Earnings quality remains robust as evidenced by an OCF/NI ratio of 3.93 in 2025Q4, though free cash flow margins exhibit significant volatility, ranging from 3.2% to 31.8% due to working capital fluctuations.
| 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 |
|---|
| Cash from Operations | 29.14M | 28.95M | 28.92M | 26.18M | 6.46M | 7.97M | 26.16M | 11.69M | 10.31M | 15.56M | 37.46M | 38.01M | 41.56M | 50.46M | 72.88M | 82.44M | 81.42M | 101.86M | 106.04M | 114.28M | 147.24M | 139.25M | 114.27M |
| Operating CF Margin % | - | 20.72% | 21.01% | 18.83% | 4.8% | 5.61% | 17.66% | 7.29% | 6.09% | 9.09% | 20.86% | 20.05% | 20.75% | 24.06% | 43.27% | 33.94% | 34.91% | 35.16% | 29.5% | 26.91% | 29.58% | 22.51% | 23.31% |
| Operating CF Growth % | 13.64% | 0.09% | 10.46% | 305.58% | -18.98% | -69.54% | 123.75% | 13.36% | -33.69% | -58.47% | -1.45% | -8.53% | -17.63% | -30.77% | -11.6% | 1.25% | -20.07% | -3.94% | -7.21% | -22.38% | 5.74% | 21.87% | - |
| Net Income | 10.69M | 15.88M | 14.96M | 15.67M | 21.86M | -22.18M | -44.23M | -10.77M | -1.48M | -15.31M | 13.98M | 84.23M | 20.75M | 27.53M | 26.98M | 88.64M | 77.9M | 67.56M | -157.08M | -5.2M | 40.18M | 12.91M | 13.48M |
| Depreciation & Amortization | 3.56M | 3.43M | 4.15M | 4.5M | 3.57M | 10.45M | 9.06M | 9.25M | 10.77M | 11.62M | 12.96M | 13.97M | 16.68M | 15.17M | 18.23M | 19.33M | 24.13M | 41.91M | 48.27M | 50.1M | 76.03M | 132.04M | 114.37M |
| Stock-Based Compensation | 5.21M | 5.01M | 4.96M | 4.06M | 3.83M | 7.24M | 5.51M | 3.64M | 4.95M | 3.69M | 854K | 1.87M | 3.84M | 3.04M | 1.22M | 1.53M | 0 | 1.56M | 1.41M | 2.73M | 0 | 2.83M | 2.08M |
| Deferred Taxes | 4.73M | 5.17M | 4.57M | 6.38M | 903K | -5.48M | 438K | -3.25M | -1.9M | 25.39M | 6.66M | -59.69M | 4.43M | 15.8M | 17.56M | -25.07M | -18.11M | 32.43M | 36.83M | 92M | 16.2M | 7.46M | 9.28M |
| Other Non-Cash Items | 611K | 430K | 846K | 950K | -20.07M | 16.82M | 48.33M | 9.54M | 2.13M | 222K | 763K | 497K | 1.59M | 2.23M | 5.44M | -4.97M | 3.01M | -2.7M | 187.16M | -1.13M | 17.2M | 27.68M | 15.09M |
| Working Capital Changes | 2.35M | -966K | -566K | -5.37M | -3.63M | 1.12M | 7.06M | 3.28M | -4.16M | -10.06M | 2.25M | -2.87M | -5.72M | -13.32M | 3.43M | 2.97M | -6.31M | -38.9M | -10.55M | -24.21M | -2.97M | -43.67M | -40.03M |
| Change in Receivables | -534K | -1.96M | 506K | 2.58M | -1.76M | 1.83M | -1.59M | 964K | -915K | -9.65M | -1.79M | 1.04M | -8.01M | 1.54M | -3.01M | -417K | 1.22M | 1.55M | -10.24M | -6.82M | 0 | -23.44M | -1.96M |
| Change in Inventory | 0 | 0 | 0 | 0 | 0 | 3.36M | 0 | 0 | -646K | 274K | 843K | 658K | 17K | -1.22M | -318K | 8.14M | 0 | -3.29M | 6.71M | -12.87M | 0 | -1.8M | 3.6M |
| Change in Payables | 1.54M | -1.74M | -1.18M | -5.22M | -2.26M | -679K | 4.03M | 742K | -1.55M | -3.27M | 1.08M | -7.38M | 1.19M | -6.86M | 2.38M | -7.43M | 0 | 482K | -11.31M | 816K | 0 | -21.28M | -32.88M |
| Cash from Investing | -2.91M | -3.05M | -3.21M | -3.42M | 11.26M | -225K | -14.57M | -30.22M | -5.83M | -9.21M | -6.25M | -5.57M | -7.61M | -10.12M | -12.66M | -134.65M | -8.66M | -17.06M | -18.16M | -18M | -19.36M | -13.05M | -133.72M |
| Capital Expenditures | -3.61M | -3.75M | -3.21M | -3.42M | -3.78M | -15.23M | -3.46M | -4.84M | -5.92M | -9.21M | -6.25M | -6.37M | -7.68M | -10.41M | -9.99M | -7.95M | -8.74M | -17.23M | -18.34M | -18.32M | -20.99M | -13.5M | -19.23M |
