Idemitsu Kosan Co.,Ltd.
Idemitsu Kosan Co.,Ltd. (IDKOF) Market Cap & Net Worth
Live market cap, enterprise value, and global rank — multi-year chart and annual table below.
idkof · market cap & enterprise value · FMP · as of Jun 5, 2026
Core market cap & key metrics
As of Jun 5, 2026, Idemitsu Kosan Co.,Ltd. (IDKOF) has a market cap — also referred to as its net worth or valuation — of $8.2B, making it one of the top most valuable companies globally. Market Cap = $6.75 × 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 Energy sectorAbout Market Cap, Net Worth & Valuation
Idemitsu Kosan Co.,Ltd. (IDKOF) has a market cap — also referred to as its net worth or valuation — of $8.2B as of Jun 5, 2026, making it the #0 most valuable company globally. Market Cap = Stock Price × Shares Outstanding.
Idemitsu Kosan Co.,Ltd. reached its all-time high market cap of $2.07T on Apr 30, 2026. Comparing the Idemitsu Kosan Co.,Ltd. market cap history illustrates one of the most extraordinary corporate growth stories.
Investors frequently compare Idemitsu Kosan Co.,Ltd. net worth vs peers and ask how Idemitsu Kosan Co.,Ltd. valuation compares to other countries. Its market cap reflects continued investor confidence.
Frequently Asked Questions
IDKOF market cap · 6 questionsIdemitsu Kosan Co.,Ltd.'s net worth — measured as market capitalization — is $8.2B as of Jun 5, 2026. It ranks #0 globally. Market Cap = $$6.75 (price) × shares outstanding.