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Side-by-side financial comparison of Spok Holdings, Inc (SPOK) and STEM, INC. (STEM). Click either name above to swap in a different company.
STEM, INC. is the larger business by last-quarter revenue ($47.1M vs $33.9M, roughly 1.4× Spok Holdings, Inc). Spok Holdings, Inc runs the higher net margin — 8.7% vs -33.9%, a 42.5% gap on every dollar of revenue. On growth, Spok Holdings, Inc posted the faster year-over-year revenue change (-0.1% vs -15.6%). Over the past eight quarters, STEM, INC.'s revenue compounded faster (36.1% CAGR vs -1.5%).
Spok Holdings, Inc. is a global provider of critical communication solutions primarily serving the healthcare industry. It offers unified clinical communication platforms, secure messaging tools, alerting systems, and on-call scheduling software that help care teams coordinate efficiently, cut response times, and boost patient safety across medical facilities.
StemCells, Inc. is a public biopharmaceutical company headquartered in Newark, California, that is developing purified human neural stem cells (HuCNS-SCs) in the hopes of treating central nervous system disorders and paralysis. StemCells' HuCNS-SCs have the ability to differentiate into the three main types of cells found in the central nervous system: neurons, astrocytes and oligodendrocytes.
SPOK vs STEM — Head-to-Head
Income Statement — Q4 FY2025 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $33.9M | $47.1M |
| Net Profit | $2.9M | $-16.0M |
| Gross Margin | 76.7% | 48.9% |
| Operating Margin | 11.6% | -17.7% |
| Net Margin | 8.7% | -33.9% |
| Revenue YoY | -0.1% | -15.6% |
| Net Profit YoY | -19.6% | 68.8% |
| EPS (diluted) | $0.13 | $-4.40 |
Green = leading value per metric. Periods may differ when fiscal calendars don't align.
8-Quarter Revenue & Profit Trend
Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.
| Q4 25 | $33.9M | $47.1M | ||
| Q3 25 | $33.9M | $38.2M | ||
| Q2 25 | $35.7M | $38.4M | ||
| Q1 25 | $36.3M | $32.5M | ||
| Q4 24 | $33.9M | $55.8M | ||
| Q3 24 | $34.9M | $29.3M | ||
| Q2 24 | $34.0M | $34.0M | ||
| Q1 24 | $34.9M | $25.5M |
| Q4 25 | $2.9M | $-16.0M | ||
| Q3 25 | $3.2M | $-23.8M | ||
| Q2 25 | $4.6M | $202.5M | ||
| Q1 25 | $5.2M | $-25.0M | ||
| Q4 24 | $3.6M | $-51.1M | ||
| Q3 24 | $3.7M | $-148.3M | ||
| Q2 24 | $3.4M | $-582.3M | ||
| Q1 24 | $4.2M | $-72.3M |
| Q4 25 | 76.7% | 48.9% | ||
| Q3 25 | 78.3% | 35.5% | ||
| Q2 25 | 79.5% | 33.4% | ||
| Q1 25 | 80.1% | 32.4% | ||
| Q4 24 | 78.5% | -4.4% | ||
| Q3 24 | 79.5% | 21.2% | ||
| Q2 24 | 78.9% | 27.6% | ||
| Q1 24 | 79.5% | -95.0% |
| Q4 25 | 11.6% | -17.7% | ||
| Q3 25 | 12.9% | -33.6% | ||
| Q2 25 | 15.1% | -34.8% | ||
| Q1 25 | 16.6% | -65.0% | ||
| Q4 24 | 13.7% | -84.4% | ||
| Q3 24 | 14.2% | -493.2% | ||
| Q2 24 | 13.2% | -1705.5% | ||
| Q1 24 | 14.0% | -267.0% |
| Q4 25 | 8.7% | -33.9% | ||
| Q3 25 | 9.5% | -62.2% | ||
| Q2 25 | 12.8% | 527.8% | ||
| Q1 25 | 14.3% | -76.9% | ||
| Q4 24 | 10.8% | -91.6% | ||
