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Trinseo SA (TSE) fair value: what the stock is really worth

As of Sep 23, 2026: fair value of Trinseo SA $0.47, price $1.14, upside -59.0%, quality 32 out of 100. Calculated from audited financials with 26 valuation models and 37 quality factors, updated daily.

  1. Fair value above price? No
  2. Good quality? No
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Basic Materials · US · ISIN IE0000QBK8U7

TS Trinseo SA logo Thin data Sep 23, 2026

Trinseo SA

TSE · US

Weakest SetupStrongly overvalued and low quality.

!Fair value $0.4678 · Strongly overvalued (−59%)
!Quality 32/100
!Weak Growth (revenue 5y +1.6 %/yr)
!Loss-making · -13.2% net margin (TTM)
!Negative equity (buybacks among others) · negative free cash flow
·13.04% dividend yield
!Trails peers (2/8)
!Narrow moat 3/100
!Evidence only low, so the estimate is less certain
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26 valuation models 8 families, DCF to NCAV 37 quality factors margins, balance sheet, cashflow, debt 6 AI factors moat, what no ratio measures 2,000+ data points verified, per stock, median

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Price vs Fair Value

$55.52 $0.0050 Fair Value $0.4678 Jun 2021 Sep 2026

White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Sep 23, 2026.

How to read this chart

60‑month range $0.0050 – $55.52 · fair‑value band $0.2984 – $0.6372 · the $1.14 price screens above the $0.4678 fair value. Green steps = our fair value per fiscal year (point-in-time, no hindsight). 1 fiscal year is left out: there the valuation rested on only a fraction of the usual models. Dashed = 300-day average. As of Sep 23, 2026.

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Company profile

Trinseo PLC provides specialty material solutions in the United States, Europe, the Asia-Pacific, and internationally. It operates through four segments: Engineered Materials, Latex Binders, Polymer Solutions, and Americas Styrenics.

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Trinseo PLC provides specialty material solutions in the United States, Europe, the Asia-Pacific, and internationally. It operates through four segments: Engineered Materials, Latex Binders, Polymer Solutions, and Americas Styrenics. The Engineered Materials segment offers rigid thermoplastic compounds and blends, soft thermoplastic, continuous cast, cell cast, activated methyl methacrylates, polymethyl methacrylates (PMMA) resins, and extruded PMMA sheets and resins for consumer electronics, medical, footwear, automotive, and building and construction applications under the EMERGE, CALIBRE, PLEXIGLAS, ALTUGLAS, ACRYSPA, AVONITE, STUDIO, MEGOL, APILON, APIGO, and APINAT trade names. The Latex Binders segment provides various latex binder products, including styrene-butadiene latex, styrene-acrylate latex, vinylidene chloride latex, all-acrylic latex, and butadiene-methacrylate latex. The Polymer Solutions Segment offers a range of polymers, such as copolymers, polycarbonate, styrene-acrylonitrile, and acrylonitrile-butadiene-styrene under the MAGNUM brand. The Americas Styrenics segment provides styrene monomer, polystyrene, general purpose polystyrenes, high heat and impact resins, and STYRON A-TECH polystyrene products for appliances, food packaging, food service disposables, consumer electronics, and building and construction materials applications. It operates as a land development and subdivision company. The company was incorporated in 2015 and is based in Wayne, Pennsylvania.

Stock analysis

Trinseo SA (TSE) currently trades at $1.14, while our model-based Fair Value estimate is $0.4678, implying the stock looks roughly 143.7% overvalued today.

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Valuation

How firm this estimate is: it rests on 1 models at a data quality of 95/100, which puts the evidence level at low.

Scenario range: $0.2984 (bear) to $0.6372 (bull), the price of $1.14 sits above it. Bear and bull are the same models on cautious and optimistic assumptions, a range, not a price target.

Quality & growth

The Quality Score stands at 32/100 (below-average quality), in the Basic Materials sector.

Weak Growth: Revenue growth is weak: less than 2 % a year.

Trinseo SA reported revenue of $3.0B in FY2025 versus $4.8B in FY2021, a compound −11.4%/yr. Reported net income was −$546M in FY2025.

Key figures

Market cap $8.3M · EPS (TTM) $−11.57 · Dividend yield 13.0% · Net margin −18.3% · Return on equity −5,162% · Return on assets (EBIT) −5.5% · Operating margin −3.1% · Revenue (TTM) $3.1B.

Competitive moat

Our AI-assisted moat analysis scores the competitive advantage at 50 out of 100 (low confidence).

What moves the price

The share trades about 56% below its 52-week high and 1,040% above its 52-week low, currently above its 200-day average.

For context, the median of 10 Basic Materials peers we cover trades at −40% fair-value upside, at −59%, TSE screens richer than that median.

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Quality Score breakdown

Overall quality 32/100

Of which business quality 31 · Market factors (momentum, volatility) 39

Profitability 28
Margins and returns on capital today
Quality Growth 14
Are margins and returns improving?
Cashflow 2
Earnings quality: real cash, not paper profit
Fin. Strength 7
Balance sheet, leverage, solvency risk
Investment 100
Disciplined investing over empire-building
Low Volatility 12
Calm price path (market factor)
Momentum 67
Price trend over the last 3–12 months (market factor)
52W Momentum 21
Distance to the 52-week high (market factor)
Net Issuance 75
Share count: buybacks or dilution?

Open the full quality analysis →

Revenue & earnings trend

Growth Quality ⓘGrowth is valuable only when reinvestment earns attractive returns (Aswath Damodaran): sustainable growth depends on return on capital, reinvestment and efficiency. Basis: total company revenue over the periods shown on the cards (3Y/5Y/all years), not per share, so a merger can show up as a growth jump; per-share earnings growth is in the value-creation card. 9/100
Revenue growth is weak: less than 2 % a year.
Revenue growth 1 year
−15.3%
Revenue growth 3 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
−15.7%
Revenue growth 5 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+1.6%
Start year 2020 (pandemic). Over 10 years: −2.8% a year
Revenue growth 17 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
−3.2%
Profit margin (trend) ⓘOperating margin then vs now, from reported annual statements. A falling margin after a boom year is the classic peak-earnings signal: the growth rate then leans on an inflated base.
5.5% (2020) → −8.4% (2025)
What shareholders gained per year ⓘWe only publish this rate when it is defensible. Reason: fiscal 2025 is a loss year, no rate is defined from a loss
not computed

TSE screens 144% overvalued. Compare with Linde plc →

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Peer GroupⓘHow this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.Specialty Chemicals · 713 stocks

Beats the industry median on 2/8 measures
Overall it trails its industry peers.
Valuation
Quality Score 31 · Bottom 25%
Fair Value upside −59% · Below median
Profitability
Return on equity (TTM) Negative equity ⓘThe company's equity is below zero, for example after large share buybacks. A ratio to negative equity has no meaning, so we show no number here and do not rank it against the peer group.
Return on assets −2% · Bottom 25%
Net margin (TTM) −13% · Bottom 25%
Operating margin (TTM) −3% · Bottom 25%
Growth and dividend
Revenue growth −14% · Bottom 25%
Dividend yield (TTM) 13.0% · Top 25%
Balance sheet
Debt / equity Negative equity ⓘThe company's equity is below zero, for example after large share buybacks. A ratio to negative equity has no meaning, so we show no number here and do not rank it against the peer group.

Valuation Multiplesvs Specialty Chemicals median · lower = cheaper

P/B Negative equity ⓘThe company's equity is below zero, for example after large share buybacks. A ratio to negative equity has no meaning, so we show no number here and do not rank it against the peer group.
PEG 1.54× · Cheaper than median

Strength profile in five axes (Snowflake)

VALUEFUTUREPASTHEALTHDIVIDEND
This stock
VALUEFUTUREPASTHEALTHDIVIDEND
Sector peers
VALUE (fair-value potential)0 · sector 0
FUTURE (revenue growth)0 · sector 21
PAST (return on equity)0 · sector 23
HEALTH (low debt)0 · sector 95
DIVIDEND (yield)100 · sector 29

VALUE 0: the price sits above our fair-value range.

PAST 0: with negative equity (buybacks among others) return on equity is not meaningfully computable.

Context: sector, industry, market

Values & ESG

Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.

None of the checked exposures detected

Similar stocks

10 more Specialty Chemicals stocks, each showing price versus our Fair Value estimate.

