Westlake Corporation (WLK)

NYSE Materials Specialty Chemicals S&P MidCap 400

$63.49

-2.79 (-4.21%)

Close of Nov 06, 2026 · end-of-day data

Source: Westlake Corporation's 10-K / 10-Q XBRL data on SEC EDGAR · fetched Nov 05, 2026

Revenue, net income & free cash flow

Income statement

fiscal years · USD

Fiscal year	FY2016	FY2017	FY2018	FY2019	FY2020	FY2021	FY2022	FY2023	FY2024	FY2025
Revenue	$5.08B	$8.04B	$8.63B	$8.12B	$7.50B	$11.78B	$15.79B	$12.55B	$12.14B	$11.17B
Cost of revenue	$4.09B	$6.28B	$6.65B	$6.86B	$6.48B	$8.28B	$11.72B	$10.33B	$10.19B	$10.36B
Gross profit	$983.00M	$1.76B	$1.99B	$1.26B	$1.02B	$3.50B	$4.07B	$2.22B	$1.96B	$813.00M
Selling, general & admin	$258.00M	$399.00M	$445.00M	$458.00M	$449.00M	$551.00M	$835.00M	$865.00M	$874.00M	$900.00M
Operating income	$583.00M	$1.23B	$1.41B	$656.00M	$429.00M	$2.80B	$3.05B	$729.00M	$875.00M	-$1.58B
Interest expense	$79.00M	$159.00M	$126.00M	$124.00M	$142.00M	$176.00M	$177.00M	$165.00M	$159.00M	$171.00M
Pre-tax income	$558.00M	$1.08B	$1.33B	$570.00M	$331.00M	$2.68B	$2.95B	$700.00M	$938.00M	-$1.60B
Income tax	$138.00M	-$258.00M	$300.00M	$108.00M	-$42.00M	$607.00M	$649.00M	$178.00M	$291.00M	-$126.00M
Net income	$399.00M	$1.30B	$996.00M	$421.00M	$330.00M	$2.02B	$2.25B	$479.00M	$602.00M	-$1.51B
EBITDA	$961.00M	$1.83B	$2.05B	$1.37B	$1.20B	$3.64B	$4.11B	$1.83B	$1.99B	-$400.00M
EPS (basic)	$3.07	$10.05	$7.66	$3.26	$2.57	$15.66	$17.46	$3.73	$4.66	$-11.70
EPS (diluted)	$3.06	$10.00	$7.62	$3.25	$2.56	$15.58	$17.34	$3.70	$4.64	$-11.70
Diluted shares	129.97M	129.54M	129.99M	128.76M	128.09M	128.70M	128.85M	128.60M	129.21M	128.26M
Gross margin	19.4%	21.9%	23.0%	15.5%	13.6%	29.7%	25.8%	17.7%	16.1%	7.3%
Operating margin	11.5%	15.2%	16.3%	8.1%	5.7%	23.8%	19.3%	5.8%	7.2%	-14.1%
Net margin	7.9%	16.2%	11.5%	5.2%	4.4%	17.1%	14.2%	3.8%	5.0%	-13.5%

