Cytek Biosciences (CTKB) stock

Cell analyzers , market cap $819M

Cell analysis solutions and cell analyzers

Market cap $819M

$5.77

-5.87%

After-hours $5.77 0.00%

As of 4:03 PM ET after-hours, delayed 15+ min · Live for Pro members

Quality Score

Below Average

In its industry

#10of 15

Life Science Tools

Checks firing

3of 14

Trending up

From 52-week high

-8.9%

Above the 200-day

CTKB's Quality Score fell 4 points on Mon, Nov 2, to 3.

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Why CTKB is down 6% today

Down 5.9% today with life science tool stocks: 14 of 15 are down, 5.3% on average; the S&P 500 is down 0.3%.

Beats the market

Up 61% in a year while the S&P 500 rose 12%.

“The increase in revenue was driven by strong revenue performance in the US and continued growth in service and reagent revenue worldwide.”

Cytek Biosciences' May 7 release said

Sources: Price history, Oct 30, 2026; Company release, May 7, 2026

1 more reason, free with an account →1 more reason why CTKB beats the market, from its filings, with the other side, the company's words, and the timeline, for Pro members.

Key facts on CTKB

Key facts on CTKB
Since its Nov 2021 high	Down 76% profit $3M → an $80.6M loss a year
Latest filing	8-K, Sep 29 Changed its bylaws or fiscal year

1 more reason behind CTKB's 3, free with an account →2 more reasons behind CTKB's 3, for Pro members.

CTKB in the news

TodayWith its group.

What's next

Mon Nov 9: UBS Global Healthcare Conference 2026Investor conference · date confirmed.

1 more date ahead: the conference, for Pro members.

CTKB catalysts

Coming up

After its last 4 reports it closed +2.1% on average, higher 2 of 4 times.

2 past catalysts since 2022, with sizes and sources, for Pro members.Get in free →

Why CTKB scores 3

Below Averagefor quality, not price, 3 of 14 chart checks firingWhat the Quality Score means

+3Chart checks 3 of 14 firing right now, one point each
+3Long-term trend above a rising 200-⁠day average, near its 52-⁠week high

Profit subtractsRead on the last four quarters against the four before, or the last full year where no quarters are filed.
Volatility subtractsA daily range of 5% or more with nothing behind it (no profit or cash flow, sales shrinking, or 10% more shares outstanding with no free cash flow): -1, or -2 from 8%.
Cash flow subtracts-1 when free cash flow over the last four quarters is negative.

No effect today: Run-up, Size, Growth, Dilution, Persistence, and News.

What every line is worth, and the reason behind it, on CTKB and every other stock.Get in free →

Price, score, chart checks, and the industry rank are from a snapshot taken at 4:03 PM ET, at least 15 minutes behind. How we rank stocks.

Tested. Our top-⁠scored stocks returned 2.2x the average stock over the next month. How we tested it

Alert me when CTKB's Quality Score turns up

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Here is what Pro members see.

The same page for Pro members, on AMD
Its Quality Score and rank, the line that drives it, and the live price.
The full chart
A year of candles to start, out to the whole history, with insider trades marked and the Quality Score under the price.
Every line of the score
Price action, the company, and signals, each with its points, on CTKB and every other stock.
CEOs buying their own stock
Every CEO buy, biggest names first. Sort, filter, save the list, and set optional alerts.
Congress trades
A member's trades, newest first, each with its amount. Sort and filter the whole list.
14 chart checks, read for you
The ones firing on the stock, each in plain words, its rule a tap away.
Earnings, week by week
Who reports each day, and how each stock took its last four reports.
FDA dates, counted down
Each date in the company's words, its cash against the date, and an optional alert before it.
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Each theme's stocks ranked by Quality Score, live. Here, AI chips.
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The ten highest Quality Scores at each close, kept day by day, week by week.
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CTKB has 3 of 14 chart checks firing

Trend1 of 5 shown

MA FAN 21 EMA W.EMA HH/HL 52W HI

Volume1 of 3 shown

VOL VDU U/D VOL

Tight range1 of 3 shown

ATR SQZ SQUEEZE NR7

Buying1 of 3 shown

OBV+CLOSE HI SPRING

The other 10 checks on CTKB, and all 14 on every stock.Get in free →

CTKB RSI today: 54.2, above its 50-day and 200-day averages

Not scored

Not in the Quality Score: over 20 years of tests, 2006 to 2026, they added no edge.

