Westlake (WLK) Market Capitalization (2010 - 2026)
Westlake's Market Capitalization was $9.33 billion in Q2 2026, down 4.2% from $9.74 billion a year earlier and down 37.7% from the prior quarter.
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Analysis
Westlake (WLK) Market Capitalization (2010 - 2026) Analysis & Trends
For FY2025, Market Capitalization at Westlake came in at $9.46 billion, down 35.7% from FY2024.
- Market Capitalization shows a five-year compound annual growth rate of -1.9% (FY2020 to FY2025).
- In earlier years, Market Capitalization was $14.7 billion in FY2024 (-18.1%), $17.95 billion in FY2023 (+37.4%), $13.06 billion in FY2022 (+5.1%) and $12.42 billion in FY2021 (+19.1%).
- The Q2 2026 figure marks the lowest quarterly Market Capitalization since Q3 2020.
- Compared with a year earlier, Market Capitalization was higher in two of the last eight quarters, with an average decline of 18.9%.
- The best year-over-year quarter for Market Capitalization over five years was Q3 2021 (growth of 44.3%); the worst was Q3 2025 (a decline of 48.9%).
- Per Business Quant data, WLK's Market Capitalization in the three quarters before Q2 2026 was $14.97 billion (Q1 2026), $9.46 billion (Q4 2025) and $9.88 billion (Q3 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) |
|---|---|---|---|---|
| 1 | Linde | 218.21 Bn | 201.33 Bn | 4.43 Bn |
| 2 | Corning | 136.71 Bn | 129.84 Bn | 1.63 Bn |
| 3 | Sherwin Williams | 80.23 Bn | 79.27 Bn | 3.34 Bn |
| 4 | Air Products & Chemicals | 62.17 Bn | 60.07 Bn | 1.04 Bn |
| 5 | Corteva | 51.95 Bn | 40.75 Bn | 3.66 Bn |
| 6 | LyondellBasell Industries | 37.59 Bn | 27.21 Bn | 2.04 Bn |
| 7 | Nutrien | 34.30 Bn | 31.17 Bn | 3.25 Bn |
| 8 | Qnity Electronics | 26.28 Bn | 23.71 Bn | 666.00 Mn |
| 9 | Ati | 25.72 Bn | 23.87 Bn | 309.80 Mn |
| 10 | Westlake | 8.10 Bn | -775.70 Mn | 652.00 Mn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | 9.33 Bn |
| Mar 31, 2026 | 14.97 Bn |
| Dec 31, 2025 | 9.46 Bn |
| Sep 30, 2025 | 9.88 Bn |
| Jun 30, 2025 | 9.74 Bn |
| Mar 31, 2025 | 12.83 Bn |
| Dec 31, 2024 | 14.70 Bn |
| Sep 30, 2024 | 19.34 Bn |
| Jun 30, 2024 | 18.62 Bn |
| Mar 31, 2024 | 19.65 Bn |
| Dec 31, 2023 | 17.95 Bn |
| Sep 30, 2023 | 15.98 Bn |
| Jun 30, 2023 | 15.25 Bn |
| Mar 31, 2023 | 14.80 Bn |
| Dec 31, 2022 | 13.06 Bn |
| Sep 30, 2022 | 11.08 Bn |
| Jun 30, 2022 | 12.54 Bn |
| Mar 31, 2022 | 15.84 Bn |
| Dec 31, 2021 | 12.42 Bn |
| Sep 30, 2021 | 11.65 Bn |
API Access
Westlake Market Capitalization API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=market-capitalization&ticker=WLK&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "market-capitalization", "ticker": "WLK", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=market-capitalization&ticker=WLK&period=max&api_key=YOUR_API_KEY");
const data = await res.json();