As of December 2025 Trinseo has a market cap of ยฃ17.06 Million. This makes Trinseo the world's 10126th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Dec 7th, 2025 the market cap of Trinseo was reported to be: