Open the map

Merck & Co.MRK

Big pharma · NYSE · USA

$142.38
Down 0.3% todayClose

Up 35.7% this year and +10.7% since June 26, level with the life science sector at +10.7%. Merck & Co. supplies 2 mapped companies and buys from 2.

Market cap
$349B
This year
+35.7%
1 year
+63.0%
P/E
109.9
P/S
5.2
P/B
8.3

Price vs the life science sector

since Jun 26MRKLife science sector, equal weight
Merck & Co. (MRK) vs the Life science sector indexDaily closes from Jun 26, 2026 to Oct 8, 2026, each line rebased to its own first value. MRK: +10.7% from Jun 26, 2026 to Oct 8, 2026. Life science sector index: +10.7% from Jun 26, 2026 to Oct 8, 2026.0%+10%+20%Jun 26AugSepOct 8MRK +10.7%Sector +10.7% Merck & Co. (MRK) vs the Life science sector indexDaily closes from Jun 26, 2026 to Oct 8, 2026, each line rebased to its own first value. MRK: +10.7% from Jun 26, 2026 to Oct 8, 2026. Life science sector index: +10.7% from Jun 26, 2026 to Oct 8, 2026.0%+10%+20%Jun 26AugSepOct 8MRK+10.7%Sector+10.7%

Supply chain

2 suppliers · 2 customers
SUPPLIERS →→ CUSTOMERSIQVIA Holdings (IQV)IQVIQVIA Holdings+0.3%West Pharmaceutical Services (WST)WSTWest Pharmaceutical…−0.9%Cencora (COR)CORCencora+1.3%McKesson (MCK)MCKMcKesson+2.2%MRKMerck & Co.

Suppliers 2

Customers 2

Open the full chain →

About Merck & Co.

Keytruda is the centre of the oncology business, which sits next to a substantial vaccines portfolio. Animal health forms a third division.

Theme exposure

Big pharmaOncologyVaccines

Products

  • Oncology (Keytruda)
  • Vaccines
  • Animal health

Competitors

Risks

  • Dependence on Keytruda
  • Patent cliff (2028)

Same segment: Big pharma

Large, diversified pharmaceutical groups with broad portfolios across therapeutic areas. Segment 2 of 8 in the Medicine, pharma & life science value chain.

Johnson & JohnsonJNJ−0.8%AbbVieABBV+0.4%PfizerPFE−0.6%Bristol Myers SquibbBMY−0.2%ZoetisZTS+2.1%

Compare MRK

Side by side with the largest companies in the same segment.

MRK vs JNJMRK vs ABBVMRK vs PFEMRK vs BMYMRK vs ZTS

See where Merck & Co. sits in the full Medicine, pharma & life science map: every segment from upstream suppliers to end markets, with daily metrics.

Open the Life science value chain →