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

Cytek Biosciences, Inc. is the larger business by last-quarter revenue ($62.1M vs $48.2M, roughly 1.3× NAPCO SECURITY TECHNOLOGIES, INC). NAPCO SECURITY TECHNOLOGIES, INC runs the higher net margin — 28.0% vs -70.9%, a 99.0% gap on every dollar of revenue. On growth, NAPCO SECURITY TECHNOLOGIES, INC posted the faster year-over-year revenue change (12.2% vs 8.1%). NAPCO SECURITY TECHNOLOGIES, INC produced more free cash flow last quarter ($14.5M vs $-1.8M). Over the past eight quarters, Cytek Biosciences, Inc.'s revenue compounded faster (17.7% CAGR vs -1.1%).

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.

Napco Security Technologies, Inc. was set up in 1969 and now is based in Amityville, New York. The company focuses on security products, such as electronic locking devices, alarm systems, and building access control systems. The company was formerly known as Napco Security Systems, Inc.

CTKB vs NSSC — Head-to-Head

Bigger by revenue
CTKB
CTKB
1.3× larger
CTKB
$62.1M
$48.2M
NSSC
Growing faster (revenue YoY)
NSSC
NSSC
+4.1% gap
NSSC
12.2%
8.1%
CTKB
Higher net margin
NSSC
NSSC
99.0% more per $
NSSC
28.0%
-70.9%
CTKB
More free cash flow
NSSC
NSSC
$16.3M more FCF
NSSC
$14.5M
$-1.8M
CTKB
Faster 2-yr revenue CAGR
CTKB
CTKB
Annualised
CTKB
17.7%
-1.1%
NSSC

Income Statement — Q4 FY2025 vs Q2 FY2026

Metric
CTKB
CTKB
NSSC
NSSC
Revenue
$62.1M
$48.2M
Net Profit
$-44.1M
$13.5M
Gross Margin
52.9%
58.6%
Operating Margin
-9.0%
30.6%
Net Margin
-70.9%
28.0%
Revenue YoY
8.1%
12.2%
Net Profit YoY
-557.1%
29.0%
EPS (diluted)
$0.38

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
NSSC
NSSC
Q4 25
$62.1M
$48.2M
Q3 25
$52.3M
$49.2M
Q2 25
$45.6M
$50.7M
Q1 25
$41.5M
$44.0M
Q4 24
$57.5M
$42.9M
Q3 24
$51.5M
$44.0M
Q2 24
$46.6M
$50.3M
Q1 24
$44.9M
$49.3M
Net Profit
CTKB
CTKB
NSSC
NSSC
Q4 25
$-44.1M
$13.5M
Q3 25
$-5.5M
$12.2M
Q2 25
$-5.6M
$11.6M
Q1 25
$-11.4M
$10.1M
Q4 24
$9.6M
$10.5M
Q3 24
$941.0K
$11.2M
Q2 24
$-10.4M
$13.5M
Q1 24
$-6.2M
$13.2M
Gross Margin
CTKB
CTKB
NSSC
NSSC
Q4 25
52.9%
58.6%
Q3 25
52.7%
56.6%
Q2 25
52.3%
52.8%
Q1 25
48.6%
57.2%
Q4 24
58.5%
57.0%
Q3 24
56.3%
55.9%
Q2 24
54.6%
55.3%
Q1 24
51.3%
53.8%
Operating Margin
CTKB
CTKB
NSSC
NSSC
Q4 25
-9.0%
30.6%
Q3 25
-17.6%
27.7%
Q2 25
-23.3%
23.8%
Q1 25
-36.1%
25.4%
Q4 24
5.2%
26.0%
Q3 24
-8.2%
26.9%
Q2 24
-18.3%
27.7%
Q1 24
-23.9%
29.4%
Net Margin
CTKB
CTKB
NSSC
NSSC
Q4 25
-70.9%
28.0%
Q3 25
-10.5%
24.7%
Q2 25
-12.2%
22.9%
Q1 25
-27.5%
23.0%
Q4 24
16.8%
24.4%
Q3 24
1.8%
25.4%
Q2 24
-22.4%
26.9%
Q1 24
-13.8%
26.8%
EPS (diluted)
CTKB
CTKB
NSSC
NSSC
Q4 25
$0.38
Q3 25
$0.34
Q2 25
$0.33
Q1 25
$0.28
Q4 24
$0.28
Q3 24
$0.30
Q2 24
$0.36
Q1 24
$0.36

