Capital intensity remains elevated with a 191.8% CapEx-to-revenue ratio observed in 2025Q4, contributing to a structural inability to generate positive operating cash flow since 2024Q1.
| Metric | TTM | Sep'25 | Sep'24 | Sep'23 | Sep'22 | Sep'21 | Sep'20 | Sep'19 | Sep'18 | Sep'17 | Sep'16 | Sep'15 | Sep'14 | Sep'13 | Sep'12 | Sep'11 | Sep'10 | Sep'09 | Sep'08 |
|---|
| Cash from Operations | -526.26M | -461.03M | -233.66M | -17.25M | 73.46M | -23.99M | -6.64M | -5.7M | -1.26M | -1.36M | -438.17K | -190.66K | -103.5K | -17.64K | -795 | -4.83K | -10.11K | 0 | 0 |
| Operating CF Margin % | - | -60.16% | -61.66% | -10.24% | 55.85% | -61.05% | -66.24% | -125.71% | -217.84% | -304.01% | -534.15% | - | -4051.04% | - | - | - | - | - | - |
| Operating CF Growth % | -188.29% | -97.31% | -1254.8% | -123.48% | 406.25% | -261.09% | -16.58% | -352.03% | 7.44% | -210.81% | -129.81% | -84.21% | -486.66% | -2119.25% | 83.55% | 52.21% | - | - | - |
| Net Income | -500.59M | 364.46M | -145.78M | -133.72M | -40.09M | -8.23M | -23.35M | -26.12M | -47.01M | -13.5M | -2.54M | -3.49M | -45.15K | -31.77K | -19.75K | -37.81K | -18.85K | -30.78K | -22.05K |
| Depreciation & Amortization | 425.4M | 348.33M | 154.61M | 120.73M | 49.05M | 9.34M | 2.84M | 3.36M | 2.23M | 3.32M | 578.46K | 2.8K | 1.51K | 0 | 0 | 0 | 0 | 0 | 0 |
| Stock-Based Compensation | 63.4M | 45.34M | 29.55M | 24.14M | 31.47M | 8.55M | 2.05M | 1.99M | 1.5M | 135.55K | 1.54M | 3.24M | 12.88K | 0 | 0 | 0 | 0 | 0 | 0 |
| Deferred Taxes | -8.37M | 39.11M | 3.34M | 2.42M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Other Non-Cash Items | -487.13M | -1.28B | -288.58M | -43.63M | -112.88M | -8.72M | 8.91M | 16.16M | 41.76M | 8.68M | 19.37K | 5.14K | -14.09K | 6.73K | 23.92K | 30.36K | 20.87K | 16.96K | 15.68K |
| Working Capital Changes | -18.96M | 19.5M | 13.19M | 12.82M | 145.91M | -24.92M | 2.91M | -1.09M | 250.25K | 1.22K | -40.41K | 44.09K | -58.66K | 7.4K | -4.97K | 2.62K | -12.13K | 13.81K | 6.37K |
| Change in Receivables | 0 | 0 | 0 | -108K | -530.31K | -429.68K | 31.31K | -1.01M | -44.63K | 15.15K | -39.29K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Change in Inventory | 0 | 0 | 0 | -593K | -136.59K | 107.06K | -247.5K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Change in Payables | -8.27M | 0 | 0 | 0 | 0 | 5.01M | 3.42M | 723.83K | 44.81K | 144 | -16.31K | 45.31K | -58.99K | 5.99K | -3.56K | 2.62K | -12.13K | 13.81K | 6.37K |
| Cash from Investing | 59.22M | -305.66M | -920.4M | -331.93M | -210.98M | -229.16M | -2.38M | -673.95K | -419.23K | -126.32K | -20.86K | -79.55K | -3.52K | 0 | 0 | 0 | 0 | 0 | 0 |
| Capital Expenditures | -508.35M | -562.87M | -806.4M | -300.88M | -190.47M | -228.58M | -34.9K | -102.76K | -15.23K | -10.68K | -9.67K | -76.95K | -3.52K | 0 | 0 | 0 | 0 | 0 | 0 |
| CapEx % of Revenue | 68.71% | 73.45% | 212.79% | 178.66% | 144.81% | 581.81% | 0.35% | 2.27% | 2.63% | 2.38% | 11.79% | - | 137.96% | - | - | - | - | - | - |
| Acquisitions | -57.63M | -6.69M | -18.38M | -22.52M | -23.8M | 45.78K | -1.51M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Investments | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Other Investing | 126.89M | 36.28M | -138.75M | -8.54M | 3.27M | -1M | -84.92K | -571.19K | -404K | -115.64K | -11.18K | -2.59K | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Cash from Financing | 630.13M | 688.87M | 1.25B | 357.93M | 139.95M | 268.06M | 4.31M | 13.8M | 2.04M | 1.11M | 807.02K | 242K | 223.5K | 17.5K | 1K | 5K | 10.15K | 0 | 0 |
| Debt Issued (Net) | 1.13B | 753.19M | 42.64M | -12.83M | 16.41M | -6.17M | 313.7K | 13.43M | 1.72M | 228.78K | -6.78K | 0 | 23.5K | 17.5K | 1K | 5K | 10.15K | 0 | 0 |
| Equity Issued (Net) | -458.26M | 42.73M | 1.23B | 376.2M | 123.85M | 270.66M | 4M | 361.8K | 271.9K | 880K | 813.8K | 242K | 200K | 0 | 0 | 0 | 0 | 0 | 0 |
| Dividends Paid | -36M | -10.74M | -3.42M | -21K | -315K | -177.5K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Share Repurchases | -460M | -145M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Other Financing | -4.86M | -96.31M | -22.68M | -5.42M | 0 | 3.75M | 0 | 4.36K | 44.94K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Net Change in Cash | 163.08M | -77.82M | 95.06M | 8.75M | 2.42M | 14.91M | -4.71M | 7.43M | 355.65K | -379.4K | 348K | -28.21K | 116.47K | -143 | 205 | 168 | 40 | 0 | 0 |
