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Compare · ECVT vs WLK

ECVT vs WLK

Side-by-side comparison of Ecovyst Inc. (ECVT) and Westlake Corporation (WLK): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both ECVT and WLK operate in Major Chemicals (Industrials), so they compete in similar markets.
  • WLK is the larger of the two at $11.07B, about 7.7x ECVT ($1.43B).
  • Over the past year, ECVT is up 71.8% and WLK is up 20.8% - ECVT leads by 51.0 points.
  • Both names hit the wire about 6 times in the past 4 weeks.
  • WLK has more recent analyst coverage (25 ratings vs 9 for ECVT).
PerformanceECVT+71.84%WLK+20.83%
2025-06-03+0.00%2026-06-03
MetricECVTWLK
Company
Ecovyst Inc.
Westlake Corporation
Price
$13.06-1.40%
$86.40-0.50%
Market cap
$1.43B
$11.07B
1M return
-7.54%
-24.67%
1Y return
+71.84%
+20.83%
Industry
Major Chemicals
Major Chemicals
Exchange
NYSE
NYSE
IPO
2017
2004
News (4w)
6
6
Recent ratings
9
25
ECVT

Ecovyst Inc.

Ecovyst Inc. provides specialty catalysts and services in the United States, the Netherlands, the United Kingdom, and internationally. The company offers sulfuric acid recycling services for alkylation producers; and virgin sulfuric acid for mining, water treatment, and agricultural product applications. It also provides silica-based catalysts and zeolite catalysts for producers and licensors of polyethylene. The company was formerly known as PQ Group Holdings Inc. and changed its name to Ecovyst Inc. in August 2021. Ecovyst Inc. was founded in 1831 and is headquartered in Malvern, Pennsylvania.

WLK

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.

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