Balance Sheet & Financial Strength

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

Metric
CTKB
CTKB
NSSC
NSSC
Cash + ST InvestmentsLiquidity on hand
$90.9M
$115.4M
Total DebtLower is stronger
Stockholders' EquityBook value
$341.7M
$184.8M
Total Assets
$461.5M
$212.8M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CTKB
CTKB
NSSC
NSSC
Q4 25
$90.9M
$115.4M
Q3 25
$93.3M
$105.8M
Q2 25
$75.5M
$99.2M
Q1 25
$95.3M
$89.3M
Q4 24
$98.7M
$99.2M
Q3 24
$162.3M
$91.3M
Q2 24
$177.9M
$70.7M
Q1 24
$168.8M
$60.9M
Stockholders' Equity
CTKB
CTKB
NSSC
NSSC
Q4 25
$341.7M
$184.8M
Q3 25
$378.6M
$176.1M
Q2 25
$377.6M
$168.6M
Q1 25
$379.6M
$161.5M
Q4 24
$395.7M
$174.2M
Q3 24
$385.5M
$178.6M
Q2 24
$389.1M
$178.9M
Q1 24
$392.6M
$168.2M
Total Assets
CTKB
CTKB
NSSC
NSSC
Q4 25
$461.5M
$212.8M
Q3 25
$494.9M
$206.0M
Q2 25
$493.3M
$198.1M
Q1 25
$482.6M
$190.9M
Q4 24
$499.5M
$202.7M
Q3 24
$491.2M
$209.9M
Q2 24
$483.7M
$207.8M
Q1 24
$492.1M
$194.8M

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
NSSC
NSSC
Operating Cash FlowLast quarter
$-771.0K
$15.1M
Free Cash FlowOCF − Capex
$-1.8M
$14.5M
FCF MarginFCF / Revenue
-2.9%
30.1%
Capex IntensityCapex / Revenue
1.6%
1.2%
Cash ConversionOCF / Net Profit
1.12×
TTM Free Cash FlowTrailing 4 quarters
$-8.8M
$53.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CTKB
CTKB
NSSC
NSSC
Q4 25
$-771.0K
$15.1M
Q3 25
$-3.9M
$11.6M
Q2 25
$108.0K
$14.6M
Q1 25
$-125.0K
$13.4M
Q4 24
$2.0M
$13.5M
Q3 24
$13.2M
$12.0M
Q2 24
$6.2M
$14.3M
Q1 24
$4.0M
$12.3M
Free Cash Flow
CTKB
CTKB
NSSC
NSSC
Q4 25
$-1.8M
$14.5M
Q3 25
$-4.6M
$11.4M
Q2 25
$-1.5M
$14.4M
Q1 25
$-974.0K
$13.3M
Q4 24
$1.1M
$12.4M
Q3 24
$12.2M
$11.3M
Q2 24
$5.2M
$13.8M
Q1 24
$3.4M
$12.0M
FCF Margin
CTKB
CTKB
NSSC
NSSC
Q4 25
-2.9%
30.1%
Q3 25
-8.7%
23.3%
Q2 25
-3.2%
28.4%
Q1 25
-2.3%
30.3%
Q4 24
1.9%
28.8%
Q3 24
23.7%
25.8%
Q2 24
11.0%
27.4%
Q1 24
7.6%
24.3%
Capex Intensity
CTKB
CTKB
NSSC
NSSC
Q4 25
1.6%
1.2%
Q3 25
1.3%
0.4%
Q2 25
3.5%
0.5%
Q1 25
2.0%
0.1%
Q4 24
1.6%
2.6%
Q3 24
2.0%
1.5%
Q2 24
2.3%
1.1%
Q1 24
1.3%
0.7%
Cash Conversion
CTKB
CTKB
NSSC
NSSC
Q4 25
1.12×
Q3 25
0.96×
Q2 25
1.26×
Q1 25
1.32×
Q4 24
0.21×
1.29×
Q3 24
14.05×
1.08×
Q2 24
1.06×
Q1 24
0.94×

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%

NSSC
NSSC

Segment breakdown not available.

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