Compare · TSE vs WLK
TSE vs WLK
Side-by-side comparison of Trinseo PLC (TSE) and Westlake Corporation (WLK): market cap, price performance, sector, and recent activity on the wire.
Summary
- Both TSE and WLK operate in Major Chemicals (Industrials), so they compete in similar markets.
- WLK is the larger of the two at $10.84B, about 5.3x TSE ($2.06B).
- Over the past year, TSE is down 92.6% and WLK is up 11.4% - WLK leads by 104.0 points.
- WLK has hit the wire 4 times in the past 4 weeks while TSE has been quiet.
- WLK has more recent analyst coverage (25 ratings vs 5 for TSE).
- Company
- Trinseo PLC
- Westlake Corporation
- Price
- $0.23-4.89%
- $84.57-0.91%
- Market cap
- $2.06B
- $10.84B
- 1M return
- -49.92%
- -15.36%
- 1Y return
- -92.61%
- +11.41%
- Industry
- Major Chemicals
- Major Chemicals
- Exchange
- NYSE
- NYSE
- IPO
- 2014
- 2004
- News (4w)
- 0
- 4
- Recent ratings
- 5
- 25
Trinseo PLC
Trinseo S.A., a materials company, manufactures and markets synthetic rubber, latex binders, and plastic products in the United States, Europe, the Asia-Pacific, and internationally. The company operates through six segments: Latex Binders, Synthetic Rubber, Performance Plastics, Polystyrene, Feedstocks, and Americas Styrenics. The Latex Binders segment offers styrene-butadiene, styrene-acrylate, vinylidene chloride, and butadiene-methacrylate latex products for the carpet and artificial turf markets, as well as performance latex products for the adhesive, building and construction, and technical textile paper market. The Synthetic Rubber segment provides styrene-butadiene rubber, emulsion styrene-butadiene rubber, nickel polybutadiene rubber, and neodymium polybutadiene rubber for use in tires and modifiers, as well as technical rubber products, such as conveyor belts, hoses, seals, and gaskets. The Performance Plastics segment offers engineered compounds and blends for the automotive, consumer electronics, medical, electrical, building and construction, appliance, and lighting markets. This segment also offers acrylonitrile-butadiene-styrene, styrene-acrylonitrile, and polycarbonate solutions; and soft-touch polymers and bioplastics, such as thermoplastic elastomers. The Polystyrene segment provides general purpose polystyrenes and high impact polystyrene for use in appliances, food packaging and food service disposables, consumer electronics, and building and construction materials. The Feedstocks segment offers styrene monomer, a basic building block of plastic. The Americas Styrenics segment provides styrene and polystyrene. Trinseo S.A. was founded in 2010 and is based in Berwyn, Pennsylvania.
Westlake Corporation
Westlake Chemical Corporation, together with its subsidiaries, manufactures and markets basic chemicals, vinyls, polymers, and building products worldwide. It operates through two segments, Vinyls and Olefins. The Vinyls segment provides specialty and commodity polyvinyl chloride (PVC), vinyl chloride monomers, ethylene dichloride, chlorine, caustic soda, chlorinated derivative, and ethylene products. This segment also manufactures and sells PVC compounds and building products fabricated from PVC, including residential siding, trim and molding, pipe and fittings for various water, sewer and industrial applications, profiles for windows and doors, decking products, films for various inflatables, wall covering tapes, roofing applications, and composite roof tiles. The Olefins segment offers polyethylene, styrene monomers, and various ethylene co-products, as well as sells propylene, crude butadiene, pyrolysis gasoline, and hydrogen products. Westlake Chemical Corporation offers its products to a range of customers, including chemical processors, plastics fabricators, small construction contractors, municipalities, and supply warehouses in various consumer and industrial markets, such as flexible and rigid packaging, automotive products, coatings, water treatment, refrigerants, and residential and commercial construction, as well as other durable and non-durable goods. The company was founded in 1986 and is headquartered in Houston, Texas. Westlake Chemical Corporation is a subsidiary of TTWF LP.
Latest TSE
- Trinseo PLC filed SEC Form 8-K: Results of Operations and Financial Condition, Financial Statements and Exhibits
- SEC Form 10-K filed by Trinseo PLC
- Trinseo Reports Fourth Quarter and Full-Year 2025 Financial Results
- SVP, Latex Binders Yang Arthas Bing covered exercise/tax liability with 2,548 units of Ordinary Shares, decreasing direct ownership by 5% to 49,457 units (SEC Form 4)
- SVP, Corporate Finance & IR Van Kessel Bregje covered exercise/tax liability with 6,064 units of Ordinary Shares, decreasing direct ownership by 6% to 98,296 units (SEC Form 4)
- SVP, SUPPLY CHAIN & MFG SVCS Schewe Rainer covered exercise/tax liability with 4,028 units of Ordinary Shares, decreasing direct ownership by 4% to 103,415 units (SEC Form 4)
- SVP, EM and Polymer Solutions Reverberi Francesca covered exercise/tax liability with 1,385 units of Ordinary Shares, decreasing direct ownership by 0.85% to 161,250 units (SEC Form 4)
- SVP, CHIEF TECHNOLOGY OFFICER Hendriks Han covered exercise/tax liability with 7,707 units of Ordinary Shares, decreasing direct ownership by 10% to 73,362 units (SEC Form 4)
- VP, GLOBAL CONTROLLER & PAO Greene Roger covered exercise/tax liability with 2,517 units of Ordinary Shares, decreasing direct ownership by 5% to 45,101 units (SEC Form 4)
- SVP, CHRO Cooney Paula M. covered exercise/tax liability with 7,670 units of Ordinary Shares, decreasing direct ownership by 6% to 118,318 units (SEC Form 4)
Latest WLK
- Westlake Corporation downgraded by Citigroup with a new price target
- SEC Form 8-K filed by Westlake Corporation
- SEC Form SD filed by Westlake Corporation
- Westlake Corporation upgraded by Analyst with a new price target
- Westlake Corporation Declares Quarterly Dividend
- EVP & CFO Bender Mark Steven converted options into 13,164 shares and covered exercise/tax liability with 5,284 shares, increasing direct ownership by 28% to 35,895 units (SEC Form 4) to cover withholding tax
- SEC Form 10-Q filed by Westlake Corporation
- Westlake Corporation downgraded by Analyst with a new price target
- Westlake Corporation filed SEC Form 8-K: Results of Operations and Financial Condition, Regulation FD Disclosure, Financial Statements and Exhibits
- Westlake Corporation Reports First Quarter 2026 Results