RSI 1454.2
Above 50, below 70.
MACD (12, 26, 9)Above signal
Crossed above its signal line 5 sessions ago.
50-day average$5.30
The price is 8.9% above it.
200-day average$4.65
The price is 24.1% above it.
50/200 crossGolden cross
The 50-day crossed above the 200-day on Sep 16.
ADX 1423.1
Under 25, with +DI above -DI.
Support$5.04
Swing low from Oct 8, 12.6% below the price.
Resistance$6.04
Swing high from Jan 12, 4.7% above the price.
52-week high$6.33
From Oct 29, 9.8% above the price.
52-week low$3.31
From May 14, 42.6% below the price.
Chart patternRising channel
Lines over the Aug 14 and Oct 6 highs and under the Sep 11 and Oct 8 lows.
Bollinger Bands (20, 2)Inside
The bands run from $4.93 to $6.22.
Volume0.9x
Against its 20-day average, for the time of day.

The deep dive on CTKB

What it does and how it makes money5 findingsServices made up 28% of its revenue in fiscal 2025 ($57.3M of $201M), against 24% in fiscal 2024; product sales 72%.SEC filing · Feb 26, 2026
Where it stands2 findingsFor Pro members2 findings on where CTKB stands: its cash, debt, and share count, for Pro members
What changed in its filings4 findings"On February 13, 2018, Becton, Dickinson, and Company ('BD') filed a lawsuit against the Company alleging trade secret misappropriation and copyright infringement." (10-Q for the quarter to Jun 30, 2026)SEC filing · Aug 5, 2026A new heading in its "Risk Factors" this year: "Disruptions at the FDA, the SEC, and other government agencies and regulatory authorities from funding cuts, personnel losses, regulatory reform, government shutdowns …" (10-K for fiscal 2025; not in fiscal 2024's)SEC filing · Feb 26, 2026, against the one of Feb 28, 2025Backlog rose 6% in a year, to $47.3M on Jun 30, 2026 from $44.8M: sales under contract, not yet delivered.Filed figures, Jun 30, 2026
Who holds and trades it2 findingsFor Pro members2 findings on who holds and trades CTKB, for Pro members

9 more findings on CTKB, each with its source, for Pro membersGet in free →

How CTKB ranks in Life Science Tools

CTKB is #10 of 15 by Quality Score among Laboratory Analytical Instruments.

How CTKB ranks in Life Science Tools
1	AAgilent	5/14	16
2	MTDMettler-⁠Toledo International	6/14	15
3	RVTYRevvity	4/14	12
	BIOBio-⁠Rad Laboratories		Open for its score
	BRKRBruker		Open for its score
	ILMNIllumina		Open for its score
	MASS908 Devices		Open for its score
10	CTKBCytek Biosciences	3/14	3

When does CTKB report earnings, and what happens after?

Reports Wed Nov 4, after the close (in 2 days). Confirmed.

What an earnings report is: every 3 months, a company tells everyone how much it sold and earned. We read the figures, the outlook, and how the stock moved after.

What CTKB reported on Aug 5, 2026

The quarter

The figures are not read from the release yet.

“General and administrative expenses were $16.8 million for the second quarter of 2026, a 24% increase compared to the second quarter of 2025 due to litigation-related expenses, severance and personnel costs.”

The filing on EDGAR

Where the sales came from

CTKB's results filing gives no sales by line in a table we read.

The outlook

The outlook the company gave, by period
Measure	Figure
Full year 2026
Total revenue	$207M to $212Mraised

Figures as filed (SEC filing, Aug 5)

The numbers

Market value: $819M; today
Sales: $207M; up 5.4% on the year
Free cash flow: -$12.1M; last 12 months

Sales grew 17% a year over 5 years, fiscal 2020 to 2025.

Its share count fell 2.7% a year over 3 years.

3 more figures, for Pro members.

No analyst estimates on Breakaway: every figure here is filed.

