Trinseo (TSE) Stock Chart & Stock Price History $2.40 -0.01 (-0.21%) Closing price 03:59 PM EasternExtended Trading$2.36 -0.04 (-1.46%) As of 04:14 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisChartCompetitorsDividendEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Trinseo Stock Price Performance The Trinseo (TSE) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 44.94%, with a year-to-date return of -53.04%. In the past month, the stock has decreased 6.45%, reflecting recent market activity. As of the latest close, Trinseo traded at $2.39 with a market cap of $86.29 million and volume of 156,218 shares. Five years ago, the stock traded at $26.59, representing a 90.99% decrease over that period. At the time, it had a market cap of $953.27 million and a volume of 424,058 shares. Receive TSE Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Trinseo and its competitors with MarketBeat's FREE daily newsletter. Subscribe Now View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy. 5 Day Performance0.00%1 Month Performance-6.45%3 Month Performance-21.14%Year-To-Date Performance-53.04%1 Year Performance-44.94%5 Year Performance-90.99% TSE Stock Chart for Tuesday, September, 2, 2025 TSE Chart by TradingView Trinseo Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization09/01/2025$2.39$2.39$2.45$2.34156,218 shs$85.74 million08/29/2025$2.40$2.39-0.42%$2.45$2.34156,218 shs$85.74 million08/28/2025$2.45$2.40-2.04%$2.48$2.38137,551 shs$86.11 million08/27/2025$2.41$2.45+1.66%$2.51$2.39191,556 shs$87.90 million08/26/2025$2.52$2.41-4.60%$2.55$2.37200,892 shs$86.46 million08/25/2025$2.61$2.52-3.22%$2.64$2.50385,445 shs$90.64 million08/22/2025$2.21$2.61+18.14%$2.65$2.23442,226 shs$93.66 million08/21/2025$2.34$2.21-5.57%$2.35$2.17385,382 shs$79.27 million08/20/2025$2.34$2.34$2.39$2.31122,389 shs$83.94 million08/19/2025$2.41$2.34-3.11%$2.47$2.33252,699 shs$83.95 million Get the Latest News and Ratings for TSE and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Trinseo and its competitors with MarketBeat's FREE daily newsletter. 08/18/2025$2.51$2.41-3.98%$2.55$2.40297,319 shs$86.64 million08/15/2025$2.43$2.51+3.42%$2.60$2.44372,449 shs$90.23 million08/14/2025$2.51$2.43-3.31%$2.46$2.36300,265 shs$87.25 million08/13/2025$2.28$2.51+10.23%$2.54$2.26370,926 shs$90.24 million08/12/2025$2.06$2.28+10.80%$2.33$2.07349,384 shs$81.86 million08/11/2025$2.06$2.06-0.24%$2.08$1.90365,093 shs$73.88 million08/08/2025$2.06$2.06+0.24%$2.10$2.01489,403 shs$73.44 million08/07/2025$2.59$2.06-20.69%$2.30$2.021.26 million shs$73.26 million08/06/2025$2.70$2.59-4.04%$2.76$2.55344,708 shs$92.37 million08/05/2025$2.63$2.70+2.62%$2.78$2.63322,050 shs$96.26 million08/04/2025$2.56$2.63+2.77%$2.66$2.56393,208 shs$93.80 million08/01/2025$2.68$2.56-4.48%$2.63$2.53263,598 shs$91.26 million Related Companies Luxfer Stock Chart Aduro Clean Technologies Stock Chart ARQ Stock Chart Aemetis Stock Chart Verde Clean Fuels Stock Chart Flexible Solutions International Stock Chart Comstock Stock Chart Origin Materials Stock Chart Alto Ingredients Stock Chart Cibus Stock Chart Receive TSE Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Trinseo and its competitors with MarketBeat's FREE daily newsletter. This page (NYSE:TSE) was last updated on 9/2/2025 by MarketBeat.com Staff From Our PartnersMan Who Called Nvidia at $1.10 Says Buy This Now...In 2004, one man called Nvidia before just about anyone knew it existed. Now, this same guy says a new comp...The Oxford Club | SponsoredThe day and month stocks are most likely to crash nextGood News for Stocks 50-year Wall Street veteran, Marc Chaikin is stepping forward to share why history giv...Chaikin Analytics | SponsoredTrump’s Plan May Undo 1933’s Biggest Financial InjusticeTrump's Reset Can Give Birth To America's Greatest Era Yet A 90-Year cycle may end soon, creating real weal...American Hartford Gold | SponsoredEveryone’s watching Nvidia right now. Here’s why I’m excited.So, unless you’ve been living under a rock, you probably saw the news… Nvidia just signed a $7 BILLION deal...Timothy Sykes | Sponsored[No Brainer Gold Play]: “Show me a better investment.”A Historic Gold Announcement Is About to Rock Wall Street? For months, sharp-eyed analysts have watched the...Golden Portfolio | Sponsored2013 Bitcoin miner reveals his trading system (free)While everyone else is gambling on meme coins or chasing the next "100x moonshot," our members are systematica...Crypto Swap Profits | SponsoredWhat Steve Bannon revealed about Trump’s gold playA Trump advisor just said 3 words that could reset the dollar. It’s a gold move nobody saw coming—and your ...Reagan Gold Group | SponsoredGENIUS Act: Cancel Your Money?They said digital dollars were off the table. But with the GENIUS Act now federal law, private corporations—no...Priority Gold | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added ten stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Trinseo PLC Please log in to your account or sign up in order to add this asset to your watchlist. Share Trinseo With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Free TSE Stock Alerts