Free cash flow was $868M in 2026Q3 (16.9% margin), yet quarterly operating cash flow ranged from $348M to $1.5B and net acquisition outflows absorbed much of discretionary cash, reducing cash available for shareholder returns.
Boston Scientific Corporation (BSX) cash flow statement — 30-year operating, investing & financing cash flows
| 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 | 4.23B | 4.53B | 3.44B | 2.5B | 1.53B | 1.87B | 1.51B | 1.84B | 310M | 1.43B | 972M | 600M | 1.27B | 1.08B | 1.26B | 1.01B | 325M | 835M | 1.22B | 934M | 1.84B | 903M | 1.8B | 787M | 736M | 490M | 739M | 727M | 258.5M | 80.5M | 134.3M |
| Operating CF Margin % | - | 22.59% | 20.51% | 17.58% | 12.03% | 15.74% | 15.21% | 17.1% | 3.16% | 15.76% | 11.59% | 8.02% | 17.2% | 15.15% | 17.38% | 13.22% | 4.16% | 10.2% | 15.11% | 11.18% | 23.59% | 14.37% | 32.08% | 22.64% | 25.21% | 18.33% | 27.74% | 25.58% | 11.57% | 4.3% | 9.19% |
| Operating CF Growth % | -49.34% | 31.99% | 37.24% | 64.02% | -18.44% | 24.07% | -17.86% | 492.26% | -78.26% | 46.71% | 62% | -52.72% | 17.28% | -14.13% | 25% | 210.15% | -61.08% | -31.33% | 30.19% | -49.38% | 104.32% | -49.94% | 129.22% | 6.93% | 50.2% | -33.69% | 1.65% | 181.24% | 221.12% | -40.06% | 437.2% |
| Net Income | 3.49B | 2.89B | 1.85B | 1.59B | 698M | 1.04B | -82M | 4.7B | 1.67B | 104M | 347M | -239M | -119M | -121M | -4.07B | 441M | -1.06B | -1.02B | -2.04B | -495M | -3.58B | 628M | 1.06B | 472M | 373M | -54M | 373M | 371M | -264.4M | 160.4M | 167.1M |
| Depreciation & Amortization | 1.43B | 1.37B | 1.27B | 1.2B | 1.14B | 1.09B | 1.12B | 1.01B | 894M | 844M | 815M | 769M | 725M | 689M | 683M | 717M | 816M | 834M | 864M | 939M | 781M | 314M | 275M | 196M | 161M | 232M | 181M | 178M | 128.6M | 86.7M | 61.4M |
| Stock-Based Compensation | 159M | 299M | 266M | 233M | 220M | 194M | 170M | 157M | 140M | 127M | 116M | 107M | 103M | 105M | 108M | 128M | 150M | 144M | 138M | 122M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Deferred Taxes | -268M | -2M | -70M | -1M | -63M | -124M | -82M | -4.3B | -87M | 245M | -305M | -532M | -397M | -223M | -166M | 46M | -110M | -64M | -334M | -386M | -420M | 4M | 30M | -31M | 142M | 8M | 2M | -29M | -151.4M | -52.2M | -12.4M |
| Other Non-Cash Items | 198M | 223M | 586M | 253M | 540M | 18M | 337M | 551M | -148M | 40M | 3M | 215M | -5M | 477M | 4.42B | -87M | 1.91B | 24M | 2.66B | 712M | 4.71B | 313M | 274M | 173M | 96M | 172M | 5M | 47M | 639.2M | 2.4M | 55.2M |
| Working Capital Changes | -784M | -246M | -462M | -770M | -1B | -351M | 42M | -282M | -2.16B | 66M | -4M | 280M | 962M | 155M | 284M | -237M | -1.37B | 922M | -77M | 42M | 355M | -367M | 173M | -23M | -36M | 13M | 178M | 209M | -93.5M | -145.7M | -142.6M |
| Change in Receivables | -330M | -269M | -351M | -238M | -220M | -279M | 335M | -130M | -110M | -30M | -216M | -17M | 53M | -101M | 37M | 42M | 52M | 1M | 96M | -72M | 64M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Change in Inventory | -446M | -188M | -228M | -660M | -321M | -346M | -65M | -290M | -83M | -107M | 40M | 3M | -81M | -7M | 66M | -54M | -5M | -92M | -120M | -30M | -53M | -77M | -57M | -21M | 63M | 53M | 15M | 68M | -25.7M | -175.1M | -87.9M |
| Change in Payables | 96M | 296M | 243M | 118M | -255M | 408M | 88M | 111M | -710M | 195M | 553M | -20M | 620M | -37M | -131M | -271M | -1.15B | 1.02B | 392M | 45M | -1M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Cash from Investing | -3.5B | -2.64B | -5.69B | -2.57B | -2.01B | -1.6B | -411M | -5.04B | -1.92B | -1.01B | -887M | -2.19B | -745M | -475M | -579M | 769M | -480M | -793M | 324M | -474M | -9.31B | -551M | -1.62B | -871M | -468M | -800M | -107M | -185M | -2.22B | -251M | -398.2M |
| Capital Expenditures | -903M | -876M | -790M | -711M | -612M | -554M | -376M | -461M | -316M | -319M | -376M | -247M | -259M | -245M | -226M | -304M | -278M | -362M | -362M | -363M | -341M | -341M | -274M | -188M | -112M | -121M | -76M | -80M | -2.23B | -238.2M | -135.3M |
