Free cash flow generation is robust, with an FCF margin of 23.5% in 2026Q2, but quarterly operating cash flow is highly volatile due to large working capital swings, such as the $915 million outflow in 2026Q1.
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 | 4.53B | 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 % | 6.66% | 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 | 3.67B | 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 | 1.41B | 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 | 166M | 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 | -287M | -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 | 207M | 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 | -642M | -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 | -293M | -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 | -454M | -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 | 172M | 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 | -3.56B | -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 | -904M | -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 | 4.31% | 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 | -1.06B | -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 | -19M | -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 | -958M | -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) | 979M | -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) | -1.78B | 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 | -158M | -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 | -9M | 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 | 3.63B | 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 % | 17.27% | 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 % | 9.48% | 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 | 2.44 | 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) | 0.99x | 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
Working capital volatility masking cash generation
Metrics are mathematically derived from official filings.
Strong Cash Conversion with Volatility
Boston Scientific's operating cash flow consistently exceeds net income, with the OCF/NI ratio averaging 1.6 over the last ten quarters, indicating high-quality earnings, though the ratio dipped to 0.26 in 2026Q1 due to a large working capital outflow.
The persistent premium of operating cash flow over net income suggests strong underlying cash generation from core operations, driven by non-cash items like depreciation and amortization. However, the significant quarterly volatility in the OCF/NI ratio, particularly the sharp drop in 2026Q1, highlights that working capital swings can temporarily obscure the quality of earnings, warranting a closer look at the underlying drivers of receivables and inventory.
FCF Trajectory Shows Underlying Strength
Free cash flow has been robust, with FCF margins averaging 15.7% over the last ten quarters and reaching 23.5% in 2026Q2, demonstrating the company's ability to convert revenue growth into substantial cash generation after capital expenditures.
The strong FCF trajectory, particularly the recent expansion to a 23.5% margin, aligns with the reported revenue growth and gross margin expansion, suggesting the business is scaling efficiently. The comparison to net income shows that FCF is often multiples of reported earnings, reinforcing the view that the company's cash generation power is a key strength, though the negative FCF in 2024Q1 serves as a reminder of the impact of large working capital or acquisition-related cash outflows.
Working Capital Swings Drive Cash Flow Volatility
Working capital changes have been the primary driver of quarterly operating cash flow volatility, with a massive $915 million outflow in 2026Q1 followed by a $74 million inflow in 2026Q2, indicating lumpy collections or inventory cycles.
The erratic pattern of working capital changes, swinging from large negative to positive figures quarter-to-quarter, suggests that the timing of receivables collection and inventory management creates significant noise in the cash flow statement. This volatility makes it difficult to assess the underlying trend in operational efficiency and implies that investors should focus on the longer-term average rather than any single quarter's working capital impact.
Disciplined Capital Intensity Supports FCF
Capital expenditures have remained a modest 3.1% to 6.6% of revenue over the period, indicating a disciplined investment approach that preserves a significant portion of operating cash flow for other uses.
The consistently low capital intensity, with CapEx/Rev averaging around 4.2%, suggests that Boston Scientific's business model does not require heavy reinvestment to sustain operations, which is a key enabler of its strong free cash flow margins. This level of spending appears sufficient to maintain and grow the asset base, as evidenced by the steady depreciation and amortization figures, without consuming excessive cash.
Aggressive M&A and Buybacks Shape Capital Allocation
The company has deployed substantial cash for acquisitions, with a notable $3.4 billion outflow in 2024Q4 and $1.0 billion in 2025Q2, alongside a $2.0 billion share repurchase in 2026Q2, indicating a strategy focused on inorganic growth and shareholder returns.
The capital deployment pattern reveals a clear priority on strategic acquisitions to drive growth, as seen in the large, episodic cash outflows for net acquisitions. The recent $2.0 billion buyback in 2026Q2, following a period of minimal repurchase activity, suggests a shift towards returning capital to shareholders, but this must be balanced against the ongoing need for acquisition funding and the volatility in operating cash flow.
Cash Flow Statement Obscures Acquisition Integration
The cash flow statement does not fully reveal the ongoing cash costs or integration risks associated with the large acquisitions, such as the $3.4 billion outflow in 2024Q4, which may include contingent payments or restructuring not yet reflected.
While the cash flow statement shows the initial purchase price for acquisitions, it does not detail the subsequent cash outflows for integration, potential earn-outs, or restructuring that could impact future periods. This lack of transparency means the true long-term cash cost of the company's inorganic growth strategy is not immediately apparent, and investors should monitor future operating cash flow for signs of integration drag or unexpected liabilities.