| CapEx % of Revenue | 3.49% | 2.69% | 2.33% | 2.46% | 2.81% | 10.72% | 2.33% | 3.02% | 3.49% | 5.38% | 3.48% | 3.36% | 3.83% | 4.96% | 5.93% | 3.27% | 3.75% | 5.95% | 5.1% | 4.32% | 4.22% | 2.18% | 3.92% |
| Acquisitions | 0 | 0 | 0 | 0 | -15.03M | 10.84M | 0 | 0 | 0 | 0 | 0 | 809K | 0 | 0 | -3M | -134.25M | 0 | 0 | 0 | 0 | 0 | 0 | -117.76M |
| Investments | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Other Investing | 701K | 701K | 0 | 0 | 15.03M | -10.84M | -11.25M | 0 | 89K | 43K | -1.98M | 809K | 65K | 293K | 330K | 7.55M | 75K | 168K | 179K | 323K | 1.63M | 168K | 3.27M |
| Cash from Financing | -29.03M | -29.79M | -28.54M | -26.68M | -26.22M | -11.75M | -10.37M | -17.15M | -24.28M | -25M | -16.72M | -28.98M | -15.15M | -12.31M | -52.83M | -23.35M | -53.13M | -50.24M | -77.39M | -98.25M | -98.92M | -135.66M | 31.87M |
| Debt Issued (Net) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -28.25M | 347K | 0 | 0 | 0 | 0 | -13K | -95.05M | 34.98M |
| Equity Issued (Net) | 312K | -2.53M | -2.43M | -1.25M | -1.21M | -1.86M | -602K | -7.59M | -14.46M | -10.02M | -6.49M | -15.01M | -4.33M | 0 | -8.06M | 0 | -8.89M | -4.74M | -38.33M | 0 | 0 | 0 | -3.11M |
| Dividends Paid | -27.27M | -27.26M | -26.38M | -25.64M | -25.01M | -10.03M | -9.77M | -9.82M | -10.06M | -15.23M | -10.29M | -13.98M | -10.83M | -12.31M | -16.51M | -22.12M | -44.23M | -45.5M | -39.06M | -98.25M | -98.9M | -40.69M | 0 |
| Share Repurchases | -1.93M | -2.84M | -2.43M | -1.25M | -1.21M | -1.86M | -903K | -7.59M | -14.46M | -10.02M | -6.44M | -15.01M | -4.33M | 0 | -8.06M | 0 | -8.89M | -4.74M | -38.33M | 0 | 0 | 0 | -3.11M |
| Other Financing | -2.07M | 0 | 272K | 210K | 0 | 132K | 0 | 258K | 247K | 256K | 53K | -3.83M | 0 | 0 | 0 | -23.7M | 0 | 0 | 0 | 0 | 0 | 80K | 0 |
| Net Change in Cash | -2.79M | -3.87M | -2.84M | -3.77M | -8.83M | -4.15M | 1.37M | -35.98M | -19.84M | -18.66M | 14.48M | 3.46M | 18.79M | 28.03M | 7.39M | -75.56M | 19.63M | 34.56M | 10.49M | -1.97M | 28.96M | -9.45M | 12.41M |
| Free Cash Flow | 25.53M | 25.2M | 25.71M | 22.77M | 2.68M | -7.27M | 11.46M | 6.86M | 4.4M | 6.34M | 31.21M | 31.64M | 33.88M | 40.05M | 62.89M | 74.48M | 72.68M | 84.63M | 87.7M | 95.96M | 126.25M | 125.75M | 95.03M |
| FCF Margin % | 24.68% | 18.03% | 18.68% | 16.38% | 1.99% | -5.11% | 7.73% | 4.28% | 2.6% | 3.71% | 17.38% | 16.68% | 16.92% | 19.09% | 37.34% | 30.66% | 31.16% | 29.21% | 24.4% | 22.6% | 25.37% | 20.33% | 19.39% |
| FCF Growth % | -2.19% | -2.01% | 12.94% | 749.51% | 136.88% | -163.43% | 67.09% | 55.82% | -30.62% | -79.68% | -1.36% | -6.62% | -15.4% | -36.32% | -15.57% | 2.48% | -14.12% | -3.5% | -8.61% | -23.99% | 0.4% | 32.33% | - |
| FCF per Share | 1.21 | 1.20 | 1.25 | 1.12 | 0.13 | -0.37 | 0.60 | 0.36 | 0.22 | 0.31 | 1.52 | 1.49 | 1.53 | 1.82 | 2.81 | 3.31 | 3.22 | 3.64 | 3.26 | 3.50 | 4.58 | 4.59 | 4.53 |
| FCF Conversion (FCF/Net Income) | 2.39x | 1.82x | 1.93x | 1.67x | 0.30x | -0.36x | -0.59x | -1.09x | -6.97x | -1.02x | 2.68x | 0.45x | 2.00x | 1.83x | 2.27x | 0.93x | 1.05x | 1.51x | -0.68x | -21.99x | 3.66x | 10.79x | 8.48x |
| Interest Paid | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3K | 8K | 10K | 288K | 1.5M | 0 | 2K | 11K | 0 | 0 | 0 | 0 |
| Taxes Paid | 185K | 0 | 0 | 0 | 0 | 126K | 1K | 901K | 1.06M | 2.62M | 695K | 1.52M | 1.45M | 1.47M | 1.61M | 1.93M | 434K | 447K | 462K | 0 | 0 | 0 | 0 |