| Free Cash Flow | -1.07B | -1.02B | -1.04B | -318.12M | -117.23M | -252.56M | -6.76M | -6.37M | -1.68M | -1.5M | -459.02K | -270.21K | -107.03K | -17.64K | -795 | -4.83K | -10.11K | 0 | 0 |
| FCF Margin % | -144.91% | -133.61% | -274.44% | -188.9% | -89.13% | -642.87% | -67.43% | -140.57% | -290.3% | -333.77% | -559.57% | - | -4189% | - | - | - | - | - | - |
| FCF Growth % | 12.67% | 1.55% | -226.94% | -171.36% | 53.58% | -3634.73% | -6.13% | -279.34% | -12.34% | -225.73% | -69.88% | -152.46% | -506.64% | -2119.25% | 83.55% | 52.21% | - | - | - |
| FCF per Share | -4.00 | -3.22 | -4.80 | -3.10 | -2.75 | -8.58 | -0.71 | -1.53 | -0.49 | -0.46 | -0.20 | -0.14 | -0.10 | -0.06 | -0.00 | -0.02 | -0.04 | - | - |
| FCF Conversion (FCF/Net Income) | 2.14x | -1.26x | 1.60x | 0.12x | -1.28x | 1.10x | 0.28x | 0.22x | 0.03x | 0.10x | 0.17x | 0.05x | 2.29x | 0.56x | 0.04x | 0.13x | 0.54x | - | - |
| Interest Paid | 9.39M | 8.88M | 2.13M | 2.91M | 1.03M | 156.2K | 14.16K | 55.49K | 106.97K | 1.63K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Taxes Paid | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Persistent negative operating cash
According to reported financial statements, CleanSpark has consistently failed to convert net income into positive operating cash flow, with the company recording negative operating cash flow in every quarter since 2024Q1, despite intermittent periods of reported net profitability during the same timeframe.
The persistent gap between net income and operating cash flow suggests that reported earnings are heavily influenced by non-cash accounting adjustments, such as the fair value revaluation of digital assets. Investors should monitor this divergence, as it indicates that the company's core mining operations are not currently generating the liquidity required to sustain its capital-intensive business model.
As reported in recent filings, CleanSpark's free cash flow has remained deeply negative, reaching a trough of -$835.8M in 2024Q4, which highlights a structural inability to fund aggressive infrastructure expansion through internally generated cash flow rather than external financing or equity dilution.
The consistent negative free cash flow margins, which reached -127.1% in 2026Q2, suggest that the company is in a perpetual state of capital consumption. This trajectory warrants further investigation into whether the current scale of investment will eventually yield sufficient returns to offset the ongoing cash burn.
Based on the provided data, CleanSpark's capital expenditure remains highly elevated relative to revenue, with a peak intensity of 191.8% in 2025Q4, indicating that the company is prioritizing rapid fleet expansion over the immediate generation of positive free cash flow.
The high level of capital expenditure appears to be driven by the continuous need to upgrade ASIC hardware to remain competitive in an environment of rising network difficulty. This aggressive reinvestment strategy suggests that the company is betting on future hash rate dominance, though it leaves the balance sheet vulnerable to prolonged periods of low Bitcoin prices.
As indicated by the company's financial statements, CleanSpark has utilized significant equity-linked financing and share repurchases, such as the $460M outflow in 2026Q1, to manage its capital structure despite the absence of positive cash flow from its primary mining operations.
The reliance on equity markets to fund both growth and capital returns suggests that management is prioritizing market share and infrastructure footprint over organic cash self-sufficiency. Investors should monitor whether this strategy leads to excessive shareholder dilution, particularly if the return on invested capital fails to exceed the cost of equity.
Quick answers to the most common questions about buying CLSK stock.
CleanSpark, Inc. (CLSK) generated $-461.0M in net cash from operating activities in 2025. This reflects the cash generated directly from core business operations.
CleanSpark, Inc. (CLSK) reported negative free cash flow of $1.02B in 2025, indicating capital requirements exceeded cash from operations.
CleanSpark, Inc. (CLSK) spent $562.9M 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, CleanSpark, Inc. (CLSK) returned $10.7M to shareholders via cash dividends and spent $145.0M on share repurchases. This shows the company's commitment to returning capital to its equity investors.