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Side-by-side financial comparison of Cytek Biosciences, Inc. (CTKB) and ILLUMINA, INC. (ILMN). Click either name above to swap in a different company.

ILLUMINA, INC. is the larger business by last-quarter revenue ($1.1B vs $62.1M, roughly 17.8× Cytek Biosciences, Inc.). ILLUMINA, INC. runs the higher net margin — 16.8% vs -70.9%, a 87.8% gap on every dollar of revenue. On growth, Cytek Biosciences, Inc. posted the faster year-over-year revenue change (8.1% vs -1.6%). ILLUMINA, INC. produced more free cash flow last quarter ($335.0M vs $-1.8M). Over the past eight quarters, Cytek Biosciences, Inc.'s revenue compounded faster (17.7% CAGR vs 0.8%).

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.

Illumina, Inc. is an American biotechnology company, headquartered in San Diego, California. Incorporated on April 1, 1998, Illumina develops, manufactures, and markets integrated systems for the analysis of genetic variation and biological function. The company provides a line of products and services that serves the sequencing, genotyping and gene expression, and proteomics markets, and serves more than 155 countries.

CTKB vs ILMN — Head-to-Head

Bigger by revenue
ILMN
ILMN
17.8× larger
ILMN
$1.1B
$62.1M
CTKB
Growing faster (revenue YoY)
CTKB
CTKB
+9.7% gap
CTKB
8.1%
-1.6%
ILMN
Higher net margin
ILMN
ILMN
87.8% more per $
ILMN
16.8%
-70.9%
CTKB
More free cash flow
ILMN
ILMN
$336.8M more FCF
ILMN
$335.0M
$-1.8M
CTKB
Faster 2-yr revenue CAGR
CTKB
CTKB
Annualised
CTKB
17.7%
0.8%
ILMN

Income Statement — Q4 2025 vs Q4 2025

Metric
CTKB
CTKB
ILMN
ILMN
Revenue
$62.1M
$1.1B
Net Profit
$-44.1M
$186.0M
Gross Margin
52.9%
65.9%
Operating Margin
-9.0%
15.8%
Net Margin
-70.9%
16.8%
Revenue YoY
8.1%
-1.6%
Net Profit YoY
-557.1%
205.7%
EPS (diluted)
$1.16

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.

Revenue
CTKB
CTKB
ILMN
ILMN
Q4 25
$62.1M
Q3 25
$52.3M
Q2 25
$45.6M
Q1 25
$41.5M
Q4 24
$57.5M
$1.1B
Q3 24
$51.5M
$1.1B
Q2 24
$46.6M
$1.1B
Q1 24
$44.9M
$1.1B
Net Profit
CTKB
CTKB
ILMN
ILMN
Q4 25
$-44.1M
Q3 25
$-5.5M
Q2 25
$-5.6M
Q1 25
$-11.4M
Q4 24
$9.6M
$186.0M
Q3 24
$941.0K
$705.0M
Q2 24
$-10.4M
$-2.0B
Q1 24
$-6.2M
$-126.0M
Gross Margin
CTKB
CTKB
ILMN
ILMN
Q4 25
52.9%
Q3 25
52.7%
Q2 25
52.3%
Q1 25
48.6%
Q4 24
58.5%
65.9%
Q3 24
56.3%
69.0%
Q2 24
54.6%
64.8%
Q1 24
51.3%
62.0%
Operating Margin
CTKB
CTKB
ILMN
ILMN
Q4 25
-9.0%
Q3 25
-17.6%
Q2 25
-23.3%
Q1 25
-36.1%
Q4 24
5.2%
15.8%
Q3 24
-8.2%
68.6%
Q2 24
-18.3%
-147.2%
Q1 24
-23.9%
-10.3%
Net Margin
CTKB
CTKB
ILMN
ILMN
Q4 25
-70.9%
Q3 25
-10.5%
Q2 25
-12.2%
Q1 25
-27.5%
Q4 24
16.8%
16.8%
Q3 24
1.8%
65.3%
Q2 24
-22.4%
-178.8%
Q1 24
-13.8%
-11.7%
EPS (diluted)
CTKB
CTKB
ILMN
ILMN
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
$1.16
Q3 24
$4.42
Q2 24
$-12.48
Q1 24
$-0.79

