As of December 2025 Trinseo has a market cap of A$34.3 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 8th, 2025 the market cap of Trinseo was reported to be: