Westlake Corporation (WLK) Revenue by Year

WLK

Westlake Corporation generated $11.2B in revenue in fiscal year 2025. This represents a decrease of 8.0% from the prior fiscal year. Over the trailing 12 months, Q3 FY2025 through Q2 FY2026, the same line adds up to $11.3B in revenue. The table below carries 15 fiscal years, from 2011 to 2025, and the quarters Westlake Corporation has filed alongside them.

FY2025 annual

Revenue $11.2B

YoY -8.0%

5Y CAGR +8.3%

10Y CAGR +9.6%

Source SEC Filings (10-K/10-Q) Latest period Q2 FY2026, ended Jun 30, 2026 Reported Aug 5, 2026 Currency USD

Annual figures, oldest first. Point at a bar to read its period.

WLK Revenue by Fiscal Year

Figures are as reported in USD. Each change compares the year with the year before it, and each column links to the filing it was taken from.

Metric	TTM	FY2510-K	FY2410-K	FY2310-K	FY2210-K	FY2110-K	FY2010-K	FY1910-K	FY1810-K	FY1710-K	FY1610-K	FY1510-K	FY1410-K	FY1310-K	FY1210-K	FY1110-K
Revenue	$11.3B	$11.2B-8.0%	$12.1B-3.2%	$12.5B-20.6%	$15.8B+34.1%	$11.8B+57.0%	$7.5B-7.6%	$8.1B-6.0%	$8.6B+7.4%	$8.0B+58.4%	$5.1B+13.7%	$4.5B+1.1%	$4.4B+17.4%	$3.8B+5.3%	$3.6B-1.3%	$3.6B

TTM is the trailing twelve months, Q3 FY2025 through Q2 FY2026, summed from the four most recent quarterly filings.

WLK Revenue by Quarter

Figures are as reported in USD. Each change compares the quarter with the same quarter a year earlier.

Metric	Q2'2610-Q	Q1'2610-Q	Q4'2510-Q	Q3'2510-Q	Q2'2510-Q	Q1'2510-Q	Q4'2410-K	Q3'2410-Q	Q2'2410-Q	Q1'2410-Q	Q4'2310-K	Q3'2310-Q
Revenue	$3.3B+10.8%	$2.7B-6.8%	$2.5B-10.9%	$2.8B-9.0%	$3.0B-7.9%	$2.8B-4.3%	$2.8B+0.6%	$3.1B+0.1%	$3.2B-1.4%	$3.0B-11.4%	$2.8B-14.3%	$3.1B-21.3%

What revenue means

Revenue is everything the company billed its customers over the period, counted before any cost of running the business comes out of it.

More Westlake Corporation financials

Frequently Asked Questions

What was Westlake Corporation's revenue in fiscal year 2025?

Westlake Corporation generated $11.2B in revenue in fiscal year 2025.

How fast is Westlake Corporation's revenue growing?

Westlake Corporation (WLK) revenue fell by 8.0% year over year, from $12.1B to $11.2B in fiscal year 2025.

What is Westlake Corporation's revenue over the last twelve months?

Westlake Corporation (WLK) reported $11.3B in revenue over the trailing 12 months, Q3 FY2025 through Q2 FY2026, summed from the four most recent quarterly filings.

How has Westlake Corporation's revenue changed over the years?

Across the 15 fiscal years this page covers, Westlake Corporation (WLK) revenue went from $3.6B in fiscal year 2011 to $11.2B in fiscal year 2025.

What was Westlake Corporation's revenue in the most recent quarter?

Westlake Corporation (WLK) reported $3.3B in revenue in Q2 2026. This represents an increase of 10.8% from the same quarter a year earlier.

What does revenue mean on a financial statement?

Revenue is everything the company billed its customers over the period, counted before any cost of running the business comes out of it. This page lists what Westlake Corporation (WLK) reported on that line in every period on record.