Costco Wholesale Corporation
Costco Wholesale Corporation (COST) Market Cap & Net Worth
Live market cap, enterprise value, and global rank — multi-year chart and annual table below.
cost · market cap & enterprise value · FMP · as of Jun 5, 2026
Core market cap & key metrics
As of Jun 5, 2026, Costco Wholesale Corporation (COST) has a market cap — also referred to as its net worth or valuation — of $431.0B, making it #2 most valuable companies globally. Market Cap = $971.87 × 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 Consumer Defensive sectorAbout Market Cap, Net Worth & Valuation
Costco Wholesale Corporation (COST) has a market cap — also referred to as its net worth or valuation — of $431.0B as of Jun 5, 2026, making it the #2 most valuable company globally. Market Cap = Stock Price × Shares Outstanding.
Costco Wholesale Corporation reached its all-time high market cap of $471.6B on May 19, 2026. Comparing the Costco Wholesale Corporation market cap history illustrates one of the most extraordinary corporate growth stories.
Investors frequently compare Costco Wholesale Corporation net worth vs peers and ask how Costco Wholesale Corporation valuation compares to other countries. Its market cap reflects continued investor confidence.
Frequently Asked Questions
COST market cap · 6 questionsCostco Wholesale Corporation's net worth — measured as market capitalization — is $431.0B as of Jun 5, 2026. It ranks #2 globally. Market Cap = $$971.87 (price) × shares outstanding.