The whole report on CTKB: every line of its sales, every outlook beside the one it replaced, and the company's words, for Pro members.Get in free →

+1.8%-6.3%-0.5%

Feb 26May 7Aug 5

Reported	When	Gap	Reaction	5 sessions
Aug 5, 2026After close	After close	+4.5%	-0.5%	+14.3%
May 7, 2026After close	After close	-8.7%	-6.3%	-31.8%
Feb 26, 2026After close	After close	-3.6%	+1.8%	-0.5%

CTKB closed higher after 2 of its last 4 reports.

All 4 reports, and CTKB's Quality Score going into each

Everyone reporting earnings this week

CTKB sales and profit by year

Sales and profit by year

Sales grew every year from 2020 to 2025, to $201M. It made a profit in three of the six years.

Insiders trading CTKB

CTKB trades by Congress and the executive branch

One trade disclosed in the last six months. The newest:

SellDonald Trump$15K to $50KPresident (R)traded May 15, disclosed Jul 1(47 days later)

SellDonald TrumpPresident (R)$15K to $50Ktraded May 15, disclosed Jul 1(47 days later)

See what Congress is buying across the market

CTKB's officers and directors

Officers and directors with a Form 4 in the last 12 months.

Wenbin JiangPresident and CEO
William D. McCombeChief Financial Officer
Ming YanChief Technology Officer
Philippe BusqueSVP, Global Sales and Services
Valerie BarnettChief Legal Officer
Deborah J. NeffDirector
Glenn P. MuirDirector
Jack BallDirector

3 more officers and directors file at CTKB. Each page above names the rest.

See insider trades by person

Which ETFs hold CTKB?

In ETFs: CTKB is under 0.1% of VTI, the most of the 24 funds Breakaway covers, by their holdings as filed for Jun 30, 2026.

About Cytek Biosciences

Cytek Biosciences Inc is a cell analysis solutions company advancing the next generation of research and clinical tools with its novel technical approach of leveraging the full spectrum of fluorescence signatures from multiple lasers to distinguish fluorescent tags on single cells. Its patented FSP technology optimizes sensitivity and accuracy through its optical and electronic designs that utilize an inventive method of light detection and distribution to a specifically selected number and type of detectors. Its FSP cell analyzers, the Cytek Aurora, Northern Lights, and Cytek Aurora Evo systems, deliver high-resolution, high-content and high-sensitivity cell analysis and address the inherent limitations of other technologies.

702 employeesFremont, CAcytekbio.com

What Cytek Biosciences says it competes with

“We face significant competition from within the cell analysis and life sciences tools market.”

From its annual report, SEC filing · Feb 26, 2026

2 more sentences, what it says it does, and its sales by region, for Pro membersGet in free →

CTKB's score card

Cytek Biosciences (CTKB): Quality Score 3, Below Average, #10 of 15 in Life Science Tools, with its price, on Breakaway — The picture a link to this page shows when it is shared.

Pro members see every line of every stock's score.

What would turn CTKB's score around: 8 things
2 more filings explained, a plain line each
Real-⁠time prices, no delay

BreakawayJul 1Donald Trump sold CTKB$15K to $50K, disclosed Jul 1

Alerts are optional.

See CTKB's 14 chart checks

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Straight Answers

As of Nov 2, 2026: CTKB's Quality Score is 3 (Below Average), #10 of 15 in Laboratory Analytical Instruments.

Is CTKB a good stock to buy? What its Quality Score says

CTKB scores 3 today, which Breakaway calls Below Average. It is #10 of 15 in Laboratory Analytical Instruments by Quality Score, with 3 of 14 chart checks firing. Up 61% in a year while the S&P 500 rose 12%. Breakaway does not say whether to buy any stock: the score does not know your situation, and it is not a recommendation to buy or sell anything. Please do your own research.

What is CTKB's Quality Score?

CTKB scores 3 today, which Breakaway calls Below Average (0 to 5). That is #10 of 15 in Laboratory Analytical Instruments by Quality Score. The score adds up the chart checks, the trend, the company's filed sales, its profits, the news, insider trades, and Congress trades. The section above lists the lines behind CTKB's 3.

When does CTKB report earnings?

Reports Wed Nov 4, after the close, a date the company confirmed. CTKB closed higher after 2 of its last 4 reports. Past behavior, not a forecast.

Are the prices delayed?

Only on the public pages, which run at least 15 minutes behind. Pro members, and anyone on a guest pass, see real-time prices: the scanner refreshes every 15 seconds, and your watchlist every few seconds, pre-market and after hours included.