Westlake Corporation (WLK) Return on Investment ROI from the third quarter of 2026 to third quarter of 2025 and for the year 2026, average high and low, overall ranking from Sep 30 2026 to Sep 30 2025 - CSIMarket
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Westlake Corporation  (NYSE: WLK)


Westlake's ROI from its third quarter of 2026 to the third quarter of 2025 and 5 Year Period

Return on Investment, Quarterly Results, Trends, Rankings, Statistics

What is Westlake's ROI in the third quarter of 2026?
Westlake Corporation recorded a cumulative net loss of $-413 million during 12 months ending in the third quarter of 2026, resulting in a negative return on investment (ROI) of -2.35%.

Within the Basic Materials sector 103 other companies had a higher return on investment. While Return on investment, overall ranking has progressed in the Sep 30 2026 quarter, so far to 3039, from total ROI ranking in the second quarter of 2026 at 3517.

Definition and Formula of Return on Investment


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Return On Investment (Sep 30 2026)
III. Quarter		 (Jun 30 2026)
II. Quarter		 (Mar 31 2026)
I. Quarter		 (Dec 31 2025)
IV. Quarter		 (Sep 30 2025)
III. Quarter
Y / Y Investment Change TTM -5.56 % -7.83 % -6.32 % -4.26 % -2.13 %
Y / Y Net Income Change TTM - - - - -
Investment (TTM) in Millions 17,411 17,623 17,468 17,694 17,429
Return On Investment (TTM) -2.35 % -6.78 % -8.91 % -8.06 % -4.95 %
WLK's Overall Ranking # 3039 # 3517 # 2959 # 2562 # 1852
Seq. Investment Change TTM -0.03 % -1.81 % -2.01 % -1.82 % -2.43 %
Seq. Net Income Change TTM - - - - -
Net Income (TTM) in Millions -413 -1,191 -1,593 -1,471 -919

WLK Company Profile >> Back to WLK Roi Comparisons >> See Annual WLK Return On Investment



Return On Investment WLK's Ranking
Within: No.
Industry # 23
Sector # 104
Overall # 3039

Return On Investment Statistics
High Average Low
18.08 %
8.17 %
-8.24 %
(Mar 31 2014)   (Mar 31 2026)







Financial Statements
Westlake's III. Quarter Investments $ 17,411 Millions WLK's Balance sheet
Westlake's III. Quarter Income $ 6 Millions Quarterly WLK's Income Statement
WLK's Income by Division See WLK's Income by Division


WLK Annual Return On Investment (Dec 31 2025)
2025		 (Dec 31 2024)
2024		 (Dec 31 2023)
2023		 (Dec 31 2022)
2022		 (Dec 31 2021)
2021
Total Investments in Millions 17,694 19,047 18,768 18,786 16,688
Y / Y Investment Growth -7.1 % 1.49 % -0.1 % 12.57 % 28.24 %
Net Income in Millions -1,471 647 522 2,297 2,070
Y / Y Net Income Growth - 23.95 % -77.27 % 10.97 % 454.96 %
Annual Return On Investment -8.31 % 3.4 % 2.78 % 12.23 % 12.4 %


Annual Roi Comment


Definition and Formula of Return on Investment

Other ROI Ratios
Chemical Manufacturing Industry Roi Trends and Statistics
Basic Materials Sector Return On Investment Statistics
Roi Trends for overall market
WLK's Roi Ratio versus Chemical Manufacturing Industry, Basic Materials Sector and total Market
Highest Ranking Return On Investment
Lowest Ranking Return On Investment
Subscribers only: Roi for WLK's Competitors
Subscribers only: Roi for Westlake's Suppliers
Subscribers only: Return On Investment for WLK's Customers

Other Ratios
WLK's Roa WLK's Inventory Turnover Ratio WLK's Growth Rates WLK's Dividend Statistics
WLK's Profitability Ratios WLK's Asset Turnover Ratio WLK's Dividend Growth
WLK's Roe WLK's Valuation Ratios WLK's Financial Strength Ratios WLK's Dividend Payout Ratio



Companies with similar Return On Investment at Sep 30 2026, within Basic Materials Sector ROI

Date modified: 2026-11-06T12:56:29+00:00



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