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

Zhihu Inc. is the larger business by last-quarter revenue ($92.0M vs $62.1M, roughly 1.5× Cytek Biosciences, Inc.). Zhihu Inc. runs the higher net margin — 32.7% vs -70.9%, a 103.6% gap on every dollar of revenue. Over the past eight quarters, Cytek Biosciences, Inc.'s revenue compounded faster (17.7% CAGR vs -19.0%).

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.

Zhihu is a Chinese social question and answer site and news aggregator. Originally based in Chengdu and with creators from Sichuan, China, the website launched on January 26, 2011. The number of registered users on Zhihu exceeded 10 million by the end of 2013, and reached 17 million as of May 2015, with 250 million monthly page views.

CTKB vs ZH — Head-to-Head

Bigger by revenue
ZH
ZH
1.5× larger
ZH
$92.0M
$62.1M
CTKB
Higher net margin
ZH
ZH
103.6% more per $
ZH
32.7%
-70.9%
CTKB
Faster 2-yr revenue CAGR
CTKB
CTKB
Annualised
CTKB
17.7%
-19.0%
ZH

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
CTKB
CTKB
ZH
ZH
Revenue
$62.1M
$92.0M
Net Profit
$-44.1M
$30.1M
Gross Margin
52.9%
53.6%
Operating Margin
-9.0%
Net Margin
-70.9%
32.7%
Revenue YoY
8.1%
Net Profit YoY
-557.1%
EPS (diluted)

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
ZH
ZH
Q1 26
$92.0M
Q4 25
$62.1M
Q3 25
$52.3M
$92.6M
Q2 25
$45.6M
$100.1M
Q1 25
$41.5M
$100.6M
Q4 24
$57.5M
Q3 24
$51.5M
$120.4M
Q2 24
$46.6M
$128.5M
Net Profit
CTKB
CTKB
ZH
ZH
Q1 26
$30.1M
Q4 25
$-44.1M
Q3 25
$-5.5M
Q2 25
$-5.6M
Q1 25
$-11.4M
Q4 24
$9.6M
Q3 24
$941.0K
$-1.3M
Q2 24
$-10.4M
$-11.1M
Gross Margin
CTKB
CTKB
ZH
ZH
Q1 26
53.6%
Q4 25
52.9%
Q3 25
52.7%
61.3%
Q2 25
52.3%
62.5%
Q1 25
48.6%
61.8%
Q4 24
58.5%
Q3 24
56.3%
63.9%
Q2 24
54.6%
59.6%
Operating Margin
CTKB
CTKB
ZH
ZH
Q1 26
Q4 25
-9.0%
Q3 25
-17.6%
-15.1%
Q2 25
-23.3%
-12.7%
Q1 25
-36.1%
Q4 24
5.2%
Q3 24
-8.2%
-10.0%
Q2 24
-18.3%
-19.7%
Net Margin
CTKB
CTKB
ZH
ZH
Q1 26
32.7%
Q4 25
-70.9%
Q3 25
-10.5%
Q2 25
-12.2%
Q1 25
-27.5%
Q4 24
16.8%
Q3 24
1.8%
-1.1%
Q2 24
-22.4%
-8.6%

Balance Sheet & Financial Strength

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

Metric
CTKB
CTKB
ZH
ZH
Cash + ST InvestmentsLiquidity on hand
$90.9M
$481.8M
Total DebtLower is stronger
Stockholders' EquityBook value
$341.7M
$554.1M
Total Assets
$461.5M
$742.3M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CTKB
CTKB
ZH
ZH
Q1 26
$481.8M
Q4 25
$90.9M
Q3 25
$93.3M
$383.5M
Q2 25
$75.5M
$446.5M
Q1 25
$95.3M
$446.5M
Q4 24
$98.7M
Q3 24
$162.3M
$458.0M
Q2 24
$177.9M
$434.7M
Stockholders' Equity
CTKB
CTKB
ZH
ZH
Q1 26
$554.1M
Q4 25
$341.7M
Q3 25
$378.6M
$578.9M
Q2 25
$377.6M
$587.4M
Q1 25
$379.6M
$573.2M
Q4 24
$395.7M
Q3 24
$385.5M
$619.2M
Q2 24
$389.1M
$605.5M
Total Assets
CTKB
CTKB
ZH
ZH
Q1 26
$742.3M
Q4 25
$461.5M
Q3 25
$494.9M
$772.8M
Q2 25
$493.3M
$802.2M
Q1 25
$482.6M
$783.1M
Q4 24
$499.5M
Q3 24
$491.2M
$856.2M
Q2 24
$483.7M
$840.5M

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
ZH
ZH
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
ZH
ZH
Q1 26
Q4 25
$-771.0K
Q3 25
$-3.9M
Q2 25
$108.0K
Q1 25
$-125.0K
Q4 24
$2.0M
Q3 24
$13.2M
Q2 24
$6.2M
Free Cash Flow
CTKB
CTKB
ZH
ZH
Q1 26
Q4 25
$-1.8M
Q3 25
$-4.6M
Q2 25
$-1.5M
Q1 25
$-974.0K
Q4 24
$1.1M
Q3 24
$12.2M
Q2 24
$5.2M
FCF Margin
CTKB
CTKB
ZH
ZH
Q1 26
Q4 25
-2.9%
Q3 25
-8.7%
Q2 25
-3.2%
Q1 25
-2.3%
Q4 24
1.9%
Q3 24
23.7%
Q2 24
11.0%
Capex Intensity
CTKB
CTKB
ZH
ZH
Q1 26
Q4 25
1.6%
Q3 25
1.3%
Q2 25
3.5%
Q1 25
2.0%
Q4 24
1.6%
Q3 24
2.0%
Q2 24
2.3%
Cash Conversion
CTKB
CTKB
ZH
ZH
Q1 26
Q4 25
Q3 25
Q2 25
Q1 25
Q4 24
0.21×
Q3 24
14.05×
Q2 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%

ZH
ZH

Segment breakdown not available.

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