1, which suggests that the company's cash flow is heavily influenced by the timing of inventory management and receivables collection.
These dramatic shifts in working capital appear to be a primary driver of the company's inconsistent quarterly cash flow performance. Investors should monitor whether these fluctuations are indicative of supply chain inefficiencies or the inherent difficulty in managing inventory across a geographically dispersed network of quarries.
Based on the provided financial data, Martin Marietta Materials has prioritized significant capital deployment toward acquisitions, including a $2 billion outlay in 2024Q2, which appears to have left the company with a relatively thin cash cushion of only $67 million as of the latest reporting.
This strategy of aggressive consolidation suggests that management is betting heavily on future market share gains to justify current cash outflows. The reliance on external financing or future cash flows to support this growth path may increase the company's vulnerability if construction demand softens unexpectedly.
Quick answers to the most common questions about buying MLM stock.
Martin Marietta Materials, Inc. (MLM) generated $1.78B in net cash from operating activities in 2025. This reflects the cash generated directly from core business operations.
Martin Marietta Materials, Inc. (MLM) generated $978.0M 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.
Martin Marietta Materials, Inc. (MLM) spent $807.0M 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, Martin Marietta Materials, Inc. (MLM) returned $197.0M to shareholders via cash dividends and spent $450.0M on share repurchases. This shows the company's commitment to returning capital to its equity investors.