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

CarParts.com, Inc. is the larger business by last-quarter revenue ($120.4M vs $62.1M, roughly 1.9× Cytek Biosciences, Inc.). CarParts.com, Inc. runs the higher net margin — -9.6% vs -70.9%, a 61.3% gap on every dollar of revenue. On growth, Cytek Biosciences, Inc. posted the faster year-over-year revenue change (8.1% vs -9.8%). Over the past eight quarters, Cytek Biosciences, Inc.'s revenue compounded faster (17.7% CAGR vs -8.6%).

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.

Genuine Parts Company (GPC) is an American automotive and industrial parts distributor based in Atlanta, Georgia. Established by brothers Carlyle and Malcolm Fraser in 1928, the company has approximately 60,000 employees. In addition to the United States, GPC has operated in Australasia, Belgium, Canada, France, Germany, Mexico, the Netherlands, Poland, and the United Kingdom. GPC's subsidiaries include industrial parts distributor Motion as well as NAPA Auto Parts, which primarily sells part...

CTKB vs PRTS — Head-to-Head

Bigger by revenue
PRTS
PRTS
1.9× larger
PRTS
$120.4M
$62.1M
CTKB
Growing faster (revenue YoY)
CTKB
CTKB
+17.9% gap
CTKB
8.1%
-9.8%
PRTS
Higher net margin
PRTS
PRTS
61.3% more per $
PRTS
-9.6%
-70.9%
CTKB
Faster 2-yr revenue CAGR
CTKB
CTKB
Annualised
CTKB
17.7%
-8.6%
PRTS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
CTKB
CTKB
PRTS
PRTS
Revenue
$62.1M
$120.4M
Net Profit
$-44.1M
$-11.6M
Gross Margin
52.9%
33.2%
Operating Margin
-9.0%
Net Margin
-70.9%
-9.6%
Revenue YoY
8.1%
-9.8%
Net Profit YoY
-557.1%
25.0%
EPS (diluted)
$-0.82

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
PRTS
PRTS
Q4 25
$62.1M
$120.4M
Q3 25
$52.3M
$127.8M
Q2 25
$45.6M
$151.9M
Q1 25
$41.5M
$147.4M
Q4 24
$57.5M
$133.5M
Q3 24
$51.5M
$144.8M
Q2 24
$46.6M
$144.3M
Q1 24
$44.9M
Net Profit
CTKB
CTKB
PRTS
PRTS
Q4 25
$-44.1M
$-11.6M
Q3 25
$-5.5M
$-10.9M
Q2 25
$-5.6M
$-12.7M
Q1 25
$-11.4M
$-15.3M
Q4 24
$9.6M
$-15.4M
Q3 24
$941.0K
$-10.0M
Q2 24
$-10.4M
$-8.7M
Q1 24
$-6.2M
Gross Margin
CTKB
CTKB
PRTS
PRTS
Q4 25
52.9%
33.2%
Q3 25
52.7%
33.1%
Q2 25
52.3%
32.8%
Q1 25
48.6%
32.1%
Q4 24
58.5%
32.5%
Q3 24
56.3%
35.2%
Q2 24
54.6%
33.5%
Q1 24
51.3%
Operating Margin
CTKB
CTKB
PRTS
PRTS
Q4 25
-9.0%
Q3 25
-17.6%
-7.9%
Q2 25
-23.3%
-8.2%
Q1 25
-36.1%
-10.3%
Q4 24
5.2%
-11.6%
Q3 24
-8.2%
-6.9%
Q2 24
-18.3%
-6.0%
Q1 24
-23.9%
Net Margin
CTKB
CTKB
PRTS
PRTS
Q4 25
-70.9%
-9.6%
Q3 25
-10.5%
-8.5%
Q2 25
-12.2%
-8.4%
Q1 25
-27.5%
-10.4%
Q4 24
16.8%
-11.5%
Q3 24
1.8%
-6.9%
Q2 24
-22.4%
-6.0%
Q1 24
-13.8%
EPS (diluted)
CTKB
CTKB
PRTS
PRTS
Q4 25
$-0.82
Q3 25
$-0.19
Q2 25
$-0.23
Q1 25
$-0.27
Q4 24
$-0.28
Q3 24
$-0.17
Q2 24
$-0.15
Q1 24

Balance Sheet & Financial Strength

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

Metric
CTKB
CTKB
PRTS
PRTS
Cash + ST InvestmentsLiquidity on hand
$90.9M
$25.8M
Total DebtLower is stronger
Stockholders' EquityBook value
$341.7M
$53.5M
Total Assets
$461.5M
$184.9M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CTKB
CTKB
PRTS
PRTS
Q4 25
$90.9M
$25.8M
Q3 25
$93.3M
Q2 25
$75.5M
Q1 25
$95.3M
Q4 24
$98.7M
Q3 24
$162.3M
Q2 24
$177.9M
Q1 24
$168.8M
Stockholders' Equity
CTKB
CTKB
PRTS
PRTS
Q4 25
$341.7M
$53.5M
Q3 25
$378.6M
$64.2M
Q2 25
$377.6M
$62.4M
Q1 25
$379.6M
$72.8M
Q4 24
$395.7M
$85.2M
Q3 24
$385.5M
$97.2M
Q2 24
$389.1M
$103.9M
Q1 24
$392.6M
Total Assets
CTKB
CTKB
PRTS
PRTS
Q4 25
$461.5M
$184.9M
Q3 25
$494.9M
$200.3M
Q2 25
$493.3M
$189.6M
Q1 25
$482.6M
$216.5M
Q4 24
$499.5M
$210.6M
Q3 24
$491.2M
$227.6M
Q2 24
$483.7M
$238.0M
Q1 24
$492.1M

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

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CTKB
CTKB
PRTS
PRTS
Q4 25
$-771.0K
Q3 25
$-3.9M
$-6.4M
Q2 25
$108.0K
$-25.6M
Q1 25
$-125.0K
$5.5M
Q4 24
$2.0M
$1.8M
Q3 24
$13.2M
$8.5M
Q2 24
$6.2M
$-3.6M
Q1 24
$4.0M
Free Cash Flow
CTKB
CTKB
PRTS
PRTS
Q4 25
$-1.8M
Q3 25
$-4.6M
$-8.3M
Q2 25
$-1.5M
$-27.9M
Q1 25
$-974.0K
$3.4M
Q4 24
$1.1M
$-631.0K
Q3 24
$12.2M
$4.9M
Q2 24
$5.2M
$-10.8M
Q1 24
$3.4M
FCF Margin
CTKB
CTKB
PRTS
PRTS
Q4 25
-2.9%
Q3 25
-8.7%
-6.5%
Q2 25
-3.2%
-18.3%
Q1 25
-2.3%
2.3%
Q4 24
1.9%
-0.5%
Q3 24
23.7%
3.4%
Q2 24
11.0%
-7.5%
Q1 24
7.6%
Capex Intensity
CTKB
CTKB
PRTS
PRTS
Q4 25
1.6%
Q3 25
1.3%
1.5%
Q2 25
3.5%
1.5%
Q1 25
2.0%
1.4%
Q4 24
1.6%
1.8%
Q3 24
2.0%
2.5%
Q2 24
2.3%
4.9%
Q1 24
1.3%
Cash Conversion
CTKB
CTKB
PRTS
PRTS
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
CTKB

Products$46.6M75%
Services$15.5M25%

PRTS
PRTS

Segment breakdown not available.

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