Join

Compare · MRK vs XLO

MRK vs XLO

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

Summary

  • Both MRK and XLO operate in Biotechnology: Pharmaceutical Preparations (Health Care), so they compete in similar markets.
  • MRK is the larger of the two at $283.78B, about 5175.1x XLO ($54.8M).
  • Over the past year, MRK is up 41.2% and XLO is down 12.0% - MRK leads by 53.2 points.
  • MRK has been more active in the news (23 items in the past 4 weeks vs 10 for XLO).
  • MRK has more recent analyst coverage (25 ratings vs 7 for XLO).
PerformanceMRK+46.09%XLO-12.04%
2025-06-17+0.00%2026-06-16
MetricMRKXLO
Company
Merck & Company Inc.
Xilio Therapeutics Inc.
Price
$114.44-0.40%
$8.45+6.29%
Market cap
$283.78B
$54.8M
1M return
+2.71%
-5.53%
1Y return
+41.20%
-12.04%
Industry
Biotechnology: Pharmaceutical Preparations
Biotechnology: Pharmaceutical Preparations
Exchange
NYSE
NASDAQ
IPO
2021
News (4w)
23
10
Recent ratings
25
7
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.

XLO

Xilio Therapeutics Inc.

Xilio Therapeutics, Inc., a biotechnology company, designs immunotherapies to improve the immune system for cancer patients. Its checkpoint inhibitor programs include XTX101, is a clinical-stage, tumor-selective anti-CTLA-4 mAb that is in Phase 1 clinical trials in patients with solid tumors; and cytokine programs comprise XTX202, XTX301, and XTX401, which are modified form of IL-2 that is masked with a protein domain to prevent binding activity until cleaved off by tumor microenvironment (TME)-associated proteases. Xilio Therapeutics, Inc. was incorporated in 2020 and is headquartered in Waltham, Massachusetts.