Balance sheet

fiscal years · USD

Fiscal year	FY2016	FY2017	FY2018	FY2019	FY2020	FY2021	FY2022	FY2023	FY2024	FY2025
Cash & equivalents	$459.00M	$1.53B	$753.00M	$728.00M	$1.31B	$1.91B	$2.23B	$3.30B	$2.92B	$2.72B
Short-term investments	$0	—	—	—	—	—	—	—	$0	$204.00M
Receivables	$810.00M	$961.00M	$952.00M	$938.00M	$1.08B	$1.74B	$1.65B	$1.39B	$1.31B	$1.23B
Inventory	$801.00M	$900.00M	$1.01B	$936.00M	$918.00M	$1.41B	$1.87B	$1.62B	$1.70B	$1.65B
Total current assets	$2.41B	$3.46B	$2.84B	$2.74B	$3.48B	$5.26B	$5.97B	$6.61B	$6.21B	$6.22B
Goodwill	$947.00M	$1.01B	$1.00B	$1.07B	$1.08B	$2.02B	$2.16B	$2.04B	$2.03B	$1.31B
Total assets	$10.89B	$12.08B	$11.60B	$13.26B	$13.84B	$18.46B	$20.55B	$21.04B	$20.75B	$19.96B
Total current liabilities	$1.18B	$1.97B	$1.18B	$1.24B	$1.36B	$2.34B	$2.30B	$2.79B	$2.22B	$2.77B
Short-term debt	$0	$710.00M	$0	—	$0	$269.00M	$0	$299.00M	$6.00M	$497.00M
Long-term debt	$3.68B	$3.13B	$2.67B	$3.44B	$3.57B	$4.91B	$4.88B	$4.61B	$4.56B	$5.09B
Total debt	$3.68B	$3.84B	$2.67B	$3.44B	$3.57B	$5.18B	$4.88B	$4.91B	$4.56B	$5.58B
Total liabilities	$7.00B	$6.71B	$5.53B	$6.86B	$7.26B	$9.93B	$10.09B	$10.27B	$9.71B	$10.67B
Shareholders' equity	$3.52B	$4.87B	$5.59B	$5.86B	$6.04B	$7.96B	$9.93B	$10.24B	$10.53B	$8.79B

Cash flow

fiscal years · USD

Fiscal year	FY2016	FY2017	FY2018	FY2019	FY2020	FY2021	FY2022	FY2023	FY2024	FY2025
Operating cash flow	$867.00M	$1.53B	$1.41B	$1.30B	$1.30B	$2.39B	$3.40B	$2.34B	$1.31B	$465.00M
Capital expenditures	$629.00M	$577.00M	$702.00M	$787.00M	$525.00M	$658.00M	$1.11B	$1.03B	$1.01B	$995.00M
Free cash flow	$238.00M	$951.00M	$707.00M	$514.00M	$772.00M	$1.74B	$2.29B	$1.30B	$306.00M	-$530.00M
Investing cash flow	-$2.56B	-$652.00M	-$754.00M	-$1.95B	-$509.00M	-$3.21B	-$2.48B	-$1.04B	-$1.00B	-$1.22B
Financing cash flow	$1.69B	$6.00M	-$1.43B	$630.00M	-$216.00M	$1.44B	-$587.00M	-$245.00M	-$650.00M	$530.00M
Dividends paid	$97.00M	$103.00M	$120.00M	$132.00M	$137.00M	$145.00M	$169.00M	$221.00M	$264.00M	$272.00M
Share buybacks	$67.00M	$0	$106.00M	$30.00M	$54.00M	$30.00M	$101.00M	$23.00M	$60.00M	$63.00M
Stock-based compensation	$14.00M	$23.00M	$22.00M	$25.00M	$29.00M	$31.00M	$36.00M	$43.00M	$41.00M	$41.00M
Depreciation & amortization	$378.00M	$601.00M	$641.00M	$713.00M	$773.00M	$840.00M	$1.06B	$1.10B	$1.11B	$1.18B

Income statement

quarters · USD

Quarter ended	Dec 2023	Mar 2024	Jun 2024	Sep 2024	Dec 2024	Mar 2025	Jun 2025	Sep 2025	Dec 2025	Mar 2026	Jun 2026	Sep 2026
Revenue	$2.83B	$2.98B	$3.21B	$3.12B	$2.84B	$2.85B	$2.95B	$2.84B	$2.53B	$2.65B	$3.27B	$2.98B
Cost of revenue	$2.63B	$2.51B	$2.54B	$2.62B	$2.52B	$2.61B	$2.69B	$2.60B	$2.45B	$2.54B	$2.62B	$2.60B
Gross profit	$199.00M	$466.00M	$664.00M	$499.00M	$328.00M	$232.00M	$258.00M	$236.00M	$87.00M	$112.00M	$652.00M	$382.00M
Selling, general & admin	$224.00M	$209.00M	$224.00M	$215.00M	$226.00M	$227.00M	$221.00M	$228.00M	$224.00M	$236.00M	$253.00M	$250.00M
Operating income	-$552.00M	$223.00M	$406.00M	$180.00M	$66.00M	-$32.00M	-$109.00M	-$766.00M	-$671.00M	-$172.00M	$364.00M	$43.00M
Interest expense	$41.00M	$40.00M	$41.00M	$39.00M	$39.00M	$39.00M	$40.00M	$41.00M	$51.00M	$56.00M	$55.00M	$52.00M
Pre-tax income	-$558.00M	$233.00M	$424.00M	$185.00M	$96.00M	-$34.00M	-$125.00M	-$775.00M	-$663.00M	-$190.00M	$338.00M	$8.00M
Income tax	-$71.00M	$48.00M	$101.00M	$65.00M	$77.00M	$1.00M	$6.00M	-$3.00M	-$130.00M	-$33.00M	$67.00M	-$10.00M
Net income	-$497.00M	$174.00M	$313.00M	$108.00M	$7.00M	-$40.00M	-$142.00M	-$782.00M	-$544.00M	-$169.00M	$260.00M	$6.00M
EBITDA	-$270.00M	$496.00M	$685.00M	$461.00M	$347.00M	$251.00M	$186.00M	-$463.00M	-$374.00M	$112.00M	$650.00M	$333.00M
EPS (basic)	$-3.88	$1.35	$2.42	$0.84	$0.05	$-0.31	$-1.11	$-6.06	$-4.22	$-1.31	$2.02	$0.05
EPS (diluted)	$-3.86	$1.34	$2.40	$0.83	$0.06	$-0.31	$-1.11	$-6.06	$-4.22	$-1.31	$2.01	$0.05
Diluted shares	88.82K	129.02M	129.35M	129.34M	-30.64K	128.31M	128.24M	128.25M	-5.62K	127.99M	128.50M	127.96M
Gross margin	7.0%	15.7%	20.7%	16.0%	11.5%	8.2%	8.7%	8.3%	3.4%	4.2%	19.9%	12.8%
Operating margin	-19.5%	7.5%	12.7%	5.8%	2.3%	-1.1%	-3.7%	-27.0%	-26.5%	-6.5%	11.1%	1.4%
Net margin	-17.6%	5.8%	9.8%	3.5%	0.2%	-1.4%	-4.8%	-27.6%	-21.5%	-6.4%	7.9%	0.2%