| CapEx % of Revenue | 4.29% | 4.36% | 4.72% | 4.99% | 4.83% | 4.66% | 3.79% | 4.29% | 3.22% | 3.53% | 4.48% | 3.3% | 3.51% | 3.43% | 3.12% | 3.99% | 3.56% | 4.42% | 4.5% | 4.34% | 4.36% | 5.43% | 4.87% | 5.41% | 3.84% | 4.53% | 2.85% | 2.81% | 100.02% | 12.72% | 9.25% |
| Acquisitions | -1.02B | -1.59B | -4.64B | -1.81B | -1.54B | -1.43B | 12M | -4.29B | -1.45B | -560M | -408M | -1.73B | -474M | -244M | -356M | 1.06B | -211M | -527M | 535M | -261M | -9.08B | -211M | -804M | -13M | -187M | -704M | 0 | -128M | 0 | 0 | 0 |
| Investments | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Other Investing | 46M | -171M | -257M | -52M | 106M | -1M | 87M | 1M | 1M | -131M | 29M | 0 | 0 | 53M | 16M | 16M | -1M | -45M | 149M | -91M | 18M | -137M | -356M | -502M | -202M | 5M | -46M | -3M | -2.4M | -38.9M | -281.5M |
| Cash from Financing | -1.42B | -395M | 1.81B | 5M | -548M | -95M | 293M | 2.97B | 1.43B | 110M | -206M | 1.32B | -150M | -596M | -744M | -1.72B | -496M | -820M | -1.35B | -680M | 8.44B | -954M | 439M | 487M | -175M | 437M | -638M | -544M | 1.98B | 161.9M | 207.7M |
| Debt Issued (Net) | 326M | -491M | 1.83B | -4M | -165M | 0 | -999M | 2.79B | 1.41B | 123M | -190M | 1.39B | 0 | -10M | -19M | -1.25B | -527M | -853M | -1.43B | -754M | 6.89B | -313M | 577M | 793M | -283M | 395M | -447M | -1.12B | 1.88B | 252M | 184.7M |
| Equity Issued (Net) | -1.8B | 282M | 230M | 182M | 136M | 110M | 1.42B | 123M | 101M | 85M | 111M | 114M | -65M | -426M | -579M | -471M | 31M | 33M | 71M | 72M | 1.54B | -640M | -135M | -310M | 107M | 42M | -193M | 528M | 66M | -90M | 13.8M |
| Dividends Paid | 0 | 0 | 0 | -28M | -55M | -55M | -28M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Share Repurchases | -2B | 0 | 0 | 0 | 136M | 0 | -535M | 0 | 0 | 0 | 0 | 0 | -125M | -500M | -600M | -492M | 0 | 0 | 0 | -60M | 0 | -734M | -360M | -570M | 0 | 0 | -222M | -127M | 0 | -187M | -63.8M |
| Other Financing | 49M | -186M | -243M | -145M | -464M | -150M | -95M | 56M | -74M | -98M | -127M | -177M | -85M | -160M | -146M | 0 | 0 | 0 | 4M | 2M | 6M | -1M | -3M | 4M | 1M | 0 | 2M | -1M | -5M | 0 | 800K |
| Net Change in Cash | -695M | 1.54B | -449M | -82M | -1.04B | 171M | 1.39B | -222M | -190M | 530M | -123M | -268M | 370M | 10M | -60M | 54M | -651M | -777M | 189M | -216M | 979M | -607M | 625M | 411M | 97M | 126M | -10M | -6M | 12.4M | -14.2M | -58.8M |
| Free Cash Flow | 3.33B | 3.66B | 2.65B | 1.7B | 914M | 1.32B | 1.13B | 1.38B | -6M | 1.11B | 596M | 353M | 1.01B | 837M | 1.03B | 704M | 47M | 473M | 854M | 571M | 1.5B | 562M | 1.53B | 599M | 624M | 369M | 663M | 647M | -1.98B | -157.7M | -1M |
| FCF Margin % | 15.81% | 18.22% | 15.79% | 11.96% | 7.21% | 11.07% | 11.42% | 12.81% | -0.06% | 12.23% | 7.11% | 4.72% | 13.69% | 11.72% | 14.26% | 9.24% | 0.6% | 5.78% | 10.61% | 6.83% | 19.23% | 8.94% | 27.2% | 17.23% | 21.38% | 13.8% | 24.89% | 22.77% | -88.44% | -8.42% | -0.07% |
| FCF Growth % | -11.76% | 38.3% | 55.31% | 86.32% | -30.55% | 16.25% | -17.67% | 23016.67% | -100.54% | 85.74% | 68.84% | -65.05% | 20.67% | -19.05% | 46.88% | 1397.87% | -90.06% | -44.61% | 49.56% | -62.03% | 167.62% | -63.27% | 155.43% | -4.01% | 69.11% | -44.34% | 2.47% | 132.75% | -1152.69% | -15670% | 97.73% |
| FCF per Share | 2.29 | 2.45 | 1.78 | 1.16 | 0.63 | 0.92 | 0.80 | 0.97 | -0.00 | 0.79 | 0.43 | 0.26 | 0.75 | 0.62 | 0.74 | 0.46 | 0.03 | 0.31 | 0.57 | 0.38 | 1.18 | 0.67 | 1.79 | 0.71 | 0.75 | 0.44 | 0.81 | 0.78 | -2.54 | -0.20 | -0.00 |
| FCF Conversion (FCF/Net Income) | 0.95x | 1.57x | 1.85x | 1.57x | 2.19x | 1.80x | -18.39x | 0.39x | 0.19x | 13.71x | 2.80x | -2.51x | -10.66x | -8.94x | -0.31x | 2.29x | -0.31x | -0.81x | -0.60x | -1.89x | -0.52x | 1.44x | 1.70x | 1.67x | 1.97x | -9.07x | 1.98x | 1.96x | -0.98x | 0.58x | 0.80x |
| Interest Paid | 0 | 0 | 250M | 259M | 450M | 338M | 359M | 449M | 262M | 0 | 233M | 283M | 221M | 329M | 255M | 277M | 328M | 364M | 414M | 543M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Taxes Paid | 0 | 0 | 656M | 512M | 662M | 302M | 207M | 242M | 1.04B | 0 | 94M | 80M | 74M | 67M | 97M | 138M | 286M | 46M | 468M | 475M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Quick answers to the most common questions about buying BSX stock.