Stock Price Fair Value vs Fair Value
Linde plc LIN $469.72 $441.28 −6%
The Sherwin-Williams Company SHW $326.46 $148.97 −54%
Ecolab Inc ECL $276.72 $96.18 −65%
Air Products and Chemicals, Inc APD $286.97 $122.14 −57%
Nan Ya Plastics Corporation 1303 238.00 TWD 235.25 TWD −1%
Givaudan SA GIVN CHF 3,406 CHF 1,523 −55%
Wanhua Chemical Group 600309 ¥71.60 ¥68.03 −5%
Asian Paints Limited ASIANPAINT ₹2,455 ₹1,479 −40%
PPG Industries, Inc PPG $107.20 $77.06 −28%
DSM-Firmenich AG DSFIR CHF 91.50 CHF 29.27 −68%

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Trinseo SA · Fair Value
$0.4678 −144%Fair Value
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Cite: Fair Value Calculator (2026). "Trinseo SA Fair Value". https://www.fairvalue-calculator.com/stock/TSE

Frequently asked questions

Is Trinseo SA (TSE) overvalued or undervalued?
As of Sep 23, 2026, our model estimates a fair value of $0.4678 versus a price of $1.14, about −59% upside (overvalued).
What is the fair value of TSE?
Our model-based fair value for Trinseo SA is $0.4678 (as of Sep 23, 2026), built from audited fundamentals. The current price: $1.14.
What is the quality score of TSE?
Trinseo SA has a Quality Score of 32/100. It measures business quality (profitability, growth, cash flow, balance-sheet strength, investment discipline, share issuance). Market factors such as price momentum and volatility do not enter the number; they are shown separately in the detail view.
What is the price target for Trinseo SA (TSE)?
Our model-based price target is the fair value of $0.4678 (as of Sep 23, 2026) from 1 valuation models. Cautious scenario $0.2984, optimistic scenario $0.6372. It is a calculation from audited fundamentals, not an analyst target.
What is the Trinseo SA stock forecast for 2026?
Our models put fair value at $0.4678, about −59% upside versus a price of $1.14 (overvalued). Cautious scenario $0.2984, optimistic scenario $0.6372. The calculation is refreshed regularly with new filings.
What is the revenue of Trinseo SA (TSE)?
Trinseo SA reported trailing-twelve-month revenue of about $3.1B (latest available figure, as of Sep 23, 2026).
Does Trinseo SA pay a dividend?
Trinseo SA currently shows a dividend yield of about 13.04% relative to its recent price (as of Sep 23, 2026).
What is the intrinsic value of Trinseo SA (TSE)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Trinseo SA it is $0.4678 per share (as of Sep 23, 2026), against a price of $1.14. It is the blended result of 1 valuation models (cash flow, earnings, asset, dividend).
Is Trinseo SA stock overvalued or undervalued in 2026?
As of Sep 23, 2026, TSE trades above its calculated fair value: price $1.14, fair value $0.4678, a gap of about −59% (overvalued). The calculation is refreshed with each new quarterly report, so the verdict can change during the year.
Is fair value the same as the market price of TSE?
No. The price is what the market pays today ($1.14); the fair value is what the company's own numbers justify ($0.4678). For Trinseo SA the two are $0.6722 per share apart. That gap is exactly why we show both numbers side by side.
How much is Trinseo SA worth?
The market values Trinseo SA at about $8.3M (market capitalisation, as of Sep 23, 2026). Per share that is $1.14; our models calculate a fair value of $0.4678 per share.
What do the bullish and bearish scenarios say about TSE?
Our models span a range for Trinseo SA: cautious scenario $0.2984, base $0.4678, optimistic $0.6372 per share (as of Sep 23, 2026, price $1.14). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the PEG ratio of TSE?
The PEG ratio of Trinseo SA is 1.54 (P/E divided by earnings growth, as of Sep 23, 2026). That is above 1, so the growth is already paid for in the price.
How solid is the balance sheet of Trinseo SA (TSE)?
Balance-sheet figures for Trinseo SA (as of Sep 23, 2026): negative equity, so no return on equity and no debt-to-equity ratio. They feed the Quality Score of 32/100, which measures business quality independently of the share price.
How far is TSE from its 52-week high?
Trinseo SA trades at $1.14, about 56% below its 52-week high of $2.59 and 1,040% above the low of $0.1000 (as of Sep 23, 2026). Distance from the high says nothing about value: that is what the fair value of $0.4678 is for.
Which stocks are comparable to Trinseo SA?
From the same area (Basic Materials) we also value Linde plc, The Sherwin-Williams Company, Ecolab Inc, Air Products and Chemicals, Inc, among others. Each of them has its own fair-value calculation on this site using the same models, so the comparison is like for like.
Is Trinseo SA stock attractive at the current price?
The data as of Sep 23, 2026: price $1.14, calculated fair value $0.4678 (−59%), Quality Score 32/100, from 1 models. Whether that fits your horizon and risk tolerance is your call. We provide the calculation, not investment advice.
How is the fair value of TSE calculated?
We run Trinseo SA through 1 models from four families: discounted cash flow, earnings models, asset and balance-sheet models, and dividend models. Every model gets the same audited fundamentals; the result is the weighted average of $0.4678, with the spread shown as a cautious and an optimistic scenario.
Is it still worth investing in stocks now?
The global stock market currently sits 13.0 % above its aggregate fair value. Trinseo SA itself currently trades above fair value. An expensive market is no reason to stay out and no reason to buy everything at once: keep a broad savings plan running, buy single stocks only with money you can do without, and hold part of your money liquid while the market is high. The full picture including sectors is on is it worth investing now.
What is the share price of Trinseo SA (TSE)?
The closing price on Sep 23, 2026 was $1.14. Our model-based fair value is $0.4678, about −59% upside (overvalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Trinseo SA right now?
The price sits above even our optimistic bull case ($0.6372). The favourable scenario is already priced in. Weak quality (32/100) and above fair value at the same time, the margin of safety is missing on both counts. The large gap to fair value rests on thin data (low evidence): fewer applicable models and a shorter history. Read it with extra caution. A fairly wide model range ($0.2984 to $0.6372) leaves room in how you read the outcome.

