Free cash flow margins have shown significant volatility, declining to 5.7% in 2026Q1 from a 19.9% peak in 2023Q4, partly due to a $210 million working capital outflow.
| 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 | 1.85B | 1.89B | 1.33B | 1.27B | 1.72B | 2.23B | 2B | 1.24B | 1.2B | 1.18B | 1.07B | 810M | 938M | 652M | 1.19B | 895.5M | 1.12B | 997.4M | 1.06B | 926.92M | 951.9M | 851.58M | 798.78M | 662.8M | 596.37M | 465.8M | 369.45M | 249.5M | 141.4M | 176.3M | -88.49M |
| Operating CF Margin % | - | 17.09% | 13.51% | 13.75% | 17.38% | 20.7% | 21.25% | 16.09% | 15.93% | 15.24% | 14.22% | 10.81% | 12.62% | 9.12% | 16.08% | 11.92% | 15.17% | 13.38% | 14.66% | 13.82% | 15.19% | 15.47% | 15.58% | 13.99% | 14.52% | 12.84% | 10.8% | 11.31% | 9.69% | 11.53% | -5.47% |
| Operating CF Growth % | 98.01% | 41.38% | 4.87% | -25.96% | -23.06% | 11.37% | 61.3% | 3.58% | 2.13% | 9.92% | 31.98% | -13.65% | 43.86% | -45.08% | 32.56% | -19.9% | 12.09% | -6.18% | 14.69% | -2.62% | 11.78% | 6.61% | 20.52% | 11.14% | 28.03% | 26.08% | 48.08% | 76.45% | -19.8% | 299.24% | - |
| Net Income | 1.02B | 1.05B | 921M | 908M | 1.01B | 2.08B | 1.5B | 906M | 788M | 824M | 696M | 753M | 592M | 883M | 592.1M | 505.7M | 757M | 766.2M | 581.5M | 339.94M | 586.42M | 546.28M | 499.19M | 436.72M | 322.15M | 162.3M | 104.95M | -1.3M | 26.9M | -22.3M | -625.96M |
| Depreciation & Amortization | 432M | 570M | 493M | 439M | 437M | 408M | 361M | 329M | 309M | 270M | 249M | 304M | 314M | 283M | 286.6M | 281.1M | 254M | 256.7M | 264.6M | 237.88M | 197.4M | 176.12M | 168.73M | 153.9M | 131.39M | 147.73M | 134.3M | 90.8M | 68.8M | 76.4M | 99.1M |
| Stock-Based Compensation | 61M | 88M | 88M | 77M | 77M | 79M | 97M | 56M | 61M | 79M | 69M | 52M | 51M | 28M | 50.3M | 71.9M | 53.9M | 75.1M | 70.6M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Deferred Taxes | 146M | 105M | 13M | -49M | 1M | -57M | 85M | 15M | 73M | 9M | 37M | 112M | 23M | 19M | 6.5M | 28.6M | -18.9M | 83.1M | 500K | -1.57M | -46.28M | 661K | 52.45M | 33.85M | 90.4M | -560K | 33.84M | -29.5M | 12.3M | -1.1M | -4.47M |
| Other Non-Cash Items | 203M | 27M | 20M | 42M | 69M | -364M | -59M | -98M | 18M | 309M | 184M | -36M | 284M | -189M | 343.2M | 519.7M | 313.8M | 345.2M | 442M | 581.88M | 322.02M | 310.66M | 323.06M | 10.79M | 284.96M | 21.61M | 269.56M | 225M | -10.7M | 100K | 780.34M |
| Working Capital Changes | -56M | 50M | -201M | -145M | 119M | 87M | 22M | 35M | -49M | -316M | -166M | -375M | -326M | -372M | -91.6M | -511.5M | -241.8M | -528.9M | -296.1M | -266.02M | -151.73M | -182.13M | -244.65M | -254.11M | -232.53M | -121.2M | -170.29M | -33.4M | -56.4M | -49.8M | -337.49M |
| Change in Receivables | -185M | -106M | -71M | -15M | 246M | 81M | -455M | -63M | -65M | -298M | -343M | -262M | -312M | -247M | -243M | -306.7M | -309.9M | -314.1M | -282.6M | 0 | 732.91M | 609.19M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Change in Inventory | 0 | 0 | 0 | 0 | 0 | -20M | 0 | 29M | 4M | 16M | 42M | -41M | -84M | -93M | 100.6M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Change in Payables | 170M | 129M | -67M | -55M | -149M | 35M | 452M | 73M | -19M | -8M | 56M | -31M | 68M | -21M | -13.2M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Cash from Investing | -668M | -631M | -2.55B | -1.06B | -543M | 21M | -772M | -411M | -801M | -805M | -152M | -362M | -1.02B | 328M | -217.1M | -1.24B | -216.5M | -195.9M | -198.9M | -1.76B | -414.4M | -1.08B | -173.7M | -417.05M | -477.21M | -296.62M | -48.02M | -1.11B | -39.7M | -35.1M | -63.67M |
| Capital Expenditures | -524M | -527M | -425M | -408M | -404M | -403M | -418M | -400M | -383M | -252M | -293M | -263M | -308M | -231M | -182.2M | -161.5M | -205.4M | -166.9M | -212.7M | -219.1M | -193.42M | -224.27M | -176.13M | -174.64M | -155.2M | -148.99M | -116.45M | -1.1B | -40.5M | -46.8M | -70.4M |
| CapEx % of Revenue | 4.65% | 4.78% | 4.31% | 4.41% | 4.09% | 3.74% | 4.43% | 5.18% | 5.09% | 3.27% | 3.9% | 3.51% | 4.14% | 3.23% | 2.47% | 2.15% | 2.79% | 2.24% | 2.93% | 3.27% | 3.09% | 4.07% | 3.44% | 3.69% | 3.78% | 4.11% | 3.4% | 49.93% | 2.78% | 3.06% | 4.36% |
| Acquisitions | -139M | -101M | -2.16B | -611M | -144M | 424M | -330M | -58M | -419M | -555M | 131M | -100M | -728M | 83M | -50.6M | -1.3B | 0 | -18.3M | -8.1M | -1.54B | -236.54M | -814.22M | 0 | -237.61M | -333.51M | -152.86M | 92.22M | 0 | 0 | 0 | 0 |
| Investments | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Other Investing | -5M | -3M | 41M | -42M | 5M | -400M | -415M | -309M | -383M | -252M | -293M | -263M | -308M | 243M | -182.2M | 166.87M | -607.82M | -166.9M | -196.53M | -13.18M | -1.3B | -41.3M | 2.42M | -4.8M | 11.5M | 2.99M | 3.63M | -4.7M | 3M | 10.4M | 6.72M |
| Cash from Financing | -979M | -1.39B | 1.08B | 160M | -1.73B | -2.54B | -1.27B | 225M | -401M | -592M | -691M | -507M | 92M | -1.11B | -822.1M | 63.5M | -986.5M | -521.1M | -777.9M | 850.22M | -479.98M | 247.04M | -706.74M | -187.57M | -144.71M | -218.33M | -177.25M | 682.8M | -60.4M | -21.5M | 157.67M |
| Debt Issued (Net) | -218M | -602M | 1.54B | 748M | -2M | -2M | -805M | 832M | 124M | 23M | 141M | -84M | 371M | -4M | -654M | 979M | -169.49M | 26.99M | -444.74M | 1.03B | -41.21M | 602.91M | -1.1M | 58.28M | -159.04M | -205.55M | -190.76M | 720.8M | -49.9M | -21.4M | 20.48M |
| Equity Issued (Net) | -354M | -371M | -151M | -275M | -1.41B | -2.2B | -325M | -353M | -322M | -465M | -590M | -164M | -54M | -1.04B | -37.9M | -935M | -701.47M | -499.99M | -223.49M | -64.73M | -370M | -291.83M | -625.46M | -227.66M | 27.03M | 24.63M | 22.15M | 3.3M | -12.9M | 0 | 0 |
| Dividends Paid | -357M | -353M | -331M | -314M | -305M | -309M | -297M | -286M | -266M | -247M | -223M | -212M | -187M | -185M | -108.1M | -64.7M | -108M | -110.2M | -78M | -77.33M | -77.14M | -69.67M | -61.39M | 0 | 0 | -8.95M | -6.9M | -100K | -100K | -100K | -1.17M |
| Share Repurchases | -450M | -450M | -151M | -275M | -1.41B | -2.2B | -325M | -353M | -322M | -465M | -590M | -224M | -132M | -1.04B | -200M | -935M | -750M | -499.99M | -254M | -145.66M | -472.32M | -390.16M | -734.58M | -257.55M | 0 | -1M | 0 | -1.1M | -13M | 0 | 0 |
| Other Financing | -50M | -62M | 23M | 1M | -17M | -30M | 160M | 32M | 63M | 97M | -19M | -58M | -38M | 120M | -130.2M | 84.55M | -44.22M | 62.07M | -109.59M | -35.65M | 8.36M | 5.63M | -18.79M | -18.19M | -12.71M | -28.46M | -1.73M | -41.2M | 2.5M | 0 | 138.36M |
| Net Change in Cash | 205M | -129M | -137M | 371M | -557M | -286M | -34M | 1.06B | -2M | -222M | 226M | -59M | 5M | -109M | 130.7M | -284.4M | -85M | 280.4M | 86.3M | 17.95M | 57.51M | 18.83M | -81.66M | 58.18M | -25.55M | -49.15M | 144.19M | -175.6M | -60.4M | -21.5M | 5.51M |
| Free Cash Flow | 1.33B | 1.36B | 909M | 864M | 1.31B | 1.83B | 1.59B | 843M | 817M | 923M | 776M | 547M | 630M | 421M | 1B | 734M | 912.6M | 830.5M | 850.4M | 707.82M | 758.47M | 627.31M | 622.65M | 488.16M | 441.18M | 316.82M | 253M | -851.5M | 100.9M | 129.5M | -158.88M |
| FCF Margin % | 11.76% | 12.32% | 9.21% | 9.34% | 13.3% | 16.96% | 16.82% | 10.91% | 10.85% | 11.97% | 10.33% | 7.3% | 8.47% | 5.89% | 13.61% | 9.77% | 12.38% | 11.14% | 11.73% | 10.56% | 12.1% | 11.4% | 12.15% | 10.3% | 10.74% | 8.73% | 7.4% | -38.61% | 6.92% | 8.47% | -9.83% |
| FCF Growth % | 25.57% | 49.5% | 5.21% | -34.25% | -28.2% | 15.31% | 88.26% | 3.18% | -11.48% | 18.94% | 41.86% | -13.17% | 49.64% | -58.11% | 36.91% | -19.57% | 9.89% | -2.34% | 20.14% | -6.68% | 20.91% | 0.75% | 27.55% | 10.65% | 39.25% | 25.22% | 129.71% | -943.9% | -22.08% | 181.51% | - |
| FCF per Share | 11.84 | 12.03 | 8.04 | 7.65 | 11.14 | 14.30 | 11.67 | 6.20 | 5.88 | 6.59 | 5.46 | 3.77 | 4.34 | 2.75 | 6.28 | 4.58 | 5.15 | 4.42 | 4.34 | 3.62 | 3.80 | 3.05 | 2.93 | 2.26 | 2.21 | 1.62 | 1.34 | -6.26 | 0.83 | 1.11 | -1.35 |