Secular paging subscriber decline
As reported in quarterly filings, Spok's operating cash flow frequently exceeds net income, with OCF/NI ratios reaching as high as 3.93 in 2025Q4, suggesting that reported earnings are consistently supported by cash-generative operations rather than accounting accruals or non-cash adjustments.
The consistent divergence between net income and operating cash flow indicates that the company's profitability is heavily influenced by non-cash charges, likely related to the depreciation of its extensive legacy paging infrastructure. Investors should interpret this as a sign of high earnings quality, where the cash reality of the business is more robust than the bottom-line accounting figures suggest.
Based on the provided financial data, free cash flow margins exhibit significant quarterly variance, ranging from 3.2% to 31.8%, which appears primarily driven by the timing of working capital fluctuations rather than a fundamental deterioration in the core business's ability to generate cash.
While the headline FCF figures appear erratic, the underlying cash generation remains resilient due to the non-discretionary nature of hospital communication services. The periodic compression in FCF margins warrants further investigation into the specific timing of annual service contract renewals and the associated cash collection cycles.
According to recent cash flow statements, working capital changes have been a primary driver of quarterly cash flow volatility, with swings as large as $6.3 million in 2025Q1, reflecting the lumpy nature of software maintenance billings and the timing of professional services project milestones.
The significant fluctuations in working capital suggest that cash flow is sensitive to the timing of customer payments within the software segment. This volatility may indicate that while the business is fundamentally sound, short-term liquidity can be impacted by the administrative cycles of large hospital system clients.
As evidenced by historical cash flow data, Spok consistently prioritizes shareholder returns, with dividend payments often exceeding $6 million per quarter, a strategy that appears sustainable only as long as the legacy paging business continues to provide reliable, high-margin cash flow to fund these distributions.
The commitment to returning capital via dividends and buybacks suggests management's focus on value preservation over aggressive reinvestment. This approach may limit the company's ability to pivot toward new growth initiatives, potentially leaving the firm vulnerable if the core paging business experiences an unexpected acceleration in subscriber churn.
Quick answers to the most common questions about buying SPOK stock.
Spok Holdings, Inc. (SPOK) generated $28.9M in net cash from operating activities in 2025. This reflects the cash generated directly from core business operations.
Spok Holdings, Inc. (SPOK) generated $25.2M 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.
Spok Holdings, Inc. (SPOK) spent $3.8M 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, Spok Holdings, Inc. (SPOK) returned $27.3M to shareholders via cash dividends and spent $2.8M on share repurchases. This shows the company's commitment to returning capital to its equity investors.