Trinseo PLC (TSE) Stock Price History
Historical prices from 2014 to 2026
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TSE Historical Performance
Short-Term Returns
TSE Stock Price Trajectory (2014–2026)
As of May 8, 2026, Trinseo PLC (TSE) trades at $0.13, representing a -97.1% return over the past year. The stock has delivered a -96.5% total return over five years (-71.6% CAGR), reflecting challenging market conditions.
The stock reached its all-time high of $85.35 on January 29, 2018. From this peak, TSE has corrected -99.9%, currently trading 93% below its 200-day moving average, suggesting potential weakness.
When compared to Basic Materials sector peers EMN (-2.1% 1Y), HUN (+31.5% 1Y), and AVNT (+1.0% 1Y), TSE has underperformed the peer group average. Compare TSE vs EMN →
TSE Historical Price Data (2025–2026)
Showing 30 of 2,954 recordsLoading full history…
| Date | Open | High | Low | Close | Volume | Change % |
|---|---|---|---|---|---|---|
| 2026-03-18 | 0.10 | 0.18 | 0.07 | 0.13 | 262K | -37.50% |
| 2026-03-17 | 0.10 | 0.20 | 0.06 | 0.20 | 506K | +81.82% |
| 2026-03-13 | 0.09 | 0.12 | 0.09 | 0.11 | 45K | 0.00% |
| 2026-03-12 | 0.09 | 0.14 | 0.09 | 0.11 | 83K | -37.14% |
| 2026-03-11 | 0.09 | 0.17 | 0.06 | 0.17 | 158K | +59.09% |
| 2026-03-04 | 0.08 | 0.19 | 0.08 | 0.11 | 1.16M | -52.17% |
| 2026-03-02 | 0.23 | 0.23 | 0.23 | 0.23 | 864K | 0.00% |
| 2026-02-27 | 0.25 | 0.25 | 0.23 | 0.23 | 899K | -7.59% |
| 2026-02-26 | 0.25 | 0.28 | 0.24 | 0.25 | 1.68M | -1.58% |
| 2026-02-25 | 0.25 | 0.26 | 0.24 | 0.25 | 761K | -3.84% |
| 2026-02-24 | 0.28 | 0.28 | 0.25 | 0.26 | 818K | -2.63% |
| 2026-02-23 | 0.30 | 0.32 | 0.25 | 0.27 | 1.31M | -17.55% |
| 2026-02-20 | 0.34 | 0.34 | 0.31 | 0.33 | 0 | +1.61% |
| 2026-02-19 | 0.35 | 0.40 | 0.31 | 0.32 | 614K | -20.98% |
| 2026-02-18 | 0.32 | 0.41 | 0.31 | 0.41 | 931K | +14.70% |
| 2026-02-17 | 0.40 | 0.40 | 0.35 | 0.36 | 234K | -9.03% |
| 2026-02-13 | 0.43 | 0.45 | 0.37 | 0.39 | 522K | -4.40% |
| 2026-02-12 | 0.44 | 0.46 | 0.40 | 0.41 | 892K | -5.98% |
| 2026-02-11 | 0.48 | 0.48 | 0.43 | 0.43 | 279K | -5.84% |
| 2026-02-10 | 0.49 | 0.51 | 0.45 | 0.46 | 602K | -1.49% |
| 2026-02-09 | 0.47 | 0.47 | 0.44 | 0.47 | 358K | 0.00% |
| 2026-02-06 | 0.45 | 0.47 | 0.43 | 0.47 | 292K | +4.45% |
| 2026-02-05 | 0.47 | 0.47 | 0.42 | 0.45 | 347K | -3.85% |
| 2026-02-04 | 0.44 | 0.47 | 0.43 | 0.47 | 497K | +3.55% |
| 2026-02-03 | 0.44 | 0.45 | 0.42 | 0.45 | 455K | +0.22% |
| 2026-02-02 | 0.43 | 0.45 | 0.42 | 0.45 | 642K | 0.00% |
| 2026-01-30 | 0.46 | 0.47 | 0.43 | 0.45 | 589K | -6.25% |
| 2026-01-29 | 0.48 | 0.50 | 0.44 | 0.48 | 577K | 0.00% |
| 2026-01-28 | 0.50 | 0.50 | 0.45 | 0.48 | 602K | -4.00% |
| 2026-01-27 | 0.49 | 0.50 | 0.46 | 0.50 | 656K | +2.04% |
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Start ComparisonTSE — Frequently Asked Questions
Quick answers to the most common questions about buying TSE stock.
How has TSE stock performed recently?
TSE declined -97.1% over the past year, below its 5-year annualized CAGR of -71.6%. The stock trades below its 200-day moving average, reflecting the downtrend.
What is TSE's all-time high price?
Trinseo PLC reached $85.35 on 2018-01-29. The 52-week high is $3.90. Current 1-year return of -97.1% places the stock further from historical peaks.
Where can I download TSE historical price data?
This page provides TSE daily OHLCV data with 50-day MA, 200-day MA, and RSI indicators. Data spans 2014-2026, downloadable in CSV format.