Westlake Chemical Corporation (NYSE:WLK) — Market Cap & Net Worth
Market Cap & Net Worth: Westlake Chemical Corporation (WLK)
Westlake Chemical Corporation (NYSE:WLK) has a market capitalization of $8.95 Billion ($8.95 Billion) as of September 16, 2026. Listed on the NYSE stock exchange, this USA-based company holds position #2424 globally and #893 in its home market, demonstrating a -6.38% decrease in market value over the past year.
Market capitalization, also known as net worth in stock markets, is calculated by multiplying Westlake Chemical Corporation's stock price $70.02 by its total outstanding shares 127796548 (127.80 Million). Also see WLK current and non-current assets for a full breakdown of the balance sheet.
Westlake Chemical Corporation Market Cap History: 2015 to 2026
Westlake Chemical Corporation's market capitalization history from 2015 to 2026. Data shows growth from $6.13 Billion to $8.95 Billion (2.80% CAGR). Also see Westlake Chemical Corporation cash flow conversion for how efficiently the company converts equity into cash flow.
Index Memberships
Westlake Chemical Corporation is a constituent of 1 market index:
| Index | Total Market Cap | Weight (%) | Rank by Market Cap |
|---|---|---|---|
|
S&P Midcap 400
MID
|
$3.41 Trillion | 0.12% | #142 of 401 |
Weight: Westlake Chemical Corporation's market cap as a percentage of total index value. Rank: Position among all constituents by market cap.
Westlake Chemical Corporation Market Cap to Earnings & Revenue Ratios Timeline
This chart shows how Westlake Chemical Corporation's valuation ratios have evolved. The Price to Sales (P/S) ratio compares market cap to revenue, while the Price to Earnings (P/E) ratio compares market cap to net income. Lower values may indicate a more undervalued company relative to its financial performance. Check WLK stock price for real-time trading data and today's change.
Latest Price to Sales (P/S) Ratio
0.85x
Westlake Chemical Corporation's market cap is 0.85 times its annual revenue
Latest Price to Earnings (P/E) Ratio
N/A
P/E ratio not applicable due to negative or zero earnings
What These Ratios Tell Investors:
- Price to Sales (P/S) Ratio: Shows how much investors are paying for each dollar of the company's sales. Lower P/S ratios may indicate undervaluation.
- Price to Earnings (P/E) Ratio: Shows how much investors are paying for each dollar of the company's earnings. This is one of the most common valuation metrics.
- Trends in these ratios over time can indicate changing investor sentiment about the company's future growth prospects.
- Industry comparison provides context for whether the company is valued higher or lower than peers.
| Year | Market Cap (USD) | Revenue (USD) | Net Income (USD) | P/S Ratio | P/E Ratio |
|---|---|---|---|---|---|
| 2016 | $6.42 Billion | $5.08 Billion | $399.00 Million | 1.27x | 16.10x |
| 2017 | $12.36 Billion | $8.04 Billion | $1.30 Billion | 1.54x | 9.48x |
| 2018 | $7.75 Billion | $8.63 Billion | $996.00 Million | 0.90x | 7.78x |
| 2019 | $8.35 Billion | $8.12 Billion | $421.00 Million | 1.03x | 19.83x |
| 2020 | $9.90 Billion | $7.50 Billion | $330.00 Million | 1.32x | 29.99x |
| 2021 | $11.93 Billion | $11.78 Billion | $2.02 Billion | 1.01x | 5.92x |
| 2022 | $12.74 Billion | $15.79 Billion | $2.25 Billion | 0.81x | 5.67x |
| 2023 | $17.63 Billion | $12.55 Billion | $479.00 Million | 1.41x | 36.81x |
| 2024 | $14.65 Billion | $12.14 Billion | $602.00 Million | 1.21x | 24.34x |
| 2025 | $9.45 Billion | $11.17 Billion | -$1.51 Billion | 0.85x | N/A |
Competitor Companies of WLK by Market Capitalization
Companies near Westlake Chemical Corporation in the global market cap rankings as of September 16, 2026. Review WLK tangible net worth ratio to assess the quality of the company's equity after excluding intangible assets.
Key companies related to Westlake Chemical Corporation by market ranking:
- Linde plc Ordinary Shares (NASDAQ:LIN): Ranked #97 globally with a market cap of $213.42 Billion USD.
- AIR LIQUIDE ADR 1/5/EO 11 (F:AILA): Ranked #242 globally with a market cap of $103.86 Billion USD ( €88.84 Billion EUR).
- Air Liquide SA (PA:AI): Ranked #252 globally with a market cap of $101.06 Billion USD ( €86.44 Billion EUR).
- Sherwin-Williams Co (NYSE:SHW): Ranked #337 globally with a market cap of $80.12 Billion USD.
| Rank | Company | Symbol | Market Cap | Price |
|---|---|---|---|---|
| #97 | Linde plc Ordinary Shares | NASDAQ:LIN | $213.42 Billion | $462.96 |
| #242 | AIR LIQUIDE ADR 1/5/EO 11 | F:AILA | $103.86 Billion | €36.60 |
| #252 | Air Liquide SA | PA:AI | $101.06 Billion | €166.24 |
| #337 | Sherwin-Williams Co | NYSE:SHW | $80.12 Billion | $323.22 |
Westlake Chemical Corporation Historical Marketcap From 2015 to 2026
Between 2015 and today, Westlake Chemical Corporation's market cap moved from $6.13 Billion to $ 8.95 Billion, with a yearly change of 2.80%.
| Year | Market Cap | Change (%) |
|---|---|---|
| 2026 | $8.95 Billion | -5.30% |
| 2025 | $9.45 Billion | -35.51% |
| 2024 | $14.65 Billion | -16.90% |
| 2023 | $17.63 Billion | +38.38% |
| 2022 | $12.74 Billion | +6.81% |
| 2021 | $11.93 Billion | +20.54% |
| 2020 | $9.90 Billion | +18.52% |
| 2019 | $8.35 Billion | +7.73% |
| 2018 | $7.75 Billion | -37.27% |
| 2017 | $12.36 Billion | +92.39% |
| 2016 | $6.42 Billion | +4.71% |
| 2015 | $6.13 Billion | -- |
End of Day Market Cap According to Different Sources
On Sep 16th, 2026 the market cap of Westlake Chemical Corporation was reported to be:
| Source | Market Cap |
|---|---|
| Yahoo Finance | $8.95 Billion USD |
| MoneyControl | $8.95 Billion USD |
| MarketWatch | $8.95 Billion USD |
| marketcap.company | $8.95 Billion USD |
| Reuters | $8.95 Billion USD |
Market cap values may vary slightly between sources due to differences in calculation methods, timing, and data refresh rates.
About Westlake Chemical Corporation
Westlake Corporation manufactures and markets performance and essential materials, and housing and infrastructure products in the United States, Canada, Germany, China, Mexico, Brazil, France, Italy, and internationally. It operates through two segments, Performance and Essential Materials and The Housing and Infrastructure Products. The Performance and Essential Materials segment offers ethylene… Read more