Trinseo (TSE) - Market capitalization

Market cap: $8.27 Million USD

As of May 2026 Trinseo has a market cap of $8.27 Million USD. This makes Trinseo the world's 10515th 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.

Market cap history of Trinseo from 2014 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	$8.27 M	-58.18%
2025	$19.79 M	-89.18%
2024	$0.18 B	-37.87%
2023	$0.29 B	-62.91%
2022	$0.79 B	-61.02%
2021	$2.03 B	3.61%
2020	$1.96 B	35.51%
2019	$1.45 B	-23.8%
2018	$1.90 B	-39.98%
2017	$3.17 B	19.83%
2016	$2.64 B	92.5%
2015	$1.37 B	61.63%
2014	$0.85 B

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Celanese CE	$5.74 B	69,299.08%	🇺🇸 USA
Dow DOW	$25.95 B	313,408.73%	🇺🇸 USA
Westlake Corporation WLK	$11.35 B	137,022.16%	🇺🇸 USA
Kraton KRA	$1.49 B	17,999.74%	🇺🇸 USA

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of Trinseo (TSE)

Market cap: $8.27 Million USD