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Side-by-side financial comparison of Cytek Biosciences, Inc. (CTKB) and System1, Inc. (SST). Click either name above to swap in a different company.
Cytek Biosciences, Inc. is the larger business by last-quarter revenue ($62.1M vs $51.9M, roughly 1.2× System1, Inc.). System1, Inc. runs the higher net margin — -26.0% vs -70.9%, a 45.0% gap on every dollar of revenue. On growth, Cytek Biosciences, Inc. posted the faster year-over-year revenue change (8.1% vs -31.3%). Over the past eight quarters, Cytek Biosciences, Inc.'s revenue compounded faster (17.7% CAGR vs -21.8%).
Cytek Biosciences, Inc. develops, manufactures and sells high-performance flow cytometry systems, associated reagents and analysis software. Its solutions serve life science research, clinical diagnostics and biopharmaceutical sectors, with a global customer base across North America, Europe and the Asia-Pacific region.
System1 is an American Internet advertising company. Formerly known as OpenMail, it was founded in 2013. It describes itself as operating a "Responsive Acquisition Marketing Platform", and cites privacy as one of its principal foci, although it has been criticized for its influence on privacy-focused properties, including search engine Startpage.com. It is headquartered in Marina del Rey, California.
CTKB vs SST — Head-to-Head
Income Statement — Q4 FY2025 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $62.1M | $51.9M |
| Net Profit | $-44.1M | $-13.5M |
| Gross Margin | 52.9% | 41.0% |
| Operating Margin | -9.0% | -33.6% |
| Net Margin | -70.9% | -26.0% |
| Revenue YoY | 8.1% | -31.3% |
| Net Profit YoY | -557.1% | 4.8% |
| EPS (diluted) | — | $-3.58 |
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 | $62.1M | $51.9M | ||
| Q3 25 | $52.3M | $61.6M | ||
| Q2 25 | $45.6M | $78.1M | ||
| Q1 25 | $41.5M | $74.5M | ||
| Q4 24 | $57.5M | $75.6M | ||
| Q3 24 | $51.5M | $88.8M | ||
| Q2 24 | $46.6M | $94.6M | ||
| Q1 24 | $44.9M | $84.9M |
| Q4 25 | $-44.1M | $-13.5M | ||
| Q3 25 | $-5.5M | $-18.5M | ||
| Q2 25 | $-5.6M | $-17.5M | ||
| Q1 25 | $-11.4M | $-15.9M | ||
| Q4 24 | $9.6M | $-14.2M | ||
| Q3 24 | $941.0K | $-23.6M | ||
| Q2 24 | $-10.4M | $-26.4M | ||
| Q1 24 | $-6.2M | $-10.5M |
| Q4 25 | 52.9% | 41.0% | ||
| Q3 25 | 52.7% | 36.9% | ||
| Q2 25 | 52.3% | 35.7% | ||
| Q1 25 | 48.6% | 38.2% | ||
| Q4 24 | 58.5% | 42.1% | ||
| Q3 24 | 56.3% | 28.0% | ||
| Q2 24 | 54.6% | 27.6% | ||
| Q1 24 | 51.3% | 21.9% |
| Q4 25 | -9.0% | -33.6% | ||
| Q3 25 | -17.6% | -25.3% | ||
| Q2 25 | -23.3% | -20.4% | ||
| Q1 25 | -36.1% | -17.6% | ||
| Q4 24 | 5.2% | -15.7% | ||
| Q3 24 | -8.2% | -24.6% | ||
| Q2 24 | -18.3% | -30.8% | ||
| Q1 24 | -23.9% | -30.4% |
| Q4 25 | -70.9% | -26.0% | ||
| Q3 25 | -10.5% | -30.1% | ||
| Q2 25 | -12.2% | -22.4% | ||
| Q1 25 | -27.5% | -21.3% | ||
| Q4 24 | 16.8% | -18.7% | ||
| Q3 24 | 1.8% | -26.6% | ||
| Q2 24 | -22.4% | -27.9% | ||
| Q1 24 | -13.8% | -12.4% |
| Q4 25 | — | $-3.58 | ||
| Q3 25 | — | $-2.30 | ||
| Q2 25 | — | $-2.23 | ||
| Q1 25 | — | $-0.21 | ||
| Q4 24 | — | $-3.41 | ||
