Westlake Corporation (WLK) Revenue History
Annual and quarterly revenue from 1999 to present
WLK Revenue Over Time (1999–2025)
WLK Revenue Growth History
17 of 25 years with positive growth- FY1999 revenue growth
- N/A
- FY2000 revenue growth
- +31.6%
- FY2002 revenue growth
- -23.0%
- FY2003 revenue growth
- +32.7%
- FY2004 revenue growth
- +39.5%
- FY2005 revenue growth
- +23.0%
- FY2006 revenue growth
- +1.8%
- FY2007 revenue growth
- +28.5%
- FY2008 revenue growth
- +15.7%
- FY2009 revenue growth
- -37.0%
- FY2010 revenue growth
- +36.4%
- FY2011 revenue growth
- +14.1%
- FY2012 revenue growth
- -1.3%
- FY2013 revenue growth
- +5.3%
- FY2014 revenue growth
- +17.4%
- FY2015 revenue growth
- +1.1%
- FY2016 revenue growth
- +13.7%
- FY2017 revenue growth
- +58.4%
- FY2018 revenue growth
- +7.4%
- FY2019 revenue growth
- -6.0%
- FY2020 revenue growth
- -7.6%
- FY2021 revenue growth
- +57.0%
- FY2022 revenue growth
- +34.1%
- FY2023 revenue growth
- -20.6%
- FY2024 revenue growth
- -3.2%
- FY2025 revenue growth
- -8.0%
| Quarter | Revenue | YoY |
|---|---|---|
| Q1 2026 | $2.65B | -6.8% |
| Q4 2025 | $2.53B | -10.9% |
| Q3 2025 | $2.84B | -9.0% |
| Q2 2025 | $2.95B | -7.9% |
| Q1 2025 | $2.85B | -4.3% |
| Q4 2024 | $2.84B | +0.6% |
| Q3 2024 | $3.12B | +0.1% |
| Q2 2024 | $3.21B | -1.4% |
Multi-year avg. share of annual revenue by fiscal quarter
Revenue Breakdown (FY 2025)
WLK's revenue distribution by segment and geography for fiscal year 2025
By Product/Segment
By Geography
WLK Revenue Analysis (1999–2025)
Current Revenue & Growth
As of June 21, 2026, Westlake Corporation (WLK) generated trailing twelve-month (TTM) revenue of $10.98 billion, reflecting moderate decline in growth of -6.8% year-over-year. The most recent quarter (Q1 2026) recorded $2.65 billion in revenue, up 4.7% sequentially.
Historical Growth Trajectory
WLK's 5-year compound annual growth rate (CAGR) stands at +8.3%, indicating steady revenue expansion. The 3-year CAGR of -10.9% is below the 5-year average, signalling a growth deceleration in recent years. Westlake Corporation's highest annual revenue of $15.79 billion was recorded in 2022.
Revenue by Segment
WLK's revenue is primarily driven by Performance and Essential Materials (63%), and Housing and Infrastructure Products (37%). With over half of revenue concentrated in Performance and Essential Materials, the company has a focused business model while developing other growth vectors.