| FCF Conversion (FCF/Net Income) | 1.29x | 1.90x | 1.53x | 1.49x | 1.82x | 1.12x | 1.40x | 1.45x | 1.63x | 1.52x | 1.66x | 1.14x | 1.69x | 0.77x | 2.14x | 1.90x | 1.55x | 1.37x | 1.83x | 2.73x | 1.62x | 1.56x | 1.60x | 1.52x | 1.85x | 2.87x | 3.62x | -73.38x | 5.26x | -7.91x | 0.14x |
| Interest Paid | 157M | 0 | 262M | 134M | 156M | 159M | 0 | 0 | 0 | 159M | 148M | 172M | 170M | 167M | 163M | 162M | 139.8M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Taxes Paid | 116M | 0 | 256M | 317M | 283M | 283M | 0 | 0 | 0 | 243M | 361M | 319M | 327M | 568M | 305M | 285M | 421.86M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Reimbursement and PAMA pressure
As reported in recent financial filings, Quest Diagnostics' OCF/NI ratio has fluctuated significantly, ranging from a low of 0.79 in 2024Q1 to a high of 2.74 in 2023Q4, indicating that reported net income is frequently decoupled from the actual cash generated by core diagnostic operations.
The persistent gap between net income and operating cash flow suggests that non-cash charges and working capital volatility play a substantial role in the company's reported profitability. Investors should monitor whether this divergence stems from aggressive revenue recognition or the timing of complex multi-payer collections, as the current conversion profile appears inconsistent.
Based on the provided cash flow data, Quest Diagnostics' FCF margins have exhibited high sensitivity to seasonal and operational shifts, dropping to 5.7% in 2026Q1 from a peak of 19.9% in 2023Q4, which highlights the difficulty in maintaining consistent cash generation in a mature diagnostic market.
The sharp contraction in FCF margins suggests that the company's ability to convert revenue into free cash is increasingly pressured by rising operational costs and capital requirements. This trend warrants further investigation into whether the current margin compression is a temporary seasonal phenomenon or a structural shift in the business model.
According to quarterly cash flow statements, Quest Diagnostics experienced a significant working capital outflow of $210 million in 2026Q1, marking a sharp reversal from the $174 million inflow observed in 2023Q4 and suggesting potential inefficiencies in managing receivables or inventory levels during recent periods.
The erratic nature of these working capital swings implies that the company's cash flow is highly susceptible to the timing of insurance reimbursements and the integration of acquired hospital labs. Such volatility may indicate that the underlying billing environment remains complex and difficult to forecast with precision.
As detailed in recent financial disclosures, Quest Diagnostics has prioritized a mix of dividends and aggressive acquisition activity, including a notable $1.5 billion outlay in 2024Q3, which suggests a strategic reliance on inorganic expansion to offset the limitations of organic volume growth in the diagnostic sector.
The company's capital deployment strategy appears to be heavily dependent on debt-funded acquisitions to maintain its competitive position. While this approach may secure long-term market share, it also increases the company's sensitivity to interest rate fluctuations and the successful integration of disparate laboratory assets.
Quick answers to the most common questions about buying DGX stock.
Quest Diagnostics Incorporated (DGX) generated $1.89B in net cash from operating activities in 2025. This reflects the cash generated directly from core business operations.
Quest Diagnostics Incorporated (DGX) generated $1.36B 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.
Quest Diagnostics Incorporated (DGX) spent $527.0M 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, Quest Diagnostics Incorporated (DGX) returned $353.0M 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.