Key figures of Trinseo SA

How large is the market capitalisation of Trinseo SA (TSE)?
The market capitalisation of Trinseo SA is $8.3M. The stock-market value of the whole company: share price times number of shares. It is what the market asks for the entire business today.
What are the earnings per share of Trinseo SA (TSE)?
Earnings per share at Trinseo SA are $−11.57. Earnings per share over the last twelve months: total profit spread across every single share.
What is the dividend yield of Trinseo SA (TSE)?
The dividend yield of Trinseo SA is 13.0%. Yearly dividend relative to the share price. 3% pays 3 per 100 invested. Below: how much of profit is used for it.
What is the net margin of Trinseo SA (TSE)?
The net margin of Trinseo SA is −18.3% (fiscal year 2025). How much of every unit of revenue ends up as profit. 10% means 10 cents of profit per dollar of sales.
What is the return on equity of Trinseo SA (TSE)?
The return on equity (ROE) of Trinseo SA is −5,162% (last twelve months). Profit relative to shareholders' equity, how efficiently the company works with its owners' money.
What is the EBIT return on assets of Trinseo SA (TSE)?
On an EBIT basis the return on assets of Trinseo SA is −5.5% (avg 5y). Operating profit (EBIT) relative to everything the company owns, as a multi-year average. It describes the business model rather than one good or bad year.
What is the operating margin of Trinseo SA (TSE)?
The operating margin of Trinseo SA is −3.1% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Trinseo SA (TSE)?
Revenue at Trinseo SA is growing −14.3% versus a year earlier (3y avg −15.7%). How much revenue grew versus a year earlier (YoY). The 3-year average next to it puts the single year in context.
How fast are earnings growing at Trinseo SA (TSE)?
Earnings per share at Trinseo SA are growing −73.6% versus a year earlier. How much earnings per share grew versus a year earlier.
How much free cash flow does Trinseo SA (TSE) generate?
The free cash flow of Trinseo SA is −$153M (fiscal year 2025). The cash truly left after running and investing in the business, this is what pays dividends and buybacks.
How much net debt does Trinseo SA (TSE) carry?
The net debt of Trinseo SA is $126M (fiscal year 2025). Debt minus cash on hand. The note shows how many years of free cash flow could in theory pay it off.
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