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WESTLAKE CORP
WLK - Company ID 0001262823
Market cap$9.58 B
Rank#987
Filings1,689
Market capitalization of WESTLAKE CORP
As of 2026-09-07, WESTLAKE CORP (WLK) has a market capitalization of $9.58 B, making it the #987 most valuable US-listed company.
Recent market cap readings
| Date | Market cap |
|---|---|
| 2026-09-07 | $9.58 B |
| 2026-09-06 | $9.58 B |
| 2026-09-05 | $9.58 B |
| 2026-09-04 | $9.58 B |
| 2026-09-03 | $9.56 B |
| 2026-09-02 | $9.77 B |
| 2026-09-01 | $9.51 B |
| 2026-08-31 | $9.54 B |
| 2026-08-30 | $9.70 B |
| 2026-08-29 | $9.70 B |
| 2026-08-28 | $9.66 B |
| 2026-08-27 | $9.47 B |
Market Cap of similar companies
Frequently asked questions
What is WESTLAKE CORP's market cap?
As of 2026-09-07, WESTLAKE CORP (WLK) has a market capitalization of $9.58 B, making it the #987 most valuable US-listed company.
Where does WESTLAKE CORP rank by market cap?
WESTLAKE CORP is the #987 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.