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WESTLAKE CORP — Quarterly Financials
Quarterly figures from SEC EDGAR XBRL filings (10-Q)
These figures are extracted from XBRL-tagged quarterly reports (10-Q) that WESTLAKE CORP filed with the SEC. Values are as reported for each individual quarter (Q1, Q2, Q3, Q4) — not cumulative year-to-date. Negative figures indicate a loss.
Revenue — By Quarter
Quarter
Fiscal Year
Period End
Value
Filed
Q3
2025
Sep 30, 2025
$2.84B
Oct 31, 2025
Q2
2025
Jun 30, 2025
$2.95B
Aug 6, 2025
Q1
2025
Mar 31, 2025
$2.85B
May 2, 2025
Q3
2025
Sep 30, 2024
$3.12B
Oct 31, 2025
Q2
2025
Jun 30, 2024
$3.21B
Aug 6, 2025
Q1
2025
Mar 31, 2024
$2.98B
May 2, 2025
Q3
2024
Sep 30, 2023
$3.12B
Nov 6, 2024
Q2
2024
Jun 30, 2023
$3.25B
Aug 9, 2024
Q1
2024
Mar 31, 2023
$3.36B
May 2, 2024
Q3
2023
Sep 30, 2022
$3.96B
Nov 2, 2023
Q2
2023
Jun 30, 2022
$4.48B
Aug 3, 2023
Q1
2023
Mar 31, 2022
$4.06B
May 4, 2023
Q3
2022
Sep 30, 2021
$3.06B
Nov 3, 2022
Q2
2022
Jun 30, 2021
$2.86B
Aug 3, 2022
Q1
2022
Mar 31, 2021
$2.36B
May 4, 2022
Q3
2021
Sep 30, 2020
$1.90B
Nov 3, 2021
Q2
2021
Jun 30, 2020
$1.71B
Aug 3, 2021
Q1
2021
Mar 31, 2020
$1.93B
May 5, 2021
Q3
2020
Sep 30, 2019
$2.07B
Nov 4, 2020
Q2
2020
Jun 30, 2019
$2.14B
Aug 6, 2020
Revenue (Net Sales) — By Quarter
Quarter
Fiscal Year
Period End
Value
Filed
Q2
2018
Jun 30, 2018
$2.24B
Aug 2, 2018
Q1
2018
Mar 31, 2018
$2.15B
May 3, 2018
Q3
2017
Sep 30, 2017
$2.11B
Nov 7, 2017
Q2
2018
Jun 30, 2017
$1.98B
Aug 2, 2018
Q1
2018
Mar 31, 2017
$1.94B
May 3, 2018
Q3
2017
Sep 30, 2016
$1.28B
Nov 7, 2017
Q2
2017
Jun 30, 2016
$1.09B
Aug 3, 2017
Q1
2017
Mar 31, 2016
$975.19M
May 3, 2017
Q3
2016
Sep 30, 2015
$1.19B
Nov 9, 2016
Q2
2016
Jun 30, 2015
$1.19B
Aug 9, 2016
Q1
2016
Mar 31, 2015
$1.10B
May 4, 2016
Q3
2015
Sep 30, 2014
$1.25B
Nov 4, 2015
Q2
2015
Jun 30, 2014
$998.58M
Aug 5, 2015
Q1
2015
Mar 31, 2014
$1.03B
May 6, 2015
Q3
2014
Sep 30, 2013
$1.00B
Nov 7, 2014
Q2
2014
Jun 30, 2013
$939.05M
Aug 6, 2014
Q1
2014
Mar 31, 2013
$864.65M
May 6, 2014
Q3
2013
Sep 30, 2012
$821.18M
Nov 7, 2013
Q2
2013
Jun 30, 2012
$913.96M
Jul 31, 2013
Q1
2013
Mar 31, 2012
$1.03B
May 7, 2013
Net Income — By Quarter
Quarter
Fiscal Year
Period End
Value
Filed
Q3
2025
Sep 30, 2025
($782.00M)
Oct 31, 2025
Q2
2025
Jun 30, 2025
($142.00M)
Aug 6, 2025
Q1
2025
Mar 31, 2025
($40.00M)
May 2, 2025
Q3
2025
Sep 30, 2024
$108.00M
Oct 31, 2025
Q2
2025
Jun 30, 2024
$313.00M
Aug 6, 2025
Q1
2025
Mar 31, 2024
$174.00M
May 2, 2025
Q3
2024
Sep 30, 2023
$285.00M
Nov 6, 2024
Q2
2024
Jun 30, 2023
$297.00M
Aug 9, 2024
Q1
2024
Mar 31, 2023
$394.00M
May 2, 2024
Q3
2023
Sep 30, 2022
$401.00M
Nov 2, 2023
Q2
2023
Jun 30, 2022
$858.00M
Aug 3, 2023
Q1
2023
Mar 31, 2022
$756.00M
May 4, 2023
Q3
2022
Sep 30, 2021
$607.00M
Nov 3, 2022
Q2
2022
Jun 30, 2021
$522.00M
Aug 3, 2022
Q1
2022
Mar 31, 2021
$242.00M
May 4, 2022
Q3
2021
Sep 30, 2020
$57.00M
Nov 3, 2021
Q2
2021
Jun 30, 2020
$15.00M
Aug 3, 2021
Q1
2021
Mar 31, 2020
$145.00M
May 5, 2021
Q3
2020
Sep 30, 2019
$158.00M
Nov 4, 2020
Q2
2020
Jun 30, 2019
$119.00M
Aug 6, 2020
Operating Income — By Quarter
Quarter
Fiscal Year
Period End
Value
Filed
Q3
2025
Sep 30, 2025
($766.00M)
Oct 31, 2025
Q2
2025
Jun 30, 2025
($109.00M)
Aug 6, 2025
Q1
2025
Mar 31, 2025
($32.00M)
May 2, 2025
Q3
2025
Sep 30, 2024
$180.00M
Oct 31, 2025
Q2
2025
Jun 30, 2024
$406.00M
Aug 6, 2025
Q1
2025
Mar 31, 2024
$223.00M
May 2, 2025
Q3
2024
Sep 30, 2023
$349.00M
Nov 6, 2024
Q2
2024
Jun 30, 2023
$396.00M
Aug 9, 2024
Q1
2024
Mar 31, 2023
$536.00M
May 2, 2024
Q3
2023
Sep 30, 2022
$516.00M
Nov 2, 2023
Q2
2023
Jun 30, 2022
$1.18B
Aug 3, 2023
Q1
2023
Mar 31, 2022
$1.03B
May 4, 2023
Q3
2022
Sep 30, 2021
$861.00M
Nov 3, 2022
Q2
2022
Jun 30, 2021
$720.00M
Aug 3, 2022
Q1
2022
Mar 31, 2021
$346.00M
May 4, 2022
Q3
2021
Sep 30, 2020
$79.00M
Nov 3, 2021
Q2
2021
Jun 30, 2020
$36.00M
Aug 3, 2021
Q1
2021
Mar 31, 2020
$136.00M
May 5, 2021
Q3
2020
Sep 30, 2019
$226.00M
Nov 4, 2020
Q2
2020
Jun 30, 2019
$194.00M
Aug 6, 2020