Boston Scientific Corporation (BSX) generated $4.53B in net cash from operating activities in 2025. This reflects the cash generated directly from core business operations.
Boston Scientific Corporation (BSX) generated $3.66B 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.
Boston Scientific Corporation (BSX) spent $876.0M on capital expenditures in 2025. CapEx represents the cash invested in physical assets like property, plant, and equipment to maintain or grow the business.
Key Metrics
Top Statement Risk
Acquisition-dependent growth and funding
Metrics are mathematically derived from official filings.
Operating Cash Flow Lags Earnings Volatility
Based on the reported quarterly figures, BSX's operating cash flow to net income ratio swung from 2.57 in 2024Q4 to just 0.26 in 2026Q1, a range wide enough to question the consistency of cash earnings quality over the period.
The ratio being above 1.0 in most quarters suggests that non-cash charges such as amortization of acquired intangibles are inflating the gap between reported profit and cash generation, which is characteristic of an acquisitive device company. The 2026Q1 reading, where operating cash flow of $348.0M was far below net income of $1.3B, is primarily explained by a $915.0M working capital outflow, indicating that the quarter's earnings were not yet converted to cash. Investors should monitor whether working capital absorption recurs, as repeated shortfalls would weaken confidence in the earnings base.
Free Cash Flow Margins Remain Volatile
As reported in financial statements, BSX's free cash flow margin ranged from 3.3% in 2026Q1 to 23.5% in 2026Q2, with the latest quarter at 16.9%, reflecting heavy dependence on working capital timing rather than a steady cash-generating trend.
The wide swing in free cash flow margin, combined with a 2025Q1 trough of 7.6%, suggests that quarterly cash generation is driven more by timing effects than by a stable underlying run rate. Capital expenditure has stayed modest at roughly 3-4% of revenue in most quarters, so the volatility appears to originate in operating cash items rather than investment spending. This pattern warrants further investigation before extrapolating any single quarter's margin into forward models.
Acquisitions Absorb Most Discretionary Cash
Based on BSX's reported figures, net acquisition outflows totaled roughly $3.4B in 2024Q4 and $1.0B in 2025Q2, with the company deploying cash into M&A rather than shareholder distributions in most periods.
Dividends were not paid in the reported quarters, while share repurchases appear only in 2026Q2 at $2.0B, which suggests capital is being prioritized toward tuck-in acquisitions consistent with the company's stated growth model. This allocation may improve long-term revenue capacity but ties returns to the successful integration of acquired assets. Investors should monitor whether acquisition spending continues to outpace the cash generated, as this would increase reliance on external financing.
Reported Cash Metrics May Overstate Stability
The cash flow statement may obscure acquisition-related liabilities and non-cash adjustments, and BSX's stock-based compensation and contingent consideration items warrant review before the reported free cash flow is treated as fully recurring.
Stock-based compensation appears in several quarters, and its cash effect is not separately reflected in the free cash flow definition used here, which may flatter the apparent cash generation relative to economic cost. Acquisition payments may also include deferred or contingent components that do not appear as current outflows, a dynamic that could mean future cash obligations are not fully visible in the reported quarterly figures. These considerations suggest the reported free cash flow should be read as an upper-bound view pending verification against the full filings.