As of February 2026 Trinseo has a market cap of A$16.53 Million. This makes Trinseo the world's 10280th 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 Feb 17th, 2026 the market cap of Trinseo was reported to be: