Tearsheet

Investment Highlights Why It Matters Detailed financial logic regarding cash flow yields vs trend-riding momentum.

0

Low stock price volatility
Vol 12M is 47%

Megatrend and thematic drivers
Megatrends include Water Infrastructure, Advanced Materials, and Circular Economy & Recycling. Themes include Water Treatment & Delivery, Show more.

Weak multi-year price returns
2Y Excs Rtn is -86%, 3Y Excs Rtn is -103%

Not profitable at operating income level
Op Inc LTMOperating Income, Last Twelve Months is -340 Mil, Op Mgn LTMOperating Margin = Operating Income / Revenue Reflects profitability before taxes and before impact of capital structure (interest payments). is -3.1%

Weak revenue growth
Rev Chg LTMRevenue Change % Last Twelve Months (LTM) is -8.6%, Rev Chg 3Y AvgRevenue Change % averaged over trailing 3 years is -9.8%, Rev Chg QQuarterly Revenue Change % is -6.8%

Not cash flow generative
FCF/Rev LTMFree Cash Flow / Revenue (Sales), Last Twelve Months (LTM) is -4.6%

Yield minus risk free rate is negative
ERPEquity Risk Premium (ERP) = Total Yield - Risk Free Rate, Reflects the premium above risk free assets offered by the investment. is -18%

Key risks
WLK key risks include [1] a significant goodwill impairment in its Performance and Essential Materials segment and [2] substantial financial charges and operational disruption from the closure of several North American production facilities.

0 Low stock price volatility
Vol 12M is 47%
1 Megatrend and thematic drivers
Megatrends include Water Infrastructure, Advanced Materials, and Circular Economy & Recycling. Themes include Water Treatment & Delivery, Show more.
2 Weak multi-year price returns
2Y Excs Rtn is -86%, 3Y Excs Rtn is -103%
3 Not profitable at operating income level
Op Inc LTMOperating Income, Last Twelve Months is -340 Mil, Op Mgn LTMOperating Margin = Operating Income / Revenue Reflects profitability before taxes and before impact of capital structure (interest payments). is -3.1%
4 Weak revenue growth
Rev Chg LTMRevenue Change % Last Twelve Months (LTM) is -8.6%, Rev Chg 3Y AvgRevenue Change % averaged over trailing 3 years is -9.8%, Rev Chg QQuarterly Revenue Change % is -6.8%
5 Not cash flow generative
FCF/Rev LTMFree Cash Flow / Revenue (Sales), Last Twelve Months (LTM) is -4.6%
6 Yield minus risk free rate is negative
ERPEquity Risk Premium (ERP) = Total Yield - Risk Free Rate, Reflects the premium above risk free assets offered by the investment. is -18%
7 Key risks
WLK key risks include [1] a significant goodwill impairment in its Performance and Essential Materials segment and [2] substantial financial charges and operational disruption from the closure of several North American production facilities.

Valuation, Metrics & Events

Price Chart

Why The Stock Moved

Qualitative Assessment

AI Analysis | Feedback

Updated on 5/15/2026
Westlake (WLK) stock has gained about 10% since 1/31/2026 because of the following key factors:

1. Westlake's Q4 2025 earnings, reported on February 24, 2026, significantly surpassed analyst expectations. The company posted an EPS of -$0.25, substantially beating the consensus estimate of -$1.47 by $1.22. This strong beat contributed to WLK shares gaining +12.0% the day after the announcement and continuing to drift +14.2% higher in the subsequent weeks.

2. Improving sentiment and tightening supply in the chemical industry provided a positive backdrop for Westlake's Performance and Essential Materials (PEM) segment. In Q1 2026, chemical manufacturers reported growing orders and production, alongside a notable increase in optimism, with key indexes for manufacturing activity reaching multi-year highs. This improvement was largely driven by supply-side changes, including global supply disruptions and plant shutdowns in Europe, leading to sequential profit improvements for some chemical companies and benefiting Westlake.

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Stock Movement Drivers

Fundamental Drivers

The 10.7% change in WLK stock from 1/31/2026 to 5/29/2026 was primarily driven by a 15.5% change in the company's P/S Multiple.
(LTM values as of)13120265292026Change
Stock Price ($)78.4686.8310.7%
Change Contribution By: 
Total Revenues ($ Mil)11,48010,976-4.4%
P/S Multiple0.91.015.5%
Shares Outstanding (Mil)1281280.2%
Cumulative Contribution10.7%

LTM = Last Twelve Months as of date shown

Market Drivers

1/31/2026 to 5/29/2026
ReturnCorrelation
WLK10.7% 
Market (SPY)9.6%-1.4%
Sector (XLB)4.3%37.4%

Fundamental Drivers

The 28.7% change in WLK stock from 10/31/2025 to 5/29/2026 was primarily driven by a 34.3% change in the company's P/S Multiple.
(LTM values as of)103120255292026Change
Stock Price ($)67.4686.8328.7%
Change Contribution By: 
Total Revenues ($ Mil)11,48010,976-4.4%
P/S Multiple0.81.034.3%
Shares Outstanding (Mil)1281280.2%
Cumulative Contribution28.7%

LTM = Last Twelve Months as of date shown

Market Drivers

10/31/2025 to 5/29/2026
ReturnCorrelation
WLK28.7% 
Market (SPY)11.5%12.3%
Sector (XLB)20.6%47.4%

Fundamental Drivers

The -2.9% change in WLK stock from 4/30/2025 to 5/29/2026 was primarily driven by a -9.6% change in the company's Total Revenues ($ Mil).
(LTM values as of)43020255292026Change
Stock Price ($)89.4586.83-2.9%
Change Contribution By: 
Total Revenues ($ Mil)12,14210,976-9.6%
P/S Multiple0.91.06.9%
Shares Outstanding (Mil)1291280.4%
Cumulative Contribution-2.9%

LTM = Last Twelve Months as of date shown

Market Drivers

4/30/2025 to 5/29/2026
ReturnCorrelation
WLK-2.9% 
Market (SPY)38.0%23.6%
Sector (XLB)24.3%53.6%

Fundamental Drivers

The -18.7% change in WLK stock from 4/30/2023 to 5/29/2026 was primarily driven by a -30.5% change in the company's Total Revenues ($ Mil).
(LTM values as of)43020235292026Change
Stock Price ($)106.8686.83-18.7%
Change Contribution By: 
Total Revenues ($ Mil)15,79410,976-30.5%
P/S Multiple0.91.017.3%
Shares Outstanding (Mil)128128-0.4%
Cumulative Contribution-18.7%

LTM = Last Twelve Months as of date shown

Market Drivers

4/30/2023 to 5/29/2026
ReturnCorrelation
WLK-18.7% 
Market (SPY)89.0%42.2%
Sector (XLB)34.7%64.0%

Return vs. Risk

Price Returns Compared

 202120222023202420252026Total [1]
Returns
WLK Return21%7%38%-17%-34%20%18%
Peers Return48%15%10%-17%-30%40%51%
S&P 500 Return27%-19%24%23%16%10%101%

Monthly Win Rates [3]
WLK Win Rate67%67%42%42%33%60% 
Peers Win Rate55%57%47%40%38%60% 
S&P 500 Win Rate75%42%67%75%67%60% 

Max Drawdowns [4]
WLK Max Drawdown-25%-41%-17%-29%-52%-29% 
Peers Max Drawdown-25%-35%-22%-32%-43%-18% 
S&P 500 Max Drawdown-5%-25%-10%-8%-19%-9% 


[1] Cumulative total returns since the beginning of 2021
[2] Peers: DOW, LYB, OLN, OXY, EMN. See WLK Returns vs. Peers.
[3] Win Rate = % of calendar months in which monthly returns were positive
[4] Max drawdown represents maximum peak-to-trough decline within a year
[5] 2026 data is for the year up to 5/29/2026 (YTD)

How Low Can It Go

EventWLKS&P 500
2025 US Tariff Shock
  % Loss-37.8%-18.8%
  % Gain to Breakeven60.8%23.1%
  Time to Breakeven283 days79 days
Summer-Fall 2023 Five Percent Yield Shock
  % Loss-13.7%-9.5%
  % Gain to Breakeven15.9%10.5%
  Time to Breakeven37 days24 days
2023 SVB Regional Banking Crisis
  % Loss-16.3%-6.7%
  % Gain to Breakeven19.5%7.1%
  Time to Breakeven42 days31 days
2022 Inflation Shock & Fed Tightening
  % Loss-15.4%-24.5%
  % Gain to Breakeven18.3%32.4%
  Time to Breakeven29 days427 days
2020 COVID-19 Crash
  % Loss-52.4%-33.7%
  % Gain to Breakeven110.2%50.9%
  Time to Breakeven170 days140 days
Q4 2018 Fed Policy Error / Growth Scare
  % Loss-25.1%-19.2%
  % Gain to Breakeven33.6%23.8%
  Time to Breakeven701 days105 days

Compare to DOW, LYB, OLN, OXY, EMN

In The Past

Westlake's stock fell -37.8% during the 2025 US Tariff Shock. Such a loss loss requires a 60.8% gain to breakeven.

Preserve Wealth

Limiting losses and compounding gains is essential to preserving wealth.

Asset Allocation

Actively managed asset allocation strategies protect wealth. Learn more.

EventWLKS&P 500
2025 US Tariff Shock
  % Loss-37.8%-18.8%
  % Gain to Breakeven60.8%23.1%
  Time to Breakeven283 days79 days
2020 COVID-19 Crash
  % Loss-52.4%-33.7%
  % Gain to Breakeven110.2%50.9%
  Time to Breakeven170 days140 days
Q4 2018 Fed Policy Error / Growth Scare
  % Loss-25.1%-19.2%
  % Gain to Breakeven33.6%23.8%
  Time to Breakeven701 days105 days
2015-2016 China Devaluation / Global Growth Scare
  % Loss-31.6%-12.2%
  % Gain to Breakeven46.2%13.9%
  Time to Breakeven281 days62 days
2014-2016 Oil Price Collapse
  % Loss-55.9%-6.8%
  % Gain to Breakeven126.8%7.3%
  Time to Breakeven658 days15 days
2011 US Debt Ceiling Crisis & European Contagion
  % Loss-39.3%-17.9%
  % Gain to Breakeven64.9%21.8%
  Time to Breakeven102 days123 days
2010 Eurozone Sovereign Debt Crisis / Flash Crash
  % Loss-40.6%-15.4%
  % Gain to Breakeven68.2%18.2%
  Time to Breakeven73 days125 days
2008-2009 Global Financial Crisis
  % Loss-47.0%-53.4%
  % Gain to Breakeven88.9%114.4%
  Time to Breakeven57 days1085 days

Compare to DOW, LYB, OLN, OXY, EMN

In The Past

Westlake's stock fell -37.8% during the 2025 US Tariff Shock. Such a loss loss requires a 60.8% gain to breakeven.

Preserve Wealth

Limiting losses and compounding gains is essential to preserving wealth.

Asset Allocation

Actively managed asset allocation strategies protect wealth. Learn more.

About Westlake (WLK)

Westlake Corporation manufactures and supplies petrochemicals, polymers, and building products worldwide. It operates through two segments, Performance and Essential Materials; and Housing and Infrastructure Products. The Performance and Essential Materials segment manufactures and markets polyethylene, styrene monomer, ethylene co-products, PVC, VCM, ethylene dichloride chlor-alkali, and chlorinated derivative products. The Housing and Infrastructure Products segment manufactures and sells residential PVC siding; PVC trim and moldings; roofing applications; decorative stone; windows; PVC decking; PVC films for various inflatables, wallcovering, tape, and roofing applications; polymer composite roof tiles; PVC pipe and fittings; PVC compounds; and various consumer and commercial products such as landscape edging; industrial, home and office matting; marine dock edging; and masonry joint controls. The company offers its products to a range of customers, including chemical processors, plastics fabricators, small construction contractors, municipalities, and supply warehouses for use in various consumer and industrial markets, including residential construction, flexible and rigid packaging, automotive products, healthcare products, water treatment, and coatings, as well as other durable and non-durable goods. The company was formerly known as Westlake Chemical Corporation and changed its name to Westlake Corporation in February 2022. The company was founded in 1986 and is headquartered in Houston, Texas. Westlake Corporation is a subsidiary of TTWF LP.

AI Analysis | Feedback

Imagine a company like Dow Chemical, but also a major manufacturer of plastic building materials for homes and infrastructure.

It's like LyondellBasell, if they also directly manufactured a comprehensive range of plastic components for the construction industry, such as siding, pipes, and roofing.

AI Analysis | Feedback

  • Petrochemicals: Basic chemicals and polymers such as polyethylene, styrene monomer, ethylene, VCM, and chlor-alkali products.
  • PVC Resins and Compounds: Core polyvinyl chloride (PVC) materials and specialized PVC formulations for various industrial uses.
  • Residential Building Products: A range of finished goods including PVC siding, trim, moldings, windows, decking, and decorative stone for home construction.
  • Infrastructure Products: Essential PVC pipes and fittings used in water, sewer, and other utility applications.
  • Specialty PVC Films: Thin PVC sheets designed for diverse applications such as inflatables, wallcoverings, and roofing membranes.
  • Commercial & Consumer Goods: Products like landscape edging, various matting types, and marine dock edging.

AI Analysis | Feedback

Westlake (symbol: WLK) primarily sells its products to other companies (B2B) rather than directly to individuals. The provided information describes the categories of business customers it serves, but does not name specific customer companies.

Westlake's major customers include:

  • Chemical processors
  • Plastics fabricators
  • Small construction contractors
  • Municipalities
  • Supply warehouses

These customers utilize Westlake's products in various consumer and industrial markets, such as residential construction, flexible and rigid packaging, automotive products, healthcare products, water treatment, and coatings.

AI Analysis | Feedback

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Jean-Marc Gilson, President and Chief Executive Officer

Jean-Marc Gilson serves as the President and Chief Executive Officer of Westlake Corporation. He was elected to the company's board of directors effective February 20, 2026.

M. Steven Bender, Executive Vice President and Chief Financial Officer

M. Steven Bender has been the Executive Vice President and Chief Financial Officer of Westlake Corporation since July 2017, having joined the company in 2005. Prior to Westlake, he served as Vice President and Treasurer of KBR, Inc. from June 2002 to June 2005. From 1996 to 2002, he held the position of Assistant Treasurer for Halliburton Company and various other financial roles within that company. Additionally, Mr. Bender was employed by Texas Eastern Corporation for over a decade in audit, finance, and treasury positions. He is also a Certified Public Accountant.

Albert Y. Chao, Executive Chairman of the Board

Albert Y. Chao is the Executive Chairman of the Board of Westlake Corporation, having previously served as President and Chief Executive Officer from 2004 to July 2024. Mr. Chao, along with his father T.T. Chao and brother James Chao, co-founded Westlake Chemical Corporation in 1986. His career in the petrochemical industry spans over 40 years, including international business activities with Mobil Oil Corporation, Hercules Inc., and Gulf Oil Chemicals. He also served as Assistant to the Chairman of China General Plastics Group in Taiwan and Deputy Managing Director of a plastics fabrication operation in Singapore.

Robert F. Buesinger, Executive Vice President, Performance & Essential Materials Segment Head

Robert F. Buesinger serves as the Executive Vice President, Performance & Essential Materials Segment Head at Westlake Corporation.

L. Benjamin Ederington, Executive Vice President, Legal and External Affairs

L. Benjamin Ederington holds the position of Executive Vice President, Legal and External Affairs at Westlake Corporation.

AI Analysis | Feedback

Here are the key risks to Westlake Corporation (WLK):

  1. Raw Material Volatility and Supply Chain Constraints: Westlake Corporation is highly reliant on raw materials such as crude oil, natural gas, and ethane, as well as feedstocks like ethylene and chlorine. Price volatility and disruptions in the supply chain for these materials can significantly increase operating expenses and pressure profit margins.
  2. Dependency on Economic Cycles and Global Oversupply: The company's performance is closely tied to the cyclical nature of the chemical and building products industries. Economic downturns, such as recessions or reduced housing starts due to high interest rates, can lead to decreased demand for its products. Furthermore, global oversupply in commodity chemicals, particularly PVC, exerts pressure on profit margins.
  3. Environmental Compliance Costs and Regulatory Risks: Westlake Corporation faces increasing capital expenditures for environmental compliance and is subject to extensive environmental, health, and safety regulations. The introduction of new regulations, particularly those concerning greenhouse gas emissions and climate change, could further escalate operational costs and impact the company's financial performance.

AI Analysis | Feedback

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Westlake Corporation participates in significant addressable markets for its key products and services, both globally and within the United States.

  • Polyvinyl Chloride (PVC): The global polyvinyl chloride market size was estimated at USD 86.93 billion in 2024 and is projected to reach approximately USD 116.26 billion by 2034. In the U.S., the PVC market accounted for USD 19 billion in 2025. For PVC pipes and fittings, the global market size is expected to reach USD 66.87 billion by 2030, growing from USD 46.02 billion in 2025. The U.S. PVC and CPVC pipe fittings market size was valued at USD 4.94 billion in 2024 and is expected to reach approximately USD 8.72 billion by 2034.

  • Polyethylene: The global polyethylene market size was valued at USD 114.42 billion in 2024 and is projected to grow to USD 137.34 billion by 2032. In the U.S., the polyethylene market size was estimated at USD 23.7 billion in 2024 and is projected to be worth around USD 34 billion by 2034.

  • Styrene Monomer: The global styrene monomer market size was approximately USD 57.1 billion in 2023, with expectations to expand to about USD 93.4 billion by 2033. The U.S. styrene monomer market size is projected at roughly USD 17.71 billion in 2025.

  • Windows: The global windows and doors market size was estimated at USD 275.16 billion in 2025 and is projected to reach USD 388.16 billion by 2033. The U.S. windows and doors market generated a revenue of USD 30,757.6 million (approximately USD 30.76 billion) in 2025 and is expected to reach USD 41,181.9 million (approximately USD 41.18 billion) by 2033.

AI Analysis | Feedback

Westlake Corporation (WLK) is expected to drive future revenue growth over the next two to three years through several key initiatives and market dynamics:

  1. Three-Pillar Profitability Improvement Plan: Westlake anticipates a significant improvement in earnings, projected at approximately $600 million annually starting in 2026, through its three-pillar strategy. This plan focuses on footprint optimization (reducing exposure to low-priced export markets by shutting down high-cost assets), structural cost reductions across the company, and enhanced operational reliability, with each pillar expected to contribute $200 million in earnings improvement.
  2. Recovery in the Polyethylene Market and Ethane Advantage: Analysts foresee a strong earnings recovery in Westlake's Performance and Essential Materials (PEM) segment for 2026 and 2027. This is primarily attributed to a tightening global polyethylene supply, partly due to international supply disruptions impacting global capacity, which enhances pricing power. Additionally, a widening ethane advantage is expected to contribute to this recovery.
  3. Robust Demand in Housing and Infrastructure Products (HIP): The company projects continued strong demand for its Housing and Infrastructure Products segment, particularly for pipe and fittings, driven by growing North American infrastructure spending. Despite some headwinds from slower residential construction, the HIP segment is expected to achieve revenues between $4.4 billion and $4.6 billion in 2026, supported by healthy EBITDA margins.
  4. Strategic International Market Expansion: Westlake is actively expanding its market reach, notably with its Westlake Epoxy business entering India through a strategic partnership. This expansion aims to capitalize on India's burgeoning demand in the coatings, adhesives, and construction sectors, which analysts view as a smart move given the region's demographic and urban development drivers, contributing to a substantial uptick in earnings for 2026-2027.

AI Analysis | Feedback

Share Repurchases

  • In August 2022, Westlake authorized an additional $500 million for its existing share repurchase program, bringing the total available for future repurchases to approximately $550 million at that time.
  • Westlake returned approximately $325 million to shareholders in 2024, which included share repurchases and dividends, with annual share buybacks totaling $60 million.
  • In 2025, the company returned $335 million to shareholders through dividends and repurchases, with annual share buybacks amounting to $63 million.

Share Issuance

  • No significant share issuances by Westlake Corporation for capital raising purposes were identified within the last 3-5 years.

Inbound Investments

  • No information regarding large inbound investments made in Westlake Corporation by third-parties was identified within the last 3-5 years.

Outbound Investments

  • In October 2021, Westlake acquired Boral's North American building products businesses for $2.14 billion in an all-cash transaction, significantly expanding its Housing and Infrastructure Products segment.
  • The company acquired Hexion Inc.'s Epoxy business for $1.2 billion in February 2022, which was funded with existing cash on hand.
  • In January 2026, Westlake completed the acquisition of the global compounding solutions businesses of the ACI/Perplastic Group, expanding its manufacturing footprint into Portugal, Romania, and Tunisia.

Capital Expenditures

  • Westlake's capital expenditures were over $1 billion in 2023.
  • Capital expenditures totaled $241 million in 2025, with a full-year guidance for 2025 of approximately $900 million as of Q1 2025.
  • For 2026, capital expenditures are guided to be approximately $900 million, a reduction from the prior year's guidance, with a focus on footprint optimization, structural cost savings, improved plant reliability, and an estimated $103 million allocated for environmental compliance.

Better Bets vs. Westlake (WLK)

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Recent Active Movers

Peer Comparisons

Peers to compare with:

Financials

WLKDOWLYBOLNOXYEMNMedian
NameWestlake Dow Lyondell.Olin Occident.Eastman . 
Mkt Price86.8333.7566.6525.8756.6375.8761.64
Mkt Cap11.124.321.52.956.18.716.3
Rev LTM10,97639,33129,6736,72020,0208,63915,498
Op Inc LTM-340125971-783,172833479
FCF LTM-508-2329083033,366498400
FCF 3Y Avg1775571,7024094,737532545
CFO LTM4482,0652,5725129,6651,0001,532
CFO 3Y Avg1,1703,2443,42462210,8971,1652,207

Growth & Margins

WLKDOWLYBOLNOXYEMNMedian
NameWestlake Dow Lyondell.Olin Occident.Eastman . 
Rev Chg LTM-8.6%-7.7%-9.4%2.6%-7.9%-7.7%-7.8%
Rev Chg 3Y Avg-9.8%-9.5%-13.0%-7.6%-15.7%-5.4%-9.6%
Rev Chg Q-6.8%-6.1%-6.3%-3.7%-8.3%-4.9%-6.2%
QoQ Delta Rev Chg LTM-1.7%-1.6%-1.6%-0.9%-2.3%-1.3%-1.6%
Op Inc Chg LTM-147.6%-91.0%-58.3%-128.8%-37.5%-41.2%-74.6%
Op Inc Chg 3Y Avg-78.2%-58.2%-37.8%-81.6%-25.3%-8.1%-48.0%
Op Mgn LTM-3.1%0.3%3.3%-1.2%15.8%9.6%1.8%
Op Mgn 3Y Avg3.5%2.8%6.6%4.1%19.0%12.1%5.3%
QoQ Delta Op Mgn LTM-1.2%-0.1%0.5%-1.7%-1.7%-1.3%-1.3%
CFO/Rev LTM4.1%5.3%8.7%7.6%48.3%11.6%8.1%
CFO/Rev 3Y Avg9.8%7.7%10.9%9.4%51.3%12.9%10.3%
FCF/Rev LTM-4.6%-0.6%3.1%4.5%16.8%5.8%3.8%
FCF/Rev 3Y Avg1.3%1.3%5.4%6.2%22.2%5.9%5.6%

Valuation

WLKDOWLYBOLNOXYEMNMedian
NameWestlake Dow Lyondell.Olin Occident.Eastman . 
Mkt Cap11.124.321.52.956.18.716.3
P/S1.00.60.70.42.81.00.9
P/Op Inc-32.7194.722.1-37.617.710.414.0
P/EBIT-7.1-14.7-180.3-29.917.012.9-10.9
P/E-6.8-8.5-26.9-15.911.821.7-7.7
P/CFO24.811.88.35.85.88.78.5
Total Yield-13.5%-6.6%3.5%-3.2%8.4%6.8%0.2%
Dividend Yield1.2%5.1%7.2%3.1%0.0%2.2%2.7%
FCF Yield 3Y Avg0.7%1.0%6.1%8.2%8.8%5.3%5.7%
D/E0.60.80.71.10.30.60.6
Net D/E0.40.60.51.10.20.50.5

Returns

WLKDOWLYBOLNOXYEMNMedian
NameWestlake Dow Lyondell.Olin Occident.Eastman . 
1M Rtn-21.6%-13.8%-9.1%-4.8%-6.8%7.7%-7.9%
3M Rtn-16.7%10.9%17.3%3.5%7.2%1.7%5.4%
6M Rtn31.4%44.6%41.7%24.5%36.3%25.3%33.8%
12M Rtn24.6%26.4%26.4%32.9%39.5%-2.3%26.4%
3Y Rtn-15.0%-18.9%-7.2%-43.3%1.8%7.1%-11.1%
1M Excs Rtn-27.8%-20.0%-15.3%-11.1%-13.0%1.5%-14.2%
3M Excs Rtn-26.9%0.8%7.1%-6.7%-3.0%-8.5%-4.8%
6M Excs Rtn27.6%38.9%35.6%18.6%26.2%16.3%26.9%
12M Excs Rtn-2.4%-0.3%-1.1%5.8%12.0%-30.4%-0.7%
3Y Excs Rtn-103.2%-104.5%-92.9%-131.2%-82.9%-79.2%-98.1%

Financials

Segment Financials

Assets by Segment
$ Mil20252024202320222021
Performance and Essential Materials13,15113,53813,97811,938 
Housing and Infrastructure Products4,8554,8885,0225,021 
Corporate and other loss from operations2,7442,6091,5501,5001,232
Olefins    1,923
Vinyls    10,680
Total20,75021,03520,55018,45913,835


Price Behavior

Price Behavior
Market Price$86.83 
Market Cap ($ Bil)11.1 
First Trading Date08/12/2004 
Distance from 52W High-29.2% 
   50 Days200 Days
DMA Price$106.15$87.29
DMA Trendupdown
Distance from DMA-18.2%-0.5%
 3M1YR
Volatility42.4%47.3%
Downside Capture26.1981.13
Upside Capture-50.6882.14
Correlation (SPY)-11.6%23.9%
WLK Betas & Captures as of 4/30/2026

 1M2M3M6M1Y3Y
Beta-1.00-0.220.150.681.031.08
Up Beta-1.04-1.10-0.720.191.021.24
Down Beta0.010.510.741.151.471.11
Up Capture-40%16%97%130%79%61%
Bmk +ve Days15223166141428
Stock +ve Days12233467122364
Down Capture-144%-22%-41%27%92%101%
Bmk -ve Days4183056108321
Stock -ve Days10203058130389

[1] Upside and downside betas calculated using positive and negative benchmark daily returns respectively
Based On 1-Year Data
Annualized
Return
Annualized
Volatility
Sharpe
Ratio
Correlation
with WLK
WLK26.4%47.2%0.64-
Sector ETF (XLB)21.4%16.7%0.9857.5%
Equity (SPY)30.3%11.8%1.9423.7%
Gold (GLD)37.5%26.7%1.177.0%
Commodities (DBC)39.6%18.8%1.6312.1%
Real Estate (VNQ)12.5%13.1%0.6432.2%
Bitcoin (BTCUSD)-31.8%41.6%-0.8121.5%