Peer Comparison
Compared to Basic Materials sector peers — including OLN (+2.6% YoY), LYB (-34.8% YoY), and HUN (-4.7% YoY) — WLK has outperformed the peer group in revenue growth. Compare WLK vs OLN →
WLK Revenue vs Peers
Revenue metrics vs comparable public companies
| Company | TTM Revenue | YoY Growth | 5Y CAGR | Op. Margin | Compare |
|---|---|---|---|---|---|
| WLKCurrent | $11.0B | -6.8% | +8.3% | -14.1% | |
 OLN | $6.8B | +2.6% | +3.3% | 1.7% | |
 LYB | $30.2B | -34.8% | +1.7% | -1.1% | |
 HUN | $5.7B | -4.7% | -1.1% | -0.7% | |
 EMN | $8.8B | -7.7% | +0.7% | 10.6% | |
 CE | $9.5B | -5.6% | +11.0% | 8.0% |
WLK Historical Revenue Data (1999–2025)
| Year | Revenue | YoY % | Gross Profit | Gross Margin | Op. Income | Op. Margin |
|---|---|---|---|---|---|---|
| 2025 | $11.17B | -8.0% | $289.0M | 2.6% | $-1,578,000,000 | -14.1% |
| 2024 | $12.14B | -3.2% | $1.96B | 16.1% | $875.0M | 7.2% |
| 2023 | $12.55B | -20.6% | $2.22B | 17.7% | $729.0M | 5.8% |
| 2022 | $15.79B | +34.1% | $4.07B | 25.8% | $3.05B | 19.3% |
| 2021 | $11.78B | +57.0% | $3.50B | 29.7% | $2.80B | 23.8% |
| 2020 | $7.50B | -7.6% | $1.02B | 13.6% | $429.0M | 5.7% |
| 2019 | $8.12B | -6.0% | $1.26B | 15.5% | $656.0M | 8.1% |
| 2018 | $8.63B | +7.4% | $1.99B | 23.0% | $1.41B | 16.3% |
| 2017 | $8.04B | +58.4% | $1.76B | 21.9% | $1.23B | 15.2% |
| 2016 | $5.08B | +13.7% | $983.0M | 19.4% | $583.0M | 11.5% |
| 2015 | $4.46B | +1.1% | $1.19B | 26.6% | $960.0M | 21.5% |
| 2014 | $4.42B | +17.4% | $1.32B | 29.8% | $1.12B | 25.5% |
| 2013 | $3.76B | +5.3% | $1.10B | 29.3% | $953.5M | 25.4% |
| 2012 | $3.57B | -1.3% | $737.0M | 20.6% | $615.4M | 17.2% |
| 2011 | $3.62B | +14.1% | $559.0M | 15.4% | $446.8M | 12.3% |
Full Stock Analysis
Deep dive into WLK consensus models and risk factors.
Intrinsic Valuation
DCF models, multiple analysis, and analyst estimates.
Historical Returns
27+ years return with dividends reinvested.
DCA Calculator
See how regular investing compounds over time.
Peer Comparison
Compare growth, multiples, and margins vs sector.
WLK — Frequently Asked Questions
Quick answers to the most common questions about buying WLK stock.
Is WLK's revenue growth accelerating or slowing?
WLK revenue is declining -6.8% year-over-year. TTM revenue fell to $11.0B, contrasting with the 5-year CAGR of +8.3%. The reversal reflects either macro headwinds or company-specific challenges.
What is WLK's revenue history from 1999 to 2026?
Westlake Corporation (WLK) revenue history spans 1999 to 2026. TTM revenue as of 2026 is $11.0B, growing at -6.8% YoY. The 5-year CAGR is +8.3%. Complete annual and quarterly revenue figures are available on this page, including gross profit, operating income, and margin trends.
What is WLK's long-term revenue growth rate (CAGR)?
Westlake Corporation's 5-year revenue CAGR of +8.3% reflects the variable nature of its business expansion. As of 2026, the current YoY growth rate of -6.8% is below this long-term average. CAGR is the most reliable measure of sustained revenue momentum for WLK.
Why does WLK's quarterly revenue fluctuate?
WLK quarterly revenue can fluctuate significantly between periods. A quarter-over-quarter (QoQ) change does not always indicate a trend; comparing the same quarter year-over-year (YoY) is a more reliable signal for underlying growth. Westlake Corporation's revenue data from 1999 to 2026 shows full historical quarterly detail on this page.
How is WLK's revenue distributed by segment?
WLK reports revenue broken down by product line and geographic region. The segment breakdown on this page shows which business units contribute the most to total revenue as of the latest fiscal year. Concentration in a single segment above 50% indicates category dependence, while a diversified mix signals more resilient revenue streams.
How does WLK's revenue compare to industry peers?
Westlake Corporation (WLK) with TTM revenue of $11.0B and -6.8% YoY growth can be benchmarked against sector peers using the comparison table on this page. Revenue growth relative to peers indicates market share gains or losses. The peer section shows TTM revenue, YoY growth, and operating margin for direct comparisons.