As of December 2025 Trinseo has a market cap of โฌ16.89 Million. This makes Trinseo the world's 10144th 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 24th, 2025 the market cap of Trinseo was reported to be: