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

Cytek Biosciences, Inc. is the larger business by last-quarter revenue ($62.1M vs $48.5M, roughly 1.3× ULTRALIFE CORP). ULTRALIFE CORP runs the higher net margin — -15.3% vs -70.9%, a 55.6% gap on every dollar of revenue. On growth, ULTRALIFE CORP posted the faster year-over-year revenue change (10.6% vs 8.1%). ULTRALIFE CORP produced more free cash flow last quarter ($607.0K vs $-1.8M). Over the past eight quarters, Cytek Biosciences, Inc.'s revenue compounded faster (17.7% CAGR vs 7.5%).

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.

Ultralife Corporation designs and manufactures batteries and communications systems worldwide. Ultralife serves government and defense, medical, safety and security, energy, robotics and other customers across the globe through the design and development of a range of products. Founded in 1991 when launched as an Initial Public Offering (IPO) evolving from Kodak’s Ultra Technologies battery division, and headquartered in Newark, New York, the Company’s business segments include battery and en...

CTKB vs ULBI — Head-to-Head

Bigger by revenue
CTKB
CTKB
1.3× larger
CTKB
$62.1M
$48.5M
ULBI
Growing faster (revenue YoY)
ULBI
ULBI
+2.4% gap
ULBI
10.6%
8.1%
CTKB
Higher net margin
ULBI
ULBI
55.6% more per $
ULBI
-15.3%
-70.9%
CTKB
More free cash flow
ULBI
ULBI
$2.4M more FCF
ULBI
$607.0K
$-1.8M
CTKB
Faster 2-yr revenue CAGR
CTKB
CTKB
Annualised
CTKB
17.7%
7.5%
ULBI

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
CTKB
CTKB
ULBI
ULBI
Revenue
$62.1M
$48.5M
Net Profit
$-44.1M
$-7.4M
Gross Margin
52.9%
24.9%
Operating Margin
-9.0%
-21.9%
Net Margin
-70.9%
-15.3%
Revenue YoY
8.1%
10.6%
Net Profit YoY
-557.1%
-3925.8%
EPS (diluted)
$-35.00

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
ULBI
ULBI
Q4 25
$62.1M
$48.5M
Q3 25
$52.3M
$43.4M
Q2 25
$45.6M
$48.6M
Q1 25
$41.5M
$50.7M
Q4 24
$57.5M
$43.9M
Q3 24
$51.5M
$35.7M
Q2 24
$46.6M
$43.0M
Q1 24
$44.9M
$41.9M
Net Profit
CTKB
CTKB
ULBI
ULBI
Q4 25
$-44.1M
$-7.4M
Q3 25
$-5.5M
$-1.2M
Q2 25
$-5.6M
$879.0K
Q1 25
$-11.4M
$1.9M
Q4 24
$9.6M
$194.0K
Q3 24
$941.0K
$258.0K
Q2 24
$-10.4M
$3.0M
Q1 24
$-6.2M
$2.9M
Gross Margin
CTKB
CTKB
ULBI
ULBI
Q4 25
52.9%
24.9%
Q3 25
52.7%
22.2%
Q2 25
52.3%
23.9%
Q1 25
48.6%
25.1%
Q4 24
58.5%
24.2%
Q3 24
56.3%
24.3%
Q2 24
54.6%
26.9%
Q1 24
51.3%
27.4%
Operating Margin
CTKB
CTKB
ULBI
ULBI
Q4 25
-9.0%
-21.9%
Q3 25
-17.6%
-2.2%
Q2 25
-23.3%
4.6%
Q1 25
-36.1%
6.7%
Q4 24
5.2%
3.4%
Q3 24
-8.2%
1.4%
Q2 24
-18.3%
9.1%
Q1 24
-23.9%
9.7%
Net Margin
CTKB
CTKB
ULBI
ULBI
Q4 25
-70.9%
-15.3%
Q3 25
-10.5%
-2.8%
Q2 25
-12.2%
1.8%
Q1 25
-27.5%
3.7%
Q4 24
16.8%
0.4%
Q3 24
1.8%
0.7%
Q2 24
-22.4%
6.9%
Q1 24
-13.8%
6.9%
EPS (diluted)
CTKB
CTKB
ULBI
ULBI
Q4 25
$-35.00
Q3 25
$-0.07
Q2 25
$0.05
Q1 25
$0.02
Q4 24
$37.72
Q3 24
$0.02
Q2 24
$0.18
Q1 24
$0.08

Balance Sheet & Financial Strength

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

Metric
CTKB
CTKB
ULBI
ULBI
Cash + ST InvestmentsLiquidity on hand
$90.9M
$9.3M
Total DebtLower is stronger
Stockholders' EquityBook value
$341.7M
$130.0M
Total Assets
$461.5M
$216.9M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CTKB
CTKB
ULBI
ULBI
Q4 25
$90.9M
$9.3M
Q3 25
$93.3M
Q2 25
$75.5M
Q1 25
$95.3M
Q4 24
$98.7M
$6.9M
Q3 24
$162.3M
$6.8M
Q2 24
$177.9M
$6.7M
Q1 24
$168.8M
$10.1M
Total Debt
CTKB
CTKB
ULBI
ULBI
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
$55.0M
Q3 24
Q2 24
Q1 24
Stockholders' Equity
CTKB
CTKB
ULBI
ULBI
Q4 25
$341.7M
$130.0M
Q3 25
$378.6M
$137.3M
Q2 25
$377.6M
$138.4M
Q1 25
$379.6M
$136.4M
Q4 24
$395.7M
$134.0M
Q3 24
$385.5M
$134.5M
Q2 24
$389.1M
$133.2M
Q1 24
$392.6M
$128.8M
Total Assets
CTKB
CTKB
ULBI
ULBI
Q4 25
$461.5M
$216.9M
Q3 25
$494.9M
$222.2M
Q2 25
$493.3M
$221.0M
Q1 25
$482.6M
$223.8M
Q4 24
$499.5M
$220.5M
Q3 24
$491.2M
$172.4M
Q2 24
$483.7M
$169.8M
Q1 24
$492.1M
$180.6M
Debt / Equity
CTKB
CTKB
ULBI
ULBI
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
0.41×
Q3 24
Q2 24
Q1 24

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
ULBI
ULBI
Operating Cash FlowLast quarter
$-771.0K
$1.5M
Free Cash FlowOCF − Capex
$-1.8M
$607.0K
FCF MarginFCF / Revenue
-2.9%
1.3%
Capex IntensityCapex / Revenue
1.6%
1.8%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-8.8M
$7.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CTKB
CTKB
ULBI
ULBI
Q4 25
$-771.0K
$1.5M
Q3 25
$-3.9M
$198.0K
Q2 25
$108.0K
$5.9M
Q1 25
$-125.0K
$3.4M
Q4 24
$2.0M
$3.0M
Q3 24
$13.2M
$4.7M
Q2 24
$6.2M
$8.9M
Q1 24
$4.0M
$-81.0K
Free Cash Flow
CTKB
CTKB
ULBI
ULBI
Q4 25
$-1.8M
$607.0K
Q3 25
$-4.6M
$-797.0K
Q2 25
$-1.5M
$4.8M
Q1 25
$-974.0K
$2.5M
Q4 24
$1.1M
$2.4M
Q3 24
$12.2M
$4.2M
Q2 24
$5.2M
$8.6M
Q1 24
$3.4M
$-453.0K
FCF Margin
CTKB
CTKB
ULBI
ULBI
Q4 25
-2.9%
1.3%
Q3 25
-8.7%
-1.8%
Q2 25
-3.2%
10.0%
Q1 25
-2.3%
4.9%
Q4 24
1.9%
5.6%
Q3 24
23.7%
11.6%
Q2 24
11.0%
19.9%
Q1 24
7.6%
-1.1%
Capex Intensity
CTKB
CTKB
ULBI
ULBI
Q4 25
1.6%
1.8%
Q3 25
1.3%
2.3%
Q2 25
3.5%
2.3%
Q1 25
2.0%
1.8%
Q4 24
1.6%
1.4%
Q3 24
2.0%
1.7%
Q2 24
2.3%
0.8%
Q1 24
1.3%
0.9%
Cash Conversion
CTKB
CTKB
ULBI
ULBI
Q4 25
Q3 25
Q2 25
6.75×
Q1 25
1.81×
Q4 24
0.21×
15.70×
Q3 24
14.05×
18.40×
Q2 24
3.01×
Q1 24
-0.03×

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%

ULBI
ULBI

Commercial$36.3M75%
Government Defense$9.6M20%
Communications Systems Segment$2.6M5%

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