As of December 2025 Trinseo has a market cap of A$35.63 Million. This makes Trinseo the world's 10114th 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 10th, 2025 the market cap of Trinseo was reported to be: