TotalMarketCap

Merck & Co.

MRKNYSE United StatesHealth CareBiotechnology: Pharmaceutical Preparations

Market cap

$362.231 B

$146.94 -2.28%

Close of 6 Nov 2026

As of 6 Nov 2026, Merck & Co. (MRK) has a market capitalization of $362.2B. Market cap measures the value of outstanding equity at market prices; company totals combine applicable share classes. Prices and market caps come from Nasdaq, with financial fundamentals from SEC filings. See sources and calculation details.

Revenue

$65.0B

#62 by revenue

Earnings

$18.3B

#26 by earnings

Shares outstanding

2,465,245,688

Latest filing cover page

P/E ratio

19.8

Cap ÷ net income

Biotechnology: Pharmaceutical Preparations, ranked by market cap

All 498 →
  1. #2Johnson & JohnsonJNJ$656.3B
  2. #3AbbVieABBV$510.3B
  3. #4Merck & Co.MRK$362.2B
  4. #5NovartisNVS$309.0B
  5. #6AstrazenecaAZN$290.1B

What if Merck & Co. were worth as much as…

Open the what-if tool →

Gold $28.2T

$11,453.98

Per share 78.0× higher

Bitcoin $1.53T

$619.75

Per share 4.22× higher

Apple $5.02T

$2,034.60

Per share 13.8× higher

Or at a round number

$500.0B$1.00T$2.00T$5.00T

Where these numbers come from

Share counts and financials for Merck & Co. are taken from its own SEC filings via EDGAR: public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Read the methodology.