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CytomX Therapeutics, Inc. (CTMX) stock

CTMXNasdaqPharmaceutical PreparationsFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Nov 5, 2026Score 8/30
$2.13+0.15 (+7.58%)

Close on Nov 11, 2026Market cap $464.13MP/E –Yield –

CytomX Therapeutics, Inc. saw revenue fall 87.7% to $14.03M over the twelve months to Sep 30, 2026. Operating income fell 508.2% to -$94.89M, moving the operating margin from 20.5% to -676.5%. Free cash flow was -$51.00M. At the latest close the market valued the company at $464.13M.

Revenue
$14.03M
-87.7% vs. a year earlier
Operating income
-$94.89M
-508.2% vs. a year earlier
Free cash flow
-$51.00M
TTM Q3 2026
EPS, diluted
-$0.46
-215.0% vs. a year earlier

Key statistics

Valuation at the latest close; fundamentals over the trailing twelve months, balances at Sep 30, 2026

Valuation

Market cap
$464.13M
P/E ratio
–
Price to sales
33.09
Price to book
1.63
Dividend yield
–
Free cash flow yield
-10.99%

Fundamentals

Revenue
$14.03M
Net income
-$85.42M
EPS, diluted
-$0.46
Free cash flow
-$51.00M
Book value per share
$1.30
Diluted shares
219M

Trading

Next earnings
Mar 15, 2027 (estimated, before the open)
Previous close
$1.98
Open
$1.99
Day's range
$1.96 – $2.17
Volume
4,992,599
Average volume (20 days)
5,273,666
Index membership
Russell 2000 (since Jun 2026), Russell 3000
Beta (5 years)
1.60
52-week range
$1.90 – $8.21
RSI (14 days)
42.0
Volatility (1 year)
85.5%
Relative volume
1.32×
WACC
12.9%

On 2 of our idea lists: More cash than they're worth, Most shorted (a warning list)

Index membership is inferred from the holdings of funds that track each index (IWM, IWV), as reported to the SEC for Jun 30, 2026. Join dates come from quarterly fund reports since 2019, so they are accurate to the quarter.

Market cap history

Month-end market cap since 2015, using shares outstanding reported at the time

Total return vs. the S&P 500

Price change plus reinvested dividends, to the close on Nov 11, 2026. The S&P 500 is measured by the SPY fund.

PeriodCTMXS&P 500DifferenceCTMX per yearS&P 500 per year
1 month-17.1%-2.4%−14.7 pts
3 months-38.3%-1.2%−37.1 pts
Year to date-50.0%+12.3%−62.3 pts
1 year-48.0%+12.4%−60.5 pts
3 years+82.1%+78.8%+3.2 pts+22.1%+21.4%
5 years-69.6%+75.2%−144.8 pts-21.2%+11.9%
10 years-81.0%+311.1%−392.1 pts-15.3%+15.2%

Fourteen years at a glance

Fiscal years 2012 to 2025 and trailing twelve months, USD

Revenue

$14.03M-87.7% YoY

Operating income

-$94.89M-508.2% YoY

Net income

-$85.42M-404.9% YoY

EPS, diluted

-$0.46-215.0% YoY

Free cash flow

-$51.00M
Reported periodTrailing twelve months

Press releases

Releases CytomX Therapeutics filed with the SEC as exhibits to Form 8-K or 6-K

All press releases and earnings

About CytomX Therapeutics

Pharmaceutical Preparations

CytomX is a clinical-stage biopharmaceutical company that develops conditionally activated biologic therapies for cancer treatment. Its PROBODY platform designs biologics that stay inactive in healthy tissue and activate in tumor microenvironments through protease cleavage. The pipeline includes antibody-drug conjugates, T-cell engagers, cytokines, and messenger RNA. Its lead investigational programs include varsetatug masetecan, an antibody-drug conjugate targeting EpCAM for colorectal cancer, and CX-801, a masked interferon alpha-2b cytokine for advanced melanoma. The company collaborates with pharmaceutical partners, including Amgen, Bristol Myers Squibb, Astellas, Regeneron, and Moderna, and targets oncology patient populations.

Company profile, executives and history

CytomX Therapeutics stock: common questions

What is CytomX Therapeutics's stock price?

CTMX closed at $2.13 on Nov 11, 2026, up 7.58% on the day. Over the past 52 weeks it traded between $1.90 and $8.21.

What is CytomX Therapeutics's market cap?

CytomX Therapeutics was worth $464.13M at the close on Nov 11, 2026: the share price times the diluted shares outstanding.

What is CTMX's P/E ratio?

CytomX Therapeutics lost money over the twelve months to Sep 30, 2026 (diluted EPS -$0.46), so it has no meaningful P/E ratio.

How much revenue does CytomX Therapeutics make?

CytomX Therapeutics reported revenue of $14.03M for the twelve months to Sep 30, 2026, down 87.7% from a year earlier.

Does CytomX Therapeutics pay a dividend?

No. CytomX Therapeutics has not paid a cash dividend over the last twelve months.

When does CytomX Therapeutics report earnings next?

CytomX Therapeutics is expected to report Q4 FY2026 results on Mar 15, 2027, before the open. The date is estimated from its past reporting pattern until the company confirms it.

How has CTMX stock performed over the past year?

Including dividends, CTMX returned -48.0% over the past year, against +12.4% for the S&P 500.

How many CTMX shares are sold short?

45M shares were sold short at the latest FINRA report, 21.08% of the float, or 12.0 days of average trading volume.

Who are CytomX Therapeutics's competitors?

Companies most similar to CytomX Therapeutics by business, industry and size include JANX, PYXS, CBIO, PRLD, ADAG.

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