| Q3 24 | — | $-3.37 | ||
| Q2 24 | — | $-3.80 | ||
| Q1 24 | — | $-0.16 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $90.9M | $86.9M |
| Total DebtLower is stronger | — | $305.1M |
| Stockholders' EquityBook value | $341.7M | $30.5M |
| Total Assets | $461.5M | $405.0M |
| Debt / EquityLower = less leverage | — | 10.01× |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $90.9M | $86.9M | ||
| Q3 25 | $93.3M | $54.6M | ||
| Q2 25 | $75.5M | $63.6M | ||
| Q1 25 | $95.3M | $43.9M | ||
| Q4 24 | $98.7M | $63.6M | ||
| Q3 24 | $162.3M | $69.1M | ||
| Q2 24 | $177.9M | $75.7M | ||
| Q1 24 | $168.8M | $69.9M |
| Q4 25 | — | $305.1M | ||
| Q3 25 | — | $259.2M | ||
| Q2 25 | — | $263.3M | ||
| Q1 25 | — | $267.4M | ||
| Q4 24 | — | $255.1M | ||
| Q3 24 | — | $259.2M | ||
| Q2 24 | — | $263.3M | ||
| Q1 24 | — | $268.6M |
| Q4 25 | $341.7M | $30.5M | ||
| Q3 25 | $378.6M | $42.7M | ||
| Q2 25 | $377.6M | $58.2M | ||
| Q1 25 | $379.6M | $67.2M | ||
| Q4 24 | $395.7M | $80.3M | ||
| Q3 24 | $385.5M | $90.3M | ||
| Q2 24 | $389.1M | $109.4M | ||
| Q1 24 | $392.6M | $131.7M |
| Q4 25 | $461.5M | $405.0M | ||
| Q3 25 | $494.9M | $385.2M | ||
| Q2 25 | $493.3M | $429.2M | ||
| Q1 25 | $482.6M | $419.2M | ||
| Q4 24 | $499.5M | $459.1M | ||
| Q3 24 | $491.2M | $479.3M | ||
| Q2 24 | $483.7M | $511.3M | ||
| Q1 24 | $492.1M | $521.1M |
| Q4 25 | — | 10.01× | ||
| Q3 25 | — | 6.07× | ||
| Q2 25 | — | 4.53× | ||
| Q1 25 | — | 3.98× | ||
| Q4 24 | — | 3.18× | ||
| Q3 24 | — | 2.87× | ||
| Q2 24 | — | 2.41× | ||
| Q1 24 | — | 2.04× |
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 | $-771.0K | $-10.6M |
| Free Cash FlowOCF − Capex | $-1.8M | — |
| FCF MarginFCF / Revenue | -2.9% | — |
| Capex IntensityCapex / Revenue | 1.6% | 0.0% |
| Cash ConversionOCF / Net Profit | — | — |
| TTM Free Cash FlowTrailing 4 quarters | $-8.8M | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $-771.0K | $-10.6M | ||
| Q3 25 | $-3.9M | $-2.1M | ||
| Q2 25 | $108.0K | $24.5M | ||
| Q1 25 | $-125.0K | $-15.9M | ||
| Q4 24 | $2.0M | $772.0K | ||
| Q3 24 | $13.2M | $-5.0K | ||
| Q2 24 | $6.2M | $10.0M | ||
| Q1 24 | $4.0M | $-16.0M |
| Q4 25 | $-1.8M | — | ||
| Q3 25 | $-4.6M | — | ||
| Q2 25 | $-1.5M | — | ||
| Q1 25 | $-974.0K | $-16.0M | ||
| Q4 24 | $1.1M | — | ||
| Q3 24 | $12.2M | $-36.0K | ||
| Q2 24 | $5.2M | — | ||
| Q1 24 | $3.4M | — |
| Q4 25 | -2.9% | — | ||
| Q3 25 | -8.7% | — | ||
| Q2 25 | -3.2% | — | ||
| Q1 25 | -2.3% | -21.5% | ||
| Q4 24 | 1.9% | — | ||
| Q3 24 | 23.7% | -0.0% | ||
| Q2 24 | 11.0% | — | ||
| Q1 24 | 7.6% | — |
| Q4 25 | 1.6% | 0.0% | ||
| Q3 25 | 1.3% | 0.0% | ||
| Q2 25 | 3.5% | 0.0% | ||
| Q1 25 | 2.0% | 0.1% | ||
| Q4 24 | 1.6% | 0.0% | ||
| Q3 24 | 2.0% | 0.0% | ||
| Q2 24 | 2.3% | 0.0% | ||
| Q1 24 | 1.3% | 0.0% |
| Q4 25 | — | — | ||
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | 0.21× | — | ||
| Q3 24 | 14.05× | — | ||
| Q2 24 | — | — | ||
| Q1 24 | — | — |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
CTKB
| Products | $46.6M | 75% |
| Services | $15.5M | 25% |
SST
Segment breakdown not available.