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Based On 5-Year Data
Annualized
Return
Annualized
Volatility
Sharpe
Ratio
Correlation
with WLK
WLK-1.2%37.0%0.06-
Sector ETF (XLB)5.5%18.9%0.1967.0%
Equity (SPY)14.3%17.0%0.6647.6%
Gold (GLD)18.8%18.0%0.8510.3%
Commodities (DBC)10.2%19.4%0.4129.5%
Real Estate (VNQ)3.4%18.8%0.0844.0%
Bitcoin (BTCUSD)14.6%54.6%0.4620.7%

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Based On 10-Year Data
Annualized
Return
Annualized
Volatility
Sharpe
Ratio
Correlation
with WLK
WLK8.8%39.3%0.34-
Sector ETF (XLB)10.5%20.6%0.4572.3%
Equity (SPY)15.9%17.9%0.7656.8%
Gold (GLD)13.3%16.0%0.694.6%
Commodities (DBC)7.3%17.9%0.3337.5%
Real Estate (VNQ)5.7%20.7%0.2446.5%
Bitcoin (BTCUSD)67.0%66.9%1.0617.5%

Smart multi-asset allocation framework can stack odds in your favor. Learn How

Short Interest

Short Interest: As Of Date5152026
Short Interest: Shares Quantity3.6 Mil
Short Interest: % Change Since 43020263.4%
Average Daily Volume1.4 Mil
Days-to-Cover Short Interest2.5 days
Basic Shares Quantity128.0 Mil
Short % of Basic Shares2.8%

Earnings Returns History

Updated 5/29/2026
Expand for More
 Forward Returns
Earnings Date1D Returns5D Returns21D Returns
5/5/2026-8.8%-15.1% 
2/24/202612.0%14.8%23.3%
10/30/2025-7.1%-10.4%-7.2%
8/5/20259.0%0.8%11.7%
5/2/2025-13.5%-12.8%-23.8%
2/24/2025-0.2%2.4%-6.0%
11/5/20240.8%-1.0%-3.9%
8/6/20247.9%6.8%3.4%
...
SUMMARY STATS   
# Positive151616
# Negative1098
Median Positive3.3%3.8%9.3%
Median Negative-5.0%-1.5%-6.6%
Max Positive12.0%14.8%27.6%
Max Negative-13.5%-15.1%-23.8%

SEC Filings

Expand for More
Report DateFiling DateFiling
03/31/202605/06/202610-Q
12/31/202502/26/202610-K
09/30/202510/31/202510-Q
06/30/202508/06/202510-Q
03/31/202505/02/202510-Q
12/31/202402/25/202510-K
09/30/202411/06/202410-Q
06/30/202408/09/202410-Q
03/31/202405/02/202410-Q
12/31/202302/22/202410-K
09/30/202311/02/202310-Q
06/30/202308/03/202310-Q
03/31/202305/04/202310-Q
12/31/202202/22/202310-K
09/30/202211/03/202210-Q
06/30/202208/03/202210-Q

Insider Activity

Updated 5/14/2026
Expand for More
#OwnerTitleHoldingActionFiling DatePriceSharesTransacted
Value
Value of
Held Shares
Form
1Bender, Mark StevenEVP & CFODirectSell3302026112.5316,4131,847,0373,152,668Form
2Bender, Mark StevenEVP & CFODirectSell3022026100.9217,4091,756,9974,484,384Form
3Chao, AlbertExecutive ChairmanDirectSell1223202573.5740,8363,004,37346,182,563Form
4Buesinger, Robert FEVP, PEM Segment Headby trustSell609202572.7083  Form
5Buesinger, Robert FEVP, PEM Segment Headby trustBuy609202593.39837,7517,751Form
Core Cache Last Updated: 5/29/2026