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
CTKB
CTKB
ILMN
ILMN
Cash + ST InvestmentsLiquidity on hand
$90.9M
$93.0M
Total DebtLower is stronger
Stockholders' EquityBook value
$341.7M
$2.4B
Total Assets
$461.5M
$6.3B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CTKB
CTKB
ILMN
ILMN
Q4 25
$90.9M
Q3 25
$93.3M
Q2 25
$75.5M
Q1 25
$95.3M
Q4 24
$98.7M
$93.0M
Q3 24
$162.3M
$70.0M
Q2 24
$177.9M
$74.0M
Q1 24
$168.8M
Stockholders' Equity
CTKB
CTKB
ILMN
ILMN
Q4 25
$341.7M
Q3 25
$378.6M
Q2 25
$377.6M
Q1 25
$379.6M
Q4 24
$395.7M
$2.4B
Q3 24
$385.5M
$2.1B
Q2 24
$389.1M
$1.4B
Q1 24
$392.6M
$5.7B
Total Assets
CTKB
CTKB
ILMN
ILMN
Q4 25
$461.5M
Q3 25
$494.9M
Q2 25
$493.3M
Q1 25
$482.6M
Q4 24
$499.5M
$6.3B
Q3 24
$491.2M
$6.0B
Q2 24
$483.7M
$6.1B
Q1 24
$492.1M
$10.0B

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
CTKB
CTKB
ILMN
ILMN
Operating Cash FlowLast quarter
$-771.0K
$364.0M
Free Cash FlowOCF − Capex
$-1.8M
$335.0M
FCF MarginFCF / Revenue
-2.9%
30.3%
Capex IntensityCapex / Revenue
1.6%
2.6%
Cash ConversionOCF / Net Profit
1.96×
TTM Free Cash FlowTrailing 4 quarters
$-8.8M
$709.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CTKB
CTKB
ILMN
ILMN
Q4 25
$-771.0K
Q3 25
$-3.9M
Q2 25
$108.0K
Q1 25
$-125.0K
Q4 24
$2.0M
$364.0M
Q3 24
$13.2M
$316.0M
Q2 24
$6.2M
$80.0M
Q1 24
$4.0M
$77.0M
Free Cash Flow
CTKB
CTKB
ILMN
ILMN
Q4 25
$-1.8M
Q3 25
$-4.6M
Q2 25
$-1.5M
Q1 25
$-974.0K
Q4 24
$1.1M
$335.0M
Q3 24
$12.2M
$284.0M
Q2 24
$5.2M
$49.0M
Q1 24
$3.4M
$41.0M
FCF Margin
CTKB
CTKB
ILMN
ILMN
Q4 25
-2.9%
Q3 25
-8.7%
Q2 25
-3.2%
Q1 25
-2.3%
Q4 24
1.9%
30.3%
Q3 24
23.7%
26.3%
Q2 24
11.0%
4.4%
Q1 24
7.6%
3.8%
Capex Intensity
CTKB
CTKB
ILMN
ILMN
Q4 25
1.6%
Q3 25
1.3%
Q2 25
3.5%
Q1 25
2.0%
Q4 24
1.6%
2.6%
Q3 24
2.0%
3.0%
Q2 24
2.3%
2.8%
Q1 24
1.3%
3.3%
Cash Conversion
CTKB
CTKB
ILMN
ILMN
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
0.21×
1.96×
Q3 24
14.05×
0.45×
Q2 24
Q1 24

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

CTKB
CTKB

Products$46.6M75%
Services$15.5M25%

ILMN
ILMN

Sequencing$1.0B91%
Microarray$101.0M9%
Investee$7.0M1%

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