Cash generation remains inconsistent, highlighted by a significant $915 million working capital drain in 2026Q1 that contributed to a volatile free cash flow margin of 3.3%.
| 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 | 4.34B | 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 % | 50.22% | 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 | 3.55B | 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 | 1.39B | 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 | 154M | 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 | -394M | -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 | 107M | 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 | -483M | -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 | -279M | -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 | -256M | -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 | 169M | 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 | -2.73B | -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 | -866M | -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 | 4.2% | 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 | -1.88B | -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 | 25M | -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 | -888M | -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) | -997M | -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) | 248M | 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 | 0 | 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 | -139M | -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 | 703M | 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 | 3.44B | 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 % | 16.7% | 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 % | 19.81% | 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 | 2.30 | 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) | 0.97x | 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 |
Regulatory M&A scrutiny
As reported in recent financial filings, Boston Scientific's OCF/NI ratio exhibits significant volatility, ranging from a low of 0.26 in 2026Q1 to a high of 2.57 in 2024Q4, suggesting that reported net income is frequently decoupled from the actual cash-generating capacity of the underlying medical device operations.
The wide variance between net income and operating cash flow appears largely driven by non-cash charges, specifically the amortization of intangible assets from the company's aggressive acquisition strategy. Investors should monitor this divergence closely, as it indicates that accounting earnings may not fully capture the cash-based reality of the firm's procedural-heavy business model.
Based on the provided quarterly data, free cash flow margins have fluctuated significantly, peaking at 25.5% in 2024Q4 before contracting to 3.3% in 2026Q1, which highlights the sensitivity of cash generation to the timing of large-scale acquisitions and associated working capital requirements.
While the company demonstrates the ability to generate substantial free cash flow during stable periods, the sharp quarterly declines suggest that the business model is highly dependent on the cadence of capital deployment. This trajectory warrants further investigation into whether these cash flow troughs are temporary timing issues or indicative of a structural increase in the cost of maintaining market leadership.
According to the cash flow statements, working capital changes have acted as a significant periodic drain on liquidity, notably with a $915 million outflow in 2026Q1, which suggests that inventory management and collection cycles are becoming increasingly complex as the company scales its global footprint.
The recurring negative working capital swings appear to coincide with periods of intense acquisition activity, potentially reflecting the integration of new inventory systems or supply chain adjustments. Analysts should assess whether these outflows represent a permanent shift in the cash conversion cycle or merely the temporary friction of absorbing new business units.
As evidenced by the quarterly cash flow data, Boston Scientific consistently prioritizes net acquisition spending, with outflows reaching $3.4 billion in 2024Q4, which underscores a capital allocation strategy heavily reliant on external innovation to sustain its competitive position in the medical device market.
The company's reliance on tuck-in acquisitions suggests that management views external growth as a primary lever for long-term value creation. However, the high cost of these transactions may limit the firm's ability to return capital to shareholders, as evidenced by the minimal dividend and buyback activity observed in the provided data.
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.