Balance sheet

quarters · USD

Quarter ended	Dec 2023	Mar 2024	Jun 2024	Sep 2024	Dec 2024	Mar 2025	Jun 2025	Sep 2025	Dec 2025	Mar 2026	Jun 2026	Sep 2026
Cash & equivalents	$3.30B	$3.11B	$3.04B	$2.92B	$2.92B	$2.30B	$2.08B	$1.93B	$2.72B	$2.27B	$1.64B	$1.76B
Short-term investments	—	—	—	—	$0	$183.00M	$192.00M	$198.00M	$204.00M	$205.00M	$209.00M	$207.00M
Receivables	$1.39B	$1.52B	$1.67B	$1.56B	$1.31B	$1.46B	$1.59B	$1.43B	$1.23B	$1.36B	$1.69B	$1.49B
Inventory	$1.62B	$1.66B	$1.68B	$1.75B	$1.70B	$1.78B	$1.73B	$1.73B	$1.65B	$1.68B	$1.75B	$1.81B
Total current assets	$6.61B	$6.53B	$6.61B	$6.55B	$6.21B	$6.02B	$5.95B	$5.75B	$6.22B	$5.95B	$5.69B	$5.64B
Goodwill	$2.04B	$2.04B	$2.04B	$2.04B	$2.03B	$2.03B	$2.04B	$1.31B	$1.31B	$1.34B	$1.35B	$1.35B
Total assets	$21.04B	$20.96B	$21.08B	$21.11B	$20.75B	$20.71B	$20.81B	$19.81B	$19.96B	$19.71B	$19.44B	$19.27B
Total current liabilities	$2.79B	$2.65B	$2.54B	$2.35B	$2.22B	$2.29B	$2.40B	$2.90B	$2.77B	$2.74B	$2.32B	$2.37B
Short-term debt	$299.00M	$300.00M	$300.00M	$0	$6.00M	$4.00M	$3.00M	$750.00M	$497.00M	$496.00M	$0	$0
Long-term debt	$4.61B	$4.59B	$4.58B	$4.62B	$4.56B	$4.59B	$4.65B	$3.91B	$5.09B	$5.07B	$5.07B	$5.06B
Total debt	$4.91B	$4.89B	$4.88B	$4.62B	$4.56B	$4.59B	$4.66B	$4.66B	$5.58B	$5.57B	$5.07B	$5.06B
Total liabilities	$10.27B	$10.11B	$9.99B	$9.92B	$9.71B	$9.79B	$10.02B	$9.88B	$10.67B	$10.66B	$10.23B	$10.11B
Shareholders' equity	$10.24B	$10.33B	$10.57B	$10.66B	$10.53B	$10.41B	$10.28B	$9.43B	$8.79B	$8.55B	$8.71B	$8.66B

Cash flow

quarters · USD

Quarter ended	Dec 2023	Mar 2024	Jun 2024	Sep 2024	Dec 2024	Mar 2025	Jun 2025	Sep 2025	Dec 2025	Mar 2026	Jun 2026	Sep 2026
Operating cash flow	$573.00M	$169.00M	$237.00M	$474.00M	$434.00M	-$77.00M	$135.00M	$182.00M	$225.00M	-$94.00M	$318.00M	$395.00M
Capital expenditures	$282.00M	$272.00M	$231.00M	$220.00M	$285.00M	$248.00M	$267.00M	$239.00M	$241.00M	$209.00M	$207.00M	$175.00M
Free cash flow	$291.00M	-$103.00M	$6.00M	$254.00M	$149.00M	-$325.00M	-$132.00M	-$57.00M	-$16.00M	-$303.00M	$111.00M	$220.00M
Investing cash flow	-$287.00M	-$272.00M	-$223.00M	-$241.00M	-$265.00M	-$434.00M	-$292.00M	-$242.00M	-$255.00M	-$271.00M	-$320.00M	-$188.00M
Financing cash flow	-$70.00M	-$74.00M	-$72.00M	-$371.00M	-$133.00M	-$115.00M	-$82.00M	-$88.00M	$815.00M	-$82.00M	-$622.00M	-$85.00M
Dividends paid	$65.00M	$65.00M	$65.00M	$67.00M	$67.00M	$68.00M	$68.00M	$68.00M	$68.00M	$68.00M	$69.00M	$68.00M
Share buybacks	$0	$0	$0	$0	$60.00M	$30.00M	$0	$0	$33.00M	$0	$30.00M	$0
Stock-based compensation	$12.00M	$9.00M	$11.00M	$11.00M	$10.00M	$7.00M	$12.00M	$11.00M	$11.00M	$7.00M	$13.00M	$12.00M
Depreciation & amortization	$282.00M	$273.00M	$279.00M	$281.00M	$281.00M	$283.00M	$295.00M	$303.00M	$297.00M	$284.00M	$286.00M	$290.00M

Quarterly figures are rebuilt from the year-to-date totals companies report — Q4 is the full year minus the first nine months, since no 10-Q is filed for it. Values are as filed; later restatements replace earlier ones. Fiscal years are labelled by the calendar year in which they end.