| Q3 24 | 10.5% | -506.3% | ||
| Q2 24 | 10.1% | -1712.6% | ||
| Q1 24 | 12.1% | -283.9% |
| Q4 25 | $0.13 | $-4.40 | ||
| Q3 25 | $0.15 | $-2.84 | ||
| Q2 25 | $0.22 | $-1.79 | ||
| Q1 25 | $0.25 | $-0.15 | ||
| Q4 24 | $0.17 | $-15.29 | ||
| Q3 24 | $0.18 | $-18.24 | ||
| Q2 24 | $0.17 | $-71.81 | ||
| Q1 24 | $0.21 | $-0.46 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $25.3M | $48.9M |
| Total DebtLower is stronger | — | — |
| Stockholders' EquityBook value | $146.4M | $-249.4M |
| Total Assets | $206.1M | $308.9M |
| Debt / EquityLower = less leverage | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $25.3M | $48.9M | ||
| Q3 25 | $21.4M | $43.1M | ||
| Q2 25 | $20.2M | $40.8M | ||
| Q1 25 | $19.9M | $58.6M | ||
| Q4 24 | $29.1M | $56.3M | ||
| Q3 24 | $27.8M | $75.4M | ||
| Q2 24 | $23.9M | $89.6M | ||
| Q1 24 | $23.3M | $112.8M |
| Q4 25 | $146.4M | $-249.4M | ||
| Q3 25 | $148.7M | $-235.7M | ||
| Q2 25 | $150.9M | $-214.1M | ||
| Q1 25 | $151.7M | $-417.5M | ||
| Q4 24 | $154.7M | $-398.4M | ||
| Q3 24 | $156.3M | $-344.1M | ||
| Q2 24 | $158.2M | $-203.2M | ||
| Q1 24 | $160.2M | $371.6M |
| Q4 25 | $206.1M | $308.9M | ||
| Q3 25 | $209.7M | $362.6M | ||
| Q2 25 | $208.7M | $379.2M | ||
| Q1 25 | $204.5M | $405.1M | ||
| Q4 24 | $217.1M | $437.4M | ||
| Q3 24 | $216.8M | $537.8M | ||
| Q2 24 | $216.4M | $691.5M | ||
| Q1 24 | $215.0M | $1.3B |
Cash Flow & Capital Efficiency
How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.
| Metric | | |
|---|---|---|
| Operating Cash FlowLast quarter | $11.5M | $8.2M |
| Free Cash FlowOCF − Capex | $10.1M | — |
| FCF MarginFCF / Revenue | 29.9% | — |
| Capex IntensityCapex / Revenue | 4.1% | — |
| Cash ConversionOCF / Net Profit | 3.93× | — |
| TTM Free Cash FlowTrailing 4 quarters | $25.2M | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $11.5M | $8.2M | ||
| Q3 25 | $8.1M | $11.4M | ||
| Q2 25 | $7.0M | $-21.3M | ||
| Q1 25 | $2.3M | $8.5M | ||
| Q4 24 | $8.4M | $-14.7M | ||
| Q3 24 | $11.1M | $-9.4M | ||
| Q2 24 | $7.4M | $-11.9M | ||
| Q1 24 | $2.0M | $-621.0K |
| Q4 25 | $10.1M | — | ||
| Q3 25 | $7.6M | — | ||
| Q2 25 | $6.0M | — | ||
| Q1 25 | $1.5M | — | ||
| Q4 24 | $7.5M | — | ||
| Q3 24 | $10.3M | — | ||
| Q2 24 | $6.8M | — | ||
| Q1 24 | $1.1M | — |
| Q4 25 | 29.9% | — | ||
| Q3 25 | 22.4% | — | ||
| Q2 25 | 16.8% | — | ||
| Q1 25 | 4.2% | — | ||
| Q4 24 | 22.3% | — | ||
| Q3 24 | 29.4% | — | ||
| Q2 24 | 20.0% | — | ||
| Q1 24 | 3.2% | — |
| Q4 25 | 4.1% | — | ||
| Q3 25 | 1.6% | — | ||
| Q2 25 | 2.9% | — | ||
| Q1 25 | 2.1% | — | ||
| Q4 24 | 2.5% | — | ||
| Q3 24 | 2.4% | — | ||
| Q2 24 | 1.9% | — | ||
| Q1 24 | 2.5% | — |
| Q4 25 | 3.93× | — | ||
| Q3 25 | 2.54× | — | ||
| Q2 25 | 1.55× | -0.11× | ||
| Q1 25 | 0.43× | — | ||
| Q4 24 | 2.31× | — | ||
| Q3 24 | 3.03× | — | ||
| Q2 24 | 2.17× | — | ||
| Q1 24 | 0.47× | — |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
SPOK
| Paging | $16.8M | 50% |
| Software Operations | $16.0M | 47% |
| License | $1.2M | 4% |
STEM
Segment breakdown not available.
