Merck & Co., Inc.
Merck & Co., Inc. (MRK) Market Cap & Net Worth
Live market cap, enterprise value, and global rank — multi-year chart and annual table below.
mrk · market cap & enterprise value · FMP · as of Jun 5, 2026
Core market cap & key metrics
As of Jun 5, 2026, Merck & Co., Inc. (MRK) has a market cap — also referred to as its net worth or valuation — of $298.3B, making it #6 most valuable companies globally. Market Cap = $120.79 × shares outstanding.
Market cap history — by year
* 2026 = year-to-date · Year-end market cap · Source: FMP
Market cap by year
Compared to Peers
View Healthcare sectorAbout Market Cap, Net Worth & Valuation
Merck & Co., Inc. (MRK) has a market cap — also referred to as its net worth or valuation — of $298.3B as of Jun 5, 2026, making it the #6 most valuable company globally. Market Cap = Stock Price × Shares Outstanding.
Merck & Co., Inc. reached its all-time high market cap of $289.9B on Jun 24, 2024. Comparing the Merck & Co., Inc. market cap history illustrates one of the most extraordinary corporate growth stories.
Investors frequently compare Merck & Co., Inc. net worth vs peers and ask how Merck & Co., Inc. valuation compares to other countries. Its market cap reflects continued investor confidence.
Frequently Asked Questions
MRK market cap · 6 questionsMerck & Co., Inc.'s net worth — measured as market capitalization — is $298.3B as of Jun 5, 2026. It ranks #6 globally. Market Cap = $$120.79 (price) × shares outstanding.