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Compare · CTMX vs MRK

CTMX vs MRK

Side-by-side comparison of CytomX Therapeutics Inc. (CTMX) and Merck & Company Inc. (MRK): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both CTMX and MRK operate in Biotechnology: Pharmaceutical Preparations (Health Care), so they compete in similar markets.
  • MRK is the larger of the two at $295.19B, about 461.2x CTMX ($640.0M).
  • Over the past year, CTMX is up 11.8% and MRK is up 50.7% - MRK leads by 38.9 points.
  • MRK has been more active in the news (27 items in the past 4 weeks vs 5 for CTMX).
  • MRK has more recent analyst coverage (25 ratings vs 22 for CTMX).
PerformanceCTMX+11.76%MRK+50.70%
2025-06-09+0.00%2026-06-08
MetricCTMXMRK
Company
CytomX Therapeutics Inc.
Merck & Company Inc.
Price
$2.94-1.34%
$119.49-1.15%
Market cap
$640.0M
$295.19B
1M return
-26.38%
+6.40%
1Y return
+11.76%
+50.70%
Industry
Biotechnology: Pharmaceutical Preparations
Biotechnology: Pharmaceutical Preparations
Exchange
NASDAQ
NYSE
IPO
2015
News (4w)
5
27
Recent ratings
22
25
CTMX

CytomX Therapeutics Inc.

CytomX Therapeutics, Inc. operates as an oncology-focused biopharmaceutical company in the United States. The company develops antibody therapeutics based on its Probody technology platform for the treatment of cancer. The company's product candidates include CX-2009, an antibody drug conjugates (ADC) against CD166, which is in Phase II clinical trials for the treatment of breast cancer; CX-2029 that is in Phase II clinical trials for the treatment of squamous non-small cell lung cancer, head and neck squamous cell carcinoma, esophageal and gastro-esophageal junction cancers, and diffuse large B-cell lymphoma; BMS-986249, a CTLA-4 Probody therapeutic drug, which is in Phase I/II clinical trials for the treatment of metastatic melanoma; and BMS-986288, an anti-CTLA-4 Probody drug, which is in Phase I clinical trials for the treatment of solid tumors. It also develops CX-2043, a conditionally activated ADC targeting the epithelial cell adhesion molecule, as well as CX-904, a conditionally activated epidermal growth factor receptor for the treatment of solid tumor. The company has strategic collaborations with AbbVie Ireland Unlimited Company, Amgen, Inc., Bristol-Myers Squibb Company, ImmunoGen, Inc., Pfizer Inc., and Astellas Pharma Inc. to develop Probody therapeutics. CytomX Therapeutics, Inc. was founded in 2008 and is headquartered in South San Francisco, California.

MRK

Merck & Company Inc.

Merck & Co., Inc. operates as a healthcare company worldwide. It operates through two segments, Pharmaceutical and Animal Health segments. The Pharmaceutical segment offers human health pharmaceutical products in the areas of oncology, hospital acute care, immunology, neuroscience, virology, cardiovascular, diabetes, and women's health, as well as vaccine products. The Animal Health segment provides discovers, develops, manufactures, and markets a range of veterinary pharmaceuticals, vaccines, and health management solutions and services, as well as a suite of digitally connected identification, traceability, and monitoring products. The company has collaborations with AstraZeneca PLC; Bayer AG; Eisai Co., Ltd.; and Ridgeback Biotherapeutics. It serves drug wholesalers and retailers, hospitals, and government agencies; managed health care providers, such as health maintenance organizations, pharmacy benefit managers, and other institutions; and physicians and physician distributors, veterinarians, and animal producers. The company has collaboration agreement with Gilead Sciences, Inc. to co-develop and co-commercialize long-acting investigational treatment combinations of Lenacapavir and Islatravir in HIV; Amathus Therapeutics to develop treatments for neurodegenerative diseases; and Linnaeus Therapeutics, Inc. to evaluate LNS8801 in combination with KEYTRUDA for patients with advanced cancer. It also has a collaboration with Biomed X Gmbh for building on ongoing research projects in the fields of oncology (DNA damage response and RNA splicing) and autoimmunity (intestinal epithelial barrier in autoimmune diseases); and a collaboration agreement with NGM Biopharmaceuticals, Inc. to focus primarily on the development of novel medicines for unmet patient needs in retinal and CVM diseases, including heart failure. Merck & Co., Inc. was founded in 1891 and is headquartered in Kenilworth, New Jersey.